Flutter dropdown border radius implementation. In this post, I will be changing the Flutter dropdown border radius using an easy and proper Flutter example code for better understanding. What Flutter dropdown border radius is and its usage is also included in this article. So let’s start understanding how to change Flutter dropdown border radius in Flutter dropdown.
Outline
- What is Flutter Dropdown Border Radius?
- Default Flutter Dropdown Shape
- Change Flutter Dropdown Border Radius
- Custom Flutter Dropdown Design Source Code
- Conclusion
What is Flutter Dropdown Border Radius?
Flutter dropdown border radius is as the name suggests, it is the radius of border of Flutter dropdown that you see when you tap on the Flutter dropdown button. In this post, we will understand how we can change the radius of the dropdown, we will make it a bit circular for demonstration. Let’s now implement it using proper Flutter code.
Default Flutter Dropdown Shape
Let’s see the default Flutter dropdown shape. For that we have implemented a simple Flutter dropdown button and for the dropdown we have used two Flutter dropdown menu items. See the below code:
DropdownButton( isExpanded: true, hint: Text('Select any category', style: TextStyle(fontSize: 15)), value: categoryValue, items: [ DropdownMenuItem( value: 'Sports', child: Text('Sports', style: TextStyle(fontSize: 15, color: Colors.black45))), DropdownMenuItem( value: 'Tech', child: Text('Tech', style: TextStyle(fontSize: 15, color: Colors.black45))), ], onChanged: (val) { setState(() { categoryValue = val.toString(); }); })

Change Flutter Dropdown Border Radius
To change the border radius of Flutter dropdown, we have to use the border radius constructor of the Flutter dropdown button widget. Then pass it the border radius, in our case we are using border radius circular which will make all sides circular with the same value. See the below code:
borderRadius: BorderRadius.circular(50)

Custom Flutter Dropdown Design Source Code
import 'package:flutter/material.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @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> { String? categoryValue; @override Widget build(BuildContext context) { return SafeArea( child: Scaffold( body: Center( child: Padding( padding: EdgeInsets.all(20), child: Container( padding: EdgeInsets.symmetric(horizontal: 20, vertical: 5), decoration: BoxDecoration( borderRadius: BorderRadius.circular(50) .copyWith(bottomRight: Radius.circular(0)), color: Colors.blue.shade100), child: DropdownButtonHideUnderline( child: DropdownButton( borderRadius: BorderRadius.circular(20) .copyWith(topLeft: Radius.circular(0)), isExpanded: true, hint: Text('Select any category', style: TextStyle(fontSize: 15)), value: categoryValue, items: [ DropdownMenuItem( value: 'Sports', child: Text('Sports', style: TextStyle(fontSize: 15, color: Colors.black45))), DropdownMenuItem( value: 'Tech', child: Text('Tech', style: TextStyle(fontSize: 15, color: Colors.black45))), ], onChanged: (val) { setState(() { categoryValue = val.toString(); }); }), ), ), )))); } }
Conclusion
In conclusion, now you have an in depth understanding of how to change Flutter dropdown border radius in Flutter dropdown. I would love to have your feedback on this post. I also have other amazing articles for you, they are related to Flutter app development, Flutter widgets, Flutter animations, Flutter amazing templates and many more, links to some of them are listed below. That’s it for this post. Thanks for reading.
Flutter app articles you might like to read: beautiful gradient login UI, Dart Vs JavaScript, flutter login UI form, flutter basics for beginners, explanation of widgets in flutter, flutter architecture, flutter vs native, flutter sliverappbar customization, mobile app marketing tips, flutter bottom navigation bar, flutter appbar actions, flutter appbar title center, why learn react native framework, react native jobs, react native elements, unique flutter development.
You might also like:
SAMSUNG Galaxy Chromebook 13.3 Laptop Amazing Specs
How To Change Flutter Textformfield Text Color
How To Change Flutter Textformfield Error Style
Acer Aspire 5 a515 Laptop Amazing Specs
How To Change Flutter Dropdown Background Color
How To Change Flutter Dropdown Icon Color
Amazing Specs Of Galaxy Chromebook Mercury Gray Laptop
Samsung Galaxy Book Pro Laptop Amazing Specs
How To Implement Flutter ListView Builder Horizontal
How To Implement Flutter ListView Horizontal
Asus Chromebook Flip C433 Laptop Amazing Specs
How To Change Flutter Textformfield Border Color?
How To Customize Flutter Textfield Initial Value?
ASUS Chromebook Detachable CM3 Amazing Specs
Amazing Acer Travelmate P4 laptop You Should Use
How To Change Flutter Textfield Hint Text Color?
How To Customize Flutter Textfield Initial Value?
How To Customize Flutter Textfield Hint Text?
How To Customize Flutter Textfield Label?
How To Implement Flutter Textfield Disable?
How To Change Flutter Textfield Height?
How To Change Flutter Textformfield Color?
How To Set Flutter Textformfield Default Value?
How To Change Flutter Textformfield Background Color
How To Change Flutter Textfield Underline Color
Flutter Textfield Remove Underline Explained With Example
Amazing Asus Rog Strix Scar 15 Gaming Laptop 2022
Beautiful Flutter Login UI Form Template With Free Source Code
Amazing Flutter Dart Book-Full Stack Application Development For Cloud(1st Edition)
Amazing Dart Programming Language Book For Beginners(1st Edition)
Best Python Programming Guide-Beginners Guide To Learn Python In 7 Days
Best Programming Python Book For Developers(2nd Edition)
Best Python Book Guide For Developers(3rd Edition)
Best Python Programming Exercises Book From Beginner To Advanced(5th Edition)
Best Python Crash Course Book(2nd Edition)-Project Based Introduction To Programming
Best JavaScript and JQuery Book For Frontend Web Developers
Best React Native Book-Start Developing Hybrid Apps
Flutter Textfield Onchanged Explained With Example-Best Flutter Guide
Flutter Textfield Maxlength Detailed Explanation With Example-Best Flutter Guide