Flutter中防止行溢出容器

Question

我正在尝试将一行小部件放入一个容器中，但是当我将 mainaxisalignment 的属性设置为 MainAxisAlignment.spaceBetween 时它似乎溢出了。这会导致行（超赞字体图标）溢出容器的宽度。我不确定如何使行适合容器的宽度。尝试使用展开的小部件包装行时出现渲染错误。

不确定我哪里错了。

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(

          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Padding(
              padding: const EdgeInsets.all(8.0),
              child: Container(
                //clipBehavior: Clip.none,
                color: Colors.blue,
                child:
                Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Text(
                      'Hello'
                    ),
                    Icon(FontAwesomeIcons.solidMoneyBillAlt)
                  ],
                ),
              ),
            )
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}

当前结果：

Answer 1

这样试试

Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Expanded(

                      child: Text('Hello'),
                    ),
                    Container(
                      width: 50,
                      child: Icon(
                        FontAwesomeIcons.solidMoneyBillAlt,
                        // size: 30,
                      ),
                    )
                  ],
                )

SAmpleCode

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Padding(
              padding: const EdgeInsets.all(8.0),
              child: Container(
                //clipBehavior: Clip.none,
                color: Colors.blue,
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Expanded(

                      child: Text('Hello'),
                    ),
                    Container(
                      width: 50,
                      child: Icon(
                        FontAwesomeIcons.solidMoneyBillAlt,
                        // size: 30,
                      ),
                    )
                  ],
                ),
              ),
            )
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}

Answer 2

试试下面的代码希望对你有帮助。添加带有填充的图标。

   Padding(
          padding: const EdgeInsets.all(8.0),
          child: Container(
            color: Colors.blue,
            child: Row(
               mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                Text('Hello'),
                Padding(
                  padding: EdgeInsets.only(right: 12.0),
                  child: Icon(Icons.money),
                ),
              ],
            ),
          ),
        ),

结果屏幕->

Answer 3

更好的答案是使用 FaIcon 小部件而不是 Icon 小部件

   Row(
                      // mainAxisAlignment: MainAxisAlignment.spaceAround,
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                      children: [
                        Text('Hello'),
                        FaIcon(
                          FontAwesomeIcons.solidMoneyBillAlt,
                          size: 50,
                        )
                      ],
                    )

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