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added in version 1.0.0
belongs to Maven artifact androidx.core:core:1.0.0-rc01

AppLaunchChecker

public class AppLaunchChecker
extends Object

java.lang.Object
   ↳ androidx.core.app.AppLaunchChecker


This class provides APIs for determining how an app has been launched. This can be useful if you want to confirm that a user has launched your app through its front door activity from their launcher/home screen, rather than just if the app has been opened in the past in order to view a link, open a document or perform some other service for other apps on the device.

Summary

Public constructors

AppLaunchChecker()

This constructor was deprecated in API level 1.0.0. This type should not be instantiated as it contains only static methods.

Public methods

static boolean hasStartedFromLauncher(Context context)

Checks if this app has been launched by the user from their launcher or home screen since it was installed.

static void onActivityCreate(Activity activity)

Records the parameters of an activity's launch for later use by the other methods available on this class.

Inherited methods

Public constructors

AppLaunchChecker

added in version 1.0.0
public AppLaunchChecker ()

This constructor was deprecated in API level 1.0.0.
This type should not be instantiated as it contains only static methods.

Public methods

hasStartedFromLauncher

added in version 1.0.0
public static boolean hasStartedFromLauncher (Context context)

Checks if this app has been launched by the user from their launcher or home screen since it was installed.

To track this state properly you must call onActivityCreate(Activity) in your launcher activity's Activity.onCreate(Bundle) method.

Parameters
context Context: Context to check

Returns
boolean true if this app has been started by the user from the launcher at least once

onActivityCreate

added in version 1.0.0
public static void onActivityCreate (Activity activity)

Records the parameters of an activity's launch for later use by the other methods available on this class.

Your app should call this method in your launcher activity's Activity.onCreate(Bundle) method to track launch state. If the app targets API 23 (Android 6.0 Marshmallow) or later, this state will be eligible for full data backup and may be restored to the user's device automatically.

*

Parameters
activity Activity: the Activity currently running onCreate