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我的代码如下:每次我开始运行会话时间它需要释放AVCaptureVideoPreviewLayer吗?
[session startRunning];
avLayer = [AVCaptureVideoPreviewLayer layerWithSession:session];
avLayer.frame = CGRectMake(0, 0, 320 , 416);
[self.view.layer addSublayer: avLayer];
avLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
,我需要AVCaptureVideoPreviewLayer添加到我的看法。
我的问题是:在添加新的之前是否需要释放AVCaptureVideoPreviewLayer?