How would you characterize your skills and preparation before this interview?

Before this interview, I systematically prepared by studying key Android development concepts such as the Activity and Fragment lifecycle, working with ViewModel and LiveData, basics of database management (Room), and principles of network operations (Retrofit, Coroutines). I practiced writing small applications and solving problems in Kotlin to improve my programming skills and understanding of architectural patterns (MVVM, Clean Architecture). Additionally, I focused on learning new features of the Android SDK and development tools like Android Studio and debugging applications.