我试图创建一行,其中中心文本有一个最大大小,如果文本内容太大,它适合大小。

我插入TextOverflow。属性来缩短文本并插入三个点…但这并不奏效。

main.dart

import 'package:flutter/material.dart';

void main() {
runApp(new MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      home: new HomePage(),
    );
  }
}

class HomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) => new Scaffold(
    appBar: new AppBar(
      backgroundColor: new Color(0xFF26C6DA),
    ),
    body: new ListView  (
      children: <Widget>[
        new Card(
          child: new Container(
            padding: new EdgeInsets.symmetric(horizontal: 16.0, vertical: 18.0),
            child: new Row(
              children: <Widget>[
                new Container(
                  padding: new EdgeInsets.only(right: 24.0),
                  child: new CircleAvatar(
                    backgroundColor: new Color(0xFFF5F5F5),
                    radius: 16.0,
                  )
                ),
                new Container(
                  padding: new EdgeInsets.only(right: 13.0),
                  child: new Text(
                    'Text lar...',
                    overflow: TextOverflow.ellipsis,
                    style: new TextStyle(
                      fontSize: 13.0,
                      fontFamily: 'Roboto',
                      color: new Color(0xFF212121),
                      fontWeight: FontWeight.bold,
                    ),
                  ),
                ),
                new Container(
                  child: new Column(
                    crossAxisAlignment: CrossAxisAlignment.end,
                    children: <Widget>[
                      new Row(
                        children: <Widget>[
                          new Text(
                            'Bill  ',
                            style: new TextStyle(
                              fontSize: 12.0,
                              fontFamily: 'Roboto',
                              color: new Color(0xFF9E9E9E)
                            ),
                          ),
                          new Text(
                            '\$ -999.999.999,95',
                            style: new TextStyle(
                              fontSize: 14.0,
                              fontFamily: 'Roboto',
                              color: new Color(0xFF212121)
                            ),
                          ),
                        ],
                      ),
                      new Row(
                        children: <Widget>[
                          new Text(
                            'Limit  ',
                            style: new TextStyle(
                              fontSize: 12.0,
                              fontFamily: 'Roboto',
                              color: new Color(0xFF9E9E9E)
                            ),
                          ),
                          new Text(
                            'R\$ 900.000.000,95',
                            style: new TextStyle(
                              fontSize: 14.0,
                              fontFamily: 'Roboto',
                              color: new Color(0xFF9E9E9E)
                            ),
                          ),
                        ],
                      ),
                    ]
                  )
                )
              ],
            ),
          )
        ),
      ]
    )
  );
}

结果:

预期:


当前回答

根据您的情况,我认为这是以下最好的方法。

final maxWidth = MediaQuery.of(context).size.width * 0.4;
Container(
        textAlign: TextAlign.center,
        child: Text('This is long text',
        constraints: BoxConstraints(maxWidth: maxWidth),
),

其他回答

行内文本

1. 第1列的文本首选项>第2列

Row(
  crossAxisAlignment: CrossAxisAlignment.start,
  children: const [
    Text(
      "This is very very  long text in column 1 of Row",
      style: TextStyle(
          overflow: TextOverflow.ellipsis, backgroundColor: Colors.green),
    ),
    Flexible(
      child: Text("This is very very  long text in column 2 of Row",
          style: TextStyle(
              overflow: TextOverflow.ellipsis,
              backgroundColor: Colors.yellow)),
    )
  ],
)

2. 第2列的文本首选项>第1列

   Row(
     crossAxisAlignment: CrossAxisAlignment.start,
     children: const [
        Flexible(
          child: Text(
             "This is very very  long text in column 1 of Row",
             style: TextStyle(overflow: TextOverflow.ellipsis,  backgroundColor: Colors.green),
          ),
        ),
       Text("This is very very  long text in column 2 of Row",
        style: TextStyle(overflow: TextOverflow.ellipsis, backgroundColor: Colors.yellow))
    ],
   )

3.相同的喜好

Row(
  crossAxisAlignment: CrossAxisAlignment.start,
  children: const [
    Flexible(
      child: Text(
        "This is very very  long text in column 1 of Row",
        style: TextStyle(
            overflow: TextOverflow.ellipsis, backgroundColor: Colors.green),
      ),
    ),
    Flexible(
      child: Text("This is very very  long text in column 2 of Row",
          style: TextStyle(
              overflow: TextOverflow.ellipsis,
              backgroundColor: Colors.yellow)),
    )
  ],
)

列内的文本

定义maxLine属性。

Column(
  crossAxisAlignment: CrossAxisAlignment.start,
  children: const [
    Text(
      "This is very very very very very very very very very very very very very very very very very  long text in Row 1 of Column",
      maxLines: 2,
      style: TextStyle(
          backgroundColor: Colors.green, overflow: TextOverflow.ellipsis),
    ),
    Text("This is very very  long text in Row 2 of Column",
        style: TextStyle(
            overflow: TextOverflow.ellipsis,
            backgroundColor: Colors.yellow))
  ],
)

注意:如果你的要求是显示条目内容而不溢出,但不打乱约束,删除溢出属性,但保持Flexible不变:

Row(
  crossAxisAlignment: CrossAxisAlignment.start,
  children: const [
    Flexible(
      child: Text(
        "This is very very  long text in column 1 of Row",
        style: TextStyle(backgroundColor: Colors.green),
      ),
    ),
    Flexible(
      child: Text("This is very very  long text in column 2 of Row",
          style: TextStyle(
              overflow: TextOverflow.ellipsis,
              backgroundColor: Colors.yellow)),
    )
  ],
)

我多次使用列中行来解决这样的问题。这里有一个解决这个问题的好方法:

 return Column(
  children: [
    Row(
      children: const [
        Icon(Icons.close, color: Colors.red), // an example icon            
        // use the flexible widget above the padding
        Flexible(
          child: Padding(
            padding: EdgeInsets.symmetric(horizontal: 10.0),
            child: Text(
              "Exemple of text",
              overflow: TextOverflow.ellipsis, // I used ellipsis, but it works with others (fade, clip, etc.)
              maxLines: 1,
            ),
          ),
        ),
      ],
    )
  ],
);

注意,我将Flexible放在填充的上方,因为当文本增加时,填充也会破坏屏幕。只把它放在文本中是没有用的。希望这能有所帮助。

您可以使用此代码片段来显示带有省略号的文本

Text(
    "Introduction to Very very very long text",
    maxLines: 1,
    overflow: TextOverflow.ellipsis,
    softWrap: false,
    style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold),
),

修复一行内文本部件溢出的一种方法,例如聊天消息可以是很长的一行。你可以创建一个Container和一个带有maxWidth的BoxConstraint。

            Container(
              constraints: BoxConstraints(maxWidth: 200),
                child: Text(
                  (chatName == null) ? " ": chatName,
                  style: TextStyle(
                      fontWeight: FontWeight.w400,
                      color: Colors.black87,
                      fontSize: 17.0),
                )
            ),

我们首先用容器包装文本,然后用灵活的小部件包装容器,使文本省略号走到第二行

 Container(

            height: SizeConfig.blockSizeVertical * 10,
            width: SizeConfig.blockSizeHorizontal * 88,

            child: Row(
              crossAxisAlignment:
              CrossAxisAlignment.start,
              children: [
                PicClipper(height: 50, width:50, circularRadius: 30, circularImage:imageUrl[index]),
                SizedBox(
                  width:
                  SizeConfig.blockSizeHorizontal * 3,
                ),
                Flexible(
                  child: Container(
                    child: const
                    AppText
                      (
                      fontSize: 12,
                      fontWeight: FontWeight.normal,
                      text:
                      'Lorem ipsum dolor sit amet,consectetur adipiscing elit.Lorem ipsum dolor sit amet,consectetur adipiscing elit.',
                      fontStyle: FontStyle.normal,
                      textColor: AppColors.blackTextColor,
                      textOverflow: TextOverflow.ellipsis,
                      fontFamily: "Poppins",
                      maxLine: 3,
                      textAlign: TextAlign.start,
                    ),
                  ),
                ),

              ],
            ),
          ),