How to Change Back Button Icon in Flutter

**Changing the Back Button Icon in Flutter: A Step-by-Step Guide**

Are you tired of the default back button icon in Flutter? Do you want to customize it to make your app stand out? Look no further! In this blog post, we’ll show you how to change the back button icon in Flutter with just a few simple steps.

**Why Change the Back Button Icon?**

Before we dive into the tutorial, let’s talk about why you might want to change the back button icon. Maybe you’re going for a unique design feel, or perhaps you want to add some extra flair to your app’s navigation. Whatever your reason, we’re here to help you do just that.

**Step 1: Create a new MaterialWidget**

To change the back button icon, you’ll need to create a new `Material` widget. This will give you the flexibility to customize the icon and other properties of the back button.

Here’s the code:
“`dart
Material(
type: MaterialType.transparency,
child: Padding(
padding: const EdgeInsets.all(16.0),
child: AppBar(
title: Text(‘My App’),
leading: previousButton(),
),
),
)
“`
In this code, we’re using the `Padding` widget to add some space around the `AppBar`, and then creating an `AppBar` with the `title` property set to ‘My App’ and the `leading` property set to our custom back button icon.

**Step 2: Define the Custom Back Button Icon**

Now it’s time to define the custom back button icon. You can do this by creating a new `Widget` that returns a `Container` with the icon you want.

Here’s an example:
“`dart
Widget previousButton() {
return Container(
decoration: BoxDecoration(
shape: BoxShape.circle,
border: Border.all(width: 2, color: Colors.blue),
),
child: Icon(Iconskea.fas, size: 24, color: Colors.blue),
);
}
“`
In this code, we’re using a `Container` to create a circular icon with a blue border. You can customize the icon and other properties to fit your design needs.

**Step 3: Use the Custom Back Button Icon**

Finally, you can use the custom back button icon in your `Material` widget. Simply replace the default back button icon with your new custom icon.

Here’s the updated code:
“`dart
Material(
type: MaterialType.transparency,
child: Padding(
padding: const EdgeInsets.all(16.0),
child: AppBar(
title: Text(‘My App’),
leading: previousButton(),
),
),
)
“`
And that’s it! You should now see your custom back button icon in your app.

**Conclusion**

Customizing the back button icon in Flutter is a simple process that can add a unique touch to your app’s design. By following these steps, you can create your own custom back button icon and add it to your `Material` widget.

We hope this tutorial has been helpful. If you have any questions or need further assistance, feel free to ask in the comments below.

Happy coding!