如何在 Column 类中将小部件对齐到顶部？

Question

我应该更改哪个参数以使“childen : [...]”的值适合 UI 顶部？（目前他们正在填充容器中的所有空闲空间）。预先感谢您的解释！代码片段：

return new Container(
  child: new Column (
    crossAxisAlignment: CrossAxisAlignment.start,
    mainAxisSize: MainAxisSize.min,


    children: <Widget>[
      new Text('\$$priceUsd\n'),
  new Text('1 hour: $percentChange1h%',
    style: new TextStyle(
        color: changeColor),


    )],
  )
);

Answer 1

只需将主轴对齐设置为开始

return new Container(

  child: new Column (
    crossAxisAlignment: CrossAxisAlignment.start,
    mainAxisAlignment: MainAxisAlignment.start,
    mainAxisSize: MainAxisSize.min,


    children: <Widget>[
      new Text('\$$priceUsd\n'),
      new Text('1 hour: $percentChange1h%',
        style: new TextStyle(color: changeColor),
    )],
  )
);