Flutter电话信息访问插件flutter_telephony的使用

flutter_telephony 是一个 Flutter 插件，用于访问设备的电话和信息功能。它允许你获取 SIM 卡信息、设备电话状态、发送短信等。以下是如何使用 flutter_telephony 插件的详细步骤。

1. 添加依赖

首先，你需要在 pubspec.yaml 文件中添加 flutter_telephony 插件的依赖：

dependencies:
  flutter:
    sdk: flutter
  flutter_telephony: ^0.1.0  # 请检查最新版本

然后运行 flutter pub get 来安装依赖。

2. 配置权限

为了访问电话和信息功能，你需要在 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.SEND_SMS"/>
<uses-permission android:name="android.permission.RECEIVE_SMS"/>
<uses-permission android:name="android.permission.READ_SMS"/>

3. 请求运行时权限

在 Android 6.0（API 23）及以上版本中，你需要在运行时请求权限。你可以使用 permission_handler 插件来请求权限。

首先，添加 permission_handler 依赖：

dependencies:
  permission_handler: ^10.0.0  # 请检查最新版本

然后，在代码中请求权限：

import 'package:permission_handler/permission_handler.dart';

Future<void> requestPermissions() async {
  var status = await Permission.phone.status;
  if (!status.isGranted) {
    await Permission.phone.request();
  }
}

4. 使用 flutter_telephony 插件

以下是一些常见的使用示例：

获取 SIM 卡信息

import 'package:flutter_telephony/flutter_telephony.dart';

Future<void> getSimInfo() async {
  FlutterTelephony flutterTelephony = FlutterTelephony();
  var simInfo = await flutterTelephony.getSimInfo();
  print('SIM Info: $simInfo');
}

获取设备电话状态

import 'package:flutter_telephony/flutter_telephony.dart';

Future<void> getPhoneState() async {
  FlutterTelephony flutterTelephony = FlutterTelephony();
  var phoneState = await flutterTelephony.getPhoneState();
  print('Phone State: $phoneState');
}

发送短信

import 'package:flutter_telephony/flutter_telephony.dart';

Future<void> sendSms() async {
  FlutterTelephony flutterTelephony = FlutterTelephony();
  await flutterTelephony.sendSms(phoneNumber: '1234567890', message: 'Hello, this is a test message!');
}

5. 处理权限请求结果

在请求权限后，你需要检查权限是否被授予，并根据结果执行相应的操作。

Future<void> checkAndRequestPermissions() async {
  var status = await Permission.phone.status;
  if (status.isGranted) {
    // 权限已授予，执行相关操作
    getSimInfo();
    getPhoneState();
    sendSms();
  } else {
    // 权限未授予，提示用户
    print('Permission not granted');
  }
}

6. 完整示例

以下是一个完整的示例，展示了如何使用 flutter_telephony 插件：

import 'package:flutter/material.dart';
import 'package:flutter_telephony/flutter_telephony.dart';
import 'package:permission_handler/permission_handler.dart';

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

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Flutter Telephony Example'),
        ),
        body: Center(
          child: ElevatedButton(
            onPressed: () {
              checkAndRequestPermissions();
            },
            child: Text('Get SIM Info and Send SMS'),
          ),
        ),
      ),
    );
  }
}

Future<void> checkAndRequestPermissions() async {
  var status = await Permission.phone.status;
  if (status.isGranted) {
    getSimInfo();
    getPhoneState();
    sendSms();
  } else {
    await Permission.phone.request();
  }
}

Future<void> getSimInfo() async {
  FlutterTelephony flutterTelephony = FlutterTelephony();
  var simInfo = await flutterTelephony.getSimInfo();
  print('SIM Info: $simInfo');
}

Future<void> getPhoneState() async {
  FlutterTelephony flutterTelephony = FlutterTelephony();
  var phoneState = await flutterTelephony.getPhoneState();
  print('Phone State: $phoneState');
}

Future<void> sendSms() async {
  FlutterTelephony flutterTelephony = FlutterTelephony();
  await flutterTelephony.sendSms(phoneNumber: '1234567890', message: 'Hello, this is a test message!');
}