Here is a roadmap for becoming an Android developer:

1. Learn the basics of programming: If you are new to programming, it is important to start by learning the basics. This includes concepts such as variables, loops, and data types. You can learn these concepts through online courses or by working through a textbook.

2. Learn Java: Java is the primary programming language used for Android development, so it is important to become proficient in it. There are many resources available for learning Java, including online courses, tutorials, and textbooks.

3. Learn the Android platform: Once you have a solid foundation in programming and Java, you should start learning about the Android platform. This includes learning about Android Studio, the official Integrated Development Environment (IDE) for Android development, as well as the Android Software Development Kit (SDK) and the Android framework.

4. Build your first app: Now it is time to put your skills to the test by building your first Android app. Start with something simple, such as a to-do list app, and work your way up to more complex projects.

5. Learn best practices: As you gain more experience building Android apps, it is important to learn best practices for design, coding, testing, and deployment. This will help you create high-quality apps that are reliable and easy to use.

6. Join the Android developer community: There is a thriving community of Android developers who share tips, tricks, and resources. Participating in online forums, attending meetups and conferences, and contributing to open-source projects are all great ways to connect with other developers and stay up-to-date on the latest trends.

7. Keep learning: Technology is constantly evolving, and it is important for developers to stay up-to-date on the latest tools and techniques. Make a habit of learning something new every day, whether it is a new feature in Android Studio or a new library for handling data.

By following this roadmap, you can become a proficient Android developer and create high-quality apps that are enjoyed by users around the world.