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Managing State in Flutter: A Guide to State Management with MVVM Architecture.

In this blog post, we'll explore efficient state management in Flutter applications using ValueNotifier and EfficientBuilder within the MVVM (Model-View-ViewModel) architectural pattern. The MVVM architecture consists of three key components: Model: Represents the data and business logic View: Handles the UI presentation ViewModel: Manages state and business logic between Model and View In our approach, we’ll be refining the ViewModel by separating its states into a dedicated State class. This ensures that the ViewModel focuses solely on managing logic while the State class handles state representation. Traditionally, in MVVM, the ViewModel is responsible for both state management and business logic. However, by decoupling these concerns, we create a more structured and maintainable architecture. No more talking. Lets, implement it together. 1. Efficient Builder: We are going to use Efficient Builder package for this. So, go to pub.dev. Add the package to you pubspec.yaml file...
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ListView and ListTile!

Listview and Listtile are basic widgets, which are used to make a scrollable lists of item in a mobile app. They are essential component for building app where we need various type of lists, such as menus, chat message lists and etc.



ListView: Listview is a widget used to create a scrollable list of children. It can hold a list of widgets and automatically handles scrolling when the content exceeds the available space.

ListTile: Listtile widget is designed to represent a single item within a list. It typically contains title, subtitle, leading or trailing icon and can be made tappable.

Key Properties of listTile:

  • Title: The primary content of the list item.
  • Subtitle: Optional secondary content.
  • leading: A widget display before the title.
  • trailing: A widget display after the title.
  • Ontap: A callback function that is triggered when the listtile tapped.

Both Listview and Listtile are highly customizable, and you can style them according to the app design requirements. They are versatile and widely used in Flutter app development for presenting list of data or options to users in an organized and user-friendly manner.

body: Container(
  margin: const EdgeInsets.fromLTRB(0, 10, 8, 0),
  child: ListView(
    itemExtent: 70.0,
    children:  [
      ListTile(
        title: Text(
          "Top Faculties(UITS)",
          style: TextStyle(fontSize: 25, fontWeight: FontWeight.bold, color: Colors.red),
          textAlign: TextAlign.center,
        ),
      ),
      ListTile(
        leading: Container(
           height: double.infinity,
            child: Icon(Icons.computer)
        ),
        title: Text(
          "Computer Science",
          style: TextStyle(fontWeight: FontWeight.bold),
        ),
        subtitle: Text("We are the first it university......"),
        trailing: Text("300000"),
        onTap: () {},
      ),
      ListTile(
        leading: Container(
            height: double.infinity,
            child: Icon(Icons.medical_information)
        ),
        title: Text(
          "Pharmacy",
          style: TextStyle(fontWeight: FontWeight.bold),
        ),
        subtitle: Text("We have best medicine......"),
        trailing: Text("450000"),
        onTap: (){},
      ),
      ListTile(
        leading: Container(
          height: double.infinity,
          child: Icon(Icons.electric_bolt)
        ),
        title: Text(
          "Electrical Engineering",
          style: TextStyle(fontWeight: FontWeight.bold),
        ),
        subtitle: Text("Our students works at best....."),
        trailing: Text("500400"),
        onTap: (){},
      )
    ],
  ),
),

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