如何翻译UIImagePickerController预览？

Question

当我打开UIImagePickerController()并设置showsCameraControls = false时，相机预览位于屏幕顶部。如何向下移动此预览，以便与showCameraControls = true的位置相同？

Answer 1

找到了答案，同时在线拖网：

// Create the UIImagePickerController without camera controls 
var imagePicker: UIImagePickerController = UIImagePickerController() 
imagePicker.delegate = self 
imagePicker.sourceType = .Camera 
imagePicker.allowsEditing = false 
imagePicker.showsCameraControls = false 

// Translate the camera preview down by 50px 
let translate: CGAffineTransform = CGAffineTransformMakeTranslation(0.0, 50.0) 
imagePicker.cameraViewTransform = translate 

// Now add custom overlay 
// ...