Prerequisites

       When choosing a library from Android to build a similar kind of library in HarmonyOS then, you may need to have a good knowledge in Android Application Development. Your Android knowledge will make the development process easier when developing libraries for HarmonyOS. The reason is you would be working on numerous capabilities and configurations.

If you're an expert with Android, you don't have to relearn everything for the Porting of the library and directly start learning HarmonyOS here.

If you are new to Android Development, it's highly recommended that you work through listed resources here

1. Once you have spent a decent amount of time exploring Android and building applications, now you need to have a basic understanding of Android libraries.

Here you will understand how to create, publish, and use Android Libraries and the best practices around building the Android Libraries.

Details about Android Libraries can be found here.

2. Finally, the basics of HarmonyOS concepts is mandatory, understanding from the architectural point of view, uniqueness of this OS and its distributed capabilities and more details.

About HarmonyOS - https://developer.harmonyos.com/en/home/