how to make a clock on android

Question

Java

While not strong in programming, please tell me how to make a clock so that it goes?
Tried Date and through SimpleDateFormat displayed on TextView. But how to make them update themselves? It is impossible to cram into the cycle, the Application does not start .. Who knows how to do this, tell me please .. And they will need to be run in a separate thread, do I understand correctly?

Answer 1

There are many options. It is possible through Handler

private Handler TimeHandler = new Handler() {
        @Override
        public void handleMessage(Message message) {
           //Обновляем часы
           TimeHandler.sendEmptyMessageDelayed(0,1000L);//1 sec update
        }
    };

you need to start it manually for the first time: TimeHandler.sendEmptyMessageDelayed(0,10L);