Firebase通知：单击状态栏通知时，活动不会启动

Question

I'm currently experiencing the following problem:

1. I've implemented custom FirebaseMessagingService and the method onMessageReceived() is overriden. Also when the app is in background i get the bundle from getExtras().
2. I need the notification content in order to save it locally in db.

What happens:

1. Send 3 notifications from Firebase console when the app is in background
2. 3 status bar notifications are created.
3. Click on one of them -> launcher activity is opened and the content from the notification is saved.
4. Click on the other status bar notifications (when the app is still in foreground) -> nothing happens...

Could you please help?

Launcher Activity code:

if (getIntent().getExtras() != null) {
        Bundle extras = getIntent().getExtras();
        String title = (String) extras.get(Constants.TOPIC_KEY_TITLE);
        String imageUrl = (String) extras.get(Constants.TOPIC_KEY_IMAGE_URL);
        String url = (String) extras.get(Constants.TOPIC_KEY_URL);
        String description = (String) extras.get(Constants.TOPIC_KEY_DESCRIPTION);
        Long sentTime = (Long) extras.get(Constants.TOPIC_KEY_SENT_TIME);

        if (Util.isStringsNotNull(description)) {
            News news = new News();
            news.setTitle(title);
            news.setMessage(description);
            news.setDescription(description);
            news.setImageUrl(imageUrl);
            news.setUrl(url);
            news.setDate(sentTime);
            news.save();

            EventBus.getDefault().post(new OnNewsUpdatedEvent(news));
            AppPreferences.incrementUnseenNewsCount(this);
        }
    }

    String action = getIntent().getAction();

    if (Util.isStringNotNull(action) && action.equals(ACTION_SEARCH)) {
        startActivity(MainActivity.getIntentActionSearch(this));
    } else {
        startActivity(MainActivity.getIntent(this));
    }

Custom FirebaseMessagingService code:

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    LogUtil.log(BASIC_TAG, "onMessageReceived called!");

    String description = null;
    String imageUrl = null;
    String url = null;
    String title = null;

    Map<String, String> dataMap = remoteMessage.getData();
    if (dataMap != null && !dataMap.isEmpty()) {
        description = dataMap.get(Constants.TOPIC_KEY_DESCRIPTION);
        imageUrl = dataMap.get(Constants.TOPIC_KEY_IMAGE_URL);
        url = dataMap.get(Constants.TOPIC_KEY_URL);
        title = dataMap.get(Constants.TOPIC_KEY_TITLE);
    }

    if (Util.isStringNotNull(description)) {
        RemoteMessage.Notification notification = remoteMessage.getNotification();

        News news = new News();
        news.setDate(remoteMessage.getSentTime());
        news.setTitle(Util.isStringNotNull(title) ? title : notification.getTitle());
        news.setMessage(notification.getBody());
        news.setDescription(description);
        news.setImageUrl(imageUrl);
        news.setUrl(url);
        news.save();

        EventBus.getDefault().post(new OnNewsUpdatedEvent(news));
        AppPreferences.incrementUnseenNewsCount(this);
    }
}

Answer 1

I'm going to assume you have your launcher activity code in the onCreate() method of your activity. Once the activity is created and you click another notification the onCreate() will not be called again.

What you need to do to update the activity that is already visible to the user is override the onNewIntent(Intent intent) method of the activity in which the data is displayed and update your views there.