The Toast msg does't show

I made a button in a 1st page to link to 2nd page, this 2nd page have (A, G, S, J, R) on each line and there should be a Toast message (Sorted alphabetically inside) in the same 2nd page, the problem is, it doesnt show that Toast message. I just dont know what xml shall I type it

public void onClick(View arg0) {
    Toast.makeText(this, "Sorted alphabetically inside", 10000).show();

And here is the picture: http://ift.tt/1l9S4EC