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Avoid extra calculation for sd_imageFrameCount

This commit is contained in:
DreamPiggy 2021-05-25 16:08:53 +08:00
parent 7f078d21ba
commit a77e5f561e
1 changed files with 5 additions and 0 deletions
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5
SDWebImage/Core/UIImage+Metadata.m
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@ -34,6 +34,10 @@
if (!animatedImages || animatedImages.count <= 1) {
return 1;
}
NSNumber *value = objc_getAssociatedObject(self, @selector(sd_imageFrameCount));
if ([value isKindOfClass:[NSNumber class]]) {
return [value unsignedIntegerValue];
}
__block NSUInteger frameCount = 1;
__block UIImage *previousImage = animatedImages.firstObject;
[animatedImages enumerateObjectsUsingBlock:^(UIImage * _Nonnull image, NSUInteger idx, BOOL * _Nonnull stop) {
@ -46,6 +50,7 @@
}
previousImage = image;
}];
objc_setAssociatedObject(self, @selector(sd_imageFrameCount), @(frameCount), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
return frameCount;
}