Click on notification not launching the app

Question

When push notification is received while the app is not running and the user presses on notification, it just disappears and the log says:

2019-10-22 12:42:45.747 23260-23260/de.app.test.staging E/FirebaseMessaging: Notification pending intent canceled

Here is the SplashActivity that is supposed to be launched as a Launcher Activity:

    <activity
        android:name="de.app.test.login.SplashActivity"
        android:screenOrientation="portrait"
        android:exported="true"
        android:theme="@style/Theme.AppCompat.Light.NoActionBar.FullScreen">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

What can the issue be here?

Tried adding exported to true as you can see, but that didn't help. — Sava Dimitrijević, Oct 22 '19 at 10:46
and is this issue only occuring on PIE. Or may be you haven't configure firebase messaging in manifest — Zar E Ahmer, Oct 22 '19 at 10:55
Can't try on device below Pie right now, will see during the day. — Sava Dimitrijević, Oct 22 '19 at 11:03

score 8 · Accepted Answer · answered Oct 23 '19 at 13:10

For anyone looking for an answer, the back-end was sending the "click_action" to notification, therefore there was no intent filter for that Activity.

For me the click_action is "OPEN_ACTIVITY_1" so I just added one more intent-filter to my SplashActivity like this:

<intent-filter>
        <action android:name="OPEN_ACTIVITY_1" />
        <category android:name="android.intent.category.DEFAULT" />
</intent-filter>

majid ghafouri · Answer 2 · 2019-10-22T11:53:16.913

0

Forground app:

You need a PendingIntent to open app.

Try this:

NotificationManager notificationManager = (NotificationManager) context
        .getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);

Intent notificationIntent = new Intent(context, SplashActivity.class);

notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
        | Intent.FLAG_ACTIVITY_SINGLE_TOP);

PendingIntent intent = PendingIntent.getActivity(context, 0,
        notificationIntent, 0);

notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notificationManager.notify(0, notification);

If Activity is in background or closed then notification message is shown in the notification center for app launcher activity.

You can use a BroadcastReceiver class. When you close the app, broadcast can listen this action. So, if you create a BroadcastReceiver class, you don't take this problem.

public class ClosedBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            context.startForegroundService(new Intent(context, HomePage.class));
        } else {
            context.startService(new Intent(context, HomePage.class));
        }
    }
}

More Information:

https://firebase.google.com/docs/cloud-messaging/android/receive

edited Oct 22 '19 at 11:53

answered Oct 22 '19 at 10:54

majid ghafouri

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That's when the app is in foreground, that works. The issue is while the app is in background (no process running). – Sava Dimitrijević Oct 22 '19 at 11:02
You are right. The answer is edited. @SavaDimitrijević – majid ghafouri Oct 22 '19 at 11:09
Thank you for answering, however that is the issue. The launcher activity is not launching at all, and the log says "Notification pending intent canceled" – Sava Dimitrijević Oct 22 '19 at 11:11
Where would I register this broadcast and why is it only if the device is above Oreo? – Sava Dimitrijević Oct 22 '19 at 13:01
Please refer to this link https://stackoverflow.com/questions/15698790/broadcast-receiver-for-checking-internet-connection-in-android-app/44881551#44881551 – majid ghafouri Oct 23 '19 at 04:50
I understand the principle of BroadcastReceiver , but since the app is not launching at all upon notification click, this cannot work. – Sava Dimitrijević Oct 23 '19 at 07:38

score 0 · Answer 3 · answered Oct 22 '19 at 11:03

you need to set pendingIntent object in notificationBuilder instance like

 mBuilder = new NotificationCompat.Builder(this, CHANNEL_ID);
    Intent intent = new Intent(context, TargetActivity.class));
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
    builder.setContentIntent(pendingIntent);

Please note that CHANNEL_ID is for build version greater or equal to Oreo

   if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        CHANNEL_ID = createNotificationChannel(CHANNEL_ID, "channelName");
    }


  @RequiresApi(Build.VERSION_CODES.O)
private String createNotificationChannel(String channelId, String channelName) {
    // Create the NotificationChannel, but only on API 26+ because
    // the NotificationChannel class is new and not in the support library

    String description = "description";

    NotificationChannel channel = new NotificationChannel(channelId, channelName, NotificationManager.IMPORTANCE_NONE);
    channel.setLightColor(Color.BLUE);
    channel.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
    channel.setDescription(description);
    // Register the channel with the system; you can't change the importance
    // or other notification behaviors after this
    mNotificationManager.createNotificationChannel(channel);
    return channelId;

}

That's when the app is in foreground, that works. The issue is while the app is in background (no process running). — Sava Dimitrijević, Oct 22 '19 at 11:05

Click on notification not launching the app

3 Answers3