标签：KVO
UIView animation 里面的center值变化了，但是KVO监听不到？
#import "ViewController.h" @interface ViewController (){ UIImageView *iv; } @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; iv = [……
11-29 立刻查看
AVPlayer, KVO释放报错AVPlayerItem was deallocated
AVPlayer开发，KVO该释放的都释放了。在无网络状态下，连续开启几次播放器就会出现错误： AVPlayerItem was deallocated while key value observers were still registered with it dealloc如下： [player removeObserver……
09-18 立刻查看