Building an Android app starts with a well-defined product objective and awareness of device variety. Outlining the MVP, choosing an architecture, and designing key user flows early helps maintain focus for the initial release and minimizes rework as the app evolves.

Once the foundation is established, focus moves to UI uniformity, performance, and compatibility across different OS versions and display resolutions. Robust state management, prudent networking, and dependable analytics/crash reporting simplify ongoing maintenance and iteration after launching on Google Play.