How does Flutter integrate third-party plug-ins

https://pub.dev/flutter is Google's official Dart Packages warehouse, similar to the npm warehouse in node, we can find the packages and plug-ins we need on it, and we can also publish our packages and plug-ins to pub, which we use
here One is called english_words , it contains thousands of commonly used English words and provides some functions for comparison,

add dependencies

Add dependencies in pubspec.yaml file

pubspec.yaml

 

We save the pubspec.yaml file, which will automatically install the dependency package into the project, and the console outputs the following content

 

console output

Next we can use this dependency package

lib/main.dart

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

//main是入口函数
void main() => runApp(MyApp());

class MyApp extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
    // 生成一个随机的单词
    final wordPair = new WordPair.random();
    return new MaterialApp(
      title: 'Hello Flutter',
      home: new Scaffold(    
        appBar: new AppBar(
          title: new Text('Hello Flutter Title'),
        ),
        body: new Center(
          child: new Text(wordPair.asPascalCase), //asPascalCase以简单字符串的形式返回单词对，每个单词大写
        ),
      ),
    );
  }
}

In this way, every time we press R, the page re-renders, we will see a random English word

If the version sdk does not match, modify the plug-in version number to match your own dartsdk

environment:
  sdk: ">=2.0.0-dev.68.0 <3.0.0"

Author: iDevOps
Link: https://www.jianshu.com/p/47143557a550
Source: Jianshu
The copyright belongs to the author. For commercial reprint, please contact the author for authorization, for non-commercial reprint, please indicate the source.