public
interface
FrameScheduler
| com.facebook.fresco.animation.frame.FrameScheduler |
 Known Indirect Subclasses
|
Class Overview
Frame scheduler used to calculate which frame to display for given animation times.
Summary
| Constants | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| int | FRAME_NUMBER_DONE | ||||||||||
| int | NO_NEXT_TARGET_RENDER_TIME | ||||||||||
| Public Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| abstract int |
getFrameNumberToRender(long animationTimeMs, long lastFrameTimeMs)
Get the frame number for the given animation time or
FRAME_NUMBER_DONE if the
animation is over. | ||||||||||
| abstract long |
getLoopDurationMs()
Get the loop duration of 1 full loop.
| ||||||||||
| abstract long |
getTargetRenderTimeForNextFrameMs(long animationTimeMs)
For a given animation time, calculate the target render time for the next frame in ms.
| ||||||||||
| abstract long |
getTargetRenderTimeMs(int frameNumber)
Get the target render time for the given frame number in ms.
| ||||||||||
| abstract boolean | isInfiniteAnimation() | ||||||||||
Constants
public static final int FRAME_NUMBER_DONE
Constant Value:
-1
(0xffffffff)
public static final int NO_NEXT_TARGET_RENDER_TIME
Constant Value:
-1
(0xffffffff)
Public Methods
public abstract int getFrameNumberToRender (long animationTimeMs, long lastFrameTimeMs)
Get the frame number for the given animation time or FRAME_NUMBER_DONE if the
animation is over.
Parameters
| animationTimeMs | the animation time to get the frame number for |
|---|---|
| lastFrameTimeMs | the time of the last draw before |
Returns
- the frame number to render or
FRAME_NUMBER_DONE
public abstract long getLoopDurationMs ()
Get the loop duration of 1 full loop.
Returns
- the loop duration in ms
public abstract long getTargetRenderTimeForNextFrameMs (long animationTimeMs)
For a given animation time, calculate the target render time for the next frame in ms. If the
animation is over, this will return NO_NEXT_TARGET_RENDER_TIME
Parameters
| animationTimeMs | the current animation time in ms |
|---|
Returns
- the target animation time in ms for the next frame after the given animation time or
NO_NEXT_TARGET_RENDER_TIMEif the animation is over
public abstract long getTargetRenderTimeMs (int frameNumber)
Get the target render time for the given frame number in ms.
Parameters
| frameNumber | the frame number to use |
|---|
Returns
- the target render time
public abstract boolean isInfiniteAnimation ()
Returns
- true if the animation is infinite