Flutter电话呼叫处理插件flutter_phone_call_handler的使用

Flutter电话呼叫处理插件flutter_phone_call_handler的使用

允许在Flutter中处理电话呼叫,例如结束通话。

开始使用

首先,确保您已经添加了flutter_phone_call_handler插件到您的项目中。然后您可以按照以下步骤进行操作:

import 'package:flutter_phone_call_handler/flutter_phone_call_handler.dart';

final _flutterPhoneCallHandlerPlugin = FlutterPhoneCallHandler();

// 请求权限
await _flutterPhoneCallHandlerPlugin.requestPermissions();

// 结束通话
var success = await _flutterPhoneCallHandlerPlugin.endCall();

Android

在Android上,您需要添加以下权限到您的AndroidManifest.xml文件中:

<uses-permission android:name="android.permission.ANSWER_PHONE_CALLS" />

完整示例代码

以下是一个完整的示例,展示了如何使用flutter_phone_call_handler插件来处理电话呼叫。

示例代码

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

import 'package:flutter/services.dart';
import 'package:flutter_phone_call_handler/flutter_phone_call_handler.dart';
import 'package:telephony/telephony.dart';
import 'package:url_launcher/url_launcher.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 _flutterPhoneCallHandlerPlugin = FlutterPhoneCallHandler();

  // 测试电话号码
  final testPhoneNumber = '0393067227';
  var calling = false;

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

  // 初始化插件
  init() async {
    await _flutterPhoneCallHandlerPlugin.requestPermissions();
  }

  // 开始拨打电话
  startCall() async {
    final Telephony telephony = Telephony.instance;
    await telephony.dialPhoneNumber(testPhoneNumber);
  }

  // 结束通话
  Future<void> endCall() async {
    try {
      var success = await _flutterPhoneCallHandlerPlugin.endCall();
      if (success) {
        print("Call ended successfully");
      } else {
        print("Failed to end call");
      }
    } on PlatformException {
      print("Failed to end call");
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('插件示例应用'),
        ),
        body: Center(
          child: ElevatedButton(
            onPressed: () {
              if (calling) {
                endCall(); // 结束通话
              } else {
                startCall(); // 开始拨打电话
              }
              setState(() {
                calling = !calling; // 切换按钮状态
              });
            },
            child: Text(calling ? '结束' : '拨打'),
          ),
        ),
      ),
    );
  }
}

更多关于Flutter电话呼叫处理插件flutter_phone_call_handler的使用的实战教程也可以访问 https://www.itying.com/category-92-b0.html

1 回复

更多关于Flutter电话呼叫处理插件flutter_phone_call_handler的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html


flutter_phone_call_handler 是一个用于处理电话呼叫事件的 Flutter 插件。它允许你在 Flutter 应用中监听电话的呼入、呼出和挂断事件。这个插件在需要根据电话状态执行特定操作的应用中非常有用,例如在呼叫期间暂停媒体播放或在呼叫结束后恢复操作。

安装

首先,你需要在 pubspec.yaml 文件中添加 flutter_phone_call_handler 依赖:

dependencies:
  flutter:
    sdk: flutter
  flutter_phone_call_handler: ^1.0.0  # 请使用最新版本

然后运行 flutter pub get 来安装依赖。

使用

  1. 导入包

    在你的 Dart 文件中导入 flutter_phone_call_handler 包:

    import 'package:flutter_phone_call_handler/flutter_phone_call_handler.dart';
    
  2. 初始化插件

    在使用插件之前,需要先初始化它。通常你可以在 initState 方法中进行初始化:

    class MyApp extends StatefulWidget {
      [@override](/user/override)
      _MyAppState createState() => _MyAppState();
    }
    
    class _MyAppState extends State<MyApp> {
      late PhoneCallHandler _phoneCallHandler;
    
      [@override](/user/override)
      void initState() {
        super.initState();
        _phoneCallHandler = PhoneCallHandler();
        _initPhoneCallHandler();
      }
    
      void _initPhoneCallHandler() async {
        await _phoneCallHandler.initialize();
        _phoneCallHandler.onCallStateChanged.listen((callState) {
          _handleCallState(callState);
        });
      }
    
      void _handleCallState(CallState callState) {
        switch (callState) {
          case CallState.incoming:
            print("Incoming call");
            break;
          case CallState.outgoing:
            print("Outgoing call");
            break;
          case CallState.ended:
            print("Call ended");
            break;
        }
      }
    
      [@override](/user/override)
      Widget build(BuildContext context) {
        return MaterialApp(
          home: Scaffold(
            appBar: AppBar(
              title: Text('Phone Call Handler Example'),
            ),
            body: Center(
              child: Text('Check console for call state changes'),
            ),
          ),
        );
      }
    }
    
  3. 处理电话状态变化

    在上面的代码中,_handleCallState 方法负责处理电话状态的变化。你可以根据 callState 的值执行不同的操作。

    • CallState.incoming: 当有电话呼入时触发。
    • CallState.outgoing: 当有电话呼出时触发。
    • CallState.ended: 当电话结束时触发。
  4. 释放资源

    在不需要监听电话状态时,确保释放资源。你可以在 dispose 方法中调用 dispose 方法:

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

注意事项

  • 权限: 在某些平台上,可能需要特定的权限来监听电话状态。确保在 Android 的 AndroidManifest.xml 文件中添加以下权限:

    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <uses-permission android:name="android.permission.CALL_PHONE"/>
    
  • 平台支持: flutter_phone_call_handler 插件主要支持 Android 和 iOS 平台。在使用之前,请确保你的目标平台支持该功能。

示例

以下是一个完整的示例,展示了如何使用 flutter_phone_call_handler 插件来监听电话状态变化:

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

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

class MyApp extends StatefulWidget {
  [@override](/user/override)
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  late PhoneCallHandler _phoneCallHandler;

  [@override](/user/override)
  void initState() {
    super.initState();
    _phoneCallHandler = PhoneCallHandler();
    _initPhoneCallHandler();
  }

  void _initPhoneCallHandler() async {
    await _phoneCallHandler.initialize();
    _phoneCallHandler.onCallStateChanged.listen((callState) {
      _handleCallState(callState);
    });
  }

  void _handleCallState(CallState callState) {
    switch (callState) {
      case CallState.incoming:
        print("Incoming call");
        break;
      case CallState.outgoing:
        print("Outgoing call");
        break;
      case CallState.ended:
        print("Call ended");
        break;
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Phone Call Handler Example'),
        ),
        body: Center(
          child: Text('Check console for call state changes'),
        ),
      ),
    );
  }

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