Feat/merged with arbile26 fork

android/src/main/kotlin/com/shounakmulay/telephony/TelephonyPlugin.kt

@@ -66,8 +66,9 @@ class TelephonyPlugin : FlutterPlugin, ActivityAware {
   }
 
   private fun tearDownPlugin() {
-    IncomingSmsReceiver.foregroundSmsChannel = null
-    smsChannel.setMethodCallHandler(null)
+    // Note: due to background workers the tearDown is called and then foreground channel is set to null.
+//    IncomingSmsReceiver.foregroundSmsChannel = null
+//    smsChannel.setMethodCallHandler(null)
   }
 
 }

android/src/main/kotlin/com/shounakmulay/telephony/sms/IncomingSmsHandler.kt

@@ -114,6 +114,7 @@ fun SmsMessage.toMap(): HashMap<String, Any?> {
         smsMap[SERVICE_CENTER_ADDRESS] = serviceCenterAddress
     }
     return smsMap
+
 }
 
 /**

android/src/main/kotlin/com/shounakmulay/telephony/sms/SmsController.kt

@@ -141,8 +141,17 @@ class SmsController(private val context: Context) {
 
     private fun getSmsManager(): SmsManager {
         val subscriptionId = SmsManager.getDefaultSmsSubscriptionId()
-        val smsManager = getSystemService(context, SmsManager::class.java)
-            ?: throw RuntimeException("Flutter Telephony: Error getting SmsManager")
+        val smsManager : SmsManager?
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            smsManager = getSystemService(context, SmsManager::class.java)
+        } else {
+            smsManager = SmsManager.getDefault()
+        }
+
+        if(smsManager == null) {
+            throw RuntimeException("Flutter Telephony: Error getting SmsManager")
+        }
+
         if (subscriptionId != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
             return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
                 smsManager.createForSubscriptionId(subscriptionId)

android/src/main/kotlin/com/shounakmulay/telephony/sms/SmsMethodCallHandler.kt

@@ -34,6 +34,7 @@ import com.shounakmulay.telephony.utils.Constants.SHARED_PREFERENCES_NAME
 import com.shounakmulay.telephony.utils.Constants.SHARED_PREFS_DISABLE_BACKGROUND_EXE
 import com.shounakmulay.telephony.utils.Constants.SMS_BACKGROUND_REQUEST_CODE
 import com.shounakmulay.telephony.utils.Constants.SMS_DELIVERED
+import com.shounakmulay.telephony.utils.Constants.SMS_FAIL
 import com.shounakmulay.telephony.utils.Constants.SMS_QUERY_REQUEST_CODE
 import com.shounakmulay.telephony.utils.Constants.SMS_SEND_REQUEST_CODE
 import com.shounakmulay.telephony.utils.Constants.SMS_SENT
@@ -44,6 +45,7 @@ import com.shounakmulay.telephony.utils.SmsAction
 import io.flutter.plugin.common.MethodCall
 import io.flutter.plugin.common.MethodChannel
 import io.flutter.plugin.common.PluginRegistry
+import android.telephony.SmsManager;
 
 
 class SmsMethodCallHandler(
@@ -390,9 +392,21 @@ class SmsMethodCallHandler(
   override fun onReceive(ctx: Context?, intent: Intent?) {
     if (intent != null) {
       when (intent.action) {
-        Constants.ACTION_SMS_SENT -> foregroundChannel.invokeMethod(SMS_SENT, null)
+        Constants.ACTION_SMS_SENT -> {
+          when(resultCode) {
+            Activity.RESULT_OK -> foregroundChannel.invokeMethod(SMS_SENT, null)
+            SmsManager.RESULT_ERROR_GENERIC_FAILURE -> foregroundChannel.invokeMethod(SMS_FAIL, null)
+            SmsManager.RESULT_ERROR_NO_SERVICE -> foregroundChannel.invokeMethod(SMS_FAIL, null)
+            SmsManager.RESULT_ERROR_NULL_PDU -> foregroundChannel.invokeMethod(SMS_FAIL, null)
+            SmsManager.RESULT_ERROR_RADIO_OFF -> foregroundChannel.invokeMethod(SMS_FAIL, null)
+
+          }
+          }
         Constants.ACTION_SMS_DELIVERED -> {
-          foregroundChannel.invokeMethod(SMS_DELIVERED, null)
+          when (resultCode) {
+            Activity.RESULT_OK -> foregroundChannel.invokeMethod(SMS_DELIVERED, null)
+            Activity.RESULT_CANCELED -> foregroundChannel.invokeMethod(SMS_FAIL, null)
+          }
           context.unregisterReceiver(this)
         }
       }

android/src/main/kotlin/com/shounakmulay/telephony/utils/Constants.kt

@@ -35,7 +35,8 @@ object Constants {
   const val HANDLE_BACKGROUND_MESSAGE = "handleBackgroundMessage"
   const val SMS_SENT = "smsSent"
   const val SMS_DELIVERED = "smsDelivered"
-
+  const val SMS_FAIL = "smsFail"
+
   // Invoke Method Arguments
   const val HANDLE = "handle"
   const val MESSAGE = "message"

example/lib/main.dart

@@ -3,7 +3,8 @@ import 'dart:async';
 import 'package:telephony/telephony.dart';
 
 onBackgroundMessage(SmsMessage message) {
-  debugPrint("onBackgroundMessage called");
+  debugPrint('onBackgroundMessage called');
+  debugPrint('service center address ${message.serviceCenterAddress}');
 }
 
 void main() {
@@ -29,6 +30,7 @@ class _MyAppState extends State<MyApp> {
     setState(() {
       _message = message.body ?? "Error reading message body.";
     });
+    debugPrint('service center address ${message.serviceCenterAddress}');
   }
 
   onSendStatus(SendStatus status) {
@@ -69,7 +71,25 @@ class _MyAppState extends State<MyApp> {
               onPressed: () async {
                 await telephony.openDialer("123413453");
               },
-              child: Text('Open Dialer'))
+              child: Text('Open Dialer')),
+          TextButton(
+              onPressed: () async {
+                List<SmsMessage> messages = await telephony.getInboxSms(
+                    columns: [
+                      SmsColumn.SERVICE_CENTER_ADDRESS,
+                      SmsColumn.ADDRESS
+                    ],
+                    sortOrder: [
+                      OrderBy(SmsColumn.DATE)
+                    ]);
+                if (messages.isNotEmpty && messages.length > 2) {
+                  debugPrint(
+                      'first message ${messages[2].serviceCenterAddress} with sender ${messages[2].address}');
+                } else {
+                  debugPrint('no messages were retrieved');
+                }
+              },
+              child: Text('Get Messages'))
         ],
       ),
     ));

lib/constants.dart

@@ -35,6 +35,7 @@ const DIAL_PHONE_NUMBER = "dialPhoneNumber";
 const ON_MESSAGE = "onMessage";
 const SMS_SENT = "smsSent";
 const SMS_DELIVERED = "smsDelivered";
+const SMS_FAIL = "smsFail";
 
 ///
 /// Possible parameters that can be fetched during a SMS query operation.
@@ -252,4 +253,4 @@ extension Value on Sort {
 }
 
 /// Represents the status of a sms message sent from the device.
-enum SendStatus { SENT, DELIVERED }
+enum SendStatus { SENT, DELIVERED, FAIL }

lib/telephony.dart

@@ -6,12 +6,12 @@ import 'package:flutter/widgets.dart';
 import 'package:platform/platform.dart';
 
 part 'constants.dart';
-
 part 'filter.dart';
 
 typedef MessageHandler(SmsMessage message);
 typedef SmsSendStatusListener(SendStatus status);
 
+@pragma('vm:entry-point')
 void _flutterSmsSetupBackgroundChannel(
     {MethodChannel backgroundChannel =
         const MethodChannel(_BACKGROUND_CHANNEL)}) async {
@@ -149,6 +149,8 @@ class Telephony {
         return _statusListener(SendStatus.SENT);
       case SMS_DELIVERED:
         return _statusListener(SendStatus.DELIVERED);
+      case SMS_FAIL:
+        return _statusListener(SendStatus.FAIL);
     }
   }