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Flutter GridView Tutorial and Examples

Flutter GridView Tutorial and Example.

We will see how to render items in a GridView in this tutorial and how to handle item click events.

A GridView is a scrollable, 2D array of widgets.

The main axis direction of a grid is the direction in which it scrolls (the scrollDirection).

The most commonly used grid layouts are GridView.count, which creates a layout with a fixed number of tiles in the cross axis, andGridView.extent, which creates a layout with tiles that have a maximum cross-axis extent. A custom SliverGridDelegate can produce an arbitrary 2D arrangement of children, including arrangements that are unaligned or overlapping.

To create a grid with a large (or infinite) number of children, use the GridView.builder constructor with either a SliverGridDelegateWithFixedCrossAxisCount or a SliverGridDelegateWithMaxCrossAxisExtent for the gridDelegate.

To use a custom SliverChildDelegate, use GridView.custom.

To create a linear array of children, use a ListView.

To control the initial scroll offset of the scroll view, provide a controller with its ScrollController.initialScrollOffset property set.

new GridView.count(
  primary: false,
  padding: const EdgeInsets.all(20.0),
  crossAxisSpacing: 10.0,
  crossAxisCount: 2,
  children: <Widget>[
    const Text('He'd have you all unravel at the'),
    const Text('Heed not the rabble'),
    const Text('Sound of screams but the'),
    const Text('Who scream'),
    const Text('Revolution is coming...'),
    const Text('Revolution, they...'),

Video tutorial(ProgrammingWizards TV Channel)

Well we have a video tutorial as an alternative to this. If you prefer tutorials like this one then it would be good you subscribe to our YouTube channel.

Basically we have a TV for programming where do daily tutorials especially android.

Let's look a flutter GridView example with onClick.

Flutter Simple GridView with OnClick Example

This is a simple flutter gridview example to display items from a flutter fixed-length list, otherwise known as an array in other languages. Obviously we write our app in Dart programming language.

If the user clicks a single cardview, a CupertinoAlertDialog will be rendered with the clicked item.

The dialog will have some text and icon.

Here are the files we explore:

  1. pubspec.yaml
  2. lib/main.dart
(a). pubspec.yaml
name: mr_simple_gridview
description: A new Flutter project.
    sdk: flutter
  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^0.1.2
    sdk: flutter
# The following section is specific to Flutter.
  # The following line ensures that the Material Icons font is
  # included with your application, so that you can use the icons in
  # the material Icons class.
  uses-material-design: true
(b). main.dart

This is where we write our flutter code in dart programming language. In Dart it is very common to write several classes in a single file. So this simple file will have three classes.

Importing Packages in Flutter/Dart

But first we need to import some packages and we do that using the import keyword in dart.

import 'package:flutter/material.dart';
import 'package:flutter/cupertino.dart';

Here are the packages we are importing:

  1. material.dart : will give us material design widgets and theme.
  2. cupertino.dart : Will give us CupertinoAlertDialog as well as cupertino icons.
Creating classes in Flutter/Dart

In Dart like in most C style programming languages you create a class using the class keyword. Classes are encapsulation mechanism in Object Oriented Programming languages.

In this case we create three classes:
1.class MyApp extends StatelessWidget {..}

  1. class Home extends StatefulWidget {..}
  2. class _HomeState extends State<Home> {..}
import 'package:flutter/material.dart';
import 'package:flutter/cupertino.dart';
class MyApp extends StatelessWidget {
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'Flutter GridView',
      home: new Home(),
      theme: new ThemeData(primaryColor: Colors.deepOrange),
class Home extends StatefulWidget {
  _HomeState createState() => new _HomeState();
class _HomeState extends State<Home> {
  Widget build(BuildContext context) {
    var spacecrafts = ["James Web","Enterprise","Hubble","Kepler","Juno","Casini","Columbia","Challenger","Huygens","Galileo","Apollo","Spitzer","WMAP","Swift","Atlantis"];
    var myGridView = new GridView.builder(
      itemCount: spacecrafts.length,
      gridDelegate: new SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 3),
      itemBuilder: (BuildContext context, int index) {
        return new GestureDetector(
          child: new Card(
            elevation: 5.0,
            child: new Container(
              alignment: Alignment.centerLeft,
              margin: new EdgeInsets.only(top: 10.0, bottom: 10.0,left: 10.0),
              child: new Text(spacecrafts[index]),
          onTap: () {
                barrierDismissible: false,
                context: context,
                child: new CupertinoAlertDialog(
                  title: new Column(
                    children: <Widget>[
                      new Text("GridView"),
                      new Icon(
                  content: new Text( spacecrafts[index]),
                  actions: <Widget>[
                    new FlatButton(
                        onPressed: () {
                        child: new Text("OK"))
    return new Scaffold(
      appBar: new AppBar(
          title: new Text("Flutter GridView")
      body: myGridView,
void main() {
  runApp(new MyApp());


You can download full source code below.

No. Location Link
1. GitHub Direct Download
2. GitHub Browse

Best Regards,

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