Flutter标签管理插件micco_platbook_tagging的使用

Flutter标签管理插件micco_platbook_tagging的使用

本插件专为实现播放类型预测而设计。

示例代码

以下是一个完整的示例代码，展示了如何在Flutter应用中使用micco_platbook_tagging插件。

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

import 'package:flutter/services.dart';
import 'package:micco_platbook_tagging/micco_platbook_tagging.dart';
import 'dart:developer' as developer;

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

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

  [@override](/user/override)
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = '未知';
  final _miccoPlatbookTaggingPlugin = MiccoPlatbookTagging();

  [@override](/user/override)
  void initState() {
    super.initState();
    initPlatformState();
  }

  // 平台消息是异步的，所以我们初始化在一个异步方法中。
  Future<void> initPlatformState() async {
    String platformVersion;
    // 平台消息可能会失败，所以我们使用try/catch处理PlatformException。
    // 我们还处理消息可能返回null的情况。
    try {
      platformVersion =
          await _miccoPlatbookTaggingPlugin.getPlatformVersion() ?? '未知平台版本';
    } on PlatformException {
      platformVersion = '获取平台版本失败。';
    }

    // 如果小部件从树中移除而异步平台消息正在飞行，我们希望丢弃回复而不是调用setState来更新我们的不存在的外观。
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('插件示例应用'),
        ),
        body: Column(children: [
          MaterialButton(onPressed: loadLodel, child: const Text('下载')),
          MaterialButton(onPressed: startPrediction, child: const Text('预测'))
        ],),
      ),
    );
  }

  loadLodel () {
    _miccoPlatbookTaggingPlugin.loadLodel();
  }

  startPrediction () {
    _miccoPlatbookTaggingPlugin.predict({"1": "boeuf", "2": "shrimp"})
    .then(print)
    .catchError((e) => developer.log(e.toString(), error: e));
  }
}

代码解释

1. 导入必要的库：

   import 'package:flutter/material.dart';
   import 'dart:async';
   import 'package:flutter/services.dart';
   import 'package:micco_platbook_tagging/micco_platbook_tagging.dart';
   import 'dart:developer' as developer;
   

2. 定义主应用类：

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

3. 定义状态管理类：

   class MyApp extends StatefulWidget {
     const MyApp({super.key});
   
     [@override](/user/override)
     State<MyApp> createState() => _MyAppState();
   }
   

4. 初始化平台状态：

   class _MyAppState extends State<MyApp> {
     String _platformVersion = '未知';
     final _miccoPlatbookTaggingPlugin = MiccoPlatbookTagging();
   
     [@override](/user/override)
     void initState() {
       super.initState();
       initPlatformState();
     }
   
     Future<void> initPlatformState() async {
       String platformVersion;
       try {
         platformVersion =
             await _miccoPlatbookTaggingPlugin.getPlatformVersion() ?? '未知平台版本';
       } on PlatformException {
         platformVersion = '获取平台版本失败。';
       }
   
       if (!mounted) return;
   
       setState(() {
         _platformVersion = platformVersion;
       });
     }
   

5. 构建UI：

   [@override](/user/override)
   Widget build(BuildContext context) {
     return MaterialApp(
       home: Scaffold(
         appBar: AppBar(
           title: const Text('插件示例应用'),
         ),
         body: Column(children: [
           MaterialButton(onPressed: loadLodel, child: const Text('下载')),
           MaterialButton(onPressed: startPrediction, child: const Text('预测'))
         ],),
       ),
     );
   }
   

6. 加载LODEL：

   loadLodel () {
     _miccoPlatbookTaggingPlugin.loadLodel();
   }
   

7. 开始预测：

   startPrediction () {
     _miccoPlatbookTaggingPlugin.predict({"1": "boeuf", "2": "shrimp"})
     .then(print)
     .catchError((e) => developer.log(e.toString(), error: e));
   }