One Button ActionSheet with ios 8

In my application, I found the action table is not displaying correctly, so I create a new demo project with one view and one button per button action. I have a post code like

-(IBAction)testActionsheet:(id)sender{
    UIActionSheet *objAction=[[UIActionSheet alloc] initWithTitle:nil delegate:nil cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:@"ActionSheet issue",nil];
    [objAction showFromRect:CGRectMake(300, 500, 90, 9) inView:self.view
               animated:YES];
}

      

        
        
        
      

    

but showing some cut from the top side ... anyone have a solution for this, with an action table?