Prepare to Project android to Control arduino

https://developer.android.com/guide/topics/ui/controls/togglebutton.html
http://androidcontrol.blogspot.co.id/2014/06/arduino-control-rgb-leds-via-bluetooth.html

ToggleButton toggle = (ToggleButton) findViewById(R.id.togglebutton);
toggle.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        if (isChecked) {
            // The toggle is enabled
        } else {
            // The toggle is disabled
        }
    }
});