Question

我正在使用Apple提供的示例AVCam，但它已针对我的应用程序进行了一些修改。然而，除了解决其他一些问题之外，没有任何原始内容真的被触及。然而，当它以横向模式工作时，我遇到了一个主要的障碍。

我在stackoverflow上从另一个问题中获取的正确类中有以下代码：

-(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {

[CATransaction begin];
if (toInterfaceOrientation==UIInterfaceOrientationLandscapeLeft){
    captureVideoPreviewLayer.orientation = UIInterfaceOrientationLandscapeLeft;
} else {
    captureVideoPreviewLayer.orientation = UIInterfaceOrientationLandscapeLeft;
}

[CATransaction commit];
[super willAnimateRotationToInterfaceOrientation:toInterfaceOrientation duration:duration];
}

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeLeft animated:NO];

return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft);
}

然而，它不起作用。此代码的目的是在移动电话时允许横向显示。每次换班时，控制台中都会弹出一个警告：

WARNING: -[<AVCaptureVideoPreviewLayer: 0x1ed97620> setOrientation:] is deprecated.  Please use AVCaptureConnection's -setVideoOrientation:

不确定如何解决此弃用错误，或者弃用是否导致它不会转变为格局。求救！

Answer 1

我可以为您提供解决方法来解决这个问题，即使我确信必须有更好的解决方案：

-(void)willAnimateRotationToInterfaceOrientation (UIInterfaceOrientation)toInterfaceOrientation
                                    duration:(NSTimeInterval)duration {
if (![[[self captureManager] recorder] isRecording]) {
[CATransaction begin];
if (toInterfaceOrientation==UIInterfaceOrientationLandscapeLeft){
    captureVideoPreviewLayer.orientation = UIInterfaceOrientationLandscapeLeft;
    captureVideoPreviewLayer.frame = CGRectMake(0, 0, 480, 320);

} else if (toInterfaceOrientation==UIInterfaceOrientationPortrait){
    captureVideoPreviewLayer.orientation = UIInterfaceOrientationPortrait;
    captureVideoPreviewLayer.frame = CGRectMake(0, 0, 320, 480);

} else if (toInterfaceOrientation==UIInterfaceOrientationLandscapeRight){
    captureVideoPreviewLayer.orientation = UIInterfaceOrientationLandscapeRight;
    captureVideoPreviewLayer.frame = CGRectMake(0, 0, 480, 320);

}

[CATransaction commit];
[super willAnimateRotationToInterfaceOrientation:toInterfaceOrientation duration:duration];
}

}

AVCam不适用于横向模式

1 个答案: