How to create layout with 6 buttons like windows tiles

Question

I\'m trying to create a layout with 6 buttons that automatically adapt to the screen size as the tiles of windows phone. In the code I create dynamically the 6 button, 2 for

Answer 1

I am using the Android .v7 libraries. This xml worked for me to create the 2 columns, 3 rows layout that fills the entire screen: