AppCompatActivity

public AppCompatActivity()

Default constructor for AppCompatActivity. All Activities must have a default constructor for API 27 and lower devices or when using the default android.app.AppComponentFactory.

@ContentView
public AppCompatActivity(@LayoutRes int contentLayoutId)

Alternate constructor that can be used to provide a default layout that will be inflated as part of super.onCreate(savedInstanceState).

This should generally be called from your constructor that takes no parameters, as is required for API 27 and lower or when using the default android.app.AppComponentFactory.

public @Nullable ActionBar getSupportActionBar()

Support library version of getActionBar.

Retrieve a reference to this activity's ActionBar.

public @Nullable Intent getSupportParentActivityIntent()

Obtain an android.content.Intent that will launch an explicit target activity specified by sourceActivity's PARENT_ACTIVITY element in the application's manifest. If the device is running Jellybean or newer, the android:parentActivityName attribute will be preferred if it is present.

public void onConfigurationChanged(@NonNull Configuration newConfig)

{@inheritDoc}

Dispatches this call to all listeners added via addOnConfigurationChangedListener.

public void onCreateSupportNavigateUpTaskStack(@NonNull TaskStackBuilder builder)

Support version of onCreateNavigateUpTaskStack. This method will be called on all platform versions. Define the synthetic task stack that will be generated during Up navigation from a different task.

The default implementation of this method adds the parent chain of this activity as specified in the manifest to the supplied androidx.core.app.TaskStackBuilder. Applications may choose to override this method to construct the desired task stack in a different way.

This method will be invoked by the default implementation of onNavigateUp if shouldUpRecreateTask returns true when supplied with the intent returned by getParentActivityIntent.

Applications that wish to supply extra Intent parameters to the parent stack defined by the manifest should override onPrepareSupportNavigateUpTaskStack.

public boolean onMenuOpened(int featureId, Menu menu)

Please note: AppCompat uses its own feature id for the action bar: FEATURE_SUPPORT_ACTION_BAR.

public void onPanelClosed(int featureId, @NonNull Menu menu)

Please note: AppCompat uses its own feature id for the action bar: FEATURE_SUPPORT_ACTION_BAR.

public void onPrepareSupportNavigateUpTaskStack(@NonNull TaskStackBuilder builder)

Support version of onPrepareNavigateUpTaskStack. This method will be called on all platform versions. Prepare the synthetic task stack that will be generated during Up navigation from a different task.

This method receives the androidx.core.app.TaskStackBuilder with the constructed series of Intents as generated by onCreateSupportNavigateUpTaskStack. If any extra data should be added to these intents before launching the new task, the application should override this method and add that data here.

@CallSuper
public void onSupportActionModeFinished(@NonNull ActionMode mode)

Notifies the activity that a support action mode has finished. Activity subclasses overriding this method should call the superclass implementation.

@CallSuper
public void onSupportActionModeStarted(@NonNull ActionMode mode)

Notifies the Activity that a support action mode has been started. Activity subclasses overriding this method should call the superclass implementation.

public boolean onSupportNavigateUp()

This method is called whenever the user chooses to navigate Up within your application's activity hierarchy from the action bar.

If a parent was specified in the manifest for this activity or an activity-alias to it, default Up navigation will be handled automatically. See getSupportParentActivityIntent for how to specify the parent. If any activity along the parent chain requires extra Intent arguments, the Activity subclass should override the method onPrepareSupportNavigateUpTaskStack to supply those arguments.

See Tasks and Back Stack from the developer guide and Navigation from the design guide for more information about navigating within your app.

See the androidx.core.app.TaskStackBuilder class and the Activity methods getSupportParentActivityIntent, supportShouldUpRecreateTask, and supportNavigateUpTo for help implementing custom Up navigation.

public @Nullable ActionMode onWindowStartingSupportActionMode(@NonNull ActionMode.Callback callback)

Called when a support action mode is being started for this window. Gives the callback an opportunity to handle the action mode in its own unique and beautiful way. If this method returns null the system can choose a way to present the mode or choose not to start the mode at all.

public void setSupportActionBar(@Nullable Toolbar toolbar)

Set a Toolbar to act as the androidx.appcompat.app.ActionBar for this Activity window.

When set to a non-null value the getActionBar method will return an androidx.appcompat.app.ActionBar object that can be used to control the given toolbar as if it were a traditional window decor action bar. The toolbar's menu will be populated with the Activity's options menu and the navigation button will be wired through the standard home menu select action.

In order to use a Toolbar within the Activity's window content the application must not request the window feature FEATURE_SUPPORT_ACTION_BAR.

public @Nullable ActionMode startSupportActionMode(@NonNull ActionMode.Callback callback)

Start an action mode.

public void supportInvalidateOptionsMenu()

Support library version of invalidateOptionsMenu.

Invalidate the activity's options menu. This will cause relevant presentations of the menu to fully update via calls to onCreateOptionsMenu and onPrepareOptionsMenu the next time the menu is requested.

public void supportNavigateUpTo(@NonNull Intent upIntent)

Navigate from sourceActivity to the activity specified by upIntent, finishing sourceActivity in the process. upIntent will have the flag FLAG_ACTIVITY_CLEAR_TOP set by this method, along with any others required for proper up navigation as outlined in the Android Design Guide.

This method should be used when performing up navigation from within the same task as the destination. If up navigation should cross tasks in some cases, see supportShouldUpRecreateTask.

public boolean supportRequestWindowFeature(int featureId)

Enable extended support library window features.

This is a convenience for calling getWindow().requestFeature().

public boolean supportShouldUpRecreateTask(@NonNull Intent targetIntent)

Returns true if sourceActivity should recreate the task when navigating 'up' by using targetIntent.

If this method returns false the app can trivially call supportNavigateUpTo using the same parameters to correctly perform up navigation. If this method returns false, the app should synthesize a new task stack by using androidx.core.app.TaskStackBuilder or another similar mechanism to perform up navigation.

protected void onDestroy()

Destroy all fragments.

protected void onLocalesChanged(@NonNull LocaleListCompat locales)

Called when the locales have been changed. See applyAppLocales for more information.

protected void onNightModeChanged(int mode)

Called when the night mode has changed. See applyDayNight for more information.

protected void onPostResume()

Dispatch onResume() to fragments.

protected void onStart()

Dispatch onStart() to all fragments.

protected void onStop()

Dispatch onStop() to all fragments.

public final void ActivityKt.setupActionBarWithNavController(
    @NonNull AppCompatActivity receiver,
    @NonNull NavController navController,
    @NonNull AppBarConfiguration configuration
)

Sets up the ActionBar returned by AppCompatActivity.getSupportActionBar for use with a NavController.

By calling this method, the title in the action bar will automatically be updated when the destination changes (assuming there is a valid label).

The AppBarConfiguration you provide controls how the Navigation button is displayed.

You are responsible for calling NavController.navigateUp to handle the Navigation button. Typically this is done in AppCompatActivity.onSupportNavigateUp.

public final void ActivityKt.setupActionBarWithNavController(
    @NonNull AppCompatActivity receiver,
    @NonNull NavController navController,
    DrawerLayout drawerLayout
)

Sets up the ActionBar returned by AppCompatActivity.getSupportActionBar for use with a NavController.

By calling this method, the title in the action bar will automatically be updated when the destination changes (assuming there is a valid label).

The start destination of your navigation graph is considered the only top level destination. On the start destination of your navigation graph, the ActionBar will show the drawer icon if the given drawerLayout is non null. On all other destinations, the ActionBar will show the Up button.

You are responsible for calling NavController.navigateUp to handle the Navigation button. Typically this is done in AppCompatActivity.onSupportNavigateUp.