ActivityCompat

ActivityCompat

 ActivityCompat ()

This class should not be instantiated, but the constructor must be visible for the class to be extended (as in support-v13).

finishAffinity

 void finishAffinity (Activity activity)

Finish this activity, and tries to finish all activities immediately below it in the current task that have the same affinity.

On Android 4.1+ calling this method will call through to the native version of this method. For other platforms finish() will be called instead.

finishAfterTransition

 void finishAfterTransition (Activity activity)

Reverses the Activity Scene entry Transition and triggers the calling Activity to reverse its exit Transition. When the exit Transition completes, finish() is called. If no entry Transition was used, finish() is called immediately and the Activity exit Transition is run.

On Android 4.4 or lower, this method only finishes the Activity with no special exit transition.

getReferrer

 Uri getReferrer (Activity activity)

Return information about who launched this activity. If the launching Intent contains an Intent.EXTRA_REFERRER, that will be returned as-is; otherwise, if known, an android-app: referrer URI containing the package name that started the Intent will be returned. This may return null if no referrer can be identified -- it is neither explicitly specified, nor is it known which application package was involved.

If called while inside the handling of onNewIntent(Intent), this function will return the referrer that submitted that new intent to the activity. Otherwise, it always returns the referrer of the original Intent.

Note that this is not a security feature -- you can not trust the referrer information, applications can spoof it.

invalidateOptionsMenu

 boolean invalidateOptionsMenu (Activity activity)

This method was deprecated in API level 27.1.0.
Use invalidateOptionsMenu() directly.

Invalidate the activity's options menu, if able.

Before API level 11 (Android 3.0/Honeycomb) the lifecycle of the options menu was controlled primarily by the user's operation of the hardware menu key. When the user presses down on the menu key for the first time the menu was created and prepared by calls to onCreateOptionsMenu(android.view.Menu) and onPrepareOptionsMenu(android.view.Menu) respectively. Subsequent presses of the menu key kept the existing instance of the Menu itself and called onPrepareOptionsMenu(android.view.Menu) to give the activity an opportunity to contextually alter the menu before the menu panel was shown.

In Android 3.0+ the Action Bar forces the options menu to be built early so that items chosen to show as actions may be displayed when the activity first becomes visible. The Activity method invalidateOptionsMenu forces the entire menu to be destroyed and recreated from onCreateOptionsMenu(android.view.Menu), offering a similar though heavier-weight opportunity to change the menu's contents. Normally this functionality is used to support a changing configuration of Fragments.

Applications may use this support helper to signal a significant change in activity state that should cause the options menu to be rebuilt. If the app is running on an older platform version that does not support menu invalidation the app will still receive onPrepareOptionsMenu(android.view.Menu) the next time the user presses the menu key and this method will return false. If this method returns true the options menu was successfully invalidated.

postponeEnterTransition

 void postponeEnterTransition (Activity activity)

requestDragAndDropPermissions

 DragAndDropPermissionsCompat requestDragAndDropPermissions (Activity activity, DragEvent dragEvent)

Create DragAndDropPermissionsCompat object bound to this activity and controlling the access permissions for content URIs associated with the DragEvent.

requestPermissions

 void requestPermissions (Activity activity, String[] permissions, int requestCode)

Requests permissions to be granted to this application. These permissions must be requested in your manifest, they should not be granted to your app, and they should have protection level #PROTECTION_DANGEROUS dangerous, regardless whether they are declared by the platform or a third-party app.

Normal permissions PROTECTION_NORMAL are granted at install time if requested in the manifest. Signature permissions PROTECTION_SIGNATURE are granted at install time if requested in the manifest and the signature of your app matches the signature of the app declaring the permissions.

If your app does not have the requested permissions the user will be presented with UI for accepting them. After the user has accepted or rejected the requested permissions you will receive a callback reporting whether the permissions were granted or not. Your activity has to implement ActivityCompat.OnRequestPermissionsResultCallback and the results of permission requests will be delivered to its onRequestPermissionsResult(int, String[], int[]) method.

Note that requesting a permission does not guarantee it will be granted and your app should be able to run without having this permission.

This method may start an activity allowing the user to choose which permissions to grant and which to reject. Hence, you should be prepared that your activity may be paused and resumed. Further, granting some permissions may require a restart of you application. In such a case, the system will recreate the activity stack before delivering the result to your onRequestPermissionsResult(int, String[], int[]).

When checking whether you have a permission you should use checkSelfPermission(android.content.Context, String).

Calling this API for permissions already granted to your app would show UI to the user to decided whether the app can still hold these permissions. This can be useful if the way your app uses the data guarded by the permissions changes significantly.

You cannot request a permission if your activity sets noHistory to true in the manifest because in this case the activity would not receive result callbacks including onRequestPermissionsResult(int, String[], int[]).

The RuntimePermissions sample app demonstrates how to use this method to request permissions at run time.

requireViewById

 T requireViewById (Activity activity, int id)

Finds a view that was identified by the android:id XML attribute that was processed in onCreate(Bundle), or throws an IllegalArgumentException if the ID is invalid, or there is no matching view in the hierarchy.

Note: In most cases -- depending on compiler support -- the resulting view is automatically cast to the target class type. If the target class type is unconstrained, an explicit cast may be necessary.

setEnterSharedElementCallback

 void setEnterSharedElementCallback (Activity activity, SharedElementCallback callback)

When makeSceneTransitionAnimation(Activity, android.view.View, String) was used to start an Activity, callback will be called to handle shared elements on the launched Activity. This requires FEATURE_CONTENT_TRANSITIONS.

setExitSharedElementCallback

 void setExitSharedElementCallback (Activity activity, SharedElementCallback callback)

When makeSceneTransitionAnimation(Activity, android.view.View, String) was used to start an Activity, callback will be called to handle shared elements on the launching Activity. Most calls will only come when returning from the started Activity. This requires FEATURE_CONTENT_TRANSITIONS.

setPermissionCompatDelegate

 void setPermissionCompatDelegate (ActivityCompat.PermissionCompatDelegate delegate)

Sets the permission delegate for ActivityCompat. Replaces the previously set delegate.

shouldShowRequestPermissionRationale

 boolean shouldShowRequestPermissionRationale (Activity activity, String permission)

Gets whether you should show UI with rationale for requesting a permission. You should do this only if you do not have the permission and the context in which the permission is requested does not clearly communicate to the user what would be the benefit from granting this permission.

For example, if you write a camera app, requesting the camera permission would be expected by the user and no rationale for why it is requested is needed. If however, the app needs location for tagging photos then a non-tech savvy user may wonder how location is related to taking photos. In this case you may choose to show UI with rationale of requesting this permission.

startActivityForResult

 void startActivityForResult (Activity activity, Intent intent, int requestCode, Bundle options)

Start new activity with options, if able, for which you would like a result when it finished.

In Android 4.1+ additional options were introduced to allow for more control on activity launch animations. Applications can use this method along with ActivityOptionsCompat to use these animations when available. When run on versions of the platform where this feature does not exist the activity will be launched normally.

startIntentSenderForResult

 void startIntentSenderForResult (Activity activity, IntentSender intent, int requestCode, Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags, Bundle options)

Start new IntentSender with options, if able, for which you would like a result when it finished.

In Android 4.1+ additional options were introduced to allow for more control on activity launch animations. Applications can use this method along with ActivityOptionsCompat to use these animations when available. When run on versions of the platform where this feature does not exist the activity will be launched normally.

startPostponedEnterTransition

 void startPostponedEnterTransition (Activity activity)