android - 服务不更新文本视图

Question

我正在开发的一个非常简单的 Android 应用程序有问题。这有点像足球记分牌。该活动由 3 个片段组成（2 个用于团队目标，1 个用于计时器），我有一个服务来执行倒计时。它似乎有效，但是当我旋转屏幕时，倒计时继续但它不会更新我的文本视图（称为“计时器”）。我正在发布片段、活动和服务的代码。如果有时代码有点乱，我很抱歉。

public class BoardActivity extends FragmentActivity implements BoardActivityCallback{

    public static final String TAG = "BoardActivity";
    public static final boolean D = true;

    public static final String TEAM_NAME1 = "TEAM_NAME1";
    public static final String TEAM_SCORE1 = "TEAM_SCORE1";
    public static final String TEAM_NAME2 = "TEAM_NAME2";
    public static final String TEAM_SCORE2 = "TEAM_SCORE2";
    public static final String HALF_TIME = "HALF_TIME";
    public static final String HALF_NUMBER = "HALF_NUMBER";
    public static final String OUT_TIME = "OUT_TIME";
    public static final String ROBOTS_NUMBER = "ROBOTS_NUMBER";

    public static final int CREATE_AND_START_TIMER = 0;
    public static final int GET_ACTIVITY_MESSENGER = 55;

    private TeamFragment teamFragment1;
    private TeamFragment teamFragment2;
    private TimerFragment timerFragment;
    private boolean isPlaying;

    //private TimeService timeService;
    private boolean isTimeServiceBound;
    private Messenger fromService = new Messenger(new MessagesFromTimeServiceHandler());
    private Messenger toService;
    private Message message;



    private ServiceConnection timeServiceConnection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            //timeService = ((TimeService.ServiceBinder)service).getService();
            //Toast.makeText(BoardActivity.this, "Service connected", Toast.LENGTH_SHORT).show();
            toService = new Messenger(service);
            Message msg = new Message();
            msg.what = GET_ACTIVITY_MESSENGER;
            try {
                toService.send(msg);
            } catch (RemoteException e) {
                e.printStackTrace();
            }
        }

        @Override
        public void onServiceDisconnected(ComponentName name) {
            //timeService = null;
            //Toast.makeText(BoardActivity.this, "Service disconnected", Toast.LENGTH_SHORT).show();
            toService = null;
        }
    };

    private void doBindTimeService(){
        Intent bindIntet = new Intent(BoardActivity.this,TimeService.class);
        //bindIntet.putExtra("Messenger", fromService);
        //bindIntet.putExtra("Halftime",getIntent().getStringExtra(HALF_TIME));
        bindService(bindIntet, timeServiceConnection, Context.BIND_AUTO_CREATE);
        //bindService(new Intent(BoardActivity.this,TimeService.class), timeServiceConnection, Context.BIND_AUTO_CREATE);
        isTimeServiceBound = true;
    }

    private void doUnbindTimeService(){
        if(isTimeServiceBound){
            unbindService(timeServiceConnection);
            isTimeServiceBound = false;
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.board);

        if(D) Log.d(TAG,"--- onCreate ---");


        teamFragment1 = (TeamFragment) getSupportFragmentManager().findFragmentById(R.id.teamFragment1);
        teamFragment2 = (TeamFragment) getSupportFragmentManager().findFragmentById(R.id.teamFragment2);
        timerFragment = (TimerFragment) getSupportFragmentManager().findFragmentById(R.id.timerFragment);
        Intent callingIntent = getIntent();

        if(teamFragment1 != null && teamFragment2 != null && timerFragment != null && callingIntent != null){

            teamFragment1.setColor(getResources().getColor(R.color.yellow));
            teamFragment2.setColor(getResources().getColor(R.color.blue));

            teamFragment1.setName(callingIntent.getStringExtra(TEAM_NAME1));
            teamFragment2.setName(callingIntent.getStringExtra(TEAM_NAME2));

            teamFragment1.setOutTime(callingIntent.getStringExtra(OUT_TIME));
            teamFragment2.setOutTime(callingIntent.getStringExtra(OUT_TIME));

//            timerFragment.setHalfTime(callingIntent.getStringExtra(HALF_TIME));
//            timerFragment.setHalfNumber(callingIntent.getStringExtra(HALF_NUMBER));

            try{
                teamFragment1.setScore(Integer.parseInt(callingIntent.getStringExtra(TEAM_SCORE1)));
                teamFragment2.setScore(Integer.parseInt(callingIntent.getStringExtra(TEAM_SCORE2)));

                String robotsNumberString = callingIntent.getStringExtra(ROBOTS_NUMBER);
                int robotsNumber = Integer.parseInt(robotsNumberString.substring(0, robotsNumberString.indexOf(' ')));
                teamFragment1.setRobotsNumber(robotsNumber);
                teamFragment2.setRobotsNumber(robotsNumber);

            }catch(NumberFormatException nfe){
                Log.e(TAG,nfe.getMessage());
            }
        }


    }

    @Override
    protected void onStart() {
        super.onStart();
        doBindTimeService();
        if(D) Log.d(TAG,"--- onStart ---");
    }

    @Override
    protected void onPause() {
        super.onPause();

        if(D) Log.d(TAG,"--- onPause ---");
    }

    @Override
    protected void onResume() {
        super.onResume();

        if(D) Log.d(TAG,"--- onResume ---");
    }

    @Override
    protected void onStop() {
        super.onStop();
        doUnbindTimeService();
        if(D) Log.d(TAG,"--- onStop ---");
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();

        if(D) Log.d(TAG,"--- onDestroy ---");
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        if(D) Log.d(TAG,"--- onConfigurationChanged ---");
    }

    @Override
    public void onSetPlaying(boolean isPlaying){
        this.isPlaying = isPlaying;
    }

    @Override
    public void onGoalScored() {
        if(teamFragment1 != null && teamFragment2 != null){
            teamFragment1.allRobotsInside();
            teamFragment2.allRobotsInside();
        }
    }

    private void notifyToService(int what, String obj){
        message = Message.obtain(null, what, obj);
        try {
            toService.send(message);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }



    @Override
    public void startTimer(){
        notifyToService(CREATE_AND_START_TIMER,getIntent().getStringExtra(HALF_TIME));
    }


    class MessagesFromTimeServiceHandler extends Handler {

        @Override
        public void handleMessage(Message msg) {
            switch(msg.what){
                case TimeService.CREATED_TIMER:
                    timerFragment.displayTime(TimerManager.timerFormat(Long.valueOf(msg.obj.toString())));
                    teamFragment1.setEditable(false);
                    teamFragment2.setEditable(false);
                    Log.d(TAG,"Timer creato");
                    break;
                case TimeService.START_TIMER:
                    teamFragment1.setEditable(true);
                    teamFragment2.setEditable(true);
                    //timeService.showTimerNotification();
                    break;
                case TimeService.UPDATE_TIMER:
                    Log.d(TAG,"Ricevuto dal service: "+TimerManager.timerFormat(Long.valueOf(msg.obj.toString())));
                    timerFragment.displayTime(TimerManager.timerFormat(Long.valueOf(msg.obj.toString())));
                    break;
                case TimeService.PAUSE_TIMER:
                    teamFragment1.setEditable(false);
                    teamFragment2.setEditable(false);
                    //timeService.cancelTimerNotification();
                    break;
                case TimeService.FINISH_TIMER:
                    Log.d(TAG,"Timer finito");
                    teamFragment1.setEditable(false);
                    teamFragment2.setEditable(false);
                    //timeService.cancelTimerNotification();
                    break;
                case 55:
                    Log.d(TAG,"Ricevuto dal Service: "+msg.obj.toString());
                    break;
                default:
                    super.handleMessage(msg);
            }
        }
    }
}


public class TimerFragment extends Fragment{

    private static final String TAG = "TimerFragment";
    private static final boolean D = true;

    private TextView timer;
    private TextView currentHalf;


    private BoardActivityCallback boardActivityCallback;


    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);

        try {
            boardActivityCallback = (BoardActivityCallback) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString()
                    + " must implement BoardActivityCallback");
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.timer,container,false);

        if(D) Log.d(TAG,"--- onCreateView ---");

        timer = (TextView)view.findViewById(R.id.timer);
        currentHalf = (TextView)view.findViewById(R.id.currentHalf);

        if(D) Log.d(TAG,"timer: "+timer.toString());

        timer.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                boardActivityCallback.startTimer();

            }
        });

        return view;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
    }

    @Override
    public void onStart() {
        super.onStart();
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
    }

    @Override
    public void onViewStateRestored(Bundle savedInstanceState) {
        super.onViewStateRestored(savedInstanceState);
    }

    @Override
    public void onPause() {
        super.onPause();
    }

    @Override
    public void onResume() {
        super.onResume();
    }


    public void setHalfNumber(String halfNumber){
        currentHalf.setText(halfNumber);
    }

    public void displayTime(String time){
        timer.setText(time);
    }

}

public class TimeService extends Service {

    private static final String TAG = "TimeService";
    private static final boolean D = true;

    private final IBinder serviceBinder = new ServiceBinder();
    private NotificationManager notificationManager;

    private static final int TIMER_NOTIFICATION = 1;

    private Messenger toActivity;
    private Message message;

    public static final int CREATED_TIMER = 0;
    public static final int START_TIMER = 1;
    public static final int UPDATE_TIMER = 2;
    public static final int PAUSE_TIMER = 3;
    public static final int FINISH_TIMER = 4;


    private CountDownTimer timer;

    private Messenger fromActivity = new Messenger(new IncomingHandler());

    public class ServiceBinder extends Binder {
        TimeService getService(){
            return TimeService.this;
        }
    }

    @Override
    public IBinder onBind(Intent intent) {

        if(D) Log.d(TAG,"--- onBind ---");

        //toActivity = intent.getParcelableExtra("Messenger");

        //timer = new CountDownTimer(TimerManager.minSecToMillis(intent.getStringExtra("Halftime")));


        //return serviceBinder;
        return fromActivity.getBinder();
    }

    @Override
    public void onCreate() {
        super.onCreate();

        if(D) Log.d(TAG,"--- onCreate ---");

        notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);

    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        if(D) Log.d(TAG,"--- onStartCommand ---");

        return START_STICKY;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        if(D) Log.d(TAG,"--- onDestroy ---");

        cancelTimerNotification();
    }

    @Override
    public boolean onUnbind(Intent intent) {
        if(D) Log.d(TAG,"--- onUnbind ---");
        return super.onUnbind(intent);

    }

    @Override
    public void onRebind(Intent intent) {
        super.onRebind(intent);
        if(D) Log.d(TAG,"--- onRebind ---");
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        if(D) Log.d(TAG,"--- onConfigurationChanged ---");
    }

    public void showTimerNotification(){
//        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, new Intent(this,BoardActivity.class), 0, null);


//        Notification notification = new Notification.Builder(this)
//                .setContentTitle(getResources().getString(R.string.app_name))
//                .setContentText("The teams are playing a match")
//                .setContentIntent(pendingIntent)
//                .setSmallIcon(R.drawable.ic_launcher)
//                .setWhen(0)
//                .build();

        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
                .setSmallIcon(R.drawable.ic_launcher)
                .setContentTitle("Titolo")
                .setContentText("Contenuto")
                .setWhen(0);

        NotificationCompat.InboxStyle inboxStyle =  new NotificationCompat.InboxStyle();
        String[] events = {"Line1","Line2","Line3","Line4"};
        inboxStyle.setBigContentTitle("Dettagli:");
        inboxStyle.setBigContentTitle("RoboSoccer Board");

        for (int i=0; i < events.length; i++) {

            inboxStyle.addLine(events[i]);
        }

        mBuilder.setStyle(inboxStyle);

        Notification notification = mBuilder.build();

        notification.flags |= Notification.FLAG_NO_CLEAR | Notification.FLAG_ONGOING_EVENT;

        notificationManager.notify(TIMER_NOTIFICATION, notification);
    }

    public void cancelTimerNotification(){
        if(notificationManager != null){
            notificationManager.cancel(TIMER_NOTIFICATION);
        }
    }

    private void notifyToBoard(int what, String obj){
        message = Message.obtain(null, what, obj);
        try {
            toActivity.send(message);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }

    public void countDown(){
        timer.startTimer();
    }

    class CountDownTimer extends Thread{

        private long actualMillis;
        private boolean isCountingDown;

        public CountDownTimer(long millis){
            actualMillis = millis;
            isCountingDown = false;
            notifyToBoard(CREATED_TIMER,String.valueOf(actualMillis));
        }

        @Override
        public void run(){
            notifyToBoard(START_TIMER,String.valueOf(actualMillis));
            try{
                do{
                    isCountingDown = true;
                    actualMillis -= 1000;
                    notifyToBoard(UPDATE_TIMER,String.valueOf(actualMillis));
                    Thread.sleep(1000);
                }while (isCountingDown && actualMillis > 0);
            }catch (InterruptedException ie){
                isCountingDown = false;
            }
            isCountingDown = false;
            notifyToBoard(FINISH_TIMER,String.valueOf(actualMillis));
        }


        public void startTimer(){
            if(!isCountingDown){
                this.start();
            }
        }

        public void pauseTimer(){
            this.interrupt();
            notifyToBoard(PAUSE_TIMER,String.valueOf(actualMillis));
        }

        public void stopTimer(){
            this.interrupt();
            actualMillis = 0;
        }

    }

    class IncomingHandler extends Handler {

        @Override
        public void handleMessage(Message msg) {
            switch (msg.what){
                case BoardActivity.GET_ACTIVITY_MESSENGER:
                    toActivity = msg.replyTo;
                    break;
                case BoardActivity.CREATE_AND_START_TIMER:
                    //Log.d(TAG,"Ricevuto dall'Activity: "+msg.obj.toString());
                    //notifyToBoard(55,"Timer avviato");
                    timer = new CountDownTimer(TimerManager.minSecToMillis(msg.obj.toString()));
                    timer.startTimer();
                    break;
                default:
                    super.handleMessage(msg);
            }
        }
    }
}