Скачать или смотреть How to Add an Icon to AppBar in Flutter

Learn how to customize the AppBar in Flutter by adding an icon. This guide provides a detailed walkthrough to enhance your Flutter app with icons on the AppBar.
---
Disclaimer/Disclosure: Some of the content was synthetically produced using various Generative AI (artificial intelligence) tools; so, there may be inaccuracies or misleading information present in the video. Please consider this before relying on the content to make any decisions or take any actions etc. If you still have any concerns, please feel free to write them in a comment. Thank you.
---
How to Add an Icon to AppBar in Flutter: A Step-by-Step Guide

AppBar is a fundamental part of a mobile application that helps improve user navigation and UX. Flutter, the open-source UI toolkit, simplifies the process of adding an AppBar to your application, and customizing it to fit your needs. In this post, we will guide you through the steps required to add an icon to your AppBar in Flutter.

What is AppBar in Flutter?

AppBar is a material design widget in Flutter that is primarily used to place top-level app controls like title, actions, and other controls such as search input, navigation drawer options, etc.

Why Add an Icon to AppBar?

Icons on the AppBar can provide quick actions for the users, and can be used for functionalities like navigation, search, or other custom actions relevant to your application. They help in making the user interface more intuitive and efficient.

Steps to Add an Icon to AppBar

Let’s break down the process of adding an icon to the AppBar in a Flutter application.

Step 1: Setting up Flutter Environment

If you haven't already, set up your Flutter environment. Ensure you have the latest version of Flutter SDK installed.

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Create a Stateless or Stateful Widget

In this example, we’ll be using a StatelessWidget. You can also use StatefulWidget if your application requires maintaining state.

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Define the AppBar and Add an Icon

In your HomeScreen widget, define the AppBar and add an icon to it using the actions property.

[[See Video to Reveal this Text or Code Snippet]]

Explanation:

AppBar: This widget is used within the Scaffold widget's appBar attribute to render an AppBar.

title: The title of the AppBar is set using the Text widget.

actions: The actions property accepts a list of widgets, allowing multiple icons to be added. Here, we add an IconButton widget to introduce an icon.

IconButton: This widget is used to display an icon with an onPress function. We chose the search icon (Icons.search) as an example.

onPressed: This is the callback function that gets called when the icon is tapped. In our case, it prints a message to the console.

Step 4: Run the App

Execute the flutter run command to see your changes in action. Once the app is running, you'll see the AppBar with the added search icon.

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Adding an icon to the AppBar in Flutter is a straightforward task that can significantly enhance the user interface of your application. By following the step-by-step guide provided above, you can easily customize the AppBar to include any icon relevant to your app's functionality. Continue exploring Flutter's extensive widget library to unlock more UI possibilities and enrich the user experience of your application.