FrameStats

public abstract class FrameStats
extends Object

java.lang.Object
↳	android.view.FrameStats

Known direct subclasses

WindowAnimationFrameStats	This class was deprecated in API level 34. Use Shared FrameTimeline jank metrics instead.
WindowContentFrameStats	This class contains window content frame statistics.

This is the base class for frame statistics.

Summary

Constants
`long`	`UNDEFINED_TIME_NANO` Undefined time.

Public constructors
`FrameStats()`

Public methods
`final long`	`getEndTimeNano()` Gets the end time of the interval for which these statistics apply.
`final int`	`getFrameCount()` Gets the number of frames for which there is data.
`final long`	`getFramePresentedTimeNano(int index)` Get the time a frame at a given index was presented.
`final long`	`getRefreshPeriodNano()` Gets the refresh period of the display hosting the window(s) for which these statistics apply.
`final long`	`getStartTimeNano()` Gets the start time of the interval for which these statistics apply.

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.

 public static final long UNDEFINED_TIME_NANO

Undefined time.

Constant Value: -1 (0xffffffffffffffff)

 public FrameStats ()

 public final long getEndTimeNano ()

Gets the end time of the interval for which these statistics apply. The end interval is the time when the last frame was presented.

Returns
`long`	The end time in nanoseconds or `UNDEFINED_TIME_NANO` if there is no frame data.

 public final int getFrameCount ()

Gets the number of frames for which there is data.

Returns
`int`	The number of frames.

 public final long getFramePresentedTimeNano (int index)

Get the time a frame at a given index was presented.

Parameters
`index`	`int`: The frame index.

Returns
`long`	The presented time in nanoseconds or `UNDEFINED_TIME_NANO` if the frame is not presented yet.

 public final long getRefreshPeriodNano ()

Gets the refresh period of the display hosting the window(s) for which these statistics apply.

Returns
`long`	The refresh period in nanoseconds.

 public final long getStartTimeNano ()

Gets the start time of the interval for which these statistics apply. The start interval is the time when the first frame was presented.

Returns
`long`	The start time in nanoseconds or `UNDEFINED_TIME_NANO` if there is no frame data.