Flutter 如何给按钮的边框半径

请try 下面的示例:

在ElevatedButton示例中:

 ElevatedButton(
            onPressed: () {
              // Add your button click logic here
            },
            style: ElevatedButton.styleFrom(
              shape: RoundedRectangleBorder(
                borderRadius:
                    BorderRadius.circular(10.0), 
                side: BorderSide(
                    width: 2,
                    color: Colors.green),
              ),
              backgroundColor:
                  Colors.red, 
            ),
            child: Text('My Button'),
          ), 

在OutlineButton示例中:

OutlinedButton(
            onPressed: () {
             
            },
            style: OutlinedButton.styleFrom(
              backgroundColor: Colors.white,
              side: BorderSide(
                width: 2,
                color: Colors.blue,
              ),
              shape: RoundedRectangleBorder(
                borderRadius:
                    BorderRadius.circular(10.0), // Adjust the radius as needed
              ),
            ),
            child: Text('My Button'),
          ),