Update TextView every second in Android [duplicate]

Answer 1

Using handler can be used like this

TextView timer;
    int m =0;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        timer=(TextView) findViewById(R.id.timerText);
        Handler handler = new UpdateHandler();

        m = 10;
        handler.sendEmptyMessageDelayed(1, 1000);//start after 1000
    }


    class UpdateHandler extends Handler{
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            switch (msg.what) {
            case 1:
                timer=(TextView) findViewById(R.id.timerText);
                timer.setText("Text :" +m);
                m = m-1000;
                sendEmptyMessageDelayed(1, 1000); //seng again after 1000
                //add some stop logic
                break; 

            default:
                break;
            }

        }
    }