032abhishekchoksi / listview-flutter

List View (ListView, ListView Builder, ListView Separator, ListTile widget)

ListView in Flutter

In Flutter, ListView is a scrollable list of widgets arranged linearly. It displays its children one after another in the scroll direction i.e, vertical or horizontal.

There are different types of ListViews: ListView, ListView.builder and ListView.separated

1. ListView() This is the default constructor of the ListView class. A ListView simply takes a list of widgets and makes it scrollable. Usually, this is used with a few children as the List will also construct invisible elements in the list, so numerous widgets may render this inefficiently.

2. ListView.builder() The builder() constructor constructs a repeating list of widgets. The constructor takes two main parameters:
- An itemCount for the number of repetitions for the widget to be constructed (not compulsory). - An itemBuilder for constructing the widget which will be generated ‘itemCount‘ times (compulsory). If the itemCount is not specified, infinite widgets will be constructed by default.

3. ListView.separated () The ListView.separated() constructor is used to generate a list of widgets, but in addition, a separator widget can also be generated to separate the widgets. In short, these are two intertwined list of widgets: the main list and the separator list. Unlike the builder() constructor, the itemCount parameter is compulsory here.

4. ListTile Widget ListTile widget is used to populate a ListView in Flutter. It contains title as well as leading or trailing icons.

Getting Started

This project is a starting point for a Flutter application.

A few resources to get you started if this is your first Flutter project:

• Lab: Write your first Flutter app
• Cookbook: Useful Flutter samples

For help getting started with Flutter development, view the online documentation, which offers tutorials, samples, guidance on mobile development, and a full API reference.