隐藏在UIViewController后面

Question

我正在使用滑动菜单，就像你在Facebook或Path应用程序中看到的那样。

在后面的菜单中，我想允许用户通过使用相机或照片库添加图像。

我遇到的问题是主视图控制器，我滑动的那个，总是在顶部。

动作表显示得很好，但是模态视图控制器被主视图控制器部分隐藏了。

这是我的选择器代码:

- (void)viewDidLoad
{
    [super viewDidLoad];
    _UIPicker = [[UIImagePickerController alloc] init];
    _UIPicker.delegate = self;
}
- (IBAction)profilePicButtonTapped
{  
    UIActionSheet * actionSheet = [[UIActionSheet alloc] initWithTitle:@"Set Up Your Profile Picture" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:@"Camera", @"Photo Library", nil];
    actionSheet.actionSheetStyle = UIActionSheetStyleBlackOpaque;
    [actionSheet showInView:_rearTableView];
}
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex == 0)
    {
        _UIPicker.sourceType = UIImagePickerControllerSourceTypeCamera;
        [self presentViewController:_UIPicker animated:YES completion:nil];
    }
    else if (buttonIndex == 1)
    {
        _UIPicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
        [self presentViewController:_UIPicker animated:YES completion:nil];
    }
    else
    {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:@"Error" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil];
        [alert show];
    }
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    UIImage * selectedImage = [info objectForKey:UIImagePickerControllerOriginalImage];
    _profileImageView.image = selectedImage;
    [self dismissViewControllerAnimated:YES completion:nil];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    [picker dismissViewControllerAnimated:YES completion:nil];
}

Answer 1

解决这个问题的一个快速方法是在呈现选择器时隐藏主视图控制器，并在它被取消时再次显示它。假设你有一个对主视图控制器的引用，只需将它的view.hidden属性设置为YES。