Android Oreo battery optimization causes delays in FCM

Question

I implemented FCM in the same way as the documentation if it says:

I have such a service public class TCMessagingService extends FirebaseMessagingService

And I declared it in the manifest like this:

<service android:name=".services.TCMessagingService">
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT" />
            </intent-filter>
</service>

I am targeting and compiling with an SDK level of 25, and my version of firebase is 10.2.1.

Now the problem is that on Android 8.0 sometimes I have big delays when I receive push notifications. it may come in a few minutes. But this is not always the case, sometimes everything works the same as expected, push notifications arrived very quickly.

I tried updating the FCM version to the latest, but that didn't help.

But when in the settings I turn off battery optimization for my application, everything works fine. But this is not a solution. What can I do to make FCM work expected on Android 8.0?

Answer 1

.

push- Android 8, compileSdkVersion 25

classpath 'com.google.gms:google-services:3.1.0' 

gradle.

, , -

Answer 2

, . , FCM "".

Firebase FCM .

Answer 3

:

• 26
• 26.0.2

• google: 11.0.4

• :

  compile 'com.firebase: firebase-jobdispatcher: 0.5.2'

• firebase :

  classpath 'com.google.gms: google-services: 3.1.0'

• google gradle

  allprojects {repositories {Google () jcenter ()}}

• In your java track, the notification manager is created in a different way in Android O:

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
           NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
           String id = "id_product";
           // The user-visible name of the channel.
           CharSequence name = "Product";
           // The user-visible description of the channel.
           String description = "Notifications regarding our products";
           int importance = NotificationManager.IMPORTANCE_MAX;
           NotificationChannel mChannel = new NotificationChannel(id, name, importance);
           // Configure the notification channel.
           mChannel.setDescription(description);
           mChannel.enableLights(true);
           // Sets the notification light color for notifications posted to this
           // channel, if the device supports this feature.
           mChannel.setLightColor(Color.RED);
           notificationManager.createNotificationChannel(mChannel);
        }
  

You can find the full code in this link .