WindowAnimationFrameStats


public final class WindowAnimationFrameStats
extends FrameStats implements Parcelable

java.lang.Object
   ↳ android.view.FrameStats
     ↳ android.view.WindowAnimationFrameStats


This class was deprecated in API level 34.
Use Shared FrameTimeline jank metrics instead.

This class contains window animation frame statistics. For example, a window animation is usually performed when the application is transitioning from one activity to another. The frame statistics are a snapshot for the time interval from FrameStats.getStartTimeNano() to FrameStats.getEndTimeNano().

The key idea is that in order to provide a smooth user experience the system should run window animations at a specific time interval obtained by calling FrameStats.getRefreshPeriodNano(). If the system does not render a frame every refresh period the user will see irregular window transitions. The time when the frame was actually presented on the display by calling FrameStats.getFramePresentedTimeNano(int).

Summary

Inherited constants

long UNDEFINED_TIME_NANO

Undefined time.

int CONTENTS_FILE_DESCRIPTOR

Descriptor bit used with describeContents(): indicates that the Parcelable object's flattened representation includes a file descriptor.

int PARCELABLE_WRITE_RETURN_VALUE

Flag for use with writeToParcel(Parcel, int): the object being written is a return value, that is the result of a function such as "Parcelable someFunction()", "void someFunction(out Parcelable)", or "void someFunction(inout Parcelable)".

Fields

public static final Creator<WindowAnimationFrameStats> CREATOR

Public methods

int describeContents()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.

String toString()

Returns a string representation of the object.

void writeToParcel(Parcel parcel, int flags)

Flatten this object in to a Parcel.

Inherited 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.

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.

abstract int describeContents()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.

abstract void writeToParcel(Parcel dest, int flags)

Flatten this object in to a Parcel.

Fields

CREATOR

Added in API level 21
public static final Creator<WindowAnimationFrameStats> CREATOR

Public methods

describeContents

Added in API level 21
public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
int a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either 0 or CONTENTS_FILE_DESCRIPTOR

toString

Added in API level 21
public String toString ()

Returns a string representation of the object.

Returns
String a string representation of the object.

writeToParcel

Added in API level 21
public void writeToParcel (Parcel parcel, 
                int flags)

Flatten this object in to a Parcel.

Parameters
parcel Parcel: The Parcel in which the object should be written. This value cannot be null.

flags int: Additional flags about how the object should be written. May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE. Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES