Thread傳自訂Message到Handler

        new Thread(new Runnable() {
            @Override
            public void run() {
                Message message;
                String obj = "OK";
                message = handler.obtainMessage(1, obj);
                handler.sendMessage(message);
            }
        }).start();

依不同message做後續處理

    private Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            String MsgString = (String) msg.obj;
            if (MsgString.equals("OK")) {
                //do something
            }
        }
    };