Notification channel on DFU on Android 9.0 needs to be updated

[pedrochee]

Hi guys! The app is crashing on DFU, its due to the notificacion channel, I think the problem comes on NotificationActivity.java, I tried the following:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); nm.createNotificationChannel(new NotificationChannel(NOTIFICATION_CHANNEL_ID_SERVICE, "App Service", NotificationManager.IMPORTANCE_DEFAULT)); nm.createNotificationChannel(new NotificationChannel(NOTIFICATION_CHANNEL_ID_INFO, "Download Info", NotificationManager.IMPORTANCE_DEFAULT)); }

but its not working, any idea on how i can fix this?

[philips77]

You may call a static method from the DfuServiceInitiator that will create the channel. The app needs to be updated, we know. We just don't have resources right now.. :(

[pedrochee]

Thanks @philips77 ill figure it out and post it here for future reference

[pedrochee]

So I made it work, the solution is to:

1.- add the foreground service permission in the manifest:

<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />

2.- add static method on the OnCreate() of DfuInitiatorActivity.java to verify if the OS is running android O versions or above: (used the notification channel init on ToolboxApplication.java)

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            DfuServiceInitiator.createDfuNotificationChannel(this);

            final NotificationChannel channel = new NotificationChannel(CONNECTED_DEVICE_CHANNEL, getString(R.string.channel_connected_devices_title), NotificationManager.IMPORTANCE_LOW);
            channel.setDescription(getString(R.string.channel_connected_devices_description));
            channel.setShowBadge(false);
            channel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);

            final NotificationChannel fileChannel = new NotificationChannel(FILE_SAVED_CHANNEL, getString(R.string.channel_files_title), NotificationManager.IMPORTANCE_LOW);
            fileChannel.setDescription(getString(R.string.channel_files_description));
            fileChannel.setShowBadge(false);
            fileChannel.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);

            final NotificationChannel proximityChannel = new NotificationChannel(PROXIMITY_WARNINGS_CHANNEL, getString(R.string.channel_proximity_warnings_title), NotificationManager.IMPORTANCE_LOW);
            proximityChannel.setDescription(getString(R.string.channel_proximity_warnings_description));
            proximityChannel.setShowBadge(false);
            proximityChannel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);

            final NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            notificationManager.createNotificationChannel(channel);
            notificationManager.createNotificationChannel(fileChannel);
            notificationManager.createNotificationChannel(proximityChannel);
        }

This fixed the problem for me.

[mikezhang3679]

DfuServiceInitiator.createDfuNotificationChannel(context);

try this.