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feat: animation playback mode done

This commit is contained in:
Insomnia 2020-10-29 09:58:45 +08:00
parent aa89511c74
commit 3926f1bc88
3 changed files with 24 additions and 32 deletions
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2
SDWebImage/Core/SDAnimatedImagePlayer.h
View File

@ -56,7 +56,7 @@ typedef NS_ENUM(NSUInteger, SDAnimatedImagePlaybackMode) {
/// `< 0.0` is not supported currently and stop animation. (may support reverse playback in the future)
@property (nonatomic, assign) double playbackRate;
/// The animation playback mode. Default mode is SDAnimatedImagePlaybackModeNormal.
/// Asynchronous setup animation playback mode. Default mode is SDAnimatedImagePlaybackModeNormal.
@property (nonatomic, assign) SDAnimatedImagePlaybackMode playbackMode;
/// Provide a max buffer size by bytes. This is used to adjust frame buffer count and can be useful when the decoding cost is expensive (such as Animated WebP software decoding). Default is 0.

52
SDWebImage/Core/SDAnimatedImagePlayer.m
View File

@ -140,7 +140,16 @@
#pragma mark - State Control
- (void)setupCurrentFrame {
if (self.playbackMode == )
if (self.currentFrameIndex != 0) {
return;
}
if (self.playbackMode == SDAnimatedImagePlaybackModeNormal ||
self.playbackMode == SDAnimatedImagePlaybackModeBounce) {
self.currentFrameIndex = 0;
} else if (self.playbackMode == SDAnimatedImagePlaybackModeReverse ||
self.playbackMode == SDAnimatedImagePlaybackModeReversedBounce) {
self.currentFrameIndex = self.totalFrameCount - 1;
}
if ([self.animatedProvider isKindOfClass:[UIImage class]]) {
UIImage *image = (UIImage *)self.animatedProvider;
@ -241,38 +250,21 @@
NSUInteger currentFrameIndex = self.currentFrameIndex;
NSUInteger nextFrameIndex = (currentFrameIndex + 1) % totalFrameCount;
switch (self.playbackMode) {
case SDAnimatedImagePlaybackModeNormal:
nextFrameIndex = (currentFrameIndex + 1) % totalFrameCount;
break;
case SDAnimatedImagePlaybackModeReverse:
nextFrameIndex = currentFrameIndex == 0 ? (totalFrameCount - 1) : (currentFrameIndex - 1) % totalFrameCount;
break;
case SDAnimatedImagePlaybackModeBounce: {
if (currentFrameIndex == 0) {
self.shouldReverse = false;
} else if (currentFrameIndex == totalFrameCount - 1) {
self.shouldReverse = true;
}
nextFrameIndex = self.shouldReverse ? (currentFrameIndex - 1) : (currentFrameIndex + 1);
nextFrameIndex %= totalFrameCount;
if (self.playbackMode == SDAnimatedImagePlaybackModeReverse) {
nextFrameIndex = currentFrameIndex == 0 ? (totalFrameCount - 1) : (currentFrameIndex - 1) % totalFrameCount;
} else if (self.playbackMode == SDAnimatedImagePlaybackModeBounce ||
self.playbackMode == SDAnimatedImagePlaybackModeReversedBounce) {
if (currentFrameIndex == 0) {
self.shouldReverse = false;
} else if (currentFrameIndex == totalFrameCount - 1) {
self.shouldReverse = true;
}
break;
case SDAnimatedImagePlaybackModeReversedBounce: {
if (currentFrameIndex == 0) {
self.shouldReverse = false;
} else if (currentFrameIndex == totalFrameCount - 1) {
self.shouldReverse = true;
}
nextFrameIndex = self.shouldReverse ? (currentFrameIndex - 1) : (currentFrameIndex + 1);
nextFrameIndex %= totalFrameCount;
}
break;
default:
break;
nextFrameIndex = self.shouldReverse ? (currentFrameIndex - 1) : (currentFrameIndex + 1);
nextFrameIndex %= totalFrameCount;
}
NSLog(@"current frame: %@ next frame: %@ total frame: %@", @(currentFrameIndex), @(nextFrameIndex), @(totalFrameCount));
// Check if we need to display new frame firstly
BOOL bufferFull = NO;
if (self.needsDisplayWhenImageBecomesAvailable) {

2
SDWebImage/Core/SDAnimatedImageView.h
View File

@ -54,7 +54,7 @@
*/
@property (nonatomic, assign) double playbackRate;
/// The animation playback mode. Default mode is SDAnimatedImagePlaybackModeNormal.
/// Asynchronous setup animation playback mode. Default mode is SDAnimatedImagePlaybackModeNormal.
@property (nonatomic, assign) SDAnimatedImagePlaybackMode playbackMode;
/**