public final class WindowAnimationFrameStats extends FrameStats implements Parcelable
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)
.
Parcelable.ClassLoaderCreator<T>, Parcelable.Creator<T>
Modifier and Type | Field and Description |
---|---|
static Parcelable.Creator<WindowAnimationFrameStats> |
CREATOR |
mFramesPresentedTimeNano, mRefreshPeriodNano, UNDEFINED_TIME_NANO
CONTENTS_FILE_DESCRIPTOR, PARCELABLE_ELIDE_DUPLICATES, PARCELABLE_WRITE_RETURN_VALUE
Constructor and Description |
---|
WindowAnimationFrameStats() |
Modifier and Type | Method and Description |
---|---|
int |
describeContents()
Describe the kinds of special objects contained in this Parcelable
instance's marshaled representation.
|
void |
init(long refreshPeriodNano,
long[] framesPresentedTimeNano)
Initializes this isntance.
|
String |
toString()
Returns a string representation of the object.
|
void |
writeToParcel(Parcel parcel,
int flags)
Flatten this object in to a Parcel.
|
getEndTimeNano, getFrameCount, getFramePresentedTimeNano, getRefreshPeriodNano, getStartTimeNano
public static final Parcelable.Creator<WindowAnimationFrameStats> CREATOR
public void init(long refreshPeriodNano, long[] framesPresentedTimeNano)
refreshPeriodNano
- The display refresh period.framesPresentedTimeNano
- The presented frame times.public int describeContents()
Parcelable
Parcelable.writeToParcel(Parcel, int)
,
the return value of this method must include the
Parcelable.CONTENTS_FILE_DESCRIPTOR
bit.describeContents
in interface Parcelable
Parcelable.CONTENTS_FILE_DESCRIPTOR
public void writeToParcel(Parcel parcel, int flags)
Parcelable
writeToParcel
in interface Parcelable
parcel
- The Parcel in which the object should be written.flags
- Additional flags about how the object should be written.
May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE
.public String toString()
Object
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())