UIImagePickerController iOS8问题

Question

问题出在iPhone6（iOS 8.1和iOS 8.1.1）和UIImagePickerController上

我使用代码：

self.imagePickerController = [[UIImagePickerController alloc] init];
    [self.imagePickerController setSourceType:UIImagePickerControllerSourceTypeCamera];
    self.imagePickerController.showsCameraControls = NO;
    self.imagePickerController.cameraDevice = UIImagePickerControllerCameraDeviceFront;

self.imagePickerController.view.layer.borderWidth = 2;
        self.imagePickerController.view.layer.borderColor = [UIColor redColor].CGColor;

[self presentViewController:self.imagePickerController animated:YES completion:nil];

但是在那之后，在iPhone6上我看到了没有底部的相机视图（在iPhone4s iOS 8.1上一切正常）：

Answer 1

图像的顶部具有4：3的比例，要使相机以全屏显示，您可以执行以下操作。

CGSize screenSize = [[UIScreen mainScreen] bounds].size;
// set the aspect ratio of the camera
float heightRatio = 4.0f / 3.0f;
// calculate the height of the camera based on the screen width
float cameraHeight = screenSize.width * heightRatio;
// calculate the ratio that the camera height needs to be scaled by
float scale = screenSize.height / cameraHeight;

// move the controller to the center of the screen
self.imagePickerController.cameraViewTransform = CGAffineTransformMakeTranslation(0, (screenSize.height - cameraHeight) / 2.0);
// concatenate the scale transform
self.imagePickerController.cameraViewTransform = CGAffineTransformScale(self.imagePickerController.cameraViewTransform, scale, scale);