1.增加获取手机有几个手机卡的功能

2.使用指定的手机卡发送短信

android/src/main/kotlin/com/example/flutter_sms/FlutterSmsPlugin.kt

@@ -8,6 +8,7 @@ import android.content.pm.PackageManager
 import android.net.Uri
 import android.os.Build
 import android.telephony.SmsManager
+import android.telephony.SubscriptionManager
 import android.util.Log
 import androidx.annotation.NonNull
 import io.flutter.embedding.engine.plugins.FlutterPlugin
@@ -73,10 +74,67 @@ class FlutterSmsPlugin: FlutterPlugin, MethodCallHandler, ActivityAware {
           sendSMS(result, recipients, message!!, sendDirect)
         }
         "canSendSMS" -> result.success(canSendSMS())
+      "getAvailableSIMs" -> result.success(getAvailableSIMs())
+      "sendSMSWithSubscriptionId" -> {
+        val message = call.argument<String?>("message") ?: ""
+        val recipients = call.argument<String?>("recipients") ?: ""
+        val subscriptionId = call.argument<Int?>("subscriptionId") ?: -1
+        sendSMSWithSubscriptionId(result, recipients, message, subscriptionId)
+      }
         else -> result.notImplemented()
     }
   }
 
+  @TargetApi(Build.VERSION_CODES.LOLLIPOP_MR1)
+  private fun sendSMSWithSubscriptionId(result: Result, phones: String, message: String, subscriptionId: Int) {
+    // 创建短信发送状态的 PendingIntent
+    val sentIntent = PendingIntent.getBroadcast(activity, 0, Intent("SMS_SENT_ACTION"), PendingIntent.FLAG_IMMUTABLE)
+    // 根据 subscriptionId 获取对应的 SmsManager 实例
+    val smsManager = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1 && subscriptionId != -1) {
+      SmsManager.getSmsManagerForSubscriptionId(subscriptionId)
+    } else {
+      SmsManager.getDefault()
+    }
+    // 将电话号码字符串按分号分割成多个号码
+    val numbers = phones.split(";")
+
+    for (num in numbers) {
+      // 打印短信长度信息
+      Log.d("Flutter SMS", "msg.length() : " + message.toByteArray().size)
+      if (message.toByteArray().size > 80) {
+        // 短信长度超过 80 字节，分割短信
+        val partMessage = smsManager.divideMessage(message)
+        // 发送分割后的多条短信
+        smsManager.sendMultipartTextMessage(num, null, partMessage, null, null)
+      } else {
+        // 短信长度未超过 80 字节，直接发送单条短信
+        smsManager.sendTextMessage(num, null, message, sentIntent, null)
+      }
+    }
+    // 短信发送成功，返回结果
+    result.success("SMS Sent with subscription ID!")
+  }
+
+
+  // 修改 getAvailableSIMs 方法，只返回 SIM 卡 ID
+  @TargetApi(Build.VERSION_CODES.LOLLIPOP_MR1)
+  private fun getAvailableSIMs(): List<Int> {
+    val availableSIMs = mutableListOf<Int>()
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {
+      val subscriptionManager = activity?.getSystemService(Activity.TELEPHONY_SUBSCRIPTION_SERVICE) as? SubscriptionManager
+      if (subscriptionManager != null) {
+        val subscriptions = subscriptionManager.activeSubscriptionInfoList
+        if (subscriptions != null) {
+          for (subscription in subscriptions) {
+            availableSIMs.add(subscription.subscriptionId)
+          }
+        }
+      }
+    }
+    return availableSIMs
+  }
+
+
   @TargetApi(Build.VERSION_CODES.ECLAIR)
   private fun canSendSMS(): Boolean {
     if (!activity!!.packageManager.hasSystemFeature(PackageManager.FEATURE_TELEPHONY))

example/.flutter-plugins-dependencies

@@ -1 +1 @@
-{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"flutter_sms","path":"/home/david/code/forks/flutter_sms/","native_build":true,"dependencies":[],"dev_dependency":false},{"name":"url_launcher_ios","path":"/home/david/.pub-cache/hosted/pub.dev/url_launcher_ios-6.3.2/","native_build":true,"dependencies":[],"dev_dependency":false}],"android":[{"name":"flutter_sms","path":"/home/david/code/forks/flutter_sms/","native_build":true,"dependencies":[],"dev_dependency":false},{"name":"url_launcher_android","path":"/home/david/.pub-cache/hosted/pub.dev/url_launcher_android-6.3.14/","native_build":true,"dependencies":[],"dev_dependency":false}],"macos":[{"name":"url_launcher_macos","path":"/home/david/.pub-cache/hosted/pub.dev/url_launcher_macos-3.2.2/","native_build":true,"dependencies":[],"dev_dependency":false}],"linux":[{"name":"url_launcher_linux","path":"/home/david/.pub-cache/hosted/pub.dev/url_launcher_linux-3.2.1/","native_build":true,"dependencies":[],"dev_dependency":false}],"windows":[{"name":"url_launcher_windows","path":"/home/david/.pub-cache/hosted/pub.dev/url_launcher_windows-3.1.4/","native_build":true,"dependencies":[],"dev_dependency":false}],"web":[{"name":"flutter_sms","path":"/home/david/code/forks/flutter_sms/","dependencies":[],"dev_dependency":false},{"name":"url_launcher_web","path":"/home/david/.pub-cache/hosted/pub.dev/url_launcher_web-2.4.0/","dependencies":[],"dev_dependency":false}]},"dependencyGraph":[{"name":"flutter_sms","dependencies":["url_launcher"]},{"name":"url_launcher","dependencies":["url_launcher_android","url_launcher_ios","url_launcher_linux","url_launcher_macos","url_launcher_web","url_launcher_windows"]},{"name":"url_launcher_android","dependencies":[]},{"name":"url_launcher_ios","dependencies":[]},{"name":"url_launcher_linux","dependencies":[]},{"name":"url_launcher_macos","dependencies":[]},{"name":"url_launcher_web","dependencies":[]},{"name":"url_launcher_windows","dependencies":[]}],"date_created":"2025-02-21 17:07:22.951360","version":"3.29.0","swift_package_manager_enabled":{"ios":false,"macos":false}}
+{"info":"This is a generated file; do not edit or check into version control.","plugins":{"ios":[{"name":"flutter_sms","path":"/home/kun/桌面/flutter_sms/","native_build":true,"dependencies":[],"dev_dependency":false},{"name":"url_launcher_ios","path":"/home/kun/.pub-cache/hosted/pub.dev/url_launcher_ios-6.3.2/","native_build":true,"dependencies":[],"dev_dependency":false}],"android":[{"name":"flutter_sms","path":"/home/kun/桌面/flutter_sms/","native_build":true,"dependencies":[],"dev_dependency":false},{"name":"url_launcher_android","path":"/home/kun/.pub-cache/hosted/pub.dev/url_launcher_android-6.3.14/","native_build":true,"dependencies":[],"dev_dependency":false}],"macos":[{"name":"url_launcher_macos","path":"/home/kun/.pub-cache/hosted/pub.dev/url_launcher_macos-3.2.2/","native_build":true,"dependencies":[],"dev_dependency":false}],"linux":[{"name":"url_launcher_linux","path":"/home/kun/.pub-cache/hosted/pub.dev/url_launcher_linux-3.2.1/","native_build":true,"dependencies":[],"dev_dependency":false}],"windows":[{"name":"url_launcher_windows","path":"/home/kun/.pub-cache/hosted/pub.dev/url_launcher_windows-3.1.4/","native_build":true,"dependencies":[],"dev_dependency":false}],"web":[{"name":"flutter_sms","path":"/home/kun/桌面/flutter_sms/","dependencies":[],"dev_dependency":false},{"name":"url_launcher_web","path":"/home/kun/.pub-cache/hosted/pub.dev/url_launcher_web-2.4.0/","dependencies":[],"dev_dependency":false}]},"dependencyGraph":[{"name":"flutter_sms","dependencies":["url_launcher"]},{"name":"url_launcher","dependencies":["url_launcher_android","url_launcher_ios","url_launcher_linux","url_launcher_macos","url_launcher_web","url_launcher_windows"]},{"name":"url_launcher_android","dependencies":[]},{"name":"url_launcher_ios","dependencies":[]},{"name":"url_launcher_linux","dependencies":[]},{"name":"url_launcher_macos","dependencies":[]},{"name":"url_launcher_web","dependencies":[]},{"name":"url_launcher_windows","dependencies":[]}],"date_created":"2025-03-15 01:06:57.079472","version":"3.29.1","swift_package_manager_enabled":{"ios":false,"macos":false}}

example/android/app/src/main/AndroidManifest.xml

@@ -6,6 +6,7 @@
          FlutterApplication and put your custom class here. -->
 
     <uses-permission android:name="android.permission.SEND_SMS"/>
+    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
 
     <application
         android:name="${applicationName}"

example/lib/main.dart

@@ -29,11 +29,13 @@ class _MyAppState extends State<MyApp> {
   }
 
   Future<void> _sendSMS(List<String> recipients) async {
+    var c = await getAvailableSIMs();
+    print(c);
     try {
-      String _result = await sendSMS(
+      String _result = await sendSMSWithSubscriptionId(
         message: _controllerMessage.text,
         recipients: recipients,
-        sendDirect: sendDirect,
+        subscriptionId: 1,
       );
       setState(() => _message = _result);
     } catch (error) {

lib/flutter_sms.dart

@@ -30,3 +30,17 @@ Future<bool> launchSmsMulti({
 
 /// Check if you can send SMS on this platform
 Future<bool> canSendSMS() => FlutterSmsPlatform.instance.canSendSMS();
+
+Future<List<int>> getAvailableSIMs() => FlutterSmsPlatform.instance.getAvailableSIMs();
+
+// 添加 sendSMSWithSubscriptionId 方法
+Future<String> sendSMSWithSubscriptionId({
+  required String message,
+  required List<String> recipients,
+  required int subscriptionId,
+})=>
+    FlutterSmsPlatform.instance.sendSMSWithSubscriptionId(
+      message: message,
+      recipients: recipients,
+      subscriptionId: subscriptionId,
+    );

lib/src/flutter_sms_platform.dart

@@ -56,6 +56,31 @@ class FlutterSmsPlatform extends PlatformInterface {
     }
   }
 
+  /// 获取可用的 SIM 卡 ID 列表
+  Future<List<int>> getAvailableSIMs() {
+    return _channel
+        .invokeMethod<List<dynamic>>('getAvailableSIMs')
+        .then((value) {
+      return value?.map((simId) => simId as int).toList() ?? [];
+    });
+  }
+
+  /// 指定 SIM 卡发送短信
+  Future<String> sendSMSWithSubscriptionId({
+    required String message,
+    required List<String> recipients,
+    required int subscriptionId,
+  }) {
+    final mapData = <dynamic, dynamic>{};
+    mapData['message'] = message;
+    final _phones = recipients.join(';');
+    mapData['recipients'] = _phones;
+    mapData['subscriptionId'] = subscriptionId;
+    return _channel
+        .invokeMethod<String>('sendSMSWithSubscriptionId', mapData)
+        .then((value) => value ?? 'Error sending sms');
+  }
+
   Future<bool> canSendSMS() {
     return _channel
         .invokeMethod<bool>('canSendSMS')