iphone - iOS 6 中已弃用方向

Question

看起来 avcapturevideopreviewlayer 的方向在 iOS 6 中已被弃用。有人知道新代码吗？这是我当前的(已折旧的)代码:

[self setPreviewLayer:[[AVCaptureVideoPreviewLayer alloc] initWithSession:[self captureSession]]];
[[self previewLayer] setVideoGravity:AVLayerVideoGravityResizeAspectFill];
previewLayer.orientation = UIInterfaceOrientationLandscapeRight;

Answer 1

你检查过文档吗？只有一行:

The layer’s orientation. (Deprecated in iOS 6.0. Use videoOrientation (AVCaptureConnection) instead.)

所以使用:

[[AVCaptureVideoPreviewLayer connection] setVideoOrientation: AVCaptureVideoOrientationLandscapeRight];

或

AVCaptureVideoPreviewLayer.connection.videoOrientation= AVCaptureVideoOrientationLandscapeRight;