UIImagePickerController.frame不是全屏

Question

我正在初始化一个像这样的UIImagePickerController:

    self.cameraController = [[UIImagePickerController alloc] init];

    self.cameraController.sourceType = UIImagePickerControllerSourceTypeCamera; 
    self.cameraController.showsCameraControls = NO;
    self.cameraController.navigationBarHidden = YES;
    self.cameraController.wantsFullScreenLayout = YES;

问题是,当显示它时,而不是相机控件,我得到一个黑色的条形.

如何让UIImagePickerController.frame占用所有屏幕空间？

谢谢!

Answer 1

iPhone的相机宽高比为4:3,而iPhone的屏幕宽高比为3:2.因此,实时摄像机图像不会覆盖整个屏幕.如果要摆脱黑条,则必须将小缩放变换(例如110%)应用于摄像机视图.