Runnable

public Runnable mUpdate = new Runnable() {
        public void run() {
            while (true) {
                synchronized (this) {
                    try {
                        wait();
                    } catch (InterruptedException e) {

                        e.printStackTrace();
                    }
                }
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        drawPlaces();
                    }
                });
            }
        }
    };