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Fix a crash, when SDAnimatedImageView dealloc, displayLinkContext in block will be a bad pointer

This commit is contained in:
Gondnat 2019-03-29 14:16:36 +08:00
parent d9c8ba6da2
commit d85f94da96
1 changed files with 3 additions and 1 deletions
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4
SDWebImage/SDAnimatedImageView.m
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@ -742,8 +742,10 @@ static CVReturn renderCallback(CVDisplayLinkRef displayLink, const CVTimeStamp *
// Calculate refresh duration // Calculate refresh duration
NSTimeInterval duration = (double)inOutputTime->videoRefreshPeriod / ((double)inOutputTime->videoTimeScale * inOutputTime->rateScalar); NSTimeInterval duration = (double)inOutputTime->videoRefreshPeriod / ((double)inOutputTime->videoTimeScale * inOutputTime->rateScalar);
// CVDisplayLink callback is not on main queue // CVDisplayLink callback is not on main queue
SDAnimatedImageView *imageView = (__bridge SDAnimatedImageView *)displayLinkContext;
__weak SDAnimatedImageView *weakImageView = imageView;
dispatch_async(dispatch_get_main_queue(), ^{ dispatch_async(dispatch_get_main_queue(), ^{
[(__bridge SDAnimatedImageView *)displayLinkContext displayDidRefresh:displayLink duration:duration]; [weakImageView displayDidRefresh:displayLink duration:duration];
}); });
return kCVReturnSuccess; return kCVReturnSuccess;
} }