LocalNotification with AlarmManager and BroadcastReceiver not firing up in Android O (oreo)

Question

I\'ve got my local notifications running on androids prior to SDK 26

But in a Android O I\'ve got the following warning, and the broadcast receiver

Answer 1

Today i had the same problem and my notification was not working. I thought Alarm manager is not working in Oreo but the issue was with Notification. In Oreo we need to add Channel id. Please have a look into my new code:

int notifyID = 1; 
String CHANNEL_ID = "your_name";// The id of the channel. 
CharSequence name = getString(R.string.channel_name);// The user-visible name of the channel.
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);
// Create a notification and set the notification channel.
Notification notification = new Notification.Builder(HomeActivity.this)
            .setContentTitle("Your title")
            .setContentText("Your message")
            .setSmallIcon(R.drawable.notification)
            .setChannelId(CHANNEL_ID)
            .build();

Check this solution. It worked like charm.

https://stackoverflow.com/a/43093261/4698320

I am showing my method:

public static void pendingListNotification(Context context, String totalCount) {
        String CHANNEL_ID = "your_name";// The id of the channel.
        CharSequence name = context.getResources().getString(R.string.app_name);// The user-visible name of the channel.
        int importance = NotificationManager.IMPORTANCE_HIGH;
        NotificationCompat.Builder mBuilder;

        Intent notificationIntent = new Intent(context, HomeActivity.class);
        Bundle bundle = new Bundle();
        bundle.putString(AppConstant.PENDING_NOTIFICATION, AppConstant.TRUE);//PENDING_NOTIFICATION TRUE
        notificationIntent.putExtras(bundle);

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

        PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);

        NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

        if (android.os.Build.VERSION.SDK_INT >= 26) {
            NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);
            mNotificationManager.createNotificationChannel(mChannel);
            mBuilder = new NotificationCompat.Builder(context)
//                .setContentText("4")
                    .setSmallIcon(R.mipmap.logo)
                    .setPriority(Notification.PRIORITY_HIGH)
                    .setLights(Color.RED, 300, 300)
                    .setChannelId(CHANNEL_ID)
                    .setContentTitle(context.getResources().getString(R.string.yankee));
        } else {
            mBuilder = new NotificationCompat.Builder(context)
//                .setContentText("4")
                    .setSmallIcon(R.mipmap.logo)
                    .setPriority(Notification.PRIORITY_HIGH)
                    .setLights(Color.RED, 300, 300)
                    .setContentTitle(context.getResources().getString(R.string.yankee));
        }

        mBuilder.setContentIntent(contentIntent);

        int defaults = 0;
        defaults = defaults | Notification.DEFAULT_LIGHTS;
        defaults = defaults | Notification.DEFAULT_VIBRATE;
        defaults = defaults | Notification.DEFAULT_SOUND;

        mBuilder.setDefaults(defaults);
        mBuilder.setContentText(context.getResources().getString(R.string.you_have) + " " + totalCount + " " + context.getResources().getString(R.string.new_pending_delivery));//You have new pending delivery.
        mBuilder.setAutoCancel(true);
        mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
    }