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Flutter State Management using ChangeNotifier and AnimatedBuilder - No Packages

by Marco Napoli youtube.com

11 min 2.5k views

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Dashboard using `ChangeNotifier` and `AnimatedBuilder`. State Management by using built-in Flutter classes. No Packages. What is covered In this project, you are going to take a look at: - How to use `ChangeNotifier` and `AnimatedBuilder` to selectively rebuild individual widgets for performance - State Management with build-in classes, no packages The Problem: - Dashboard app needs to chart espresso, coffee, latte and total consumption - Drawing each section bar, the chart needs to refresh independently for performance The Solution: - Use the `ChangeNotifier` and `AnimatedBuilder` to allow to selectively rebuild individual widgets for performance ChangeNotifier and AnimatedBuilder The `ChangeNotifier` and `AnimatedBuilder` allow to selectively rebuild individual widgets for performance 1. Create a class that extends `ChangeNotifier` 2. Add fields to contain data 3. Add methods to modify data and call the `notifyListeners()` method 4. Add the `AnimatedBuilder` widget in the widget tree to rebuild widgets selectively if the data changed How it Works `ChangeNotifier` and `ValueListenableBuilder` - The `ChangeNotifier` and `AnimatedBuilder` allow to selectively rebuild individual widgets for performance. Use fields to contain data defining them in the `ChangeNotifier`. Use methods to modify data and call the `notifyListeners()` method. Use the `AnimatedBuilder` widget in the widget tree to rebuild widgets selectively if the data changed. GitHub: https://github.com/JediPixels/dashboard_changenotifier Twitter: https://twitter.com/JediPixels Looking for Updates: https://JediPixels.dev Blog Article: https://jedipixels.dev/flutter-state-management-using-changenotifier-animatedbuilder #flutter #fluttertutorial #dart #flutterdev #flutterdeveloper #appdevelopment

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Marco Napoli @marconapoli 🇺🇸 United States

Available for hire

Marco Napoli is the CEO of Pixolini an experienced mobile, web and desktop app developer. He has a proven record in developing visually elegant and simple-to-us...

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Topics State management Performance

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