Flutter近距离感应插件proxity_flutter的使用

简介

proxity_flutter 是一个用于 Flutter 的插件，旨在提供近距离感应的功能。通过该插件，开发者可以轻松集成设备之间的近距离通信功能。

开始使用

1. 添加依赖

在 pubspec.yaml 文件中添加 proxity_flutter 依赖：

dependencies:
  proxity_flutter: ^1.0.0

运行以下命令以获取依赖：

flutter pub get

2. 初始化插件

在初始化插件时，需要提供 apiKey 和 deviceId。这些信息通常由服务提供商提供。

以下是完整的示例代码：

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

import 'package:flutter/services.dart';
import 'package:proxity_flutter/proxity_flutter.dart'; // 导入插件

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

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

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

class _MyAppState extends State<MyApp> {

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

  // 初始化 Proxity 插件
  Future<void> initPlatformState() async {
    try {
      // 调用 initialize 方法，传入 apiKey 和 deviceId
      final ok = await ProxityFlutter.initialize(
        apiKey: "76C3A87B-6628-4460-BFE9-EED00A45B1FF", // 替换为实际的 apiKey
        deviceId: "1E85E16A-5F22-4B32-8941-CE70AD7544BA", // 替换为实际的 deviceId
      );

      // 检查初始化是否成功
      if (ok == null || !ok) {
        print('Failed to initialize Proxity client');
      } else {
        print('Proxity client initialized successfully');
      }
    } on PlatformException catch (e) {
      print('Error initializing Proxity client: $e');
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Proxity 插件示例'),
        ),
        body: const Center(
          child: Text('近距离感应功能已启动！'),
        ),
      ),
    );
  }
}

3. 接收消息

插件提供了事件通道来接收来自其他设备的消息。可以通过监听 EventChannel 来处理接收到的数据。

以下是监听消息的代码：

final messsages = const EventChannel("eu.proxity.messages")
  .receiveBroadcastStream();

messsages.listen((ids) => print(ids)); // 打印接收到的消息

完整示例代码

以下是完整的示例代码，包含了初始化、监听消息等功能：

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

import 'package:flutter/services.dart';
import 'package:proxity_flutter/proxity_flutter.dart';

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

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

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

class _MyAppState extends State<MyApp> {

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

  // 初始化 Proxity 插件
  Future<void> initPlatformState() async {
    try {
      final ok = await ProxityFlutter.initialize(
        apiKey: "76C3A87B-6628-4460-BFE9-EED00A45B1FF",
        deviceId: "1E85E16A-5F22-4B32-8941-CE70AD7544BA",
      );

      if (ok == null || !ok) {
        print('Failed to initialize Proxity client');
      } else {
        print('Proxity client initialized successfully');

        // 启动插件
        ProxityFlutter.start();

        // 监听消息
        final messsages = const EventChannel("eu.proxity.messages")
          .receiveBroadcastStream();
        messsages.listen((ids) => print(ids));
      }
    } on PlatformException catch (e) {
      print('Error initializing Proxity client: $e');
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Proxity 插件示例'),
        ),
        body: const Center(
          child: Text('近距离感应功能已启动！'),
        ),
      ),
    );
  }
}