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WindowAnimationFrameStats

public final class WindowAnimationFrameStats
extends FrameStats implements Parcelable

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


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

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

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(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.

toString

added in API level 21
public String toString ()

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

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.

flags int: Additional flags about how the object should be written. May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE.