TextButton in Flutter

You can customize the TextButton's shape  using the style property.
You can use the style property  to define various aspects of the button, such as its shape.
You can  set the shape using the ButtonStyle's Shape property.

There Are Some Common Attributes for TextButton

Here's a simple example of using a TextButton in Flutter:

File open lib->main.dart file −

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(
    MyApp()
  );
}
class MyApp extends StatefulWidget{

  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {

  @override
  Widget build(BuildContext context) {
    return   MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          backgroundColor: Colors.blue,
          title: Text('Button Example',
              style:TextStyle(fontSize: 20,color: Colors.white)),
        ),
        body: Center(
          child:
          Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              TextButton(
                  onPressed: (){

                  },
                  child: Text("Button",style: TextStyle(fontSize: 20),),
              ),
              TextButton(
                onPressed: (){
                },
                child: Text("Button",style: TextStyle(fontSize: 20)),

                style: TextButton.styleFrom(
                    foregroundColor: Colors.white,
                    elevation:1,
                    shape: RoundedRectangleBorder(
                      borderRadius: BorderRadius.circular(5.0), // Adjust the radius as needed
                    ),
                    padding: EdgeInsets.only(left: 20,right: 20,top: 5,bottom: 5),
                    backgroundColor: Colors.blueAccent
                ),

              )
            ],
          ),
        )

    ));

  }


}

Open Device Manager, run the emulator, and then run the application. Next, check the working output and check the output you declared in your code.

Output: