public class HandlerThreadActivity extends AppCompatActivity {
    private TextView      mTvServiceInfo;
    private HandlerThread mCheckMsgThread;
    private Handler       mCheckMsgHandler;
    private boolean       isUpdateInfo;
    private static final int MSG_UPDATE_INFO = 0x110;

    //与UI线程相关的handler
    private Handler mHandler = new Handler();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_thread_handler);
        initBackThread();//创建后台线程
        mTvServiceInfo = (TextView) findViewById(R.id.id_textview);
    }

    @Override
    protected void onResume() {
        super.onResume();
        isUpdateInfo = true;//开始查询
        mCheckMsgHandler.sendEmptyMessage(MSG_UPDATE_INFO);
    }

    @Override
    protected void onPause() {
        super.onPause();
        isUpdateInfo = false;//停止查询
        mCheckMsgHandler.removeMessages(MSG_UPDATE_INFO);
    }

    private void initBackThread() {
        mCheckMsgThread = new HandlerThread("check-message-coming");
        mCheckMsgThread.start();
        mCheckMsgHandler = new Handler(mCheckMsgThread.getLooper()) {
            @Override
            public void handleMessage(Message msg) {
                checkForUpdate();
                if (isUpdateInfo) {
                    mCheckMsgHandler.sendEmptyMessageDelayed(
                            MSG_UPDATE_INFO, 1000);
                }
            }
        };
    }

    //模拟从服务器解析数据
    private void checkForUpdate() {
        Thread.sleep(1000);//模拟耗时
        mHandler.post(new Runnable() {
            @Override
            public void run() {
                String result = "msg";
                mTvServiceInfo.setText(result);
            }
        });
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        mCheckMsgThread.quit();//释放资源
    }
}

public class HandlerThread extends Thread {
    int mPriority;
    int mTid = -1;
    Looper mLooper;

    public HandlerThread(String name) {
        super(name);
        mPriority = Process.THREAD_PRIORITY_DEFAULT;
    }
    
    public HandlerThread(String name, int priority) {
        super(name);
        mPriority = priority;
    }
    
    protected void onLooperPrepared() {
    }

    @Override
    public void run() {
        mTid = Process.myTid();
        Looper.prepare();
        synchronized (this) {
            mLooper = Looper.myLooper();
            notifyAll();
        }
        Process.setThreadPriority(mPriority);
        onLooperPrepared();
        Looper.loop();
        mTid = -1;
    }
    
    public Looper getLooper() {
        if (!isAlive()) {
            return null;
        }
        
        // If the thread has been started, wait until the looper has been created.
        synchronized (this) {
            while (isAlive() && mLooper == null) {
                try {
                    wait();
                } catch (InterruptedException e) {
                }
            }
        }
        return mLooper;
    }

    public boolean quit() {
        Looper looper = getLooper();
        if (looper != null) {
            looper.quit();
            return true;
        }
        return false;
    }

    public boolean quitSafely() {
        Looper looper = getLooper();
        if (looper != null) {
            looper.quitSafely();
            return true;
        }
        return false;
    }

    public int getThreadId() {
        return mTid;
    }
}