12

    Local Persistence

    Beginner • 15 min • Video Lesson

    Complete tasks and quiz to finish this lesson

    Video Player Placeholder (lo1DY_I_5Y8)

    Learning Objectives

    • Differentiate between mobile cache managers (Key-Value vs Local Databases)
    • Implement SharedPreferences for simple settings properties
    • Configure Hive NoSQL database storage for offline records caching
    • Perform CRUD database actions locally without internet dependencies

    What You'll Learn

    1. Comparison: SharedPreferences vs SQL databases vs NoSQL databases
    2. Storing setting variables using key-value shared preferences sets
    3. Initializing Hive NoSQL storage boxes and registering adapters
    4. Reading and persisting offline records databases dynamically

    Key Concepts

    Local Persistency
    SharedPreferences
    Hive Box
    Offline Mode
    CRUD Operations
    NoSQL Cache

    Key Takeaways

    • SharedPreferences is ideal for simple data configurations like themes or user settings.
    • Hive is a super-fast, pure-Dart NoSQL database optimized for offline-first data engines.
    • Closing databases cleanly prevents file corruption when devices lose battery.

    Build Steps

    Knowledge Check

    Which fast NoSQL database is written completely in pure Dart?

    Which key-value persistent storage is ideal to store lightweight user settings?

    Which Hive structure contains data collections in key-value maps?

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