I found a bug in videoplayback sample app. After detecting the target when the video is getting played, I double on the screen to play video in full screen. When the video is playing in full screen, I press lock screen and then unlock the screen. After doing this, the screen is stuck and mediacontroller is not seen. I checked that media controller is becoming null.
It seems onVideoSizeChanged is not getting called. Please help me in fixing this bug.