使用標簽頁時，通知未在Android中顯示

Question

我正在編寫一個應用程序，其中我使用兩個選項卡，一個用於獲取facebook朋友列表，第二個用於獲取電話簿朋友列表

在“電話簿”的“朋友”選項卡中，我也得到了朋友的生日，並為此顯示了提醒，並且如果我單獨嘗試也可以得到提醒，而無需將其組合到另一個選項卡中（即：使用Facebook標簽）

這意味着一旦我將其合並到選項卡中，那么我就不會收到任何生日通知。

我正在使用下面的課程來獲取電話簿朋友生日的通知：

   public class BirthdayReminder extends ListActivity {
// TODO: call/write message on birthday
// TODO: hideNotificationPref

private final DateFormatSymbols dateSymbols = new DateFormatSymbols();

private Database db;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getListView().setFastScrollEnabled(true);

    this.db = new Database(getContentResolver());

    // debug code
    // Debug.logDatabase(this);

    // start BirthdayBroadcastReceiver if it is activated
    Preferences prefs = Preferences.getInstance(getApplicationContext());
    if (prefs.getActivateService()) {
        BirthdayBroadcastReceiver.restart(getApplicationContext());
    }
}

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

    updateView();
}

private void updateView() {
    // create new list adapter
    MultiListAdapter listAdapter = new MultiListAdapter();
    List<ListAdapter> adapterList = listAdapter.getListAdapters();

    // load birthday and contact information
    List<Contact> contacts = this.db.getAllContacts();
    List<BirthContact> birthContacts = BirthContactHelper.createBirthContactList(contacts);

    // group all contacts by known and unknown birthday
    SortedSet<BirthContact> knownBirthdays = new TreeSet<BirthContact>(new BirthContactBirthdayComparator());
    SortedSet<BirthContact> unknownBirthdays = new TreeSet<BirthContact>(new BirthContactNameComparator());

    for (BirthContact birthContact : birthContacts) {
        DateOfBirth dateOfBirth = birthContact.getDateOfBirth();

        if (dateOfBirth != null) {
            knownBirthdays.add(birthContact);
        } else {
            unknownBirthdays.add(birthContact);
        }
    }

    Integer currentMonth = null;
    BirthContactAdapter currentBirthContactAdapter = null;
    String[] monthStrs = this.dateSymbols.getMonths();
    for (BirthContact birthContact : knownBirthdays) {
        int month = birthContact.getDateOfBirth().getDate().get(Calendar.MONTH);

        if (currentMonth == null || currentMonth != month) {
            currentMonth = month;

            currentBirthContactAdapter = new BirthContactAdapter(this);
            adapterList.add(new CategoryAdapter(this, monthStrs[currentMonth]));
            adapterList.add(currentBirthContactAdapter);
        }

        currentBirthContactAdapter.add(birthContact);
    }

    adapterList.add(new CategoryAdapter(this, getResources().getString(R.string.unknownBirthdays)));
    adapterList.add(new BirthContactAdapter(this, unknownBirthdays));

    setListAdapter(listAdapter);
}

@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
    BirthContact birthContact = (BirthContact) l.getAdapter().getItem(position);

    Intent editorIntent = new Intent(this, BirthdayEditor.class);
    editorIntent.putExtra(BirthdayEditor.CONTACT_ID, birthContact.getContact().getId());
    startActivity(editorIntent);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.layout.menu, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle item selection
    switch (item.getItemId()) {
    case R.id.preferences:
        startActivity(new Intent(this, PreferenceWindow.class));
        return true;
    case R.id.quit:
        finish();
        return true;
    default:
        return super.onOptionsItemSelected(item);
    }
}
   }

我使用下面的代碼在單擊特定選項卡時調用兩個不同的類。

但是每當我將其更改為tab時，我都不會收到任何通知TabSample.java：

public class TabSample extends TabActivity {

String response;
@SuppressWarnings("unused")
private static JSONArray jsonArray;
public static TabHost mTabHost;

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    Bundle extras = getIntent().getExtras();
    if (extras == null) {
        return;
    }
    response = getIntent().getStringExtra("FRIENDS");
    try {
        jsonArray = new JSONArray(response);
    } catch (JSONException e) {
        FacebookUtility.displayMessageBox(this,
        this.getString(R.string.json_failed));
    }
    setTabs();


}
private void setTabs() {
    addTab("", R.drawable.tab_menu, com.chr.tatu.sample.friendslist.facebook.FriendsList.class);
    addTab("", R.drawable.tab_contact, com.chr.tatu.sample.friendslist.contacts.BirthdayReminder.class);


}

通知：

   public class BirthdayBroadcastReceiver extends BroadcastReceiver {

private static final String TIMED = "timed";

@Override
public void onReceive(Context context, Intent intent) {
    if (intent.getBooleanExtra(TIMED, false)) {
        notifyBirthdays(context);
    }

    start(context);
}

private static PendingIntent createPendingIntent(Context context) {
    Intent intent = new Intent(context, BirthdayBroadcastReceiver.class);
    intent.putExtra(TIMED, true);
    return PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
}

public static void start(Context context) {
    AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
    PendingIntent pendingIntent = createPendingIntent(context);

    Preferences prefs = Preferences.getInstance(context);
    Time nextUpdateTime = prefs.getUpdateTime();

    Calendar wakeUpCal = Calendar.getInstance();
    wakeUpCal.set(Calendar.HOUR_OF_DAY, nextUpdateTime.getHours());
    wakeUpCal.set(Calendar.MINUTE, nextUpdateTime.getMinutes());
    wakeUpCal.set(Calendar.SECOND, wakeUpCal.getActualMinimum(Calendar.SECOND));
    wakeUpCal.set(Calendar.MILLISECOND, wakeUpCal.getActualMinimum(Calendar.MILLISECOND));

    if (wakeUpCal.before(Calendar.getInstance())) {
        wakeUpCal.add(Calendar.DAY_OF_MONTH, 1);
    }

    alarmManager.set(AlarmManager.RTC_WAKEUP, wakeUpCal.getTimeInMillis(), pendingIntent);
}

public static void stop(Context context) {
    AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
    PendingIntent pendingIntent = createPendingIntent(context);
    alarmManager.cancel(pendingIntent);
    pendingIntent.cancel();
}

public static void restart(Context context) {
    stop(context);
    start(context);
}

private void notifyBirthdays(Context context) {
    Calendar today = CalendarUtils.todaysCalendar();
    Database db = new Database(context.getContentResolver());

    Preferences prefs = Preferences.getInstance(context);
    NotificationManager notificationManager = (NotificationManager) context
            .getSystemService(Context.NOTIFICATION_SERVICE);
    Resources res = context.getResources();

    List<Contact> contacts = db.getAllContacts();

    // calculate next birthdays
    SortedMap<Integer, List<String>> nextBirthdays = new TreeMap<Integer, List<String>>();
    for (Contact contact : contacts) {
        Integer timeSpanToNextBirthday = null;
        for (RawContact rawContact : contact.getRawContacts()) {
            for (DateOfBirth dateOfBirth : rawContact.getDatesOfBirth()) {
                int timeSpan = CalendarUtils.timeSpanToNextBirthday(today, dateOfBirth.getDate());

                if (timeSpanToNextBirthday == null || timeSpanToNextBirthday > timeSpan) {
                    timeSpanToNextBirthday = timeSpan;
                }
            }
        }

        if (timeSpanToNextBirthday != null && timeSpanToNextBirthday <= prefs.getDaysBeforeReminder()) {
            List<String> infoNames = nextBirthdays.get(timeSpanToNextBirthday);
            if (infoNames == null) {
                infoNames = new ArrayList<String>();
                nextBirthdays.put(timeSpanToNextBirthday, infoNames);
            }
            infoNames.add(contact.getName());
        }
    }

    // collect all sentences for the notification
    List<String> notificationTexts = new ArrayList<String>();
    int countBirthdays = 0;
    for (Integer days : nextBirthdays.keySet()) {
        List<String> birthdayList = nextBirthdays.get(days);
        String names = StringUtils.join(birthdayList, ", ").toString();
        notificationTexts.add(getBirthdayText(res, days, names));
        countBirthdays += birthdayList.size();
    }

    // cancel all notifications (clear old once)
    notificationManager.cancelAll();

    // create new notification
    if (notificationTexts.size() > 0) {
        String titleText = String.format(res.getQuantityString(R.plurals.notificationTitle, countBirthdays),
                countBirthdays);
        Intent intent = new Intent(context, BirthdayReminder.class);
        Notification notification = new Notification(R.drawable.balloons2, titleText, System.currentTimeMillis());
        if (countBirthdays > 1) {
            notification.number = countBirthdays;
        }
        PendingIntent pi = PendingIntent.getActivity(context, 0, intent, Intent.FLAG_ACTIVITY_NEW_TASK);
        notification.setLatestEventInfo(context, titleText, StringUtils.join(notificationTexts, ", "), pi);
        notificationManager.notify(0, notification);
    }
}

private String getBirthdayText(Resources res, int days, String names) {
    String text;
    switch (days) {
    case 0:
        text = String.format(res.getString(R.string.notificationText_today), names);
        break;
    case 1:
        text = String.format(res.getString(R.string.notificationText_tomorrow), names);
        break;
    default:
        text = String.format(res.getString(R.string.notificationText_other), days, names);
    }
    return text;
}
  }

Answer 1

您是否在Notifications Service類中使用了正確的程序包名稱，例如幾個月前我進行了相同類型的項目，而我卻在同一個動作中掙扎，而當我遇到錯誤時，這簡直是愚蠢的：

這是正確的方法：

    <receiver android:name="packagename.BirthdayBroadcastReceiver" >
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
        </intent-filter>
    </receiver>