Flutter TextButton 移除内边距和内边距

我刚刚更新了Ffltter中的代码，使用TextButton而不是旧的FlatButton.不过，我想不出如何设置按钮的宽度和高度.

我有两个问题.第一个是我现在有了这个图标按钮:

TextButton.icon(
    label: Container(),
    style: TextButton.styleFrom(padding: EdgeInsets.all(0),
        backgroundColor: Colors.black26),
        icon: Icon(Icons.share, color: Theme.of(context).primaryColor),
        onPressed: () {}),

which loos like this:

我想不出怎么go 掉左右两边的垫子.虽然我确实将样式内部的填充设置为零.

我的第二个问题是我有一个像这样的按钮:

ButtonTheme(
    materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
    height: 10,
    minWidth: 15,
    padding: EdgeInsets.only(top: 5, bottom: 5, right: 5, left: 5),
    child: FlatButton(
      color: Colors.white.withOpacity(0.9),
      child: <MyChild>,
      onPressed: () {},
      shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(12.0),
          side: BorderSide(
              color: condition
                  ? Theme.of(context).primaryColor
                  : widget.color != null
                      ? widget.color
                      : Colors.black54,
              width: 0.5)),
    ));
}

and it looked like this:

现在我将代码更新为:

OutlinedButton(
    style: OutlinedButton.styleFrom(
      tapTargetSize: MaterialTapTargetSize.shrinkWrap,
      padding: EdgeInsets.only(top: 0, bottom: 0, right: 5, left: 5),
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12.0)),
      side: BorderSide(
          width: 0.5,
          color: condition
              ? Theme.of(context).primaryColor
              : widget.color != null
                  ? widget.color
                  : Colors.black54),
      primary: Colors.white.withOpacity(0.9),
    ),
    child: <MyChild>,
    onPressed: () {})

But it looks like this now: The padding on top/bottom is too much but I can't figure out how to minimize it.

有什么建议吗？非常感谢.

Edit:我try 使用OutlinedButtonTheme，但这不允许我设置高度等.