EditText switch inputtype mode

Hi, I have an alphanumeric EditText. The input is like this: Pos 1,2 is char Pos 3,4 is number Pos 5 is fixed / Pos 6,7,8,9 is number Pos 10 is fixed / Pos 11 is char Pos 12,13,14 is number

Example inpout: PF01/0110/A283 look picture

So I would like to switch keyboard from alphabetical to number programmatically

Thanks