Android why this button is not clickable?

I think your XML design is OK in all ways so problem is most likely in Java . Most likely you forgot to register OnClickListener for your Button(s) .

Replace your onClick() method with below one and let us know about logcat. It seems you are trying to show toast but missing .show() method to show the toast. Try below code and let us know.

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.