iOS 8 UIImagePickerController只拍照片照片

我正在使用一个带有sourceType = UI ImagePickerControllerSourceTypeCamera的UIImagePickerController;

但是我想指定我只想拍摄照片,而不是视频,(在原生相机用户可以切换到视频)有没有办法这样做？

这是我正在使用的代码：

if (([UIImagePickerController isSourceTypeAvailable:
      UIImagePickerControllerSourceTypeCamera] == NO))
    return ;
    UIImagePickerController *cameraUI = [[UIImagePickerController alloc] init];
    cameraUI.sourceType = UIImagePickerControllerSourceTypeCamera;
    // Displays a control that allows the user to choose picture or
    // movie capture, if both are available:
    cameraUI.mediaTypes =
    [UIImagePickerController availableMediaTypesForSourceType:
     UIImagePickerControllerSourceTypeCamera];
    // Hides the controls for moving & scaling pictures, or for
    // trimming movies. To instead show the controls, use YES.
    cameraUI.allowsEditing = NO;
    cameraUI.delegate = self;
    [self presentViewController:cameraUI animated:YES completion:nil];

我的第一个猜测是更改sourceType = UIImagePickerControllerSourceTypeCamera;但其他选项是画廊选项.

我的第二个猜测是：更改mediaTypes的数组,但我不知道哪个1

https://developer.apple.com/library/ios/documentation/uikit/reference/uiimagepickercontroller_class/index.html#//apple_ref/c/tdef/UIImagePickerControllerCameraCaptureMode

cameraUI.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto;