Jude

@Override
public void onBackPressed() {
    if( getValue == SAVE_COMPLETE ){
        Intent intent = new Intent(Message.this, Memo.class);
        startActivity(intent);
    }else{
        finish();
    }
    return;
}

@Override
public boolean onKeyDown(int keyCode, KeyEvent event)  {
    if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
        if( getValue == SAVE_COMPLETE ){
            Intent intent = new Intent(Message.this, Memo.class);
            startActivity(intent);
        }else{
            finish();
        }
        return true;
    }

    return super.onKeyDown(keyCode, event);
}