At run Time Suddenly My app show Black Screen After Launching Screen in Xcode 7.2.1...... And Suddenly It run Successfuly without do any changes.
My app suddenly shows Black Screen?
So you mean that sometimes it works and sometimes it doesn't? Sounds to me like some kind of race condition, where you have two unrelated things that sometimes accidentally interfere with each other. Is this an iOS or an OS X app?