CODEWITHSUNDEEP
androidandroid-notificationsandroid-8.0-oreo
itzhar
itzhar

Reputation: 13031

How do I check whether a specific notification channel is enabled in Android Oreo?

I'm using the following call to check whether notifications are enabled:

NotificationManagerCompat.from(getContext()).areNotificationsEnabled()

However, if a user disables only the channel, I cannot know about it.

How do I check whether a specific notification channel is enabled?

Screenshot of Notifications screen in Settings

Upvotes: 44

Views: 23351

Answers (8)

thirtyyuan
thirtyyuan

Reputation: 643

Here is my full code:

public static boolean isNotificationChannelEnabled(@NonNull String groupId, @NonNull String... channelIds) {
    boolean appNotificationEnable = NotificationManagerCompat.from(AppContext.getContext()).areNotificationsEnabled();
    if (!appNotificationEnable) {
        return false;
    }

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationManager manager = (NotificationManager) AppContext.getContext().getSystemService(Context.NOTIFICATION_SERVICE);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
            List<NotificationChannelGroup> groupList = manager.getNotificationChannelGroups();
            for (NotificationChannelGroup group : groupList) {
                if (TextUtils.equals(group.getId(), groupId)) {
                    if (group.isBlocked()) {
                        return false;
                    }
                }
            }
        }

        for (String channelId : channelIds) {
            NotificationChannel channel = manager.getNotificationChannel(channelId);
            if (channel != null && channel.getImportance() == NotificationManager.IMPORTANCE_NONE) {
                return false;
            }
        }
        return true;
    }

    return false;
}

Upvotes: 3

kike
kike

Reputation: 4463

Just an implementation in Kotlin taking into account areNotificationsEnabled (For API level >= 26).

@TargetApi(Build.VERSION_CODES.O)
private fun isNotificationChannelEnabled(channelId: String): Boolean {
    val manager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
    return if (manager.areNotificationsEnabled()){
      val channel = manager.getNotificationChannel(channelId)
      channel.importance != NotificationManager.IMPORTANCE_NONE
    } else false
  }

Upvotes: 0

ditn
ditn

Reputation: 1436

Check out the docs here.

Users can modify the settings for notification channels, including behaviors such as vibration and alert sound. You can call the following two methods to discover the settings a user has applied to a notification channel:

To retrieve a single notification channel, you can call getNotificationChannel(). To retrieve all notification channels belonging to your app, you can call getNotificationChannels(). After you have the NotificationChannel, you can use methods such as getVibrationPattern() and getSound() to find out what settings the user currently has. To find out if a user blocked a notification channel, you can call getImportance(). If the notification channel is blocked, getImportance() returns IMPORTANCE_NONE.

Upvotes: 35

Max Droid
Max Droid

Reputation: 963

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            if(NotificationManagerCompat.from(context).areNotificationsEnabled()) {
                for (String channelId : channelIds) {
                    if (!TextUtils.isEmpty(channelId)) {
                        NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
                        if (manager != null) {
                            NotificationChannel channel = manager.getNotificationChannel(channelId);
                            if (channel.getImportance() == NotificationManager.IMPORTANCE_NONE)
                                return false;
                        }
                    }
                }
                return true;
            }else return false;
        }else{
            return NotificationManagerCompat.from(context).areNotificationsEnabled();
        }

Upvotes: 0

Florian Walther
Florian Walther

Reputation: 6971

Use this to check if either the notifications overall or the channels are disabled and bring the user to the corresponding settings:

In the calling method:

if (!notificationManager.areNotificationsEnabled()) {
        openNotificationSettings();
        return;
    }

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O &&
            isChannelBlocked(CHANNEL_1_ID)) {
        openChannelSettings(CHANNEL_1_ID);
        return;
    }

In your class:

private void openNotificationSettings() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        Intent intent = new Intent(Settings.ACTION_APP_NOTIFICATION_SETTINGS);
        intent.putExtra(Settings.EXTRA_APP_PACKAGE, getPackageName());
        startActivity(intent);
    } else {
        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
        intent.setData(Uri.parse("package:" + getPackageName()));
        startActivity(intent);
    }
}

@RequiresApi(26)
private boolean isChannelBlocked(String channelId) {
    NotificationManager manager = getSystemService(NotificationManager.class);
    NotificationChannel channel = manager.getNotificationChannel(channelId);

    return channel != null &&
            channel.getImportance() == NotificationManager.IMPORTANCE_NONE;
}

@RequiresApi(26)
private void openChannelSettings(String channelId) {
    Intent intent = new Intent(Settings.ACTION_CHANNEL_NOTIFICATION_SETTINGS);
    intent.putExtra(Settings.EXTRA_APP_PACKAGE, getPackageName());
    intent.putExtra(Settings.EXTRA_CHANNEL_ID, channelId);
    startActivity(intent);
}

Upvotes: 12

itzhar
itzhar

Reputation: 13031

with backwards compatibility:

public boolean isNotificationChannelEnabled(Context context, @Nullable String channelId){
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            if(!TextUtils.isEmpty(channelId)) {
                NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
                NotificationChannel channel = manager.getNotificationChannel(channelId);
                return channel.getImportance() != NotificationManager.IMPORTANCE_NONE;
            }
            return false;
        } else {
            return NotificationManagerCompat.from(context).areNotificationsEnabled();
        }
    }

Upvotes: 66

thorin86
thorin86

Reputation: 633

I think example by @itzhar have one flaw: when user completely disabled notifications in app, we can get false positive (when channel itself wasn't disabled).

Updated code (in Kotlin) can look like:

fun isNotificationAllowed(context: Context): Boolean {
    return if (isOOrLater()) {
        areNotificationsEnabled(context) and isChannelDisabled(context)
    } else {
        areNotificationsEnabled(context)
    }
}

private fun areNotificationsEnabled(context: Context) =
    NotificationManagerCompat.from(context).areNotificationsEnabled()

@RequiresApi(api = Build.VERSION_CODES.O)
private fun isChannelDisabled(context: Context): Boolean{
    val notificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
    val channel = notificationManager.getNotificationChannel(NOTIFICATION_CHANNEL_ID)
    return channel.importance != NotificationManager.IMPORTANCE_NONE
}

private fun isOOrLater() = Build.VERSION.SDK_INT >= Build.VERSION_CODES.O

Upvotes: 5

shailesh mota
shailesh mota

Reputation: 309

This method can help : 

public boolean isNotificationChannelDisabled(@NonNull String channelId) {
        if(!channelId.equals(EMPTY)) {
            NotificationChannel channel = getManager().getNotificationChannel(channelId);
            return channel.getImportance() == NotificationManager.IMPORTANCE_NONE;
        }

        return false;
    }

private NotificationManager getManager(@NonNull Context context) {
        return mManager(android.app.NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
    }

Upvotes: 3

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