ToggleButton Example

ToggleButton : Displays checked/unchecked states as a button with a “light” indicator and by default accompanied with the text “ON” or “OFF”.

final ToggleButton btn = (ToggleButton) findViewById(R.id.toggleButton1);
        btn.setOnClickListener(new View.OnClickListener() {

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				if(btn.isChecked())
				{
                                 //Do something
				}else
				{
					//Do Something else
				}}});

External Reference: http://developer.android.com/reference/android/widget/ToggleButton.html