android - Opacity/Translucent Canvas - I want to see the activity background "through" the canvas -

android - Opacity/Translucent Canvas - I want to see the activity background "through" the canvas -

sorry bad english. in ondraw, want set canvas color "transparent" : want see activity's background behind through canvas.

that's exemple of want: http://cdn.makeuseof.com/wp-content/uploads/2014/02/flow-free-levels.png?35dc20

thank help.

you can this:

@override public void ondraw(canvas canvas) { canvas.savelayeralpha(0, 0, canvas.getwidth(), canvas.getheight(), 0x66, canvas.has_alpha_layer_save_flag); super.ondraw(canvas); }

android canvas colors paint opacity