Flutter:OutlineButton的side属性好像没有效果

Question

生成一个带有白色边框的 OutlineButton:

OutlineButton(
  shape: RoundedRectangleBorder(
    side: BorderSide(
      color: Colors.purple
    )
  ),
)

生成一个带有紫色边框的 FlatButton:

FlatButton(
  shape: RoundedRectangleBorder(
    side: BorderSide(
      color: Colors.purple
    )
  ),
)

OutlineButton的部分文档:

borderSide → BorderSide Defines the color of the border when the button is enabled but not pressed, and the border outline's width and style in general. [...] final

Answer 1

OutlineButton 有一个名为 borderSide 的属性，你可以直接使用它:

        OutlineButton(
          borderSide: BorderSide(
              color: Colors.purple
            ),
        )

https://docs.flutter.io/flutter/material/OutlineButton/borderSide.html