如何设置颤动切换按钮小部件的宽度

Question

我试过在容器内嵌套切换按钮并给它一个自定义宽度但是它没有用

ToggleButtons(
            borderColor: Colors.deepOrangeAccent[100],
            fillColor: Colors.deepOrange[100],
            borderRadius: BorderRadius.circular(8.0),
            selectedBorderColor: Colors.deepOrange,

            children: <Widget>[
              new Row(children: <Widget>[new Icon(Icons.whatshot,size: 16.0,color: Colors.red,),new SizedBox(width: 4.0,), new Text("HOT",style: TextStyle(color: Colors.red),)],),
              new Row(children: <Widget>[new Icon(Icons.invert_colors,size: 16.0,color: Colors.yellow[800],),new SizedBox(width: 4.0,), new Text("WARM",style: TextStyle(color: Colors.yellow[800]))],),
              new Row(children: <Widget>[new Icon(Icons.ac_unit,size: 16.0,color: Colors.blue,),new SizedBox(width: 4.0,), new Text("COLD",style: TextStyle(color: Colors.blue))],),
            ],
            onPressed: (int index) {
              setState(() {
                EnquiryModel.instance.setStatus(index.toString());
                for (int buttonIndex = 0; buttonIndex < isSelected.length; buttonIndex++) {
                  if (buttonIndex == index) {
                    isSelected[buttonIndex] = true;
                  } else {
                    isSelected[buttonIndex] = false;
                  }
                }
              });
            },
            isSelected: isSelected,
          )

Answer 1

我知道我的答案不是很好的解决方案，但它有效。

children: <Widget>[
    Container(width: (MediaQuery.of(context).size.width - 36)/3, child: new Row(mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[new Icon(Icons.whatshot,size: 16.0,color: Colors.red,),new SizedBox(width: 4.0,), new Text("HOT",style: TextStyle(color: Colors.red),)],)),
    Container(width: (MediaQuery.of(context).size.width - 36)/3, child: new Row(mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[new Icon(Icons.invert_colors,size: 16.0,color: Colors.yellow[800],),new SizedBox(width: 4.0,), new Text("WARM",style: TextStyle(color: Colors.yellow[800]))],)),
    Container(width: (MediaQuery.of(context).size.width - 36)/3, child: new Row(mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[new Icon(Icons.ac_unit,size: 16.0,color: Colors.blue,),new SizedBox(width: 4.0,), new Text("COLD",style: TextStyle(color: Colors.blue))],)),
]

我减少了 36，因为我的页面有页面填充。您可以通过设置更改它。

这里的结果：