iPhone - 从垂直切换到水平时防止 UIImageView 旋转
我有一个带有相机覆盖层的应用程序。
在这个覆盖视图中，我有 2 个 imageView 和 1 个视图。 1 个用于叠加图形绘制的图像视图。
我将拍摄的照片放入图像视图中。
我为一些自定义绘图自定义视图。
当 iPhone 处于水平位置拍照时，图像视图中显示的照片会旋转。所以我的图片两边都有很大的空间。
我尝试将其放入 OverlayViewController 但没有任何效果：
shouldAutorotateToInterfaceOrientation
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
所有视图和图像视图在 IB 中具有相同的参数（对于那些常见的参数）。
当手机不垂直时如何防止图片旋转到图像视图？
注意：我必须能够保持自动旋转可以在应用程序中显示的其他视图的能力。
I have an app with a camera overlay.
Into this overlay view I have 2 imageViews and 1 View.
1 image view for overlay graphic drawing.
I image view to put the taken picture into it.
I custom View for some custom drawing.
When the iPhone is in horizontal position when taking the photo, the displayed photo into the image view is rotated. So I have a big space on both sides of the picture.
I've tried to put this into the OverlayViewController but without any effect :
shouldAutorotateToInterfaceOrientation
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
All view and image view have the same params into IB (for those params that are common).
How may I prevent the picture to rotate into the image view when the phone is not vertical ?
Note : I must be able to keep the ability to auto rotate the other views that I can display in the app.
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在视图控制器的
willAnimateRotationToInterfaceOrientation:duration:方法中，您可以对 UIImageView 的transform属性应用相反的旋转。例如，如果控制器旋转到 UIInterfaceOrientationLandscapeLeft，即从纵向顺时针旋转 90°。因此，如果对图像视图应用 90° 逆时针旋转，它看起来根本没有旋转。In your view controller's
willAnimateRotationToInterfaceOrientation:duration:method, you can apply an opposite rotation to the UIImageView'stransformproperty. For example, if the controller is rotating to UIInterfaceOrientationLandscapeLeft, that is a 90° clockwise rotation from portrait. So if you apply a 90° counterclockwise rotation to the image view, it will seem to not have rotated at all.您可以直接将其添加到窗口，该窗口不会自动旋转。
You can add it to the window directly, which won't auto-rotate.