The VideoLAN Forums

At the end of onCreate(),I have found this:

// 100 is the value for screen_orientation_start_lock
setRequestedOrientation(mScreenOrientation != 100 ? mScreenOrientation:getScreenOrientation());

I want to learn what does it mean,thank you!

It means that if the setting for screen orientation is set to 'locked', it will preserve the current orientation, else it will set whatever was requested in mScreenOrientation.