Drawable Notification Icon [Small Icon] are typically monochrome and are designed to provide a clean, professional look while conforming to Android’s Material Design guidelines. It must be transparent. The icon should be scaled to the proper resolution for each drawable folder:
drawable-mdpi: 24x24 px
drawable-hdpi: 36x36 px
drawable-xhdpi: 48x48 px
drawable-xxhdpi: 72x72 px
drawable-xxxhdpi: 96x96 px
Use Case
These Icons are used only in android notification. In iOS, notifications are handled differently and iOS uses app icon for notification.
How to generate?
If you’re working on a single app then you can use Android Asset Studiowhich will generate drawable icons.
But… What if when you’re working on a flavor??? How to generate now? Uploading one image at a time to a Android Asset Studio, downloading it, placing it to respective res/ folder. Won’t it be a hectic???
