AVPlayerViewController 抛出 CATransformLayer 警告

问题描述

我想在我的应用程序中播放一个短视频，为了简单起见，我使用标准的 AVPlayerViewController

        guard let path = Bundle.main.path(forResource: video,ofType: "m4v") else {
            debugPrint("\(video).m4v not found")
            return
        }
        let videoURL = NSURL(fileURLWithPath: path)

//         Create an AVPlayer,passing it the local video url path
        let player = AVPlayer(url: videoURL as URL)
        let controller = AVPlayerViewController()
        videoController.videoGravity = .resizeAspectFill
        videoController.player = player
        present(videoController,animated: false) {
            player.play()
        }

视频播放正常，但显示的 ViewController 不断发出 CATransformLayer 警告：

2020-12-19 16:00:29.631839+0100 EXAMPLEAPP[1994:246899] <CATransformLayer: 0x600002660840> - changing property masksToBounds in transform-only layer,will have no effect
2020-12-19 16:00:29.632359+0100 EXAMPLEAPP[1994:246899] <CATransformLayer: 0x600002668e60> - changing property masksToBounds in transform-only layer,will have no effect
2020-12-19 16:00:29.659760+0100 EXAMPLEAPP[1994:246899] <CATransformLayer: 0x600002669880> - changing property masksToBounds in transform-only layer,will have no effect
2020-12-19 16:00:29.661994+0100 EXAMPLEAPP[1994:246899] [plugin] AddInstanceForFactory: No factory registered for id <CFUUID 0x60000268bee0> F8BB1C28-BAE8-11D6-9C31-00039315CD46
2020-12-19 16:00:29.753985+0100 EXAMPLEAPP[1994:246899] <CATransformLayer: 0x60000266de00> - changing property masksToBounds in transform-only layer,will have no effect
2020-12-19 16:00:29.756420+0100 EXAMPLEAPP[1994:246899] <CATransformLayer: 0x6000026701e0> - changing property masksToBounds in transform-only layer,will have no effect
2020-12-19 16:00:29.806045+0100 EXAMPLEAPP[1994:246899] <CATransformLayer: 0x600002669880> - changing property allowsGroupBlending in transform-only layer,will have no effect
2020-12-19 16:00:29.806191+0100 EXAMPLEAPP[1994:246899] <CATransformLayer: 0x60000266de00> - changing property allowsGroupBlending in transform-only layer,will have no effect

我不知道他说的是哪一层 tbh，也许有人可以指导我朝着正确的方向发展？

解决方法

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avplayer avplayerviewcontroller swift5