Flutter LBS 到 KG 设计

Question

我正在尝试制作我在这里绘制的设计:

我的代码现在是:

  @override
  Widget build(BuildContext context) {
    // Build a Form widget using the _formKey we created above
    return Form(
      key: _formKey,
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: <Widget>[
          new Text(
            'LBS: ',
          ),
          TextFormField(
            validator: (value) {
              if (value.isEmpty) {
                return 'Please enter LBS';
              }
            },
          ),

          new Text(
            'KG: ',
          ),
          new Text(
            '{kg value} ',
          ),

          new Row(
              new RaisedButton(
                onPressed: null,
                child: Text('Convert'),
              ),
              new RaisedButton(
                onPressed: null,
                child: Text('Swap'),
              )

          ),
        ],
      ),
    );
  }

我的问题是我想在新行中放置两个按钮。“new Row(”不期望参数。

Answer 1

将你的按钮包裹成一个 child :[ ... ]

Row(
        children: <Widget>[
                    new RaisedButton(
                    onPressed: null,
                    child: Text('Convert'),
                  ),
                  new RaisedButton(
                    onPressed: null,
                    child: Text('Swap'),
            ],
        )