NJones questions

NJones answers

• Released app shows blank screen, but not in debugger
• iOS MPMoviePlayerController playing audio in background
• calling didSelectRowAtIndexPath from other ViewController not responding iPad
• dismissModalViewControllerAnimated works on self but not parentViewController
• dispatch_sync on main queue hangs in unit test
• iOS / iPhone- Hiding one button when another is clicked
• dispatch_group_wait with GCD
• popToRootViewControllerAnimated does not display root view controller
• NSArray and NSString
• locationOfTouch results in SIGABRT