Flutter集合管理插件credify_collection_sdk的使用

Flutter 集合管理插件 credify_collection_sdk 的使用

本插件适用于 Flutter 应用程序，利用 Credify Collection SDK 从设备收集数据，目前仅支持 Android 平台。

该插件作为 Credify 原生 SDK 的封装层。

有关使用说明和更多详细信息，请访问官方文档 此处。

示例代码

import 'dart:convert';

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

import 'package:flutter/services.dart';
import 'package:credify_collection_sdk/credify_collection.dart';

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> {
  final _credifyPlugin = CredifyCollection();
  String collectedData = '';
  bool loading = false;

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

  Future<void> collectData() async {
    setState(() {
      loading = true;
    });
    const encoder = JsonEncoder.withIndent('  ');
    try {
      // 初始化插件，并传入应用令牌
      dynamic initializeResult = await _credifyPlugin.initialize(
          "<Place your application token here>");
      // 设置用户标识符
      await _credifyPlugin.setUserIdentifier("flutterSampleUser01");

      // 收集数据
      dynamic data = await _credifyPlugin.collectData();
      final object = json.decode(data);
      final formattedJSON = encoder.convert(object);

      setState(() {
        collectedData = formattedJSON;
        loading = false;
      });
    } on PlatformException catch (error) {
      setState(() {
        collectedData = encoder.convert(error);
        loading = false;
      });
    } catch (error) {
      collectedData = encoder.convert(error);
      loading = false;
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
          appBar: AppBar(
            title: const Text('Credify 插件示例应用'),
          ),
          body: Column(
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: [
                  // 请求权限按钮
                  TextButton(
                      onPressed: () => {_credifyPlugin.requestPermissions()},
                      child: Text("授予权限")),
                  // 收集数据按钮
                  TextButton(
                      onPressed: () async => {collectData()},
                      child: Text("收集数据"))
                ],
              ),
              Expanded(
                  flex: 1,
                  child: loading
                      ? const Center(child: CircularProgressIndicator()) // 加载指示器
                      : SingleChildScrollView(
                          scrollDirection: Axis.vertical, // 滚动方向
                          child: Text(
                            collectedData,
                            style: const TextStyle(
                              fontSize: 16.0,
                              color: Colors.black,
                            ),
                          ),
                        ))
            ],
          )),
    );
  }
}

代码解释

1. 导入必要的库

   import 'dart:convert';
   import 'package:flutter/material.dart';
   import 'dart:async';
   import 'package:flutter/services.dart';
   import 'package:credify_collection_sdk/credify_collection.dart';
   

2. 初始化应用

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

3. 创建主应用状态类

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

4. 定义应用状态

   class _MyAppState extends State<MyApp> {
     final _credifyPlugin = CredifyCollection();
     String collectedData = '';
     bool loading = false;
   

5. 初始化方法

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

6. 收集数据的方法

   Future<void> collectData() async {
     setState(() {
       loading = true;
     });
     const encoder = JsonEncoder.withIndent('  ');
     try {
       dynamic initializeResult = await _credifyPlugin.initialize("<Place your application token here>");
       await _credifyPlugin.setUserIdentifier("flutterSampleUser01");
   
       dynamic data = await _credifyPlugin.collectData();
       final object = json.decode(data);
       final formattedJSON = encoder.convert(object);
   
       setState(() {
         collectedData = formattedJSON;
         loading = false;
       });
     } on PlatformException catch (error) {
       setState(() {
         collectedData = encoder.convert(error);
         loading = false;
       });
     } catch (error) {
       collectedData = encoder.convert(error);
       loading = false;
     }
   }
   

7. 构建UI

   [@override](/user/override)
   Widget build(BuildContext context) {
     return MaterialApp(
       home: Scaffold(
           appBar: AppBar(
             title: const Text('Credify 插件示例应用'),
           ),
           body: Column(
             children: [
               Row(
                 mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                 children: [
                   TextButton(
                       onPressed: () => {_credifyPlugin.requestPermissions()},
                       child: Text("授予权限")),
                   TextButton(
                       onPressed: () async => {collectData()},
                       child: Text("收集数据"))
                 ],
               ),
               Expanded(
                   flex: 1,
                   child: loading
                       ? const Center(child: CircularProgressIndicator())
                       : SingleChildScrollView(
                           scrollDirection: Axis.vertical,
                           child: Text(
                             collectedData,
                             style: const TextStyle(
                               fontSize: 16.0,
                               color: Colors.black,
                             ),
                           ),
                         ))
             ],
           )),
     );
   }