ios – AVPlayer – UILabel在视频中不可见

概述NSString *urlPath; NSURL *videoUrl; urlPath = [[NSBundle mainBundle] pathForResource:@"fogLoop" ofType:@"mp4"]; videoUrl = [NSURL fileURLWithPath:urlPath]; avPlayer = [AVPlayer playe

Nsstring *urlPath;    NSURL *vIDeoUrl;    urlPath = [[NSBundle mainBundle] pathForResource:@"fogloop" ofType:@"mp4"];    vIDeoUrl = [NSURL fileURLWithPath:urlPath];    avPlayer = [AVPlayer playerWithURL:vIDeoUrl];    avPlayerLayer = [AVPlayerLayer playerLayerWithPlayer:avPlayer];    avPlayerLayer.frame = vIDeoVIEw.layer.bounds;    avPlayerLayer.vIDeoGravity = AVLayerVIDeoGravityResizeAspectFill;    [vIDeoVIEw.layer addSublayer: avPlayerLayer];    avPlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone;    [[NSNotificationCenter defaultCenter] addobserver:self                                             selector:@selector(playerItemDIDReachEnd:)                                                 name:AVPlayerItemDidplayToEndTimeNotification                                               object:[avPlayer currentItem]];    [avPlayer play];

我在这个视图上有几个UILabel.我只想把视频作为背景元素.使用此代码,它似乎可以播放所有UI元素.如何让它去后台？

解决方法 您可以使用视图图层的zposition属性(它是CALayer对象)来更改视图的z-index.

theVIEw.layer.zposition = 1;

并在前面贴上标签

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