What, besides UI tests, can be done to check code for bugs?

Besides UI tests, several approaches can be used to check code for bugs in Android development:

• Unit tests — test individual classes and methods without dependencies on UI or external services.
• Integration tests — test interactions between components, such as between the database and business logic.
• End-to-end tests — verify the operation of the entire system, including UI, but they can be more resource-intensive.
• Static code analysis — tools (e.g., Lint, SonarQube) automatically analyze code for potential errors, performance issues, and style problems.
• Code review — manual review by colleagues helps identify logical errors and improve quality.
• Automated quality checks (Quality Assurance) — include various tests and checks integrated into CI/CD processes.

Using these methods in combination significantly improves code quality and reduces bugs.