WindowAnimationFrameStats

Kotlin |Java

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

From class android.view.FrameStats

long

UNDEFINED_TIME_NANO

Undefined time.

From interface android.os.Parcelable

`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

From class


        
          android.view.FrameStats

`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.

From interface


        
          android.os.Parcelable

`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