Why are push notification badge numbers not showing on my app icon on Huawei devices?

The functionality of app icon badges on Huawei devices can be inconsistent, and this is often expected behavior due to the way the Android ecosystem and Huawei's software handle this feature.

The inconsistency is caused by two main factors:

• General Android Fragmentation: Unlike iOS, the standard Android operating system does not have a single, universal method for managing app icon badges. Each device manufacturer (e.g., Samsung, Xiaomi) and even different home screen launchers can implement their own custom logic for displaying badges. This results in varied support and behavior across the Android landscape.

• Huawei's Custom Software (EMUI/HarmonyOS): Huawei devices, especially those running on Huawei Mobile Services (HMS) instead of Google Mobile Services, use their own unique user interface (EMUI or HarmonyOS). The logic for displaying app icon badges is entirely controlled by Huawei's system and its native launcher.

Because of these factors, support for app icon badges on Huawei devices is highly dependent on the specific device model, OS version, and whether it uses Google or Huawei mobile services. It is an industry-wide challenge, and consistent badge functionality is not guaranteed on these devices.