标签:blog 使用 io width re c div res
UIView 可以设定 autoresizingMask,当它的 superView 尺寸改变时,适应何种变化。
不过 CALayer 却没有这个属性,如和做到让 CALayer 和 UIView 一样?可以这样:
// in ViewController - (void)viewWillLayoutSubviews { _playerLayer.frame = self.view.bounds; } // in View - (void)layoutSublayersOfLayer:(CALayer *)layer { _playerLayer.frame = self.bounds; }
这不是一个好的办法。
当当~
自定义一个 UIView,重写它的 + (Class)layerClass 方法,像这样
@interface RFPlayerLayerView : UIView @end @implementation RFPlayerLayerView + (Class)layerClass { return [AVPlayerLayer class]; } @end
使用时设置一些参数,就可以完美拥有 UIView 的 autoresizingMask 的属性了
- (void)setup { _layerView = [[RFPlayerLayerView alloc] initWithFrame:rect]; _playerLayer = (AVPlayerLayer *)[_layerView layer]; _playerLayer.player = _player; _playerLayer.videoGravity = AVLayerVideoGravityResizeAspect; _layerView.autoresizingMask = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight; [self.view addSubview:_layerView]; }
CALayer: autoresizingMask,布布扣,bubuko.com
标签:blog 使用 io width re c div res
原文地址:http://www.cnblogs.com/ihojin/p/calayer-autoresizingmask.html