WindowAnimationFrameStats
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class WindowAnimationFrameStats : FrameStats, Parcelable
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 getStartTimeNano()
to 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 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 getFramePresentedTimeNano(int)
.
Summary
Inherited constants |
From class 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 : 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) ". Some implementations may want to release resources at this point.
|
|
From class FrameStats
|
Inherited functions |
From class FrameStats
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.
|
Int |
getFrameCount()
Gets the number of frames for which there is data.
|
Long |
getFramePresentedTimeNano(index: Int)
Get the time a frame at a given index was presented.
|
Long |
getRefreshPeriodNano()
Gets the refresh period of the display hosting the window(s) for which these statistics apply.
|
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.
|
|
Public methods
describeContents
fun describeContents(): Int
Deprecated: Deprecated in Java.
toString
fun toString(): String
Deprecated: Deprecated in Java.
Return |
String |
a string representation of the object. |
writeToParcel
fun writeToParcel(
parcel: Parcel,
flags: Int
): Unit
Deprecated: Deprecated in Java.
Properties