How To Set Flutter Flat Button Rounded Corners [Easy Flutter Guide]

In this tutorial, we’ll learn how to properly implement Flutter flat button rounded corners by using practical Flutter code examples.

Introduction: Flutter Flat Button Rounded Corners

As the name suggests, it specifies the process of making the edges/corners of flat button circular. Let’s first see the default shape of corners. After that, we’ll make them circular using practical code examples.

Default Flutter Flat Button Corners Shape

For that, we’ve to implement a simple Flutter flat button widget with some background color, so the whole button is visible. See below code:

FlatButton(
            onPressed: () {},
            color: Colors.purple,
            textColor: Colors.white,
                   child: Text(
                      'Flutter Flat Button',
                    ))

Above image shows the default corner shape of flat button.

Implementing Flutter Flat Button Rounded Corners (Multiple Examples)

In order to do that, we’ve to use the shape constructor of our Flutter flat button widget and pass it round rectangle border widget. This widget has a border radius constructor which can take different methods. See below list:

BorderRadius.circular()
BorderRadius.horizontal()
BorderRadius.vertical()
BorderRadius.only()

Border Radius Circular

If we want to make each and every edge of Flutter flat button circular and all of the same value, then we can use the below code:

shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(15))

flutter flat button border radius circular

If we want some edges to have a different radius value then we can use the copyWith method. See below code:

flutter flat button border radius circular shape

 shape: RoundedRectangleBorder(
              borderRadius: BorderRadius.circular(13).copyWith(
                  bottomLeft: Radius.circular(7),
                  topRight: Radius.circular(23)))

Border Radius Horizontal

If we want to give top right and bottom right edge a same value and top left and bottom left a same value, then use the below code:

flutter flat button border radius horizontal

 shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.horizontal(
                  left: Radius.circular(21),
                  right: Radius.circular(11)))

We can use copyWith method here as well.

Border Radius Vertical

If you want to give top right and top left edge a same value and bottom right and bottom left edge a same value, then use the below code:

flutter flat button border radius vertical

 shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.vertical(
                  top: Radius.circular(11),
                  bottom: Radius.circular(21)))

We can use copyWith method here as well.

Border Radius Only

If we want to provide each edge of Flutter flat button with different/same value, then use the below code:

shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.only(
                 topRight: Radius.circular(11),
                 topLeft: Radius.circular(41),
                 bottomLeft: Radius.circular(21),
                 bottomRight: Radius.circular(3),
                    ))

We can use copyWith method here as well but it won’t be a good practice.

So this is how we can implement Flutter flat button rounded corners.

We’ve discussed it in detail so you can have a better idea of how to customize the shape of Flutter flat button widget. Hope you like this post.

The complete source code of Flutter flat button rounded corners is given in the below section.

Flutter Flat Button Rounded Corners Source Code

flutter flat button rounded corners

import 'package:flutter/material.dart';
void main() {
  runApp(const MyApp());
}
class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Homepage(),
    );
  }
}
class Homepage extends StatefulWidget {
  @override
  State<Homepage> createState() => _HomepageState();
}
class _HomepageState extends State<Homepage> {
  @override
  Widget build(BuildContext context) {
    return SafeArea(
        child: Scaffold(
            body: Center(
                child: FlatButton(
                    onPressed: () {},
                    color: Colors.purple,
                    textColor: Colors.white,
                    shape: RoundedRectangleBorder(
                        borderRadius: BorderRadius.circular(41)),
                    child: Text(
                      'Flutter Flat Button',
                    )))));
  }
}

Conclusion

To conclude this tutorial, now you’ve a detailed and in-depth practical knowledge of how to implement Flutter flat button rounded corners. I’d love to have your feedback on this post.

I’d also love to see you visit my other tutorials on Flutter app development and Python programming as well. Thank you for reading this post.