The ultimate enhanced IndexedStack with lazy loading, preloading, and state preservation made easy for optimized Flutter apps.

Features

• 🚀 Lazy Loading: Children are only built when they first become active.
• ⚡ Preloading: Specify indexes to load in the background before the user navigates to them.
• 💾 State Preservation: Keeps the state of children alive (scroll position, text inputs, etc.) once loaded.
• 🛠️ Custom Placeholders: Show a custom widget (like a loader) for uninitialized tabs.
• 🔄 Placeholder Sync: Automatically updates placeholders across all tabs if the placeholder widget changes.

Getting started

Add the dependency to your pubspec.yaml:

dependencies:
  lazy_indexed_stack_plus: ^0.0.1

Usage

LazyIndexedStackPlus(
  index: 0,
  preloadIndexes: {1}, // Optional: Preload specific tabs
  placeholder: Center(child: CircularProgressIndicator()),
  children: [
    HomeTab(),
    ProfileTab(),
    SettingsTab(),
  ],
);