ActivityManager

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public class ActivityManager
extends Object

java.lang.Object
↳	android.app.ActivityManager

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This class gives information about, and interacts with, activities, services, and the containing process.

A number of the methods in this class are for debugging or informational purposes and they should not be used to affect any runtime behavior of your app. These methods are called out as such in the method level documentation.

Most application developers should not have the need to use this class, most of whose methods are for specialized use cases. However, a few methods are more broadly applicable. For instance, isLowRamDevice() enables your app to detect whether it is running on a low-memory device, and behave accordingly. clearApplicationUserData() is for apps with reset-data functionality.

In some special use cases, where an app interacts with its Task stack, the app may use the ActivityManager.AppTask and ActivityManager.RecentTaskInfo inner classes. However, in general, the methods in this class should be used for testing and debugging purposes only.

Summary

Nested classes
class	ActivityManager.AppTask The AppTask allows you to manage your own application's tasks.
class	ActivityManager.MemoryInfo Information you can retrieve about the available memory through ActivityManager.getMemoryInfo.
class	ActivityManager.ProcessErrorStateInfo Information you can retrieve about any processes that are in an error condition.
class	ActivityManager.RecentTaskInfo Information you can retrieve about tasks that the user has most recently started or visited.
class	ActivityManager.RunningAppProcessInfo Information you can retrieve about a running process.
class	ActivityManager.RunningServiceInfo Information you can retrieve about a particular Service that is currently running in the system.
class	ActivityManager.RunningTaskInfo Information you can retrieve about a particular task that is currently "running" in the system.
class	ActivityManager.TaskDescription Information you can set and retrieve about the current activit