这是我正在使用的代码:CGRectimageRect=CGRectMake(0,0,oldImage.size.width,oldImage.size.height);CGRectnewRect=imageRect;UIGraphicsBeginImageContextWithOptions(newRect.size,NO,oldImage.scale);CGContextRefctx=UIGraphicsGetCurrentContext();CGContextScaleCTM(ctx,1,-1);CGContextTranslateCTM(ctx,0,-(newRect.size.

我正在尝试检测AVPlayerViewController何时处于全屏模式，但我很难做到这一点。我想知道用户何时选择展开按钮进入全屏，如下所示:我已经根据这些建议添加了合适的观察者:DetectVideoplayingfullscreeninPortraitorlandscapeHowtodetectfullscreenmodeofAVPlayerViewController适当的代码:varavWidth:CGFloat=375varavHeight:CGFloat=300overridefuncviewDidLoad(){super.viewDidLoad()letpath=NSB