Building an Android application starts with a well-defined objective and awareness of device variety. Outlining the MVP, choosing an architecture, and mapping essential user journeys early keeps the initial release targeted and minimizes rework as the app evolves.

Once the foundation is set, focus moves to a consistent UI, efficiency, and compatibility across different OS versions and display sizes. Robust state management, careful networking, and dependable analytics/crash reporting simplify maintenance and iteration after launching on Google Play.