Android Question Notification icon blank white

[Scantech]

On Android 7 real Device the notification icon is blank white instead of my icon pic. Even the default icon will not show. However, it does show in lock screen at the bottom in color?

I have icon in the res folder and I am using adaptive icon.

What seems to be the problem?

 

[Erel]

android.jar / targetSdkVersion / minSdkVersion
See the change in version 22.

 

[Scantech]

I tried gray scale and playing with alpha channel and even added different icon with gray scale. It still shows up in blank. Anyone have an icon i can test with my project?

 

[Erel]

Grey scaling is not related. The icon should have transparent parts.

Create a new project with this code and run it (don't change or set the icon):

Sub Activity_Create(FirstTime As Boolean)
   Dim n As Notification
   n.Initialize
   n.Icon = "icon"
   n.SetInfo("test", "test", Me)
   n.Notify(1)
End Sub

 

[Scantech]

Yes it works with new project. Something weird with my project? It does not accept default icon or any.

The new project did not like my icon (Blank Display). But still why wont the default icon work with my project?

 

[Scantech]

I found the problem. I had Drawable_Large, Normal and Small Folders with icons. I removed them and default icon works!

One question. Should i delete the drawable large, normal small folder since i am using Adaptive Icons?

 

[Erel]

Should i delete the drawable large, normal small folder since i am using Adaptive Icons?

These folders are never needed.