SimpleActivity

java.lang.Object
- AppCompatActivity
- - stanford.androidlib.SimpleActivity

All Implemented Interfaces:

MediaPlayer.OnCompletionListener, TextToSpeech.OnInitListener, GestureDetector.OnDoubleTapListener, GestureDetector.OnGestureListener, MenuItem.OnMenuItemClickListener, ScaleGestureDetector.OnScaleGestureListener, View.OnClickListener, View.OnDragListener, View.OnFocusChangeListener, View.OnGenericMotionListener, View.OnHoverListener, View.OnKeyListener, View.OnLongClickListener, View.OnTouchListener, ViewStub.OnInflateListener, AdapterView.OnItemClickListener, AdapterView.OnItemLongClickListener, AdapterView.OnItemSelectedListener, CompoundButton.OnCheckedChangeListener, RadioGroup.OnCheckedChangeListener, OnSwipeListener.OnScaleListenerImpl, OnSwipeListener.OnSwipeListenerImpl
```
public abstract class SimpleActivity
extends AppCompatActivity
implements View.OnClickListener, View.OnTouchListener, View.OnDragListener, View.OnFocusChangeListener, View.OnGenericMotionListener, View.OnHoverListener, ViewStub.OnInflateListener, AdapterView.OnItemClickListener, AdapterView.OnItemLongClickListener, AdapterView.OnItemSelectedListener, GestureDetector.OnDoubleTapListener, GestureDetector.OnGestureListener, View.OnKeyListener, View.OnLongClickListener, MenuItem.OnMenuItemClickListener, ScaleGestureDetector.OnScaleGestureListener, CompoundButton.OnCheckedChangeListener, RadioGroup.OnCheckedChangeListener, TextToSpeech.OnInitListener, OnSwipeListener.OnSwipeListenerImpl, OnSwipeListener.OnScaleListenerImpl, MediaPlayer.OnCompletionListener
```
A SimpleActivity is meant as a drop-in replacement for Android's Activity class. It provides many convenience methods to make basic Android programming easier for students and new developers. In your activity class, you should write:
```
 public class MyActivity extends SimpleActivity { ... }
 
```

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static interface SimpleActivity.ToastLength

Nested Classes
Modifier and Type	Class and Description
`static interface`	`SimpleActivity.ToastLength`

Field Summary

Fields
Modifier and Type	Field and Description
`protected static int`	`REQ_CODE_PHOTO_GALLERY` Request code for Intent to launch photo gallery.
`protected static int`	`REQ_CODE_REQUEST_PERMISSIONS` Request code for Intent to request app permissions.
`protected static int`	`REQ_CODE_SPEECH_TO_TEXT` Request code for Intent for speech-to-text.
`protected static int`	`REQ_CODE_TAKE_PICTURE` Request code for Intent to take a photo.

Constructor Summary

Constructors
Constructor and Description

SimpleActivity()

Constructors
Constructor and Description
`SimpleActivity()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addFragment(int containerID, Class<? extends Fragment> fragmentClass)` Creates a fragment object from the given class and adds it to this activity in the view container with the given ID.
`void`	`addFragment(int containerID, Fragment fragment)` Adds the given fragment to this activity in the view container with the given ID.
`void`	`allowNetworkingOnMainThread()` Instructs Android to allow your app to perform networking operations on the main thread.
`boolean`	`audioOutExists()` Returns true if the device has an audio output.
`boolean`	`bluetoothExists()` Returns true if the device has Bluetooth capability.
`boolean`	`cameraExists()` Returns true if the device has a camera.
`boolean`	`databaseExists(String name)` Returns true if a database with the given name exists.
`void`	`dial(String phoneNumber)` Launches the system default phone dialer application to make a call to the given telephone number.
`void`	`ensurePermission(String... permissions)` Checks whether the current app has all of the given permissions; if it does not have any, pops up a request for our application to acquire them.
`<T> T`	`find(int id)` An alias for findViewById, but written in such a way that the caller does not need to typecast the returned result.
`Button`	`findButton(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`<T> T`	`findById(int id)` An alias for findViewById, but written in such a way that the caller does not need to typecast the returned result.
`CalendarView`	`findCalendarView(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`CheckBox`	`findCheckBox(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`DatePicker`	`findDatePicker(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`EditText`	`findEditText(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`<T extends Fragment> T`	`findFragment(int id)` Returns a fragment with the given ID found inside this activity.
`<T extends Fragment> T`	`findFragmentById(int id)` Returns a fragment with the given ID found inside this activity.
`GridView`	`findGridView(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`ImageButton`	`findImageButton(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`ImageView`	`findImageView(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`ListView`	`findListView(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`ProgressBar`	`findProgressBar(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`RadioButton`	`findRadioButton(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`RadioGroup`	`findRadioGroup(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`RatingBar`	`findRatingBar(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`ScrollView`	`findScrollView(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`SearchView`	`findSearchView(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`SeekBar`	`findSeekBar(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`Space`	`findSpace(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`Spinner`	`findSpinner(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`StackView`	`findStackView(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`Switch`	`findSwitch(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`TextView`	`findTextView(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`TimePicker`	`findTimePicker(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`ToggleButton`	`findToggleButton(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`Toolbar`	`findToolbar(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`<T extends ViewGroup> T`	`findViewGroup(int id)` Returns a ViewGroup of the given specific type so that casting is not needed as it would be with findViewById.
`ZoomButton`	`findZoomButton(int id)` Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
`void`	`finish(int resultCode, Object... parameters)` Shuts down this activity, returning the given result code and the given 'extra' parameters.
`void`	`finish(Object... parameters)` Shuts down this activity, returning RESULT_OK as its result code and the given 'extra' parameters.
`static int`	`generateViewId()` Generates and returns a unique ID to be programmatically attached to a view.
`List<Integer>`	`getAllDrawableResourceIds()` Returns the IDs of all drawables (images) in this app as a list of integers.
`List<String>`	`getAllDrawableResourceNames()` Returns the names of all drawables (images) in this app as a list of strings.
`List<Integer>`	`getAllRawResourceIds()` Returns the IDs of all raw files in this app as a list of integers.
`List<String>`	`getAllRawResourceNames()` Returns the names of all raw files in this app as a list of strings.
`Bitmap`	`getBitmap(int id)` Returns the bitmap image for the resource file with the given ID.
`Bitmap`	`getBitmap(String url)` Returns the bitmap image for the file located at the given web URL.
`boolean`	`getBooleanExtra(String name)` Returns an 'extra' parameter with the given name from this activity's intent.
`boolean`	`getBooleanExtra(String name, boolean defaultValue)` Returns an 'extra' parameter with the given name from this activity's intent.
`File`	`getDocumentsDirectory()` Returns the directory where documents are stored on this device.
`double`	`getDoubleExtra(String name)` Returns an 'extra' parameter with the given name from this activity's intent.
`double`	`getDoubleExtra(String name, double defaultValue)` Returns an 'extra' parameter with the given name from this activity's intent.
`File`	`getDownloadsDirectory()` Returns the directory where downloads are stored on this device.
`<T> T`	`getExtra(String name)` Returns an 'extra' parameter with the given name from this activity's intent.
`<T> T`	`getExtra(String name, T defaultValue)` Returns an 'extra' parameter with the given name from this activity's intent.
`int`	`getIntExtra(String name)` Returns an 'extra' parameter with the given name from this activity's intent.
`int`	`getIntExtra(String name, int defaultValue)` Returns an 'extra' parameter with the given name from this activity's intent.
`static String`	`getLibraryVersion()` Returns the current version of the library as a string, in format "YYYY/MM/DD HH:MMam".
`Location`	`getLocation()`
`long`	`getLongExtra(String name)` Returns an 'extra' parameter with the given name from this activity's intent.
`long`	`getLongExtra(String name, long defaultValue)` Returns an 'extra' parameter with the given name from this activity's intent.
`File`	`getMoviesDirectory()` Returns the directory where movies are stored on this device.
`File`	`getMusicDirectory()` Returns the directory where music is stored on this device.
`File`	`getPhotosDirectory()` Returns the directory where photos are stored on this device.
`File`	`getPodcastsDirectory()` Returns the directory where podcasts are stored on this device.
`boolean`	`getPreferenceBoolean(String name)` Returns the preference with the given name and value from the app's global preferences.
`boolean`	`getPreferenceBoolean(String name, boolean defaultValue)` Returns the preference with the given name and value from the app's global preferences.
`double`	`getPreferenceDouble(String name)` Returns the preference with the given name and value from the app's global preferences.
`double`	`getPreferenceDouble(String name, double defaultValue)` Returns the preference with the given name and value from the app's global preferences.
`int`	`getPreferenceInt(String name)` Returns the preference with the given name and value from the app's global preferences.
`int`	`getPreferenceInt(String name, int defaultValue)` Returns the preference with the given name and value from the app's global preferences.
`long`	`getPreferenceLong(String name)` Returns the preference with the given name and value from the app's global preferences.
`long`	`getPreferenceLong(String name, long defaultValue)` Returns the preference with the given name and value from the app's global preferences.
`String`	`getPreferenceString(String name)` Returns the preference with the given name and value from the app's global preferences.
`String`	`getPreferenceString(String name, String defaultValue)` Returns the preference with the given name and value from the app's global preferences.
`String`	`getResourceFullName(int id)` Returns the full name of the resource with the given ID, such as R.drawable.foobar = "drawable/foobar".
`int`	`getResourceId(String fullName)` Returns a the ID of the resource with the given full name, such as "R.drawable.foobar" = R.drawable.foobar or "@drawable/foobar" = R.drawable.foobar.
`int`	`getResourceId(String name, String type)` Returns a the ID of the resource with the given name and type, such as "foobar", "drawable" = R.drawable.foobar.
`String`	`getResourceName(int id)` Returns the short name of the resource with the given ID, such as R.drawable.foobar = "foobar".
`String`	`getScreenDensity()` Returns a string representing the current device's screen density, based on the following mapping: up to 120 dpi: "ldpi" 120 - 160 dpi: "mdpi" 160 - 240 dpi: "hdpi" 240 - 320 dpi: "xhdpi" 320 - 480 dpi: "xxhdpi" above 480 dpi: "xxxhdpi"
`int`	`getScreenDpi()` Returns the current device's screen density in dots-per-inch (DPI), rounded down to the nearest integer.
`int`	`getScreenDpiX()` Returns the current device's screen density in the x dimension in dots-per-inch (DPI), rounded down to the nearest integer.
`int`	`getScreenDpiY()` Returns the current device's screen density in the x dimension in dots-per-inch (DPI), rounded down to the nearest integer.
`int`	`getScreenHeight()` Returns the height of the current Android device's screen, in pixels.
`float`	`getScreenHeightInches()` Returns the device's physical screen height in inches, based on its screen resolution in pixels and its density in DPI.
`int`	`getScreenRealHeight()` Returns the 'real' height of the current Android device's screen, in pixels.
`int`	`getScreenRealWidth()` Returns the 'real' width of the current Android device's screen, in pixels.
`float`	`getScreenSizeInches()` Returns the device's physical screen diagonal size in inches, based on its screen resolution in pixels and its density in DPI.
`int`	`getScreenWidth()` Returns the width of the current Android device's screen, in pixels.
`float`	`getScreenWidthInches()` Returns the device's physical screen width in inches, based on its screen resolution in pixels and its density in DPI.
`boolean`	`getSharedPreferenceBoolean(String filename, String name)` Returns the shared preference with the given name and value from the given shared preference filename.
`boolean`	`getSharedPreferenceBoolean(String filename, String name, boolean defaultValue)` Returns the shared preference with the given name and value from the given shared preference filename.
`double`	`getSharedPreferenceDouble(String filename, String name)` Returns the shared preference with the given name and value from the given shared preference filename.
`double`	`getSharedPreferenceDouble(String filename, String name, double defaultValue)` Returns the shared preference with the given name and value from the given shared preference filename.
`int`	`getSharedPreferenceInt(String filename, String name)` Returns the shared preference with the given name and value from the given shared preference filename.
`int`	`getSharedPreferenceInt(String filename, String name, int defaultValue)` Returns the shared preference with the given name and value from the given shared preference filename.
`long`	`getSharedPreferenceLong(String filename, String name)` Returns the shared preference with the given name and value from the given shared preference filename.
`long`	`getSharedPreferenceLong(String filename, String name, long defaultValue)` Returns the shared preference with the given name and value from the given shared preference filename.
`String`	`getSharedPreferenceString(String filename, String name)` Returns the shared preference with the given name and value from the given shared preference filename.
`String`	`getSharedPreferenceString(String filename, String name, String defaultValue)` Returns the shared preference with the given name and value from the given shared preference filename.
`String`	`getStringExtra(String name)` Returns an 'extra' parameter with the given name from this activity's intent.
`String`	`getStringExtra(String name, String defaultValue)` Returns an 'extra' parameter with the given name from this activity's intent.
`void`	`handleEnterKeyPress(View editText)` Attaches a listener so that this activity's onEnterKeyPress method will be called when the Enter key is pressed on the given view.
`boolean`	`hasIntent()` Returns true if this activity was launched with a non-null intent.
`boolean`	`hasPermission(String permission)` Returns true if our application has the given kind of permission, such as Manifest.permission.CAMERA.
`boolean`	`hasPreference(String name)` Returns true if this activity contains a preference with the given name.
`boolean`	`hasSharedPreference(String filename, String name)` Returns true if this activity contains a shared preference with the given name in the given shared preference filename.
`void`	`hideFragment(Fragment fragment)` Hides the given fragment.
`void`	`hideFragment(int fragmentID)` Hides the given fragment.
`<T extends View> T`	`inflateLayout(int id)` A shortcut for getting the layout inflater and asking it to inflate the layout with the given ID, with a null root/parent parameter.
`protected boolean`	`isAutoSaveFields()` Returns true if your activity class has the @AutoSaveFields annotation.
`boolean`	`isLandscape()` Returns true if the device is in landscape orientation.
`boolean`	`isPortrait()` Returns true if the device is in portrait orientation.
`<T> ArrayAdapter<String>`	`listCreateAdapter(int layoutID, int textViewID, T... items)` Creates and returns an ArrayAdapter to store the given items, using the given layout ID and TextView ID.
`<T> ArrayAdapter<T>`	`listCreateAdapter(List<T> list)` Creates and returns an ArrayAdapter to store the given items.
`<T> ArrayAdapter<T>`	`listCreateAdapter(List<T> list, int layoutID, int textViewID)` Creates and returns an ArrayAdapter to store the given items, using the given layout ID and TextView ID.
`<T> ArrayAdapter<String>`	`listCreateAdapter(T... items)` Creates and returns an ArrayAdapter to store the given items.
`ArrayList<String>`	`listGetItems(AdapterView<?> listView)` Returns the text of the items currently in the given list view as an ArrayList.
`void`	`listSetItems(AdapterView<?> listView, ArrayList<String> items)` Sets the items currently in the given list view to those stored in the given ArrayList.
`void`	`listSetItems(AdapterView<?> listView, Object... items)` Sets the items currently in the given list view to those passed.
`void`	`listSetItems(AdapterView<?> listView, String[] items)` Sets the items currently in the given list view to those passed in the given array.
`void`	`log(Object message)` Prints a debug (.d) log message containing the given text.
`void`	`log(String message)` Prints a debug (.d) log message containing the given text.
`void`	`log(String message, Throwable exception)` Prints a WTF (.wtf) log message containing the given text and exception.
`void`	`log(Throwable exception)` Prints a WTF (.wtf) log message containing the given exception.
`void`	`map(double lat, double lng)` Launches the system default mapping application to display a map centered about the given latitude / longitude coordinates at the default zoom level of 14.
`void`	`map(double lat, double lng, int zoom)` Launches the system default mapping application to display a map centered about the given latitude / longitude coordinates at the given zoom level.
`boolean`	`microphoneExists()` Returns true if the device has a microphone.
`boolean`	`mobileConnectionExists()` Returns true if the device currently has a working mobile internet connection, as reported by the system connectivity service.
`boolean`	`networkConnectionExists()` Returns true if the device currently has a working internet connection, as reported by the system connectivity service.
`protected void`	`onActivityResult(int requestCode, int resultCode, Intent intent)` Called when various activities return their results.
`void`	`onAlertDialogClose(AlertDialog dialog)` Empty event listener method to be overridden.
`void`	`onBroadcastReceived(Intent intent)` Override this method to handle broadcasts registered through `registerReceiver(String)`.
`void`	`onCheckedChanged(CompoundButton buttonView, boolean isChecked)` Empty event listener method to be overridden.
`void`	`onCheckedChanged(RadioGroup group, int checkedId)` Empty event listener method to be overridden.
`void`	`onClick(View v)` Empty event listener method to be overridden.
`void`	`onCompletion(MediaPlayer mp)` Called when a MediaPlayer is done playing.
`protected void`	`onCreate(Bundle savedInstanceState)` Activity lifecycle method.
`void`	`onDateInputDialogClose(View view, int year, int month, int day)` Empty event listener method to be overridden.
`protected void`	`onDestroy()` Activity lifecycle method.
`void`	`onDialogCancel(DialogInterface dialog)` Empty event listener method to be overridden.
`void`	`onDialogNegativeClick(DialogInterface dialog)` Empty event listener method to be overridden.
`boolean`	`onDoubleTap(MotionEvent e)` Empty event listener method to be overridden.
`boolean`	`onDoubleTapEvent(MotionEvent e)` Empty event listener method to be overridden.
`boolean`	`onDown(MotionEvent e)` Empty event listener method to be overridden.
`boolean`	`onDrag(View v, DragEvent event)` Empty event listener method to be overridden.
`void`	`onEnterKeyPress(View editText)` Empty event listener method to be overridden.
`boolean`	`onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)` Empty event listener method to be overridden.
`void`	`onFocusChange(View v, boolean hasFocus)` Empty event listener method to be overridden.
`boolean`	`onGenericMotion(View v, MotionEvent event)` Empty event listener method to be overridden.
`boolean`	`onHover(View v, MotionEvent event)` Empty event listener method to be overridden.
`void`	`onInflate(ViewStub stub, View inflated)` Empty event listener method to be overridden.
`void`	`onInit(int status)` Empty event listener method to be overridden.
`void`	`onInputDialogClose(AlertDialog dialog, String input)` Empty event listener method to be overridden.
`void`	`onItemClick(AdapterView<?> parent, View view, int index, long id)` Handles ListView and Spinner clicks and calls the other overload of onItemClick.
`void`	`onItemClick(ListView list, int index)` Empty event listener method to be overridden.
`void`	`onItemClick(Spinner spinner, int index)` Empty event listener method to be overridden.
`boolean`	`onItemLongClick(AdapterView<?> parent, View view, int index, long id)` Handles ListView and Spinner clicks and calls the other overload of onItemLongClick.
`boolean`	`onItemLongClick(ListView list, int index)` Empty event listener method to be overridden.
`boolean`	`onItemLongClick(Spinner spinner, int index)` Empty event listener method to be overridden.
`void`	`onItemSelected(AdapterView<?> parent, View view, int index, long id)` Handles ListView and Spinner clicks and calls the other overload of onItemSelected.
`void`	`onItemSelected(ListView list, int index)` Empty event listener method to be overridden.
`void`	`onItemSelected(Spinner spinner, int index)` Empty event listener method to be overridden.
`boolean`	`onKey(View v, int keyCode, KeyEvent event)` Empty event listener method to be overridden.
`boolean`	`onLongClick(View v)` Empty event listener method to be overridden.
`void`	`onLongPress(MotionEvent e)` Empty event listener method to be overridden.
`boolean`	`onMenuItemClick(MenuItem item)` Empty event listener method to be overridden.
`void`	`onMultiInputDialogClose(AlertDialog dialog, String[] inputs)` Empty event listener method to be overridden.
`boolean`	`onNavigationItemSelected(int itemPosition, long itemId)` Empty event listener method to be overridden.
`void`	`onNothingSelected(AdapterView<?> parent)` Empty event listener method to be overridden.
`protected void`	`onPause()` Activity lifecycle method.
`void`	`onPhotoReady(Bitmap bitmap)` Override this method to indicate what to do when a photo is done being taken or chosen.
`void`	`onProgressDialogClose(ProgressDialog dialog)`
`protected void`	`onRestart()` Activity lifecycle method.
`protected void`	`onRestoreInstanceState(Bundle savedInstanceState)` Called when this activity saves its instance state; if the @AutoSaveFields annotation is present on your activity class, automatically loads the value of your class's fields.
`protected void`	`onResume()` Activity lifecycle method.
`protected void`	`onSaveInstanceState(Bundle outState)` Called when this activity saves its instance state; if the @AutoSaveFields annotation is present on your activity class, automatically saves the value of your class's fields.
`void`	`onScale(float factor)` Empty event listener method to be overridden.
`boolean`	`onScale(ScaleGestureDetector detector)` Empty event listener method to be overridden.
`boolean`	`onScaleBegin(ScaleGestureDetector detector)` Empty event listener method to be overridden.
`void`	`onScaleEnd(ScaleGestureDetector detector)` Empty event listener method to be overridden.
`boolean`	`onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY)` Empty event listener method to be overridden.
`void`	`onShowPress(MotionEvent e)` Empty event listener method to be overridden.
`boolean`	`onSingleTapConfirmed(MotionEvent e)` Empty event listener method to be overridden.
`boolean`	`onSingleTapUp(MotionEvent e)` Empty event listener method to be overridden.
`void`	`onSpeechToTextReady(String spokenText)` Override this method to indicate what to do when a speech-to-text action is done recording the user's voice and translating it to text.
`protected void`	`onStart()` Activity lifecycle method.
`protected void`	`onStop()` Stops the activity, performing some needed cleanup such as shutting down the text-to-speech system if it was in use.
`void`	`onSwipeDown(float distance)` Empty event listener method to be overridden.
`void`	`onSwipeLeft(float distance)` Empty event listener method to be overridden.
`void`	`onSwipeRight(float distance)` Empty event listener method to be overridden.
`void`	`onSwipeUp(float distance)` Empty event listener method to be overridden.
`void`	`onTimeInputDialogClose(View view, int hour, int minute)` Empty event listener method to be overridden.
`boolean`	`onTouch(View v, MotionEvent event)` Empty event listener method to be overridden.
`BufferedReader`	`openExternalFileBufferedReader(String dir, String filename)` Opens and returns a FileInputStream to read the given file in the given external directory.
`FileInputStream`	`openExternalFileInputStream(String dir, String filename)` Opens and returns a Scanner to read the given file in the given external directory.
`PrintStream`	`openExternalFilePrintStream(String dir, String filename)` Opens and returns a PrintStream to write the given file in the given external directory.
`PrintStream`	`openExternalFilePrintStream(String dir, String filename, boolean append)` Opens and returns a PrintStream to write the given file in the given external directory.
`Scanner`	`openExternalFileScanner(String dir, String filename)` Opens and returns a Scanner to read the given file in the given external directory.
`FileInputStream`	`openFileInput(File file)` Opens an external file for reading.
`FileInputStream`	`openFileInput(File directory, String filename)` Opens an external file in the given directory for reading.
`FileInputStream`	`openFileInput(String filename)` Opens an external file for reading.
`FileOutputStream`	`openFileOutput(File file, int mode)` Opens an external file for writing in the given mode, such as MODE_PRIVATE or MODE_APPEND.
`FileOutputStream`	`openFileOutput(File directory, String name, int mode)` Opens an external file in the given directory for writing in the given mode, such as MODE_PRIVATE or MODE_APPEND.
`FileOutputStream`	`openFileOutput(String name, int mode)` Opens an external file for writing in the given mode, such as MODE_PRIVATE or MODE_APPEND.
`BufferedReader`	`openInternalFileBufferedReader(File file)` Opens a BufferedReader for reading from the given file.
`BufferedReader`	`openInternalFileBufferedReader(File directory, String filename)` Opens a BufferedReader for reading from the given file in the given directory.
`BufferedReader`	`openInternalFileBufferedReader(int id)` Opens a BufferedReader to read the file with the given ID.
`BufferedReader`	`openInternalFileBufferedReader(String filename)` Opens a BufferedReader for reading from the given file.
`PrintStream`	`openInternalFilePrintStream(File file)` Opens a PrintStream for writing into the given file, replacing any previous data.
`PrintStream`	`openInternalFilePrintStream(File file, boolean append)` Opens a PrintStream for writing into the given file.
`PrintStream`	`openInternalFilePrintStream(File directory, String filename)` Opens a PrintStream for writing into the given file, replacing any previous data.
`PrintStream`	`openInternalFilePrintStream(File directory, String filename, boolean append)` Opens a PrintStream for writing into the given file.
`PrintStream`	`openInternalFilePrintStream(String filename)` Opens a PrintStream for writing into the given file, replacing any previous data.
`PrintStream`	`openInternalFilePrintStream(String filename, boolean append)` Opens a PrintStream for writing into the given file.
`Scanner`	`openInternalFileScanner(File file)` Opens a Scanner to read the file with the given name.
`Scanner`	`openInternalFileScanner(File directory, String filename)` Opens a Scanner to read the file with the given name.
`Scanner`	`openInternalFileScanner(int id)` Opens a Scanner to read the file with the given ID.
`Scanner`	`openInternalFileScanner(String filename)` Opens a Scanner to read the file with the given name.
`InputStream`	`openInternalFileStream(int id)` Opens an InputStream to read the file with the given ID.
`SQLiteDatabase`	`openOrCreateDatabase(String name)` Opens or creates a database with the given name in MODE_PRIVATE mode.
`void`	`photoGallery()` Launches the device's photo gallery activity.
`void`	`printf(String message, Object... args)` Prints a verbose (.v) log message containing the given formatted string.
`void`	`println(Object message)` Prints a verbose (.v) log message containing the given text.
`void`	`println(String message)` Prints a verbose (.v) log message containing the given text.
`ArrayList<String>`	`readFileLines(File file)` Reads the entire text of the given file, returning it as a list of lines.
`ArrayList<String>`	`readFileLines(File directory, String filename)` Reads the entire text of the given file, returning it as a list of lines.
`ArrayList<String>`	`readFileLines(InputStream stream)` Reads the entire text from the given stream, returning it as a list of lines.
`ArrayList<String>`	`readFileLines(int id)` Reads the entire text of the file with the given ID, returning it as a list of lines.
`ArrayList<String>`	`readFileLines(String filename)` Reads the entire text of the given file, returning it as a list of lines.
`String`	`readFileText(File file)` Reads the entire text of the given file, returning it as a string.
`String`	`readFileText(File directory, String filename)` Reads the entire text of the given file, returning it as a string.
`String`	`readFileText(InputStream stream)` Reads the entire text from the given stream, returning it as a string.
`String`	`readFileText(int id)` Reads the entire text of the file with the given ID, returning it as a string.
`String`	`readFileText(String filename)` Reads the entire text of the given file, returning it as a string.
`void`	`registerReceiver(String... actions)` Registers this activity as a broadcast receiver for the given action(s).
`void`	`removeFragment(Fragment fragment)` Removes the given fragment from this activity.
`void`	`removeFragment(int fragmentID)` Removes the fragment with the given ID from this activity, if it is contained in this activity.
`void`	`replaceFragment(int containerID, Class<? extends Fragment> fragmentClass)` Replaces the fragment in the view container with given ID with a new fragment of the given type.
`void`	`replaceFragment(int containerID, Fragment fragment)` Replaces the fragment in the view container with given ID with the given new fragment.
`void`	`requestPermission(String... permissions)` Pops up a request for our application to acquire the given kind of permission(s), such as Manifest.permission.CAMERA.
`void`	`restoreAllFields(Bundle bundle)` Extracts all fields' values from the given bundle and stores them back into those fields.
`void`	`saveAllFields(Bundle bundle)` Stores all fields' values into the given bundle.
`void`	`setDialogsCancelable(boolean cancelable)` Globally sets whether dialogs created with show_Xxx_Dialog(...) will display a Cancel button.
`void`	`setDialogsIcon(int iconID)` Globally sets whether dialogs created with show_Xxx_Dialog(...) to display the given icon.
`void`	`setDialogsTitle(int titleID)` Globally sets the title that dialogs created with show_Xxx_Dialog(...) should display.
`void`	`setDialogsTitle(String title)` Globally sets the title that dialogs created with show_Xxx_Dialog(...) should display.
`void`	`setFullScreenMode(boolean fullScreen)` Sets whether the app should hide its title bar and show itself in full-screen mode (true) or have a standard app title bar (false).
`void`	`setPreference(String name, boolean value)` Sets a preference with the given name and value into the app's global preferences.
`void`	`setPreference(String name, double value)` Sets a preference with the given name and value into the app's global preferences.
`void`	`setPreference(String name, int value)` Sets a preference with the given name and value into the app's global preferences.
`void`	`setPreference(String name, long value)` Sets a preference with the given name and value into the app's global preferences.
`void`	`setPreference(String name, String value)` Sets a preference with the given name and value into the app's global preferences.
`void`	`setSharedPreference(String filename, String name, boolean value)` Sets a shared preference with the given name and value into the given shared preference filename.
`void`	`setSharedPreference(String filename, String name, double value)` Sets a shared preference with the given name and value into the given shared preference filename.
`void`	`setSharedPreference(String filename, String name, int value)` Sets a shared preference with the given name and value into the given shared preference filename.
`void`	`setSharedPreference(String filename, String name, long value)` Sets a shared preference with the given name and value into the given shared preference filename.
`void`	`setSharedPreference(String filename, String name, String value)` Sets a shared preference with the given name and value into the given shared preference filename.
`void`	`setTraceLifecycle(boolean trace)` Sets whether or not to print a log message every time an activity lifecycle method such as onPause or onStart is called.
`void`	`setWakeLock(boolean wakeLockEnabled)` Sets wake lock to be enabled (true) or disabled (false).
`AlertDialog`	`showAlertDialog(int messageID)` Shows an alert dialog to display a message to the user.
`AlertDialog`	`showAlertDialog(String message)` Shows an alert dialog to display a message to the user.
`AlertDialog`	`showCheckboxInputDialog(boolean[] checkedItems, int itemsID)` Shows a multiple-checkbox dialog to prompt the user to check/uncheck any subset of a group of multiple checkbox input items.
`AlertDialog`	`showCheckboxInputDialog(boolean[] checkedItems, String... items)` Shows a multiple-checkbox dialog to prompt the user to check/uncheck any subset of a group of multiple checkbox input items.
`AlertDialog`	`showCheckboxInputDialog(int itemsID)` Shows a multiple-checkbox dialog to prompt the user to check/uncheck any subset of a group of multiple checkbox input items.
`AlertDialog`	`showCheckboxInputDialog(String... items)` Shows a multiple-checkbox dialog to prompt the user to check/uncheck any subset of a group of multiple checkbox input items.
`AlertDialog`	`showConfirmDialog(int messageID)` Shows an confirm dialog to ask a yes/no question to the user.
`AlertDialog`	`showConfirmDialog(int messageID, int positiveButtonTextID, int negativeButtonTextID)` Shows an confirm dialog to ask a yes/no question to the user.
`AlertDialog`	`showConfirmDialog(String message)` Shows an confirm dialog to ask a yes/no question to the user.
`AlertDialog`	`showConfirmDialog(String message, String positiveButtonText, String negativeButtonText)` Shows an confirm dialog to ask a yes/no question to the user.
`DatePickerDialog`	`showDateInputDialog()` Shows a date picker dialog to prompt the user to select a date.
`DatePickerDialog`	`showDateInputDialog(int startYear, int startMonth, int startDay)` Shows a date picker dialog to prompt the user to select a date.
`DatePickerDialog`	`showDateInputDialog(String message)` Shows a date picker dialog to prompt the user to select a date.
`DatePickerDialog`	`showDateInputDialog(String message, int startYear, int startMonth, int startDay)` Shows a date picker dialog to prompt the user to select a date.
`void`	`showDialogFragment(DialogFragment fragment)` Pops up the given dialog fragment as a dialog on top of this activity.
`void`	`showFragment(Fragment fragment)` Shows the given fragment.
`void`	`showFragment(int fragmentID)` Shows the given fragment.
`AlertDialog`	`showInputDialog(int messageID)` Shows an input dialog to prompt the user for a single text input string.
`AlertDialog`	`showInputDialog(int messageID, int positiveButtonTextID)` Shows an input dialog to prompt the user for a single text input string.
`AlertDialog`	`showInputDialog(String message)` Shows an input dialog to prompt the user for a single text input string.
`AlertDialog`	`showInputDialog(String message, String positiveButtonText)` Shows an input dialog to prompt the user for a single text input string.
`AlertDialog`	`showListInputDialog(int itemsID)` Shows a list input dialog to allow the user to tap one of several choices.
`AlertDialog`	`showListInputDialog(String... items)` Shows a list input dialog to allow the user to tap one of several choices.
`AlertDialog`	`showMultiInputDialog(int promptsID)` Shows a multiple-input dialog to prompt the user for multiple text input strings.
`AlertDialog`	`showMultiInputDialog(int messageID, int promptsID)` Shows a multiple-input dialog to prompt the user for multiple text input strings.
`AlertDialog`	`showMultiInputDialog(String... prompts)` Shows a multiple-input dialog to prompt the user for multiple text input strings.
`AlertDialog`	`showMultiInputDialogWithMessage(String message, String... prompts)` Shows a multiple-input dialog to prompt the user for multiple text input strings.
`SimpleProgressDialog`	`showProgressDialog()` Shows a progress dialog with a progress bar.
`SimpleProgressDialog`	`showProgressDialog(String message)` Shows a progress dialog with a progress bar.
`SimpleProgressDialog`	`showProgressDialog(String message, int max)` Shows a progress dialog with a progress bar.
`AlertDialog`	`showRadioInputDialog(int itemsID)` Shows a radio button dialog to prompt the user to check exactly one of a group of multiple radio button input items.
`AlertDialog`	`showRadioInputDialog(int checkedIndex, int itemsID)` Shows a radio button dialog to prompt the user to check exactly one of a group of multiple radio button input items.
`AlertDialog`	`showRadioInputDialog(int checkedIndex, String... items)` Shows a radio button dialog to prompt the user to check exactly one of a group of multiple radio button input items.
`AlertDialog`	`showRadioInputDialog(String... items)` Shows a radio button dialog to prompt the user to check exactly one of a group of multiple radio button input items.
`TimePickerDialog`	`showTimeInputDialog()` Shows a time picker dialog to prompt the user to select a time of day.
`TimePickerDialog`	`showTimeInputDialog(int startHour, int startMinute)` Shows a time picker dialog to prompt the user to select a time of day.
`TimePickerDialog`	`showTimeInputDialog(String message)` Shows a time picker dialog to prompt the user to select a time of day.
`TimePickerDialog`	`showTimeInputDialog(String message, int startHour, int startMinute)` Shows a time picker dialog to prompt the user to select a time of day.
`int`	`soundGetPosition(int id)` Returns the time position in milliseconds for the media clip with the given ID if it is playing.
`boolean`	`soundIsLooping(int id)` Returns whether the media clip with the given ID is currently playing in 'loop' mode.
`boolean`	`soundIsPlaying(int id)` Returns whether the media clip with the given ID is currently playing or looping.
`void`	`soundLoop(int id)` Plays the media clip with the given ID in 'looping' mode.
`void`	`soundPause(int id)` Pauses the media clip with the given ID if it is playing.
`void`	`soundPlay(int id)` Plays the media clip with the given ID.
`void`	`soundSetPosition(int id, int position)` Sets the time position in milliseconds for the media clip with the given ID.
`void`	`soundStop(int id)` Stops the media clip with the given ID if it was playing.
`void`	`speak(String text)` Says the given text aloud using Text-to-speech.
`void`	`speak(String text, boolean immediately)` Says the given text aloud using Text-to-speech.
`boolean`	`speechToText(String prompt)` Asks the device to start recording speech and converting it to text.
`boolean`	`speechToTextSupported()` Returns true if the current device supports speech-to-text recognition.
`void`	`startActivity(Class<? extends Activity> activityClass, Object... parameters)` Starts the given activity and passes it the given 'extra' parameters.
`void`	`startActivityForResult(Class<? extends Activity> activityClass, int requestCode, Object... parameters)` Starts the given activity with the given request code and passes it the given 'extra' parameters.
`void`	`startService(Class<? extends Service> serviceClass, Object... parameters)` Starts the given service and passes it the given 'extra' parameters.
`void`	`startServiceAction(Class<? extends Service> serviceClass, String action, Object... parameters)` Starts the given service and passes it the given 'extra' parameters.
`boolean`	`takePhoto()` Instructs the device to take a photo without saving it to a file.
`void`	`takePhoto(String filename)` Instructs the device to take a photo and save it to a file.
`void`	`textMessage(String phoneNumber)` Launches the system default text messaging application to send a message to the given telephone number.
`void`	`textMessage(String phoneNumber, String messageBody)` Launches the system default text messaging application to send a message to the given telephone number with the given message body text.
`boolean`	`textToSpeechSupported()` Returns true if the current device supports text-to-speech capability.
`void`	`toast(Object text)` Pops up a short Toast notification to display the given text.
`void`	`toast(Object text, int length)` Pops up a Toast notification of the given time length to display the given text.
`void`	`toast(String text)` Pops up a Toast notification of the given time length to display the given text.
`void`	`toast(String text, int length)` Pops up a Toast notification of the given time length to display the given text.
`boolean`	`wakeLockIsEnabled()` Returns true if the wake lock is currently enabled.
`void`	`webBrowser(String webPageUrl)` Launches the system default web browser to display the web page at the given URL.
`boolean`	`wifiConnectionExists()` Returns true if the device currently has a working wifi connection, as reported by the system connectivity service.
`void`	`writeFileLines(File file, List<String> lines)` Writes the given list of lines into the given file, replacing any previous data.
`void`	`writeFileLines(File file, List<String> lines, boolean append)` Writes the given text into the given file.
`void`	`writeFileLines(File directory, String filename, List<String> lines)` Writes the given list of lines into the given file, replacing any previous data.
`void`	`writeFileLines(File directory, String filename, List<String> lines, boolean append)` Writes the given text into the given file.
`void`	`writeFileLines(String filename, List<String> lines)` Writes the given list of lines into the given file, replacing any previous data.
`void`	`writeFileLines(String filename, List<String> lines, boolean append)` Writes the given text into the given file.
`void`	`writeFileText(File file, String text)` Writes the given text into the given file, replacing any previous data.
`void`	`writeFileText(File file, String text, boolean append)` Writes the given text into the given file.
`void`	`writeFileText(File directory, String filename, String text)` Writes the given text into the given file, replacing any previous data.
`void`	`writeFileText(File directory, String filename, String text, boolean append)` Writes the given text into the given file.
`void`	`writeFileText(String filename, String text)` Writes the given text into the given file, replacing any previous data.
`void`	`writeFileText(String filename, String text, boolean append)` Writes the given text into the given file.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - REQ_CODE_TAKE_PICTURE
```
protected static final int REQ_CODE_TAKE_PICTURE
```
    Request code for Intent to take a photo.
    
    See Also:
    
    Constant Field Values
  - REQ_CODE_SPEECH_TO_TEXT
```
protected static final int REQ_CODE_SPEECH_TO_TEXT
```
    Request code for Intent for speech-to-text.
    
    See Also:
    
    Constant Field Values
  - REQ_CODE_PHOTO_GALLERY
```
protected static final int REQ_CODE_PHOTO_GALLERY
```
    Request code for Intent to launch photo gallery.
    
    See Also:
    
    Constant Field Values
  - REQ_CODE_REQUEST_PERMISSIONS
```
protected static final int REQ_CODE_REQUEST_PERMISSIONS
```
    Request code for Intent to request app permissions.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - SimpleActivity
```
public SimpleActivity()
```
- Method Detail
  - getLibraryVersion
```
public static String getLibraryVersion()
```
    Returns the current version of the library as a string, in format "YYYY/MM/DD HH:MMam".
  - generateViewId
```
public static int generateViewId()
```
    Generates and returns a unique ID to be programmatically attached to a view.
  - listCreateAdapter
```
@SafeVarargs
public final <T> ArrayAdapter<String> listCreateAdapter(T... items)
```
    Creates and returns an ArrayAdapter to store the given items.
  - listCreateAdapter
```
@SafeVarargs
public final <T> ArrayAdapter<String> listCreateAdapter(@LayoutRes
                                                                     int layoutID,
                                                                     @IdRes
                                                                     int textViewID,
                                                                     T... items)
```
    Creates and returns an ArrayAdapter to store the given items, using the given layout ID and TextView ID.
  - listCreateAdapter
```
public <T> ArrayAdapter<T> listCreateAdapter(List<T> list)
```
    Creates and returns an ArrayAdapter to store the given items.
  - listCreateAdapter
```
public <T> ArrayAdapter<T> listCreateAdapter(List<T> list,
                                             @LayoutRes
                                             int layoutID,
                                             @IdRes
                                             int textViewID)
```
    Creates and returns an ArrayAdapter to store the given items, using the given layout ID and TextView ID.
  - listGetItems
```
public ArrayList<String> listGetItems(AdapterView<?> listView)
```
    Returns the text of the items currently in the given list view as an ArrayList.
  - listSetItems
```
public void listSetItems(AdapterView<?> listView,
                         ArrayList<String> items)
```
    Sets the items currently in the given list view to those stored in the given ArrayList.
  - listSetItems
```
public void listSetItems(AdapterView<?> listView,
                         String[] items)
```
    Sets the items currently in the given list view to those passed in the given array.
  - listSetItems
```
public void listSetItems(AdapterView<?> listView,
                         Object... items)
```
    Sets the items currently in the given list view to those passed.
  - find
```
public <T> T find(@IdRes
                  int id)
```
    An alias for findViewById, but written in such a way that the caller does not need to typecast the returned result.
  - findById
```
public <T> T findById(@IdRes
                      int id)
```
    An alias for findViewById, but written in such a way that the caller does not need to typecast the returned result.
  - findButton
```
public Button findButton(@IdRes
                         int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findCalendarView
```
public CalendarView findCalendarView(@IdRes
                                     int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findCheckBox
```
public CheckBox findCheckBox(@IdRes
                             int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findDatePicker
```
public DatePicker findDatePicker(@IdRes
                                 int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findEditText
```
public EditText findEditText(@IdRes
                             int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findGridView
```
public GridView findGridView(@IdRes
                             int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findImageButton
```
public ImageButton findImageButton(@IdRes
                                   int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findImageView
```
public ImageView findImageView(@IdRes
                               int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findListView
```
public ListView findListView(@IdRes
                             int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findProgressBar
```
public ProgressBar findProgressBar(@IdRes
                                   int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findRadioButton
```
public RadioButton findRadioButton(@IdRes
                                   int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findRadioGroup
```
public RadioGroup findRadioGroup(@IdRes
                                 int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findRatingBar
```
public RatingBar findRatingBar(@IdRes
                               int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findScrollView
```
public ScrollView findScrollView(@IdRes
                                 int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findSearchView
```
public SearchView findSearchView(@IdRes
                                 int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findSeekBar
```
public SeekBar findSeekBar(@IdRes
                           int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findSpace
```
public Space findSpace(@IdRes
                       int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findSpinner
```
public Spinner findSpinner(@IdRes
                           int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findStackView
```
public StackView findStackView(@IdRes
                               int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findSwitch
```
public Switch findSwitch(@IdRes
                         int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findTextView
```
public TextView findTextView(@IdRes
                             int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findTimePicker
```
public TimePicker findTimePicker(@IdRes
                                 int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findToggleButton
```
public ToggleButton findToggleButton(@IdRes
                                     int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findToolbar
```
public Toolbar findToolbar(@IdRes
                           int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findViewGroup
```
public <T extends ViewGroup> T findViewGroup(@IdRes
                                             int id)
```
    Returns a ViewGroup of the given specific type so that casting is not needed as it would be with findViewById.
  - findZoomButton
```
public ZoomButton findZoomButton(@IdRes
                                 int id)
```
    Returns a widget of the given specific type so that casting is not needed as it would be with findViewById.
  - findFragment
```
public <T extends Fragment> T findFragment(@IdRes
                                           int id)
```
    Returns a fragment with the given ID found inside this activity.
  - findFragmentById
```
public <T extends Fragment> T findFragmentById(@IdRes
                                               int id)
```
    Returns a fragment with the given ID found inside this activity.
  - addFragment
```
public void addFragment(@IdRes
                        int containerID,
                        Class<? extends Fragment> fragmentClass)
```
    Creates a fragment object from the given class and adds it to this activity in the view container with the given ID.
    
    Throws:
    
    ReflectionRuntimeException - if the fragment cannot be constructed.
  - addFragment
```
public void addFragment(@IdRes
                        int containerID,
                        Fragment fragment)
```
    Adds the given fragment to this activity in the view container with the given ID.
  - removeFragment
```
public void removeFragment(Fragment fragment)
```
    Removes the given fragment from this activity. If the given fragment is not present in this activity, there is no effect.
  - removeFragment
```
public void removeFragment(@IdRes
                           int fragmentID)
```
    Removes the fragment with the given ID from this activity, if it is contained in this activity. If the given ID does not correspond to any fragment in this activity, there is no effect.
  - replaceFragment
```
public void replaceFragment(@IdRes
                            int containerID,
                            Class<? extends Fragment> fragmentClass)
```
    Replaces the fragment in the view container with given ID with a new fragment of the given type.
    
    Throws:
    
    ReflectionRuntimeException - if the fragment cannot be constructed.
  - replaceFragment
```
public void replaceFragment(@IdRes
                            int containerID,
                            Fragment fragment)
```
    Replaces the fragment in the view container with given ID with the given new fragment.
  - hideFragment
```
public void hideFragment(Fragment fragment)
```
    Hides the given fragment.
  - hideFragment
```
public void hideFragment(@IdRes
                         int fragmentID)
```
    Hides the given fragment.
  - showDialogFragment
```
public void showDialogFragment(DialogFragment fragment)
```
    Pops up the given dialog fragment as a dialog on top of this activity.
  - showFragment
```
public void showFragment(Fragment fragment)
```
    Shows the given fragment.
  - showFragment
```
public void showFragment(@IdRes
                         int fragmentID)
```
    Shows the given fragment.
  - getResourceName
```
public String getResourceName(@IdRes
                              int id)
```
    Returns the short name of the resource with the given ID, such as R.drawable.foobar = "foobar".
  - getResourceFullName
```
public String getResourceFullName(@IdRes
                                  int id)
```
    Returns the full name of the resource with the given ID, such as R.drawable.foobar = "drawable/foobar". Full resource names take the form "package:type/entry".
  - getResourceId
```
public int getResourceId(String name,
                         String type)
```
    Returns a the ID of the resource with the given name and type, such as "foobar", "drawable" = R.drawable.foobar.
  - getResourceId
```
public int getResourceId(String fullName)
```
    Returns a the ID of the resource with the given full name, such as "R.drawable.foobar" = R.drawable.foobar or "@drawable/foobar" = R.drawable.foobar.
  - getAllDrawableResourceIds
```
public List<Integer> getAllDrawableResourceIds()
```
    Returns the IDs of all drawables (images) in this app as a list of integers. If there are no such resources, returns an empty list.
  - getAllDrawableResourceNames
```
public List<String> getAllDrawableResourceNames()
```
    Returns the names of all drawables (images) in this app as a list of strings. For example, if you have images in your res/drawable folder named abc.jpg and defg.png, this method will return the list ["abc", "defg"]. If there are no such resources, returns an empty list.
  - getAllRawResourceIds
```
public List<Integer> getAllRawResourceIds()
```
    Returns the IDs of all raw files in this app as a list of integers. If there are no such resources, returns an empty list.
  - getAllRawResourceNames
```
public List<String> getAllRawResourceNames()
```
    Returns the names of all raw files in this app as a list of strings. For example, if you have images in your res/raw folder named abcd.txt and efg.mp3, this method will return the list ["abcd", "efg"]. If there are no such resources, returns an empty list.
  - getBitmap
```
public Bitmap getBitmap(@DrawableRes
                        int id)
```
    Returns the bitmap image for the resource file with the given ID.
  - getBitmap
```
public Bitmap getBitmap(String url)
```
    Returns the bitmap image for the file located at the given web URL.
    
    Throws:
    
    IORuntimeException - if the URL cannot be read or is not a valid image.
  - handleEnterKeyPress
```
public void handleEnterKeyPress(View editText)
```
    Attaches a listener so that this activity's onEnterKeyPress method will be called when the Enter key is pressed on the given view. Now also supports keyboard cursor movement with arrow keys and Home/End for physical keyboards.
  - onEnterKeyPress
```
public void onEnterKeyPress(View editText)
```
    Empty event listener method to be overridden.
  - onSwipeLeft
```
public void onSwipeLeft(float distance)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onSwipeLeft in interface OnSwipeListener.OnSwipeListenerImpl
  - onSwipeRight
```
public void onSwipeRight(float distance)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onSwipeRight in interface OnSwipeListener.OnSwipeListenerImpl
  - onSwipeUp
```
public void onSwipeUp(float distance)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onSwipeUp in interface OnSwipeListener.OnSwipeListenerImpl
  - onSwipeDown
```
public void onSwipeDown(float distance)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onSwipeDown in interface OnSwipeListener.OnSwipeListenerImpl
  - onScale
```
public void onScale(float factor)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onScale in interface OnSwipeListener.OnScaleListenerImpl
  - onClick
```
public void onClick(View v)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onClick in interface View.OnClickListener
  - onLongClick
```
public boolean onLongClick(View v)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onLongClick in interface View.OnLongClickListener
  - onItemClick
```
public void onItemClick(AdapterView<?> parent,
                        View view,
                        int index,
                        long id)
```
    Handles ListView and Spinner clicks and calls the other overload of onItemClick.
    
    Specified by:
    
    onItemClick in interface AdapterView.OnItemClickListener
  - onItemClick
```
public void onItemClick(ListView list,
                        int index)
```
    Empty event listener method to be overridden.
  - onItemClick
```
public void onItemClick(Spinner spinner,
                        int index)
```
    Empty event listener method to be overridden.
  - onItemLongClick
```
public boolean onItemLongClick(AdapterView<?> parent,
                               View view,
                               int index,
                               long id)
```
    Handles ListView and Spinner clicks and calls the other overload of onItemLongClick.
    
    Specified by:
    
    onItemLongClick in interface AdapterView.OnItemLongClickListener
  - onItemLongClick
```
public boolean onItemLongClick(ListView list,
                               int index)
```
    Empty event listener method to be overridden.
  - onItemLongClick
```
public boolean onItemLongClick(Spinner spinner,
                               int index)
```
    Empty event listener method to be overridden.
  - onTouch
```
public boolean onTouch(View v,
                       MotionEvent event)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onTouch in interface View.OnTouchListener
  - onSingleTapConfirmed
```
public boolean onSingleTapConfirmed(MotionEvent e)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onSingleTapConfirmed in interface GestureDetector.OnDoubleTapListener
  - onDoubleTap
```
public boolean onDoubleTap(MotionEvent e)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onDoubleTap in interface GestureDetector.OnDoubleTapListener
  - onDoubleTapEvent
```
public boolean onDoubleTapEvent(MotionEvent e)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onDoubleTapEvent in interface GestureDetector.OnDoubleTapListener
  - onDrag
```
public boolean onDrag(View v,
                      DragEvent event)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onDrag in interface View.OnDragListener
  - onFocusChange
```
public void onFocusChange(View v,
                          boolean hasFocus)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onFocusChange in interface View.OnFocusChangeListener
  - onGenericMotion
```
public boolean onGenericMotion(View v,
                               MotionEvent event)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onGenericMotion in interface View.OnGenericMotionListener
  - onDown
```
public boolean onDown(MotionEvent e)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onDown in interface GestureDetector.OnGestureListener
  - onShowPress
```
public void onShowPress(MotionEvent e)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onShowPress in interface GestureDetector.OnGestureListener
  - onSingleTapUp
```
public boolean onSingleTapUp(MotionEvent e)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onSingleTapUp in interface GestureDetector.OnGestureListener
  - onScroll
```
public boolean onScroll(MotionEvent e1,
                        MotionEvent e2,
                        float distanceX,
                        float distanceY)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onScroll in interface GestureDetector.OnGestureListener
  - onLongPress
```
public void onLongPress(MotionEvent e)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onLongPress in interface GestureDetector.OnGestureListener
  - onFling
```
public boolean onFling(MotionEvent e1,
                       MotionEvent e2,
                       float velocityX,
                       float velocityY)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onFling in interface GestureDetector.OnGestureListener
  - onHover
```
public boolean onHover(View v,
                       MotionEvent event)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onHover in interface View.OnHoverListener
  - onInflate
```
public void onInflate(ViewStub stub,
                      View inflated)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onInflate in interface ViewStub.OnInflateListener
  - onKey
```
public boolean onKey(View v,
                     int keyCode,
                     KeyEvent event)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onKey in interface View.OnKeyListener
  - onMenuItemClick
```
public boolean onMenuItemClick(MenuItem item)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onMenuItemClick in interface MenuItem.OnMenuItemClickListener
  - onNavigationItemSelected
```
public boolean onNavigationItemSelected(int itemPosition,
                                        long itemId)
```
    Empty event listener method to be overridden.
  - onScale
```
public boolean onScale(ScaleGestureDetector detector)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onScale in interface ScaleGestureDetector.OnScaleGestureListener
  - onScaleBegin
```
public boolean onScaleBegin(ScaleGestureDetector detector)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onScaleBegin in interface ScaleGestureDetector.OnScaleGestureListener
  - onScaleEnd
```
public void onScaleEnd(ScaleGestureDetector detector)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onScaleEnd in interface ScaleGestureDetector.OnScaleGestureListener
  - onCheckedChanged
```
public void onCheckedChanged(CompoundButton buttonView,
                             boolean isChecked)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onCheckedChanged in interface CompoundButton.OnCheckedChangeListener
  - onCheckedChanged
```
public void onCheckedChanged(RadioGroup group,
                             int checkedId)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onCheckedChanged in interface RadioGroup.OnCheckedChangeListener
  - onItemSelected
```
public void onItemSelected(AdapterView<?> parent,
                           View view,
                           int index,
                           long id)
```
    Handles ListView and Spinner clicks and calls the other overload of onItemSelected.
    
    Specified by:
    
    onItemSelected in interface AdapterView.OnItemSelectedListener
  - onItemSelected
```
public void onItemSelected(ListView list,
                           int index)
```
    Empty event listener method to be overridden.
  - onItemSelected
```
public void onItemSelected(Spinner spinner,
                           int index)
```
    Empty event listener method to be overridden.
  - onNothingSelected
```
public void onNothingSelected(AdapterView<?> parent)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onNothingSelected in interface AdapterView.OnItemSelectedListener
  - onInit
```
public void onInit(int status)
```
    Empty event listener method to be overridden.
    
    Specified by:
    
    onInit in interface TextToSpeech.OnInitListener
  - onCompletion
```
public void onCompletion(MediaPlayer mp)
```
    Called when a MediaPlayer is done playing. Do not override.
    
    Specified by:
    
    onCompletion in interface MediaPlayer.OnCompletionListener
  - onActivityResult
```
protected void onActivityResult(int requestCode,
                                int resultCode,
                                Intent intent)
```
    Called when various activities return their results. Subclasses of SimpleActivity that override this method should make sure to call super.onActivityResult(...); to make sure this functionality is not lost.
  - getDocumentsDirectory
```
public File getDocumentsDirectory()
```
    Returns the directory where documents are stored on this device.
  - getDownloadsDirectory
```
public File getDownloadsDirectory()
```
    Returns the directory where downloads are stored on this device.
  - getMoviesDirectory
```
public File getMoviesDirectory()
```
    Returns the directory where movies are stored on this device.
  - getMusicDirectory
```
public File getMusicDirectory()
```
    Returns the directory where music is stored on this device.
  - getPhotosDirectory
```
public File getPhotosDirectory()
```
    Returns the directory where photos are stored on this device.
  - getPodcastsDirectory
```
public File getPodcastsDirectory()
```
    Returns the directory where podcasts are stored on this device.
  - openExternalFileBufferedReader
```
public BufferedReader openExternalFileBufferedReader(String dir,
                                                     String filename)
```
    Opens and returns a FileInputStream to read the given file in the given external directory.
    
    Throws:
    
    IORuntimeException - if the file does not exist or cannot be read.
  - openExternalFileScanner
```
public Scanner openExternalFileScanner(String dir,
                                       String filename)
```
    Opens and returns a Scanner to read the given file in the given external directory.
    
    Throws:
    
    IORuntimeException - if the file does not exist or cannot be read.
  - openExternalFilePrintStream
```
public PrintStream openExternalFilePrintStream(String dir,
                                               String filename)
```
    Opens and returns a PrintStream to write the given file in the given external directory. If the file already exists, its contents will be overwritten.
    
    Throws:
    
    IORuntimeException - if the file cannot be written.
  - openExternalFilePrintStream
```
public PrintStream openExternalFilePrintStream(String dir,
                                               String filename,
                                               boolean append)
```
    Opens and returns a PrintStream to write the given file in the given external directory. The append parameter dictates whether existing file contents will be overwritten or appended to.
    
    Throws:
    
    IORuntimeException - if the file cannot be written.
  - openExternalFileInputStream
```
public FileInputStream openExternalFileInputStream(String dir,
                                                   String filename)
```
    Opens and returns a Scanner to read the given file in the given external directory.
    
    Throws:
    
    IORuntimeException - if the file cannot be written.
  - openFileInput
```
public FileInputStream openFileInput(File file)
```
    Opens an external file for reading.
    
    Throws:
    
    IORuntimeException - if the file does not exist or cannot be read.
  - openFileInput
```
public FileInputStream openFileInput(File directory,
                                     String filename)
```
    Opens an external file in the given directory for reading.
    
    Throws:
    
    IORuntimeException - if the file does not exist or cannot be read.
  - openFileInput
```
public FileInputStream openFileInput(String filename)
```
    Opens an external file for reading.
    
    Throws:
    
    IORuntimeException - if the file does not exist or cannot be read.
  - openFileOutput
```
public FileOutputStream openFileOutput(File file,
                                       int mode)
```
    Opens an external file for writing in the given mode, such as MODE_PRIVATE or MODE_APPEND.
    
    Throws:
    
    IORuntimeException - if the file does not exist or cannot be written.
  - openFileOutput
```
public FileOutputStream openFileOutput(File directory,
                                       String name,
                                       int mode)
```
    Opens an external file in the given directory for writing in the given mode, such as MODE_PRIVATE or MODE_APPEND.
    
    Throws:
    
    IORuntimeException - if the file does not exist or cannot be written.
  - openFileOutput
```
public FileOutputStream openFileOutput(String name,
                                       int mode)
```
    Opens an external file for writing in the given mode, such as MODE_PRIVATE or MODE_APPEND.
    
    Throws:
    
    IORuntimeException - if the file does not exist or cannot be written.
  - openInternalFileBufferedReader
```
public BufferedReader openInternalFileBufferedReader(File file)
```
    Opens a BufferedReader for reading from the given file. If the file cannot be read, throws an IORuntimeException.
  - openInternalFileBufferedReader
```
public BufferedReader openInternalFileBufferedReader(File directory,
                                                     String filename)
```
    Opens a BufferedReader for reading from the given file in the given directory. If the file cannot be read, throws an IORuntimeException.
  - openInternalFileBufferedReader
```
public BufferedReader openInternalFileBufferedReader(String filename)
```
    Opens a BufferedReader for reading from the given file. If the file cannot be read, throws an IORuntimeException.
  - openInternalFilePrintStream
```
public PrintStream openInternalFilePrintStream(File file)
```
    Opens a PrintStream for writing into the given file, replacing any previous data. If the file cannot be written, throws an IORuntimeException.
  - openInternalFilePrintStream
```
public PrintStream openInternalFilePrintStream(File directory,
                                               String filename)
```
    Opens a PrintStream for writing into the given file, replacing any previous data. If the file cannot be written, throws an IORuntimeException.
  - openInternalFilePrintStream
```
public PrintStream openInternalFilePrintStream(String filename)
```
    Opens a PrintStream for writing into the given file, replacing any previous data. If the file cannot be written, throws an IORuntimeException.
  - openInternalFilePrintStream
```
public PrintStream openInternalFilePrintStream(File file,
                                               boolean append)
```
    Opens a PrintStream for writing into the given file. If 'append' is true, appends the new text after any existing data; if false, replaces any previous data. If the file cannot be written, throws an IORuntimeException.
  - openInternalFilePrintStream
```
public PrintStream openInternalFilePrintStream(File directory,
                                               String filename,
                                               boolean append)
```
    Opens a PrintStream for writing into the given file. If 'append' is true, appends the new text after any existing data; if false, replaces any previous data. If the file cannot be written, throws an IORuntimeException.
  - openInternalFilePrintStream
```
public PrintStream openInternalFilePrintStream(String filename,
                                               boolean append)
```
    Opens a PrintStream for writing into the given file. If 'append' is true, appends the new text after any existing data; if false, replaces any previous data. If the file cannot be written, throws an IORuntimeException.
  - openInternalFileScanner
```
public Scanner openInternalFileScanner(File file)
```
    Opens a Scanner to read the file with the given name. If the file cannot be read, throws an IORuntimeException.
  - openInternalFileScanner
```
public Scanner openInternalFileScanner(File directory,
                                       String filename)
```
    Opens a Scanner to read the file with the given name. If the file cannot be read, throws an IORuntimeException.
  - openInternalFileScanner
```
public Scanner openInternalFileScanner(String filename)
```
    Opens a Scanner to read the file with the given name. If the file cannot be read, throws an IORuntimeException.
  - openInternalFileBufferedReader
```
public BufferedReader openInternalFileBufferedReader(@RawRes
                                                     int id)
```
    Opens a BufferedReader to read the file with the given ID.
  - openInternalFileScanner
```
public Scanner openInternalFileScanner(@RawRes
                                       int id)
```
    Opens a Scanner to read the file with the given ID.
  - openInternalFileStream
```
public InputStream openInternalFileStream(@RawRes
                                          int id)
```
    Opens an InputStream to read the file with the given ID.
  - readFileLines
```
public ArrayList<String> readFileLines(@RawRes
                                       int id)
```
    Reads the entire text of the file with the given ID, returning it as a list of lines. Any end-of-line \n characters have been stripped from the ends of the lines.
  - readFileLines
```
public ArrayList<String> readFileLines(File file)
```
    Reads the entire text of the given file, returning it as a list of lines. Any end-of-line \n characters have been stripped from the ends of the lines.
    
    Throws:
    
    IORuntimeException - if the file cannot be read.
  - readFileLines
```
public ArrayList<String> readFileLines(File directory,
                                       String filename)
```
    Reads the entire text of the given file, returning it as a list of lines. Any end-of-line \n characters have been stripped from the ends of the lines.
    
    Throws:
    
    IORuntimeException - if the file cannot be read.
  - readFileLines
```
public ArrayList<String> readFileLines(InputStream stream)
```
    Reads the entire text from the given stream, returning it as a list of lines. Any end-of-line \n characters have been stripped from the ends of the lines.
    
    Throws:
    
    IORuntimeException - if the file cannot be read.
  - readFileLines
```
public ArrayList<String> readFileLines(String filename)
```
    Reads the entire text of the given file, returning it as a list of lines. Any end-of-line \n characters have been stripped from the ends of the lines.
    
    Throws:
    
    IORuntimeException - if the file cannot be read.
  - readFileText
```
public String readFileText(@RawRes
                           int id)
```
    Reads the entire text of the file with the given ID, returning it as a string.
  - readFileText
```
public String readFileText(File file)
```
    Reads the entire text of the given file, returning it as a string.
    
    Throws:
    
    IORuntimeException - if the file cannot be read.
  - readFileText
```
public String readFileText(InputStream stream)
```
    Reads the entire text from the given stream, returning it as a string.
    
    Throws:
    
    IORuntimeException - if the file cannot be read.
  - readFileText
```
public String readFileText(File directory,
                           String filename)
```
    Reads the entire text of the given file, returning it as a string.
    
    Throws:
    
    IORuntimeException - if the file cannot be read.
  - readFileText
```
public String readFileText(String filename)
```
    Reads the entire text of the given file, returning it as a string.
    
    Throws:
    
    IORuntimeException - if the file cannot be read.
  - writeFileLines
```
public void writeFileLines(File file,
                           List<String> lines)
```
    Writes the given list of lines into the given file, replacing any previous data. Each line is suffixed by \n. If the file cannot be written, throws an IORuntimeException.
  - writeFileLines
```
public void writeFileLines(File directory,
                           String filename,
                           List<String> lines)
```
    Writes the given list of lines into the given file, replacing any previous data. Each line is suffixed by \n. If the file cannot be written, throws an IORuntimeException.
  - writeFileLines
```
public void writeFileLines(String filename,
                           List<String> lines)
```
    Writes the given list of lines into the given file, replacing any previous data. Each line is suffixed by \n. If the file cannot be written, throws an IORuntimeException.
  - writeFileLines
```
public void writeFileLines(File file,
                           List<String> lines,
                           boolean append)
```
    Writes the given text into the given file. Each line is suffixed by \n. If 'append' is true, appends the new text after any existing data; if false, replaces any previous data. If the file cannot be written, throws an IORuntimeException.
  - writeFileLines
```
public void writeFileLines(File directory,
                           String filename,
                           List<String> lines,
                           boolean append)
```
    Writes the given text into the given file. Each line is suffixed by \n. If 'append' is true, appends the new text after any existing data; if false, replaces any previous data. If the file cannot be written, throws an IORuntimeException.
  - writeFileLines
```
public void writeFileLines(String filename,
                           List<String> lines,
                           boolean append)
```
    Writes the given text into the given file. Each line is suffixed by \n. If 'append' is true, appends the new text after any existing data; if false, replaces any previous data. If the file cannot be written, throws an IORuntimeException.
  - writeFileText
```
public void writeFileText(File file,
                          String text)
```
    Writes the given text into the given file, replacing any previous data. If the file cannot be written, throws an IORuntimeException.
  - writeFileText
```
public void writeFileText(File directory,
                          String filename,
                          String text)
```
    Writes the given text into the given file, replacing any previous data. If the file cannot be written, throws an IORuntimeException.
  - writeFileText
```
public void writeFileText(String filename,
                          String text)
```
    Writes the given text into the given file, replacing any previous data. If the file cannot be written, throws an IORuntimeException.
  - writeFileText
```
public void writeFileText(File file,
                          String text,
                          boolean append)
```
    Writes the given text into the given file. If 'append' is true, appends the new text after any existing data; if false, replaces any previous data. If the file cannot be written, throws an IORuntimeException.
  - writeFileText
```
public void writeFileText(File directory,
                          String filename,
                          String text,
                          boolean append)
```
    Writes the given text into the given file. If 'append' is true, appends the new text after any existing data; if false, replaces any previous data. If the file cannot be written, throws an IORuntimeException.
  - writeFileText
```
public void writeFileText(String filename,
                          String text,
                          boolean append)
```
    Writes the given text into the given file. If 'append' is true, appends the new text after any existing data; if false, replaces any previous data. If the file cannot be written, throws an IORuntimeException.
  - hasIntent
```
public boolean hasIntent()
```
    Returns true if this activity was launched with a non-null intent.
  - getBooleanExtra
```
public boolean getBooleanExtra(String name)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns false.
  - getBooleanExtra
```
public boolean getBooleanExtra(String name,
                               boolean defaultValue)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns the given default value.
  - getDoubleExtra
```
public double getDoubleExtra(String name)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns 0.0.
  - getDoubleExtra
```
public double getDoubleExtra(String name,
                             double defaultValue)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns the given default value.
  - getIntExtra
```
public int getIntExtra(String name)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns 0.
  - getIntExtra
```
public int getIntExtra(String name,
                       int defaultValue)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns the given default value.
  - getLongExtra
```
public long getLongExtra(String name)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns 0.
  - getLongExtra
```
public long getLongExtra(String name,
                         long defaultValue)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns the given default value.
  - getStringExtra
```
public String getStringExtra(String name)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns an empty string.
  - getStringExtra
```
public String getStringExtra(String name,
                             String defaultValue)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns the given default value.
  - getExtra
```
public <T> T getExtra(String name)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns null.
  - getExtra
```
public <T> T getExtra(String name,
                      T defaultValue)
```
    Returns an 'extra' parameter with the given name from this activity's intent. If there is no such 'extra' parameter, returns the given default value.
  - getPreferenceBoolean
```
public boolean getPreferenceBoolean(String name)
```
    Returns the preference with the given name and value from the app's global preferences. If there is no such shared preference, returns false.
  - getPreferenceBoolean
```
public boolean getPreferenceBoolean(String name,
                                    boolean defaultValue)
```
    Returns the preference with the given name and value from the app's global preferences. If there is no such shared preference, returns the given default value.
  - getPreferenceDouble
```
public double getPreferenceDouble(String name)
```
    Returns the preference with the given name and value from the app's global preferences. If there is no such shared preference, returns 0.0.
  - getPreferenceDouble
```
public double getPreferenceDouble(String name,
                                  double defaultValue)
```
    Returns the preference with the given name and value from the app's global preferences. If there is no such shared preference, returns the given default value.
  - getPreferenceInt
```
public int getPreferenceInt(String name)
```
    Returns the preference with the given name and value from the app's global preferences. If there is no such shared preference, returns 0.
  - getPreferenceInt
```
public int getPreferenceInt(String name,
                            int defaultValue)
```
    Returns the preference with the given name and value from the app's global preferences. If there is no such shared preference, returns the given default value.
  - getPreferenceLong
```
public long getPreferenceLong(String name)
```
    Returns the preference with the given name and value from the app's global preferences. If there is no such shared preference, returns 0.
  - getPreferenceLong
```
public long getPreferenceLong(String name,
                              long defaultValue)
```
    Returns the preference with the given name and value from the app's global preferences. If there is no such shared preference, returns the given default value.
  - getPreferenceString
```
public String getPreferenceString(String name)
```
    Returns the preference with the given name and value from the app's global preferences. If there is no such shared preference, returns an empty string.
  - getPreferenceString
```
public String getPreferenceString(String name,
                                  String defaultValue)
```
    Returns the preference with the given name and value from the app's global preferences. If there is no such shared preference, returns the given default value.
  - hasPreference
```
public boolean hasPreference(String name)
```
    Returns true if this activity contains a preference with the given name.
  - setPreference
```
public void setPreference(String name,
                          boolean value)
```
    Sets a preference with the given name and value into the app's global preferences.
  - setPreference
```
public void setPreference(String name,
                          double value)
```
    Sets a preference with the given name and value into the app's global preferences.
  - setPreference
```
public void setPreference(String name,
                          int value)
```
    Sets a preference with the given name and value into the app's global preferences.
  - setPreference
```
public void setPreference(String name,
                          long value)
```
    Sets a preference with the given name and value into the app's global preferences.
  - setPreference
```
public void setPreference(String name,
                          String value)
```
    Sets a preference with the given name and value into the app's global preferences.
  - getSharedPreferenceBoolean
```
public boolean getSharedPreferenceBoolean(String filename,
                                          String name)
```
    Returns the shared preference with the given name and value from the given shared preference filename. If there is no such shared preference, returns false.
  - getSharedPreferenceBoolean
```
public boolean getSharedPreferenceBoolean(String filename,
                                          String name,
                                          boolean defaultValue)
```
    Returns the shared preference with the given name and value from the given shared preference filename. If there is no such shared preference, returns the given default value.
  - getSharedPreferenceDouble
```
public double getSharedPreferenceDouble(String filename,
                                        String name)
```
    Returns the shared preference with the given name and value from the given shared preference filename. If there is no such shared preference, returns 0.0.
  - getSharedPreferenceDouble
```
public double getSharedPreferenceDouble(String filename,
                                        String name,
                                        double defaultValue)
```
    Returns the shared preference with the given name and value from the given shared preference filename. If there is no such shared preference, returns the given default value.
  - getSharedPreferenceInt
```
public int getSharedPreferenceInt(String filename,
                                  String name)
```
    Returns the shared preference with the given name and value from the given shared preference filename. If there is no such shared preference, returns 0.
  - getSharedPreferenceInt
```
public int getSharedPreferenceInt(String filename,
                                  String name,
                                  int defaultValue)
```
    Returns the shared preference with the given name and value from the given shared preference filename. If there is no such shared preference, returns the given default value.
  - getSharedPreferenceLong
```
public long getSharedPreferenceLong(String filename,
                                    String name)
```
    Returns the shared preference with the given name and value from the given shared preference filename. If there is no such shared preference, returns 0.
  - getSharedPreferenceLong
```
public long getSharedPreferenceLong(String filename,
                                    String name,
                                    long defaultValue)
```
    Returns the shared preference with the given name and value from the given shared preference filename. If there is no such shared preference, returns the given default value.
  - getSharedPreferenceString
```
public String getSharedPreferenceString(String filename,
                                        String name)
```
    Returns the shared preference with the given name and value from the given shared preference filename. If there is no such shared preference, returns an empty string.
  - getSharedPreferenceString
```
public String getSharedPreferenceString(String filename,
                                        String name,
                                        String defaultValue)
```
    Returns the shared preference with the given name and value from the given shared preference filename. If there is no such shared preference, returns the given default value.
  - hasSharedPreference
```
public boolean hasSharedPreference(String filename,
                                   String name)
```
    Returns true if this activity contains a shared preference with the given name in the given shared preference filename.
  - setSharedPreference
```
public void setSharedPreference(String filename,
                                String name,
                                boolean value)
```
    Sets a shared preference with the given name and value into the given shared preference filename.
  - setSharedPreference
```
public void setSharedPreference(String filename,
                                String name,
                                double value)
```
    Sets a shared preference with the given name and value into the given shared preference filename.
  - setSharedPreference
```
public void setSharedPreference(String filename,
                                String name,
                                int value)
```
    Sets a shared preference with the given name and value into the given shared preference filename.
  - setSharedPreference
```
public void setSharedPreference(String filename,
                                String name,
                                long value)
```
    Sets a shared preference with the given name and value into the given shared preference filename.
  - setSharedPreference
```
public void setSharedPreference(String filename,
                                String name,
                                String value)
```
    Sets a shared preference with the given name and value into the given shared preference filename.
  - saveAllFields
```
public void saveAllFields(Bundle bundle)
```
    Stores all fields' values into the given bundle.
  - restoreAllFields
```
public void restoreAllFields(Bundle bundle)
```
    Extracts all fields' values from the given bundle and stores them back into those fields.
  - onCreate
```
protected void onCreate(Bundle savedInstanceState)
```
    Activity lifecycle method.
  - onDestroy
```
protected void onDestroy()
```
    Activity lifecycle method.
  - onPause
```
protected void onPause()
```
    Activity lifecycle method.
  - onRestart
```
protected void onRestart()
```
    Activity lifecycle method.
  - onRestoreInstanceState
```
protected void onRestoreInstanceState(Bundle savedInstanceState)
```
    Called when this activity saves its instance state; if the @AutoSaveFields annotation is present on your activity class, automatically loads the value of your class's fields.
  - onResume
```
protected void onResume()
```
    Activity lifecycle method.
  - onSaveInstanceState
```
protected void onSaveInstanceState(Bundle outState)
```
    Called when this activity saves its instance state; if the @AutoSaveFields annotation is present on your activity class, automatically saves the value of your class's fields.
  - onStart
```
protected void onStart()
```
    Activity lifecycle method.
  - onStop
```
protected void onStop()
```
    Stops the activity, performing some needed cleanup such as shutting down the text-to-speech system if it was in use.
  - setTraceLifecycle
```
public void setTraceLifecycle(boolean trace)
```
    Sets whether or not to print a log message every time an activity lifecycle method such as onPause or onStart is called.
  - isAutoSaveFields
```
protected boolean isAutoSaveFields()
```
    Returns true if your activity class has the @AutoSaveFields annotation.
  - isLandscape
```
public boolean isLandscape()
```
    Returns true if the device is in landscape orientation.
  - isPortrait
```
public boolean isPortrait()
```
    Returns true if the device is in portrait orientation.
  - finish
```
public void finish(Object... parameters)
```
    Shuts down this activity, returning RESULT_OK as its result code and the given 'extra' parameters.
  - finish
```
public void finish(int resultCode,
                   Object... parameters)
```
    Shuts down this activity, returning the given result code and the given 'extra' parameters.
  - startActivity
```
public void startActivity(Class<? extends Activity> activityClass,
                          Object... parameters)
```
    Starts the given activity and passes it the given 'extra' parameters.
  - startActivityForResult
```
public void startActivityForResult(Class<? extends Activity> activityClass,
                                   int requestCode,
                                   Object... parameters)
```
    Starts the given activity with the given request code and passes it the given 'extra' parameters.
  - startService
```
public void startService(Class<? extends Service> serviceClass,
                         Object... parameters)
```
    Starts the given service and passes it the given 'extra' parameters.
  - startServiceAction
```
public void startServiceAction(Class<? extends Service> serviceClass,
                               String action,
                               Object... parameters)
```
    Starts the given service and passes it the given 'extra' parameters.
  - registerReceiver
```
public void registerReceiver(String... actions)
```
    Registers this activity as a broadcast receiver for the given action(s). If a service makes a broadcast with the given action, this activity's onBroadcastReceived method will be called. You should override onBroadcastReceived to handle the broadcast.
  - onBroadcastReceived
```
public void onBroadcastReceived(Intent intent)
```
    Override this method to handle broadcasts registered through registerReceiver(String). If you register this activity as a broadcast receiver, this activity's onBroadcastReceived method will be called.
  - soundIsLooping
```
public boolean soundIsLooping(@RawRes
                              int id)
```
    Returns whether the media clip with the given ID is currently playing in 'loop' mode.
  - soundIsPlaying
```
public boolean soundIsPlaying(@RawRes
                              int id)
```
    Returns whether the media clip with the given ID is currently playing or looping.
  - soundLoop
```
public void soundLoop(@RawRes
                      int id)
```
    Plays the media clip with the given ID in 'looping' mode.
  - soundPlay
```
public void soundPlay(@RawRes
                      int id)
```
    Plays the media clip with the given ID.
  - soundPause
```
public void soundPause(@RawRes
                       int id)
```
    Pauses the media clip with the given ID if it is playing.
  - soundGetPosition
```
public int soundGetPosition(@RawRes
                            int id)
```
    Returns the time position in milliseconds for the media clip with the given ID if it is playing.
  - soundSetPosition
```
public void soundSetPosition(@RawRes
                             int id,
                             int position)
```
    Sets the time position in milliseconds for the media clip with the given ID. If the clip was not playing, it starts playing.
  - soundStop
```
public void soundStop(@RawRes
                      int id)
```
    Stops the media clip with the given ID if it was playing.
  - speak
```
public void speak(String text)
```
    Says the given text aloud using Text-to-speech. If any other speech is occurring, it is halted and this new speech begins immediately.
  - speak
```
public void speak(String text,
                  boolean immediately)
```
    Says the given text aloud using Text-to-speech. If the 'immediately' boolean parameter is true, and if any other speech is occurring, it is halted and this new speech begins immediately. If the 'immediately' parameter is false, this text is spoken after any other text previously sent to speak() is done being spoken.
  - textToSpeechSupported
```
public boolean textToSpeechSupported()
```
    Returns true if the current device supports text-to-speech capability.
  - speechToText
```
public boolean speechToText(String prompt)
```
    Asks the device to start recording speech and converting it to text. The given prompt text is shown on the screen to prompt the user to speak. When the spoken words are done converting to text, the method onSpeechToTextReady will be called. Subclasses should override that method to grab the spoken text as a string. Returns false if the action failed (e.g. if this device cannot support speech-to-text).
  - speechToTextSupported
```
public boolean speechToTextSupported()
```
    Returns true if the current device supports speech-to-text recognition.
  - onSpeechToTextReady
```
public void onSpeechToTextReady(String spokenText)
```
    Override this method to indicate what to do when a speech-to-text action is done recording the user's voice and translating it to text. The spoken text will be passed to this method as a string.
  - dial
```
public void dial(String phoneNumber)
```
    Launches the system default phone dialer application to make a call to the given telephone number. Requires the permission android.permission.CALL_PHONE to work.
  - map
```
public void map(double lat,
                double lng)
```
    Launches the system default mapping application to display a map centered about the given latitude / longitude coordinates at the default zoom level of 14.
  - map
```
public void map(double lat,
                double lng,
                int zoom)
```
    Launches the system default mapping application to display a map centered about the given latitude / longitude coordinates at the given zoom level.
  - textMessage
```
public void textMessage(String phoneNumber)
```
    Launches the system default text messaging application to send a message to the given telephone number. Requires the permission android.permission.SEND_SMS to work.
  - textMessage
```
public void textMessage(String phoneNumber,
                        String messageBody)
```
    Launches the system default text messaging application to send a message to the given telephone number with the given message body text. Requires the permission android.permission.SEND_SMS to work.
  - webBrowser
```
public void webBrowser(String webPageUrl)
```
    Launches the system default web browser to display the web page at the given URL.
  - log
```
public void log(Object message)
```
    Prints a debug (.d) log message containing the given text.
  - log
```
public void log(String message)
```
    Prints a debug (.d) log message containing the given text.
  - log
```
public void log(String message,
                Throwable exception)
```
    Prints a WTF (.wtf) log message containing the given text and exception.
  - log
```
public void log(Throwable exception)
```
    Prints a WTF (.wtf) log message containing the given exception.
  - printf
```
public void printf(String message,
                   Object... args)
```
    Prints a verbose (.v) log message containing the given formatted string.
  - println
```
public void println(Object message)
```
    Prints a verbose (.v) log message containing the given text.
  - println
```
public void println(String message)
```
    Prints a verbose (.v) log message containing the given text.
  - microphoneExists
```
public boolean microphoneExists()
```
    Returns true if the device has a microphone.
  - audioOutExists
```
public boolean audioOutExists()
```
    Returns true if the device has an audio output.
  - bluetoothExists
```
public boolean bluetoothExists()
```
    Returns true if the device has Bluetooth capability.
  - cameraExists
```
public boolean cameraExists()
```
    Returns true if the device has a camera.
  - networkConnectionExists
```
public boolean networkConnectionExists()
```
    Returns true if the device currently has a working internet connection, as reported by the system connectivity service.
  - wifiConnectionExists
```
public boolean wifiConnectionExists()
```
    Returns true if the device currently has a working wifi connection, as reported by the system connectivity service. If you just want to see whether any connection to the internet exists, use networkConnectionExists instead.
  - mobileConnectionExists
```
public boolean mobileConnectionExists()
```
    Returns true if the device currently has a working mobile internet connection, as reported by the system connectivity service. If you just want to see whether any connection to the internet exists, use networkConnectionExists instead.
  - takePhoto
```
public boolean takePhoto()
```
    Instructs the device to take a photo without saving it to a file. The onPhotoReady method will be called when the photo is ready. Returns false if the action failed (e.g. if this device has no camera).
  - takePhoto
```
public void takePhoto(String filename)
```
    Instructs the device to take a photo and save it to a file. The onPhotoReady method will be called when the photo is ready.
  - photoGallery
```
public void photoGallery()
```
    Launches the device's photo gallery activity. Once the photo has been chosen, the onPhotoReady method will be called. Note that your app needs the permissions android.permission.MANAGE_DOCUMENTS and android.permission.READ_EXTERNAL_STORAGE to read photos from the photo gallery.
  - onPhotoReady
```
public void onPhotoReady(Bitmap bitmap)
```
    Override this method to indicate what to do when a photo is done being taken or chosen. The photo will be passed to this method as a Bitmap object.
  - toast
```
public void toast(Object text)
```
    Pops up a short Toast notification to display the given text.
  - toast
```
public void toast(Object text,
                  int length)
```
    Pops up a Toast notification of the given time length to display the given text. The length must be Toast.LENGTH_SHORT or Toast.LENGTH_LONG.
  - toast
```
public void toast(String text)
```
    Pops up a Toast notification of the given time length to display the given text.
  - toast
```
public void toast(String text,
                  int length)
```
    Pops up a Toast notification of the given time length to display the given text. The length must be Toast.LENGTH_SHORT or Toast.LENGTH_LONG.
  - setWakeLock
```
public void setWakeLock(boolean wakeLockEnabled)
```
    Sets wake lock to be enabled (true) or disabled (false). If true, turns on a wake lock so that your device's screen will not lock until further notice while your app is running. If false, turns off wake lock if it was previously enabled; if wake lock is not enabled, there is no effect. Note that your app needs the permission android.permission.WAKE_LOCK to request a wake lock.
  - wakeLockIsEnabled
```
public boolean wakeLockIsEnabled()
```
    Returns true if the wake lock is currently enabled.
  - setFullScreenMode
```
public void setFullScreenMode(boolean fullScreen)
```
    Sets whether the app should hide its title bar and show itself in full-screen mode (true) or have a standard app title bar (false).
  - showAlertDialog
```
public AlertDialog showAlertDialog(String message)
```
    Shows an alert dialog to display a message to the user. When the user is done with the dialog, your activity's onAlertDialogClose method will be called to notify you when they press OK.
  - showAlertDialog
```
public AlertDialog showAlertDialog(@StringRes
                                   int messageID)
```
    Shows an alert dialog to display a message to the user. When the user is done with the dialog, your activity's onAlertDialogClose method will be called to notify you when they press OK.
  - showConfirmDialog
```
public AlertDialog showConfirmDialog(String message)
```
    Shows an confirm dialog to ask a yes/no question to the user. When the user is done with the dialog, your activity's onAlertDialogClose method will be called to notify you if they press Yes, or onAlertDialogCancel if they press No.
  - showConfirmDialog
```
public AlertDialog showConfirmDialog(String message,
                                     String positiveButtonText,
                                     String negativeButtonText)
```
    Shows an confirm dialog to ask a yes/no question to the user. When the user is done with the dialog, your activity's onAlertDialogClose method will be called to notify you if they press Yes, or onAlertDialogCancel if they press No.
  - showConfirmDialog
```
public AlertDialog showConfirmDialog(@StringRes
                                     int messageID)
```
    Shows an confirm dialog to ask a yes/no question to the user. When the user is done with the dialog, your activity's onAlertDialogClose method will be called to notify you if they press Yes, or onAlertDialogCancel if they press No.
  - showConfirmDialog
```
public AlertDialog showConfirmDialog(@StringRes
                                     int messageID,
                                     @StringRes
                                     int positiveButtonTextID,
                                     @StringRes
                                     int negativeButtonTextID)
```
    Shows an confirm dialog to ask a yes/no question to the user. When the user is done with the dialog, your activity's onAlertDialogClose method will be called to notify you if they press Yes, or onDialogNegativeClick if they press No.
  - showInputDialog
```
public AlertDialog showInputDialog(String message)
```
    Shows an input dialog to prompt the user for a single text input string. When the user is done with the dialog, your activity's onInputDialogClose method will be called, passing the string that was typed by the user.
  - showInputDialog
```
public AlertDialog showInputDialog(String message,
                                   String positiveButtonText)
```
    Shows an input dialog to prompt the user for a single text input string. When the user is done with the dialog, your activity's onInputDialogClose method will be called, passing the string that was typed by the user.
  - showInputDialog
```
public AlertDialog showInputDialog(@StringRes
                                   int messageID)
```
    Shows an input dialog to prompt the user for a single text input string. When the user is done with the dialog, your activity's onInputDialogClose method will be called, passing the string that was typed by the user.
  - showInputDialog
```
public AlertDialog showInputDialog(@StringRes
                                   int messageID,
                                   @StringRes
                                   int positiveButtonTextID)
```
    Shows an input dialog to prompt the user for a single text input string. When the user is done with the dialog, your activity's onInputDialogClose method will be called, passing the string that was typed by the user.
  - showMultiInputDialog
```
public AlertDialog showMultiInputDialog(String... prompts)
```
    Shows a multiple-input dialog to prompt the user for multiple text input strings. When the user is done with the dialog, your activity's onMultiInputDialogClose method will be called, passing an array of strings that were typed by the user.
  - showMultiInputDialogWithMessage
```
public AlertDialog showMultiInputDialogWithMessage(String message,
                                                   String... prompts)
```
    Shows a multiple-input dialog to prompt the user for multiple text input strings. When the user is done with the dialog, your activity's onMultiInputDialogClose method will be called, passing an array of strings that were typed by the user.
  - showMultiInputDialog
```
public AlertDialog showMultiInputDialog(@ArrayRes
                                        int promptsID)
```
    Shows a multiple-input dialog to prompt the user for multiple text input strings. When the user is done with the dialog, your activity's onMultiInputDialogClose method will be called, passing an array of strings that were typed by the user.
  - showMultiInputDialog
```
public AlertDialog showMultiInputDialog(@StringRes
                                        int messageID,
                                        @ArrayRes
                                        int promptsID)
```
    Shows a multiple-input dialog to prompt the user for multiple text input strings. When the user is done with the dialog, your activity's onMultiInputDialogClose method will be called, passing an array of strings that were typed by the user.
  - showListInputDialog
```
public AlertDialog showListInputDialog(String... items)
```
    Shows a list input dialog to allow the user to tap one of several choices. When the user is done with the dialog, your activity's onInputDialogClose method will be called, passing the string that was typed by the user.
  - showListInputDialog
```
public AlertDialog showListInputDialog(@ArrayRes
                                       int itemsID)
```
    Shows a list input dialog to allow the user to tap one of several choices. When the user is done with the dialog, your activity's onInputDialogClose method will be called, passing the string that was typed by the user.
  - showCheckboxInputDialog
```
public AlertDialog showCheckboxInputDialog(String... items)
```
    Shows a multiple-checkbox dialog to prompt the user to check/uncheck any subset of a group of multiple checkbox input items. When the user is done with the dialog, your activity's onMultiInputDialogClose method will be called, passing an array of item strings that were checked by the user. No items will be initially checked.
  - showCheckboxInputDialog
```
public AlertDialog showCheckboxInputDialog(boolean[] checkedItems,
                                           String... items)
```
    Shows a multiple-checkbox dialog to prompt the user to check/uncheck any subset of a group of multiple checkbox input items. When the user is done with the dialog, your activity's onMultiInputDialogClose method will be called, passing an array of item strings that were checked by the user. Pass an array of booleans to indicate which items are initially checked, if any.
  - showCheckboxInputDialog
```
public AlertDialog showCheckboxInputDialog(@ArrayRes
                                           int itemsID)
```
    Shows a multiple-checkbox dialog to prompt the user to check/uncheck any subset of a group of multiple checkbox input items. When the user is done with the dialog, your activity's onMultiInputDialogClose method will be called, passing an array of item strings that were checked by the user.
  - showCheckboxInputDialog
```
public AlertDialog showCheckboxInputDialog(boolean[] checkedItems,
                                           @ArrayRes
                                           int itemsID)
```
    Shows a multiple-checkbox dialog to prompt the user to check/uncheck any subset of a group of multiple checkbox input items. When the user is done with the dialog, your activity's onMultiInputDialogClose method will be called, passing an array of item strings that were checked by the user. Pass an array of booleans to indicate which items are initially checked, if any.
  - showRadioInputDialog
```
public AlertDialog showRadioInputDialog(String... items)
```
    Shows a radio button dialog to prompt the user to check exactly one of a group of multiple radio button input items. When the user is done with the dialog, your activity's onInputDialogClose method will be called, passing the item string that was checked by the user.
  - showRadioInputDialog
```
public AlertDialog showRadioInputDialog(int checkedIndex,
                                        String... items)
```
    Shows a radio button dialog to prompt the user to check exactly one of a group of multiple radio button input items. When the user is done with the dialog, your activity's onInputDialogClose method will be called, passing the item string that was checked by the user. Pass an integer to represent the index that should be initially checked.
  - showRadioInputDialog
```
public AlertDialog showRadioInputDialog(@ArrayRes
                                        int itemsID)
```
    Shows a radio button dialog to prompt the user to check exactly one of a group of multiple radio button input items. When the user is done with the dialog, your activity's onInputDialogClose method will be called, passing the item string that was checked by the user.
  - showRadioInputDialog
```
public AlertDialog showRadioInputDialog(int checkedIndex,
                                        @ArrayRes
                                        int itemsID)
```
    Shows a radio button dialog to prompt the user to check exactly one of a group of multiple radio button input items. When the user is done with the dialog, your activity's onInputDialogClose method will be called, passing the item string that was checked by the user. Pass an integer to represent the index that should be initially checked.
  - showTimeInputDialog
```
public TimePickerDialog showTimeInputDialog()
```
    Shows a time picker dialog to prompt the user to select a time of day. When the user is done with the dialog, your activity's onTimeInputDialogClose method will be called, passing the hour and minute that were chosen by the user.
  - showTimeInputDialog
```
public TimePickerDialog showTimeInputDialog(String message)
```
    Shows a time picker dialog to prompt the user to select a time of day. When the user is done with the dialog, your activity's onTimeInputDialogClose method will be called, passing the hour and minute that were chosen by the user.
  - showTimeInputDialog
```
public TimePickerDialog showTimeInputDialog(int startHour,
                                            int startMinute)
```
    Shows a time picker dialog to prompt the user to select a time of day. When the user is done with the dialog, your activity's onTimeInputDialogClose method will be called, passing the hour and minute that were chosen by the user.
  - showTimeInputDialog
```
public TimePickerDialog showTimeInputDialog(String message,
                                            int startHour,
                                            int startMinute)
```
    Shows a time picker dialog to prompt the user to select a time of day. When the user is done with the dialog, your activity's onTimeInputDialogClose method will be called, passing the hour and minute that were chosen by the user.
  - showDateInputDialog
```
public DatePickerDialog showDateInputDialog()
```
    Shows a date picker dialog to prompt the user to select a date. When the user is done with the dialog, your activity's onDateInputDialogClose method will be called, passing the year, month, and day (1-based) that were chosen by the user.
  - showDateInputDialog
```
public DatePickerDialog showDateInputDialog(String message)
```
    Shows a date picker dialog to prompt the user to select a date. When the user is done with the dialog, your activity's onDateInputDialogClose method will be called, passing the year, month, and day (1-based) that were chosen by the user.
  - showDateInputDialog
```
public DatePickerDialog showDateInputDialog(int startYear,
                                            int startMonth,
                                            int startDay)
```
    Shows a date picker dialog to prompt the user to select a date. When the user is done with the dialog, your activity's onDateInputDialogClose method will be called, passing the year, month, and day (1-based) that were chosen by the user.
  - showDateInputDialog
```
public DatePickerDialog showDateInputDialog(String message,
                                            int startYear,
                                            int startMonth,
                                            int startDay)
```
    Shows a date picker dialog to prompt the user to select a date. When the user is done with the dialog, your activity's onDateInputDialogClose method will be called, passing the year, month, and day (1-based) that were chosen by the user.
  - showProgressDialog
```
public SimpleProgressDialog showProgressDialog()
```
    Shows a progress dialog with a progress bar. The dialog shows a default message of "Working ..." The dialog progresses up to a default max value of 100.
  - showProgressDialog
```
public SimpleProgressDialog showProgressDialog(String message)
```
    Shows a progress dialog with a progress bar. The dialog progresses up to a default max value of 100.
  - showProgressDialog
```
public SimpleProgressDialog showProgressDialog(String message,
                                               int max)
```
    Shows a progress dialog with a progress bar. The given max is the highest value the progress bar can reach; once it reaches that point, the client should presumably tell the progress dialog to dismiss() itself. Pass a max <= 0 for an indeterminate dialog that does not have a specific maximum.
  - setDialogsCancelable
```
public void setDialogsCancelable(boolean cancelable)
```
    Globally sets whether dialogs created with show_Xxx_Dialog(...) will display a Cancel button.
  - setDialogsIcon
```
public void setDialogsIcon(@DrawableRes
                           int iconID)
```
    Globally sets whether dialogs created with show_Xxx_Dialog(...) to display the given icon. Initially by default no icon will be shown on any dialogs.
  - setDialogsTitle
```
public void setDialogsTitle(String title)
```
    Globally sets the title that dialogs created with show_Xxx_Dialog(...) should display. Initially by default no title will be shown. Set to empty string or null to remove the title.
  - setDialogsTitle
```
public void setDialogsTitle(@StringRes
                            int titleID)
```
    Globally sets the title that dialogs created with show_Xxx_Dialog(...) should display. Initially by default no title will be shown. Set to empty string or null to remove the title.
  - onAlertDialogClose
```
public void onAlertDialogClose(AlertDialog dialog)
```
    Empty event listener method to be overridden.
  - onDateInputDialogClose
```
public void onDateInputDialogClose(View view,
                                   int year,
                                   int month,
                                   int day)
```
    Empty event listener method to be overridden.
  - onInputDialogClose
```
public void onInputDialogClose(AlertDialog dialog,
                               String input)
```
    Empty event listener method to be overridden.
  - onMultiInputDialogClose
```
public void onMultiInputDialogClose(AlertDialog dialog,
                                    String[] inputs)
```
    Empty event listener method to be overridden.
  - onProgressDialogClose
```
public void onProgressDialogClose(ProgressDialog dialog)
```
  - onTimeInputDialogClose
```
public void onTimeInputDialogClose(View view,
                                   int hour,
                                   int minute)
```
    Empty event listener method to be overridden.
  - onDialogNegativeClick
```
public void onDialogNegativeClick(DialogInterface dialog)
```
    Empty event listener method to be overridden.
  - onDialogCancel
```
public void onDialogCancel(DialogInterface dialog)
```
    Empty event listener method to be overridden.
  - getScreenWidth
```
public int getScreenWidth()
```
    Returns the width of the current Android device's screen, in pixels.
  - getScreenHeight
```
public int getScreenHeight()
```
    Returns the height of the current Android device's screen, in pixels.
  - getScreenRealWidth
```
public int getScreenRealWidth()
```
    Returns the 'real' width of the current Android device's screen, in pixels. This is the width without any title bars, borders, etc. that would otherwise surround the app.
  - getScreenRealHeight
```
public int getScreenRealHeight()
```
    Returns the 'real' height of the current Android device's screen, in pixels. This is the height without any title bars, borders, etc. that would otherwise surround the app.
  - getScreenDpi
```
public int getScreenDpi()
```
    Returns the current device's screen density in dots-per-inch (DPI), rounded down to the nearest integer.
  - getScreenDpiX
```
public int getScreenDpiX()
```
    Returns the current device's screen density in the x dimension in dots-per-inch (DPI), rounded down to the nearest integer. This is often but not always the same as the result from getScreenDpi, depending on the device.
  - getScreenDpiY
```
public int getScreenDpiY()
```
    Returns the current device's screen density in the x dimension in dots-per-inch (DPI), rounded down to the nearest integer. This is often but not always the same as the result from getScreenDpi, depending on the device.
  - getScreenDensity
```
public String getScreenDensity()
```
    Returns a string representing the current device's screen density, based on the following mapping:
    - up to 120 dpi: "ldpi"
    - 120 - 160 dpi: "mdpi"
    - 160 - 240 dpi: "hdpi"
    - 240 - 320 dpi: "xhdpi"
    - 320 - 480 dpi: "xxhdpi"
    - above 480 dpi: "xxxhdpi"
  - getScreenWidthInches
```
public float getScreenWidthInches()
```
    Returns the device's physical screen width in inches, based on its screen resolution in pixels and its density in DPI.
  - getScreenHeightInches
```
public float getScreenHeightInches()
```
    Returns the device's physical screen height in inches, based on its screen resolution in pixels and its density in DPI.
  - getScreenSizeInches
```
public float getScreenSizeInches()
```
    Returns the device's physical screen diagonal size in inches, based on its screen resolution in pixels and its density in DPI.
  - hasPermission
```
public boolean hasPermission(String permission)
```
    Returns true if our application has the given kind of permission, such as Manifest.permission.CAMERA.
  - requestPermission
```
public void requestPermission(String... permissions)
```
    Pops up a request for our application to acquire the given kind of permission(s), such as Manifest.permission.CAMERA. The activity uses a request code of REQ_CODE_REQUEST_PERMISSIONS.
  - ensurePermission
```
public void ensurePermission(String... permissions)
```
    Checks whether the current app has all of the given permissions; if it does not have any, pops up a request for our application to acquire them. The activity uses a request code of REQ_CODE_REQUEST_PERMISSIONS.
  - inflateLayout
```
public <T extends View> T inflateLayout(@LayoutRes
                                        int id)
```
    A shortcut for getting the layout inflater and asking it to inflate the layout with the given ID, with a null root/parent parameter. The return type is generic so that you do not need to cast it into any View subclass.
  - getLocation
```
public Location getLocation()
```
  - openOrCreateDatabase
```
public SQLiteDatabase openOrCreateDatabase(String name)
```
    Opens or creates a database with the given name in MODE_PRIVATE mode.
  - databaseExists
```
public boolean databaseExists(String name)
```
    Returns true if a database with the given name exists.
  - allowNetworkingOnMainThread
```
public void allowNetworkingOnMainThread()
```
    Instructs Android to allow your app to perform networking operations on the main thread. Normally trying to do networking on the main thread would cause an exception to be thrown because it can lock up the app's UI. Calling this method disables that restriction. Note that performing networking operations on the main thread is not good practice and should be done only for temporary debugging purposes.

Class SimpleActivity

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

REQ_CODE_TAKE_PICTURE

REQ_CODE_SPEECH_TO_TEXT

REQ_CODE_PHOTO_GALLERY

REQ_CODE_REQUEST_PERMISSIONS

Constructor Detail

SimpleActivity

Method Detail

getLibraryVersion

generateViewId

listCreateAdapter

listCreateAdapter

listCreateAdapter

listCreateAdapter

listGetItems

listSetItems

listSetItems

listSetItems

find

findById

findButton

findCalendarView

findCheckBox

findDatePicker

findEditText

findGridView

findImageButton

findImageView

findListView

findProgressBar

findRadioButton

findRadioGroup

findRatingBar

findScrollView

findSearchView

findSeekBar

findSpace

findSpinner

findStackView

findSwitch

findTextView

findTimePicker

findToggleButton

findToolbar

findViewGroup

findZoomButton

findFragment

findFragmentById

addFragment

addFragment

removeFragment

removeFragment

replaceFragment

replaceFragment

hideFragment

hideFragment

showDialogFragment

showFragment

showFragment

getResourceName

getResourceFullName

getResourceId

getResourceId

getAllDrawableResourceIds

getAllDrawableResourceNames

getAllRawResourceIds

getAllRawResourceNames

getBitmap

getBitmap

handleEnterKeyPress

onEnterKeyPress

onSwipeLeft

onSwipeRight

onSwipeUp