Back key to pop the Fragment shows overlapping fragments?

If you perform two add calls one after the other (two commit calls) then yes the fragments will appear overlaid, one on top of the other effectively.

Just override the onBackPress() or onKeyUp and remove the top fragment.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.