Android 8.1 screen orientation issue: flipping to landscape a portrait screen

Just came across this problem in my own app.

The solution that works for me is as follows:

onCreate(){
   setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE);
}

onPause(){ 
  if (android.os.Build.VERSION.SDK_INT >= 27) {
         setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT);
  }
}

onResume(){
  if (android.os.Build.VERSION.SDK_INT >= 27) {
         setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE);
  }
}

The above code should go in the activity that is in landscape mode (i.e. the second activity, and the one you press the back button from)

I would like to point out that this solution was not my own, and I have taken it from the #20 post at the following link (which is also noted in the OP):

https://issuetracker.google.com/issues/69168442

I just thought it might be easier for people to access if they don’t have to search another page for it.