ios - 有什么方法可以检测手机平放时的角度吗？

Question

有什么方法可以获取手机的当前角度，即使手机处于纵向锁定状态并试图通过右手(横向)位置或左手位置(横向)握住它来捕捉图像？

每当我通过右手位置拍摄图像(将主页按钮保持在右侧)时，我都能正确获取图像，但每当我通过左手位置拍摄图像时，我都会得到倒置图像(图像旋转 180 度) .如何解决这个问题？

我试过了但是没有用，因为方向总是纵向的

UIDeviceOrientation orientation=[[UIDevice currentDevice] orientation];

     // Do Orientation operations
     if (orientation == UIDeviceOrientationLandscapeRight)
     {
         MYLog(@"LandRight");
         rotation = [NSValue valueWithCGAffineTransform:CGAffineTransformMakeRotation(90 * (M_PI/180))];
     }
     else if(orientation == UIDeviceOrientationLandscapeLeft){
         MYLog(@"LandLeft");
         rotation = [NSValue valueWithCGAffineTransform:CGAffineTransformMakeRotation(-90 * (M_PI/180))];
     }
     else if(orientation == UIDeviceOrientationPortrait){
         MYLog(@"porttttt");
         rotation = [NSValue valueWithCGAffineTransform:CGAffineTransformMakeRotation(0 * (M_PI/180))];
     }
     else if(orientation == UIDeviceOrientationPortraitUpsideDown)
     {
         MYLog(@"portupdown");
         rotation = [NSValue valueWithCGAffineTransform:CGAffineTransformMakeRotation(1 * (M_PI/180))];
     }

     else if(orientation == UIDeviceOrientationFaceUp)
     {
         MYLog(@"faceup");
         rotation = [NSValue valueWithCGAffineTransform:CGAffineTransformMakeRotation(-90 * (M_PI/180))];
     }
     [transform setValue:rotation forKey:@"inputTransform"];
     enhancedImage = [transform outputImage];

任何更多的捕获都不应该旋转图像。

Answer 1

override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
    if UIDevice.current.orientation.isLandscape {
        print("Landscape")
    } else {
        print("Portrait")
    }
}

希望对你有帮助