Flutter表情数据插件emoji_data的使用

Flutter表情数据插件emoji_data的使用

标题

Flutter表情数据插件emoji_data的使用

内容

A Flutter package that provides all known emoji ICONS. You can customize your UI based on this data.

Content in: https://getemoji.com/

To use this plugin, add emoji_data as a dependency in your pubspec.yaml file.

import 'package:emoji_data/emoji_data.dart';
List<List<String>> emoji = [
    Emoji.smileys,
    Emoji.gesturesAndBodyParts,
    Emoji.peopleAndFantasy,
    Emoji.clothingAndAccessories,
    Emoji.paleEmojis,
    Emoji.creamWhiteEmojis,
    Emoji.brownEmojis,
    Emoji.blackEmojis,
    Emoji.animalsNature,
    Emoji.foodDrink,
    Emoji.activityAndSports,
    Emoji.travelPlaces,
    Emoji.objects,
    Emoji.symbols,
    Emoji.flags
];

示例代码

See the example directory for the complete sample app.

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

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

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

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  [@override](/user/override)
  State<MyHomePage> createState() => _MyHomePageState();
}

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

  void _incrementCounter() {
    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      _counter++;
    });
  }

  List<List<String>> emoji = [
    Emoji.smileys,
    Emoji.gesturesAndBodyParts,
    Emoji.peopleAndFantasy,
    Emoji.clothingAndAccessories,
    Emoji.paleEmojis,
    Emoji.creamWhiteEmojis,
    Emoji.brownEmojis,
    Emoji.blackEmojis,
    Emoji.animalsNature,
    Emoji.foodDrink,
    Emoji.activityAndSports,
    Emoji.travelPlaces,
    Emoji.objects,
    Emoji.symbols,
    Emoji.flags
  ];

  [@override](/user/override)
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appBar title.
        title: Text(widget.title),
      ),
      body: PageView.builder(
        itemBuilder: (BuildContext context, int index) {
          return SingleChildScrollView(
            child: Wrap(
              children: [
                ...emoji[index].map((e) => Text(
                      e,
                      style: const TextStyle(fontSize: 20),
                    ))
              ],
            ),
          );
        },
        controller: PageController(),
        itemCount: emoji.length,
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}