Simple android app

I need an Android app. I need someone to develop an android app using android studio. The app is simple and the focus is to help me develop the layout. There are 4 bottom tabs "A", "B" ,"C","D". On clicking "A" tab, i want a scrollable image gallery, 1 image in each row, max width. pull down to refresh. On clicking "b" tab, i want a scrollable listing with icon on left. pull down to refresh. On clicking "c" tab, i want a button right at the centre. On clicking "d" tab, I want a listing.