Tim questions

Tim answers

• How to recover project after deleting App.xaml?
• How to horizontally align AppBarButton in command bar
• GKLocalPlayerListener protocol is not called
• How to replace the deprecated method splitViewController:willHideViewController:withBarButtonItem:forPopoverController:
• how to change the UIImagePickerController crop frame
• XCode won't run my application on a device/simulator anymore
• Difference between Game Center's didRequestMatchWithOtherPlayers and didRequestMatchWithRecipients?