How to persist data in Flutter using SQLite

The tutorial provides a detailed guide on building a simple Flutter app that utilizes SQLite for persistent local data storage, ensuring data retention even after an application or device restart. It walks through the process of setting up a Flutter project, adding necessary dependencies, and creating a user interface with a form for inputting user details such as name, age, and email. The guide explains how to implement a singleton DatabaseHelper class to manage SQLite database operations, including creating a users table and performing CRUD operations. It further demonstrates how to create a User model class for interacting with SQLite-friendly formats and how to use Flutter widgets like FutureBuilder and ListView to display and manage user data dynamically, including editing and deleting records. The guide emphasizes the importance of local data persistence for app performance and user experience, suggesting synchronization with a server when internet connectivity is available.