Resize ModalViewController and position it at center in iOS 7

Question

I am trying to show a modalView on an iPad by reducing its width and height, but the problem is that it is not center-aligned. In iOS 6 it used to work fine, but in iOS 7 it is not center aligned.

Below is my code:

 m_helpQA = [[HelpQAViewController alloc]init];

 m_helpQA.modalPresentationStyle = UIModalPresentationFormSheet;      

 [self presentViewController:m_helpQA animated:YES completion:NULL];
 m_helpQA.view.superview.bounds = CGRectMake(0, 0, 350, 250);//Dimensions of ModalView.

presently I am getting it this way

Answer 1

For iOS 7 try this:

[self.navigationController presentViewController:navigationController animated:YES completion:^{
    //Make the modal bigger than normal
    navigationController.view.superview.bounds = CGRectMake(0, 0, 700, 650);
}];

The animation will look ugly so I would recommend adding an animation to improve it:

[self.navigationController presentViewController:navigationController animated:YES completion:^{
    [UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionCurveEaseIn animations:^{
        //Make the modal bigger than normal
        navigationController.view.superview.bounds = CGRectMake(0, 0, 700, 650);
    } completion:^(BOOL finished) {
    }];
}];

Also remember that you will need to set the frame of the navigationControllers view in the viewDidAppear for the content to be the correct size.