Your logcat says android.view. WindowManager$BadTokenException which means you are passing invalid Context somewhere.
Using a spinner is easy and simple. I will tell you step by step 1. Take that spinner on your layout or add it dynamically.
Like below Spinner brand=new Spinner; and fix it on any layout but if you add this statically on your layout then do this brand=(Spinner)findViewById(R.id. Brand).
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.