on softkeyboard, which one is better to give user a visual feedback during keypress:
1.redraw portion of button that was pressed to background canvas of main View to give pressed effect
2.each button has its own "pressed" View, and that View is set to visible (flashing) during keypress event (so no redraw needed but need more memory)
I know its trade-off between speed and memory usage, but I just want to know what you will do under this situation.