public void SetMainButtonChecked(boolean checked) {
ToggleButton buttonOnOff = (ToggleButton) findViewById(R.id.buttonOnOff);
buttonOnOff.setChecked(checked);
}
public void toggleConnection(View view) {
ToggleButton tb = (ToggleButton) view;
if (tb.isChecked()) tb.setChecked(connect(view));
else disconnect(view);
}