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我手动创建AVCaptureVideoPreviewLayer(一类的CALayer)一旦AVCaptureSession开始运行,并增加它的UIView如下:AVCaptureVideoPreviewLayer自转
func captureSessionStartedRunning(session:AVCaptureSession?) {
if let captureSession = session {
if let previewLayer = AVCaptureVideoPreviewLayer.init(session: captureSession) {
previewLayer.frame = self.view.bounds
self.view.layer.addSublayer(previewLayer)
previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
}
}
}
我没有经历过与自转与大小级,那么有人可以告诉我什么是在这里处理自转的最简单方法吗?