iOS 14 YYAnimatedImageView加载图片失败处理
1.问题出在YYAnimatedImageView源码一个方法中
- (void)displayLayer:(CALayer *)layer {
if (_curFrame) {
layer.contents = (__bridge id)_curFrame.CGImage;
}
}
2.解决办法
第一种方法：修改源码方法
- (void)displayLayer:(CALayer *)layer {
if (_curFrame) {
layer.contents = (__bridge id)_curFrame.CGImage;
}else{
if (@available(iOS 14.0, *)) {
[super displayLayer:layer];
}
}
}
第二种方法：运行时
#import "YYAnimatedImageView+iOS14.h"
#import <objc/runtime.h>
@implementation YYAnimatedImageView (iOS14)
+ (void)load {
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
Method method1;
Method method2;
method1 = class_getInstanceMethod([self class], @selector(lz_displayLayer:));
method2 = class_getInstanceMethod([self class], @selector(displayLayer:));
method_exchangeImplementations(method1, method2);
});
}
- (void)lz_displayLayer:(CALayer *)layer {
Ivar ivar = class_getInstanceVariable(self.class, "_curFrame");
UIImage *_curFrame = object_getIvar(self, ivar);
if (_curFrame) {
layer.contents = (__bridge id)_curFrame.CGImage;
}else{
if (@available(iOS 14.0, *)) {
[super displayLayer:layer];
}
}
}
@end
