ListTile in Flutter

Features of ListTile in Flutter

Let us note down some key features of ListTile in Flutter:

• It allows the users to customize their content with widgets, titles, icons, functionalities, etc. Even a combination of widgets can be used to represent the information.
   
• It supports theming. The Theme class achieves it. It helps the users change the tiles' visuals, individually or globally. The programmer can specify the background color, text color, etc.
   
• Different variants of tiles are supported. CheckboxListTile, SwitchListTile, and RadioListTile are examples of them. It helps include various functionalities like checkboxes and radio buttons in the list of items.
   
• You can also use dividers to separate two tiles visually. Also, you can adjust the padding around them to specify the spacing and layout of the tiles.
   
• Gesture callbacks are well supported by ListTile in Flutter. Double taps, Long taps, taps, etc., are supported for user interaction. The programmer can program custom behaviors upon these responses.
   
• It ensures compatibility with the readers. It has built-in accessibility features allowing users with disabilities to interact with the list efficiently.

Properties

Let us explore some properties for the items in ListTile in Flutter as follows:-

• contentPadding:- It controls the padding or the spacing between the items.
   
• enable:- It specifies the interactiveness of the ListTile by a boolean value.
   
• dense:- It specifies whether the ListTile will be a part of the vertically dense list using a boolean value.
   
• autofocus:- It specifies whether the widget will be selected on the first focus.
   
• isThreeLine:- It specifies whether the item will have three lines of content.
   
• onLongPress:- It calls the Long Press callback function to specify what will happen if a user presses long enough on the item.
   
• onTap:- It calls the determined function when the tile is pressed.
   
• trailing:- It is the trailing widget of the ListTile.
   
• selected:- It is a boolean value. If true, the text and the icon will be painted the same color.
   
• selectedTilecolor:- It specifies the background color of the tile when it is selected.

Example of ListTile in Flutter

Now, let us look at the following program of the main.dart file of our project for displaying a ListTile in Flutter program.

import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});
  @override
  State<StatefulWidget> createState() {
    return MyAppState();
  }
}

class MyAppState extends State<MyApp> {
  // const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        home: Scaffold(
            appBar: AppBar(title: Text("Demo Listtile App")),
            body: ListView(
                children: ListTile.divideTiles(context: context, tiles: [
              ListTile(
                title: Text("Subject"),
                subtitle: Text("Item 1"),
                leading: Icon(Icons.person),
                trailing: Icon(Icons.star),
                selectedColor: Colors.blue,
                onTap: () {},
                onLongPress: () {},
                tileColor: Colors.amberAccent,
              ),
              ListTile(
                title: Text("Subject"),
                subtitle: Text("Item 1"),
                leading: Icon(Icons.person),
                trailing: Icon(Icons.star),
                selectedColor: Colors.blue,
                onTap: () {},
                onLongPress: () {},
                tileColor: Colors.amberAccent,
              ),
              ListTile(
                title: Text("Subject"),
                subtitle: Text("Item 1"),
                leading: Icon(Icons.person),
                trailing: Icon(Icons.star),
                selectedColor: Colors.blue,
                onTap: () {},
                onLongPress: () {},
                tileColor: Colors.amberAccent,
              ),
              ListTile(
                title: Text("Subject"),
                subtitle: Text("Item 1"),
                leading: Icon(Icons.person),
                trailing: Icon(Icons.star),
                selectedColor: Colors.blue,
                onTap: () {},
                onLongPress: () {},
                tileColor: Colors.amberAccent,
              ),
            ]).toList())));
  }
}

As we can see, we imported the material.dart library. It is because it contains the implementation of the ListTile. Then, we have written our code for displaying a ListTile in Flutter as above, and we receive our output as shown below.

OUTPUT

Our ListTile successfully displays a list of items as expected.

Good Practices for ListTile in Flutter

If you are using ListTile in Flutter, it is good to keep in mind the following tips:-

• It is suitable for displaying impactful information. But, complex layouts may not be ideal for it. Custom list items can be used for custom layouts.
   
• ListTiles should not be overcrowded. Cut clear information should be displayed in it.
   
• Leading and trailing widgets should be wisely used to enhance the visual appearance of ListTiles.
   
• Customizations such as padding, background color, and text colors should be used for better readability.
   
• On-tap and on-long press events are great functionalities. It would be best if you used them judiciously for your application.
   
• You should ensure that your application is accessible to all users. Appropriate labels, titles, subtitles, etc., should be utilized.
   
• If the number of ListTiles is enormous, use ListView.builder to optimize the performance. It renders only visible items to decrease the overhead.
   
• Test your execution thoroughly on different devices and screens for better evaluations.

Frequently Asked Questions

What is Flutter?

Flutter is an open-source software development kit. Google developed it. It enables users to build cross-platform applications for web browsers, android, iOS, Linux, MacOS, Windows, etc.

What is ListTile in Flutter?

ListTile is a user interface component. It is used to display a single item in a list or a list of items in a compact layout. It is a customizable widget consisting of a leading widget, a title, a subtitle, and a trailing widget.

What does the onLongPress property do for ListTile in Flutter?

The onLongPress property for ListTile in Flutter holds the GestureLongPressCallback typedef as the object. It mainly specifies what shall happen when the user presses the tile long enough.

Conclusion

Flutter is an open-source software development kit. It can be used to build applications. In it, there are many functionalities and widgets provided for use. ListTile in Flutter is an interface component used to display a list of components impactfully. We studied its definition, uses, properties, features, and implementation.

If you want to learn more about this topic, we recommend you read the following articles:-

• Flutter Lists
   
• Flutter Layout
   
• Flutter Horizontal List
   

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