Flutter ListView example with ListView.builder » grokonez

Flutter ListView example with ListView.builder » grokonez

build a Flutter App that shows a ListView with ListView.builder. The ListView also supports removing item from the list - Flutter ListView example

https://grokonez.com/flutter/flutter-listview-example-listview-builder

Flutter ListView example with ListView.builder

In this tutorial, we're gonna build a Flutter App that shows a ListView. We are using ListView.builder constructor that creates items when they are scrolled onto the screen. The ListView also supports removing item from the list.

More Practice:

Overview

Flutter App

We will build a Flutter App that can display a List of Post objects, we can also click on the circle Remove Button to delete a Post from the List. This will update the UI immediately because we use StatefulWidget. flutter-listview-example

List of items with ListView

Initialize the List
We will implement initState() method and call setState() to initialize the List.

class ListViewApp extends StatefulWidget {
  @override
  _ListViewState createState() => new _ListViewState();
}

class _ListViewState extends State { final List items = new List();

@override void initState() { super.initState(); setState(() { items.add(new Post(...)); items.add(new Post(...)); // ... }); }

Use ListView.builder
To display items on the List, we need to render each Object as a Widget. So we use ListView.builder with itemBuilder callback that returns built-in ListTile Widget for visual structure.

More at:

https://grokonez.com/flutter/flutter-listview-example-listview-builder

Flutter ListView example with ListView.builder

flutter listview builder

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