Fatal Exception: android.app.RemoteServiceException Bad notification posted from package:* Couldn't create icon: StatusBarIcon

My app is crashing when showing a local notification on Samsung devices using Android 8.1.

I tested using an emulator on Android 8.1 and everything is fine, I’m guessing this is a problem with Samsung, anybody knows what can be done to solve this problem?

Your Environment

• Plugin version: 0.9.0-beta.2
• Platform: Android
• OS version: 8.1
• Device manufacturer / model: Samsung Galaxy J7 Prime
• Cordova version (cordova -v): 9.0.1
• Cordova platform version (cordova platform ls): 8.1.0
• Plugin config: “cordova-plugin-local-notification”: {}
• Ionic Version (if using Ionic): @ionic-native/core: 5.18.1-beta.5

Expected Behavior

Show a notification

Actual Behavior

App crashes

Steps to Reproduce

Send a local notification, app crashes immediately

Context

Send a local notification

Debug logs

Include iOS / Android logs

This is what showed in Firebase Crashlytics stacktrace:

Fatal Exception: android.app.RemoteServiceException
Bad notification posted from package: ** Couldn't create icon: StatusBarIcon(icon=Icon(typ=RESOURCE pkg=** id=0x01020006) visible user=0 )
android.app.ActivityThread$H.handleMessage (ActivityThread.java:1906)
android.os.Handler.dispatchMessage (Handler.java:106)
android.os.Looper.loop (Looper.java:164)
android.app.ActivityThread.main (ActivityThread.java:7000)
java.lang.reflect.Method.invoke (Method.java)
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:441)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1408)

[Simbaclaws]

@GitFr33 It was: res://mipmap-xxxhdpi/ic_stat_zin.png

Where ic_stat_zin.png was a icon that has transparency and is pure white. The name of the file may differ. If you do not make an icon that is pure white it will not work, as there are configurations in android to color the icon in xml. Or in the case of localnotification this is done through a function call if I’m not mistaken.

This is also the reason why the notification icon generator in android asset studio only generates white icons. https://romannurik.github.io/AndroidAssetStudio/icons-notification.html#source.type=clipart&source.clipart=ac_unit&source.space.trim=1&source.space.pad=0&name=ic_stat_ac_unit (I hope this doesn’t sound racist, it’s just how google made it work for notifications)

The location of where to put this icon is in: /android/app/src/main/res/mipmap-xxxhdpi/ this can be any of the mipmap directories, I went for the biggest one because it would guarantee quality on all screens. I think res:// points to /android/app/src/main/res/ but I haven’t tested whether it’ll work with custom directories yet.

Since there was no documentation I kind of figured this out on my own through some logical reasoning. I basically looked at how native apps do it. And also the word res (which I assume is resource) gave it away.

[Simbaclaws]

What I did to fix the issue was set a correct smallIcon in the local notification properties. Apparently the default icon for the local notification causes issues.

EDIT: Presumably because it is not white?