flutter 引用外部包

官网例子

• pubspec.yaml 的 dependencies 引入 english_words

dependencies:
  flutter:
    sdk: flutter
  cupertino_icons: ^0.1.2
  english_words: ^3.1.0

• 执行

flutter packages get

• 在相关文件中

import 'package:english_words/english_words.dart';

import 'package:flutter/material.dart';
import 'package:english_words/english_words.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    var wordPair = WordPair.random();

    return MaterialApp(
      title: "欢迎来到Flutter",
      home: Scaffold(
        appBar: AppBar(
          title: Text("Welcome to Flutter"),
        ),
        body: Center(
          child: Text(wordPair.asPascalCase),
//          child: Text("Hello World"),
        ),
      ),
    );
  }
}