UIAlertController is Crashed (iPad)

Question

I am using Xcode 6 to develop an iOS Application.

When I used UIAlertController, it can be worked well on iPhone 6 simulator, but crashes on iPad simula

Answer 1

I use this code, very easy and understand, maybe i can help for any

//if iPhone
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
        [self presentViewController:actionSheet animated:YES completion:nil];
    }
    //if iPad
    else {
        // Change Rect to position Popover
        UIPopoverController *popup = [[UIPopoverController alloc] initWithContentViewController:actionSheet];
        [popup presentPopoverFromRect:CGRectMake(self.view.frame.size.width/2, self.view.frame.size.height/4, 0, 0)inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
    }