颤动的桌子结构

Question

我想得到这个结构:

-----------------------------------------------------------------------------------
item 1                                 item 2
item 3                                 item 4
-----------------------------------------------------------------------------------

基本上我需要一个Table带2 columns的2 rows,每个2 column,但这是我得到的效果:

我的代码:

new Container(
          decoration: new BoxDecoration(color: Colors.grey),
          child: new Row(
            children: <Widget>[

              new Column(
                children: <Widget>[
                  new Container(
                    decoration: new BoxDecoration(color: Colors.red),
                    child: new Text("item 1"),
                  ),
                  new Container(
                    decoration: new BoxDecoration(color: Colors.amber),
                    child: new Text("item 3"),
                  ),
                ],
              ),

              new Column(
                children: <Widget>[
                  new Container(
                    decoration: new BoxDecoration(color: Colors.green),
                    child: new Text("item 2"),
                  ),
                  new Container(
                    decoration: new BoxDecoration(color: Colors.teal),
                    child: new Text("item 4"),
                  )
                ],
              )

            ],
          ),
        )

有任何想法吗？我希望每个人column都占用一半的width空间.在Android我使用该weight属性,就是这样.

Answer 1

我建议使用Table Widget来保持一致性和易用性，因为嵌套的行和列可能会有些混乱并且缩进很远。

https://docs.flutter.io/flutter/widgets/Table-class.html

   ...
Table(children: [
  TableRow(children: [
    Text("item 1"),
    Text("item 2"),
  ]),
  TableRow(children:[
    Text("item 3"),
    Text("item 4"),
  ]),
]);

Answer 2

使用flex(默认情况下为1)您可以将两列分开,然后使用crossAxisAlignment它们在开头对齐它们:

  new Container(
    decoration: new BoxDecoration(color: Colors.grey),
    child: new Row(
      children: <Widget>[
        Expanded(
          child: new Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: <Widget>[
              new Container(
                decoration: new BoxDecoration(color: Colors.red),
                child: new Text("item 1"),
              ),
              new Container(
                decoration: new BoxDecoration(color: Colors.amber),
                child: new Text("item 3"),
              ),
            ],
          ),
        ),
        Expanded(
          child: new Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: <Widget>[
              new Container(
                decoration: new BoxDecoration(color: Colors.green),
                child: new Text("item 2"),
              ),
              new Container(
                decoration: new BoxDecoration(color: Colors.teal),
                child: new Text("item 4"),
              )
            ],
          ),
        )
      ],
    ),
  )