PerformanceHintManager

Kotlin |Java

public final class PerformanceHintManager
extends Object

java.lang.Object
↳	android.os.PerformanceHintManager

The PerformanceHintManager allows apps to send performance hint to system.

Summary

Nested classes
`class`	`PerformanceHintManager.Session` A Session represents a group of threads with an inter-related workload such that hints for their performance should be considered as a unit.

Public methods
`PerformanceHintManager.Session`	`createHintSession(int[] tids, long initialTargetWorkDurationNanos)` Creates a `Session` for the given set of threads and sets their initial target work duration.
`long`	`getPreferredUpdateRateNanos()` Get preferred update rate information for this device.

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Added in API level 31

public PerformanceHintManager.Session createHintSession (int[] tids, 
                long initialTargetWorkDurationNanos)

Creates a Session for the given set of threads and sets their initial target work duration.

Parameters
`tids`	`int`: The list of threads to be associated with this session. They must be part of this process' thread group This value cannot be `null`.
`initialTargetWorkDurationNanos`	`long`: The desired duration in nanoseconds for the new session

Returns
`PerformanceHintManager.Session`	the new session if it is supported on this device, null if hint session is not supported on this device or the tid doesn't belong to the application

Throws
`IllegalArgumentException`	if the thread id list is empty, or initialTargetWorkDurationNanos is non-positive

Added in API level 31

public long getPreferredUpdateRateNanos ()

Get preferred update rate information for this device.

Returns
`long`	the preferred update rate supported by device software