Your list of developer tools for Android is a good starting point for creating apps or smartphone-optimized websites. However, there are a few more tools and alternatives that you may find useful:
Android Studio: The official IDE for Android app development, offering a comprehensive set of tools, emulators, and debugging features. It's widely used by professional developers.
Flutter: A UI toolkit developed by Google for building natively compiled applications for mobile, web, and desktop from a single codebase. It provides a rich set of pre-designed widgets and has gained popularity for its cross-platform capabilities.
Kotlin: A modern programming language for Android app development that offers concise syntax, enhanced safety features, and interoperability with existing Java code.
Firebase: A comprehensive mobile and web development platform by Google. It provides a range of tools and services, including real-time database, authentication, cloud storage, and push notifications.
Expo: A set of tools and services that simplifies the development of React Native apps. It offers a faster development workflow and provides additional features like over-the-air updates and easy app distribution.
Remember, the choice of tools depends on your specific requirements and expertise. It's always recommended to explore and experiment with different tools to find the one that best suits your development needs.