Android 10 Mediastyle Notification Seek Bar Is Black

The MediaStyle Notification introduced in Android 10 works but is however black and doesn't display duration either. Here is a link to the code: https://github.com/ryanheise/audio

Solution 1:

I followed the hints reported in this bug report and I solved the problem. I successfully tested it on Samsung and Huawei devices with Android 10.

The trick is:

As per Google's Material Design guidelines, the small icon in the notification should be monochrome white, and have a transparent background. If you follow those guidelines, the slider displays correctly.

Some people report also that you have to set a non transparent color (like Color.BLACK) using setColor() method to make it work on some devices.