What are the best practices for using databases in Flutter?

What are the best practices for using databases in Flutter?

When using databases in Flutter, consider these best practices: 1. Use a local database like SQLite for offline access. 2. Implement data models to structure your data. 3. Use a repository pattern to separate data access from UI. 4. Handle database migrations carefully. 5. Optimize queries for performance.

Can you explain the repository pattern in more detail?

Sure! The repository pattern acts as a mediator between the data source and the UI. It abstracts the data access logic, allowing you to switch between different data sources (like local databases or APIs) without affecting the UI. This makes your code cleaner and easier to maintain.

How do I handle database migrations in Flutter?

To handle database migrations in Flutter, you can use the sqflite package. Define a version number for your database and implement the onUpgrade method to manage schema changes. Always back up your data before performing migrations.

What are some common performance issues with Flutter databases?

Common performance issues include slow queries, unoptimized data models, and excessive database reads/writes. Use indexing, batch operations, and limit the amount of data fetched to improve performance.