diff --git a/packages/interactive_media_ads/CHANGELOG.md b/packages/interactive_media_ads/CHANGELOG.md
index ea35c591a101..9aacfc840c3b 100644
--- a/packages/interactive_media_ads/CHANGELOG.md
+++ b/packages/interactive_media_ads/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.3.0+10
+
+* Bumps `com.google.ads.interactivemedia.v3:interactivemedia` from 3.38.0 to 3.39.0.
+
 ## 0.3.0+9
 
 * Bumps kotlin_version to 2.3.0.
diff --git a/packages/interactive_media_ads/android/build.gradle b/packages/interactive_media_ads/android/build.gradle
index d6de440f04fc..b706e7a6b360 100644
--- a/packages/interactive_media_ads/android/build.gradle
+++ b/packages/interactive_media_ads/android/build.gradle
@@ -50,7 +50,7 @@ android {
     dependencies {
         implementation("androidx.annotation:annotation:1.9.1")
         implementation("androidx.core:core-ktx:1.13.0")
-        implementation("com.google.ads.interactivemedia.v3:interactivemedia:3.38.0")
+        implementation("com.google.ads.interactivemedia.v3:interactivemedia:3.39.0")
         testImplementation("junit:junit:4.13.2")
         testImplementation("org.jetbrains.kotlin:kotlin-test")
         testImplementation("org.mockito.kotlin:mockito-kotlin:6.1.0")
diff --git a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsManagerLoadedEventProxyApi.kt b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsManagerLoadedEventProxyApi.kt
index 9d133bd9d5e8..8a2392441173 100644
--- a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsManagerLoadedEventProxyApi.kt
+++ b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsManagerLoadedEventProxyApi.kt
@@ -15,7 +15,7 @@ import com.google.ads.interactivemedia.v3.api.AdsManagerLoadedEvent
  */
 class AdsManagerLoadedEventProxyApi(override val pigeonRegistrar: ProxyApiRegistrar) :
     PigeonApiAdsManagerLoadedEvent(pigeonRegistrar) {
-  override fun manager(pigeon_instance: AdsManagerLoadedEvent): AdsManager {
+  override fun manager(pigeon_instance: AdsManagerLoadedEvent): AdsManager? {
     return pigeon_instance.adsManager
   }
 }
diff --git a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsRenderingSettingsProxyApi.kt b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsRenderingSettingsProxyApi.kt
index 546c4a17ab1b..18c39d938793 100644
--- a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsRenderingSettingsProxyApi.kt
+++ b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsRenderingSettingsProxyApi.kt
@@ -31,7 +31,7 @@ class AdsRenderingSettingsProxyApi(override val pigeonRegistrar: ProxyApiRegistr
     return pigeon_instance.focusSkipButtonWhenAvailable
   }
 
-  override fun getMimeTypes(pigeon_instance: AdsRenderingSettings): List<String> {
+  override fun getMimeTypes(pigeon_instance: AdsRenderingSettings): List<String>? {
     return pigeon_instance.mimeTypes
   }
 
@@ -65,7 +65,7 @@ class AdsRenderingSettingsProxyApi(override val pigeonRegistrar: ProxyApiRegistr
   }
 
   override fun setMimeTypes(pigeon_instance: AdsRenderingSettings, mimeTypes: List<String>) {
-    pigeon_instance.mimeTypes = mimeTypes
+    pigeon_instance.setMimeTypes(mimeTypes)
   }
 
   override fun setPlayAdsAfterTime(pigeon_instance: AdsRenderingSettings, time: Double) {
diff --git a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsRequestProxyApi.kt b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsRequestProxyApi.kt
index 100929dbd193..476ac1b0e16b 100644
--- a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsRequestProxyApi.kt
+++ b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsRequestProxyApi.kt
@@ -21,15 +21,15 @@ class AdsRequestProxyApi(override val pigeonRegistrar: ProxyApiRegistrar) :
      *
      * This must match the version in pubspec.yaml.
      */
-    const val pluginVersion = "0.3.0+9"
+    const val pluginVersion = "0.3.0+10"
   }
 
   override fun setAdTagUrl(pigeon_instance: AdsRequest, adTagUrl: String) {
     // Add a request agent only if the adTagUrl can append a custom parameter.
     if (!adTagUrl.contains("#") && adTagUrl.contains("?")) {
-      pigeon_instance.adTagUrl = "$adTagUrl&request_agent=Flutter-IMA-$pluginVersion"
+      pigeon_instance.setAdTagUrl("$adTagUrl&request_agent=Flutter-IMA-$pluginVersion")
     } else {
-      pigeon_instance.adTagUrl = adTagUrl
+      pigeon_instance.setAdTagUrl(adTagUrl)
     }
   }
 
@@ -37,7 +37,7 @@ class AdsRequestProxyApi(override val pigeonRegistrar: ProxyApiRegistrar) :
       pigeon_instance: AdsRequest,
       provider: ContentProgressProvider
   ) {
-    pigeon_instance.contentProgressProvider = provider
+    pigeon_instance.setContentProgressProvider(provider)
   }
 
   override fun setAdWillAutoPlay(pigeon_instance: AdsRequest, willAutoPlay: Boolean) {
@@ -49,7 +49,7 @@ class AdsRequestProxyApi(override val pigeonRegistrar: ProxyApiRegistrar) :
   }
 
   override fun setAdsResponse(pigeon_instance: AdsRequest, cannedAdResponse: String) {
-    pigeon_instance.adsResponse = cannedAdResponse
+    pigeon_instance.setAdsResponse(cannedAdResponse)
   }
 
   override fun setContentDuration(pigeon_instance: AdsRequest, duration: Double) {
diff --git a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/CompanionAdProxyApi.kt b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/CompanionAdProxyApi.kt
index 5285ad8a659b..e3cdf75458be 100644
--- a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/CompanionAdProxyApi.kt
+++ b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/CompanionAdProxyApi.kt
@@ -22,7 +22,7 @@ class CompanionAdProxyApi(override val pigeonRegistrar: ProxyApiRegistrar) :
     return pigeon_instance.height.toLong()
   }
 
-  override fun resourceValue(pigeon_instance: CompanionAd): String {
+  override fun resourceValue(pigeon_instance: CompanionAd): String? {
     return pigeon_instance.resourceValue
   }
 
diff --git a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/ImaSdkSettingsProxyApi.kt b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/ImaSdkSettingsProxyApi.kt
index f4c121dabd2b..55f855e29277 100644
--- a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/ImaSdkSettingsProxyApi.kt
+++ b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/ImaSdkSettingsProxyApi.kt
@@ -23,11 +23,11 @@ class ImaSdkSettingsProxyApi(override val pigeonRegistrar: ProxyApiRegistrar) :
   }
 
   override fun setFeatureFlags(pigeon_instance: ImaSdkSettings, featureFlags: Map<String, String>) {
-    pigeon_instance.featureFlags = featureFlags
+    pigeon_instance.setFeatureFlags(featureFlags)
   }
 
   override fun setLanguage(pigeon_instance: ImaSdkSettings, language: String) {
-    pigeon_instance.language = language
+    pigeon_instance.setLanguage(language)
   }
 
   override fun setMaxRedirects(pigeon_instance: ImaSdkSettings, maxRedirects: Long) {
@@ -35,18 +35,18 @@ class ImaSdkSettingsProxyApi(override val pigeonRegistrar: ProxyApiRegistrar) :
   }
 
   override fun setPlayerType(pigeon_instance: ImaSdkSettings, playerType: String) {
-    pigeon_instance.playerType = playerType
+    pigeon_instance.setPlayerType(playerType)
   }
 
   override fun setPlayerVersion(pigeon_instance: ImaSdkSettings, playerVersion: String) {
-    pigeon_instance.playerVersion = playerVersion
+    pigeon_instance.setPlayerVersion(playerVersion)
   }
 
   override fun setPpid(pigeon_instance: ImaSdkSettings, ppid: String) {
-    pigeon_instance.ppid = ppid
+    pigeon_instance.setPpid(ppid)
   }
 
   override fun setSessionId(pigeon_instance: ImaSdkSettings, sessionId: String) {
-    pigeon_instance.sessionId = sessionId
+    pigeon_instance.setSessionId(sessionId)
   }
 }
diff --git a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/InteractiveMediaAdsLibrary.g.kt b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/InteractiveMediaAdsLibrary.g.kt
index daa84bfe9782..605718030ad4 100644
--- a/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/InteractiveMediaAdsLibrary.g.kt
+++ b/packages/interactive_media_ads/android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/InteractiveMediaAdsLibrary.g.kt
@@ -1532,7 +1532,7 @@ abstract class PigeonApiAdsManagerLoadedEvent(
    */
   abstract fun manager(
       pigeon_instance: com.google.ads.interactivemedia.v3.api.AdsManagerLoadedEvent
-  ): com.google.ads.interactivemedia.v3.api.AdsManager
+  ): com.google.ads.interactivemedia.v3.api.AdsManager?
 
   @Suppress("LocalVariableName", "FunctionName")
   /** Creates a Dart instance of AdsManagerLoadedEvent and attaches it to [pigeon_instanceArg]. */
@@ -5569,7 +5569,7 @@ abstract class PigeonApiAdsRenderingSettings(
   /** The SDK will prioritize the media with MIME type on the list. */
   abstract fun getMimeTypes(
       pigeon_instance: com.google.ads.interactivemedia.v3.api.AdsRenderingSettings
-  ): List<String>
+  ): List<String>?
 
   /**
    * Maximum recommended bitrate.
diff --git a/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/AdsRenderingSettingsProxyApiTest.kt b/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/AdsRenderingSettingsProxyApiTest.kt
index 74c72f8f06ba..ddbb762a02c2 100644
--- a/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/AdsRenderingSettingsProxyApiTest.kt
+++ b/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/AdsRenderingSettingsProxyApiTest.kt
@@ -131,7 +131,7 @@ class AdsRenderingSettingsProxyApiTest {
     val mimeTypes = listOf("myString")
     api.setMimeTypes(instance, mimeTypes)
 
-    verify(instance).mimeTypes = mimeTypes
+    verify(instance).setMimeTypes(mimeTypes)
   }
 
   @Test
diff --git a/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/AdsRequestProxyApiTest.kt b/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/AdsRequestProxyApiTest.kt
index 366c2efa28fb..7d4601b5fe46 100644
--- a/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/AdsRequestProxyApiTest.kt
+++ b/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/AdsRequestProxyApiTest.kt
@@ -18,8 +18,8 @@ class AdsRequestProxyApiTest {
     val instance = mock<AdsRequest>()
     api.setAdTagUrl(instance, "adTag?")
 
-    verify(instance).adTagUrl =
-        "adTag?&request_agent=Flutter-IMA-${AdsRequestProxyApi.pluginVersion}"
+    verify(instance)
+        .setAdTagUrl("adTag?&request_agent=Flutter-IMA-${AdsRequestProxyApi.pluginVersion}")
   }
 
   @Test
@@ -29,10 +29,10 @@ class AdsRequestProxyApiTest {
     val instance = mock<AdsRequest>()
 
     api.setAdTagUrl(instance, "adTag#")
-    verify(instance).adTagUrl = "adTag#"
+    verify(instance).setAdTagUrl("adTag#")
 
     api.setAdTagUrl(instance, "adTag?#")
-    verify(instance).adTagUrl = "adTag?#"
+    verify(instance).setAdTagUrl("adTag?#")
   }
 
   @Test
@@ -43,7 +43,7 @@ class AdsRequestProxyApiTest {
     val mockProvider = mock<ContentProgressProvider>()
     api.setContentProgressProvider(instance, mockProvider)
 
-    verify(instance).contentProgressProvider = mockProvider
+    verify(instance).setContentProgressProvider(mockProvider)
   }
 
   @Test
@@ -76,7 +76,7 @@ class AdsRequestProxyApiTest {
     val cannedAdResponse = "response"
     api.setAdsResponse(instance, cannedAdResponse)
 
-    verify(instance).adsResponse = cannedAdResponse
+    verify(instance).setAdsResponse(cannedAdResponse)
   }
 
   @Test
diff --git a/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/ImaSdkSettingsProxyApiTest.kt b/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/ImaSdkSettingsProxyApiTest.kt
index dd1dd3c8a843..c4cb266aae74 100644
--- a/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/ImaSdkSettingsProxyApiTest.kt
+++ b/packages/interactive_media_ads/android/src/test/kotlin/dev/flutter/packages/interactive_media_ads/ImaSdkSettingsProxyApiTest.kt
@@ -40,7 +40,7 @@ class ImaSdkSettingsProxyApiTest {
     val featureFlags = mapOf("myString" to "myString2")
     api.setFeatureFlags(instance, featureFlags)
 
-    verify(instance).featureFlags = featureFlags
+    verify(instance).setFeatureFlags(featureFlags)
   }
 
   @Test
@@ -51,7 +51,7 @@ class ImaSdkSettingsProxyApiTest {
     val language = "myString"
     api.setLanguage(instance, language)
 
-    verify(instance).language = language
+    verify(instance).setLanguage(language)
   }
 
   @Test
@@ -73,7 +73,7 @@ class ImaSdkSettingsProxyApiTest {
     val playerType = "myString"
     api.setPlayerType(instance, playerType)
 
-    verify(instance).playerType = playerType
+    verify(instance).setPlayerType(playerType)
   }
 
   @Test
@@ -84,7 +84,7 @@ class ImaSdkSettingsProxyApiTest {
     val playerVersion = "myString"
     api.setPlayerVersion(instance, playerVersion)
 
-    verify(instance).playerVersion = playerVersion
+    verify(instance).setPlayerVersion(playerVersion)
   }
 
   @Test
@@ -95,7 +95,7 @@ class ImaSdkSettingsProxyApiTest {
     val ppid = "myString"
     api.setPpid(instance, ppid)
 
-    verify(instance).ppid = ppid
+    verify(instance).setPpid(ppid)
   }
 
   @Test
@@ -106,6 +106,6 @@ class ImaSdkSettingsProxyApiTest {
     val sessionId = "myString"
     api.setSessionId(instance, sessionId)
 
-    verify(instance).sessionId = sessionId
+    verify(instance).setSessionId(sessionId)
   }
 }
diff --git a/packages/interactive_media_ads/ios/interactive_media_ads/Sources/interactive_media_ads/AdsRequestProxyAPIDelegate.swift b/packages/interactive_media_ads/ios/interactive_media_ads/Sources/interactive_media_ads/AdsRequestProxyAPIDelegate.swift
index 9bdc5bb205a1..33c2a9ed2324 100644
--- a/packages/interactive_media_ads/ios/interactive_media_ads/Sources/interactive_media_ads/AdsRequestProxyAPIDelegate.swift
+++ b/packages/interactive_media_ads/ios/interactive_media_ads/Sources/interactive_media_ads/AdsRequestProxyAPIDelegate.swift
@@ -13,7 +13,7 @@ class AdsRequestProxyAPIDelegate: PigeonApiDelegateIMAAdsRequest {
   /// The current version of the `interactive_media_ads` plugin.
   ///
   /// This must match the version in pubspec.yaml.
-  static let pluginVersion = "0.3.0+9"
+  static let pluginVersion = "0.3.0+10"
 
   func pigeonDefaultConstructor(
     pigeonApi: PigeonApiIMAAdsRequest, adTagUrl: String, adDisplayContainer: IMAAdDisplayContainer,
diff --git a/packages/interactive_media_ads/lib/src/android/android_ads_loader.dart b/packages/interactive_media_ads/lib/src/android/android_ads_loader.dart
index a816477c4f86..0dcd067b1eca 100644
--- a/packages/interactive_media_ads/lib/src/android/android_ads_loader.dart
+++ b/packages/interactive_media_ads/lib/src/android/android_ads_loader.dart
@@ -4,6 +4,8 @@
 
 import 'dart:async';
 
+import 'package:flutter/foundation.dart' show debugPrint;
+
 import '../platform_interface/platform_interface.dart';
 import 'android_ad_display_container.dart';
 import 'android_ads_manager.dart';
@@ -144,11 +146,21 @@ base class AndroidAdsLoader extends PlatformAdsLoader {
       ..addAdsLoadedListener(
         ima.AdsLoadedListener(
           onAdsManagerLoaded: (_, ima.AdsManagerLoadedEvent event) {
-            weakThis.target?.params.onAdsLoaded(
-              PlatformOnAdsLoadedData(
-                manager: AndroidAdsManager(event.manager),
-              ),
-            );
+            if (event.manager case final ima.AdsManager manager) {
+              weakThis.target?.params.onAdsLoaded(
+                PlatformOnAdsLoadedData(
+                  // `manager` is only null when using Dynamic Ad Insertion (DAI),
+                  // which this plugin does not currently support.
+                  // TODO(bparrishMines): Platform interface and app-facing
+                  // interface should be updated to set this value as nullable.
+                  manager: AndroidAdsManager(manager),
+                ),
+              );
+            } else {
+              debugPrint(
+                'Failed to call `AndroidAdsLoader.onAdsLoaded` because `AdsLoadedListener.onAdsManagerLoaded` was called with a null AdsManager',
+              );
+            }
           },
         ),
       )
diff --git a/packages/interactive_media_ads/lib/src/android/interactive_media_ads.g.dart b/packages/interactive_media_ads/lib/src/android/interactive_media_ads.g.dart
index c1a7a65062f5..a04465afd2d8 100644
--- a/packages/interactive_media_ads/lib/src/android/interactive_media_ads.g.dart
+++ b/packages/interactive_media_ads/lib/src/android/interactive_media_ads.g.dart
@@ -1300,18 +1300,18 @@ class AdsManagerLoadedEvent extends PigeonInternalProxyApiBaseClass {
   AdsManagerLoadedEvent.pigeon_detached({
     super.pigeon_binaryMessenger,
     super.pigeon_instanceManager,
-    required this.manager,
+    this.manager,
   });
 
   /// The ads manager that will control playback of the loaded ads, or null when
   /// using dynamic ad insertion.
-  final AdsManager manager;
+  final AdsManager? manager;
 
   static void pigeon_setUpMessageHandlers({
     bool pigeon_clearHandlers = false,
     BinaryMessenger? pigeon_binaryMessenger,
     PigeonInstanceManager? pigeon_instanceManager,
-    AdsManagerLoadedEvent Function(AdsManager manager)? pigeon_newInstance,
+    AdsManagerLoadedEvent Function(AdsManager? manager)? pigeon_newInstance,
   }) {
     final _PigeonInternalProxyApiBaseCodec pigeonChannelCodec =
         _PigeonInternalProxyApiBaseCodec(
@@ -1339,18 +1339,14 @@ class AdsManagerLoadedEvent extends PigeonInternalProxyApiBaseClass {
             'Argument for dev.flutter.pigeon.interactive_media_ads.AdsManagerLoadedEvent.pigeon_newInstance was null, expected non-null int.',
           );
           final AdsManager? arg_manager = (args[1] as AdsManager?);
-          assert(
-            arg_manager != null,
-            'Argument for dev.flutter.pigeon.interactive_media_ads.AdsManagerLoadedEvent.pigeon_newInstance was null, expected non-null AdsManager.',
-          );
           try {
             (pigeon_instanceManager ?? PigeonInstanceManager.instance)
                 .addHostCreatedInstance(
-                  pigeon_newInstance?.call(arg_manager!) ??
+                  pigeon_newInstance?.call(arg_manager) ??
                       AdsManagerLoadedEvent.pigeon_detached(
                         pigeon_binaryMessenger: pigeon_binaryMessenger,
                         pigeon_instanceManager: pigeon_instanceManager,
-                        manager: arg_manager!,
+                        manager: arg_manager,
                       ),
                   arg_pigeon_instanceIdentifier!,
                 );
@@ -6820,7 +6816,7 @@ class AdsRenderingSettings extends PigeonInternalProxyApiBaseClass {
   }
 
   /// The SDK will prioritize the media with MIME type on the list.
-  Future<List<String>> getMimeTypes() async {
+  Future<List<String>?> getMimeTypes() async {
     final _PigeonInternalProxyApiBaseCodec pigeonChannelCodec =
         _pigeonVar_codecAdsRenderingSettings;
     final BinaryMessenger? pigeonVar_binaryMessenger = pigeon_binaryMessenger;
@@ -6843,13 +6839,8 @@ class AdsRenderingSettings extends PigeonInternalProxyApiBaseClass {
         message: pigeonVar_replyList[1] as String?,
         details: pigeonVar_replyList[2],
       );
-    } else if (pigeonVar_replyList[0] == null) {
-      throw PlatformException(
-        code: 'null-error',
-        message: 'Host platform returned null value for non-null return value.',
-      );
     } else {
-      return (pigeonVar_replyList[0] as List<Object?>?)!.cast<String>();
+      return (pigeonVar_replyList[0] as List<Object?>?)?.cast<String>();
     }
   }
 
diff --git a/packages/interactive_media_ads/pigeons/interactive_media_ads_android.dart b/packages/interactive_media_ads/pigeons/interactive_media_ads_android.dart
index f37cf1fe767f..bc5b57bbab6c 100644
--- a/packages/interactive_media_ads/pigeons/interactive_media_ads_android.dart
+++ b/packages/interactive_media_ads/pigeons/interactive_media_ads_android.dart
@@ -308,7 +308,7 @@ abstract class AdsLoader {
 abstract class AdsManagerLoadedEvent {
   /// The ads manager that will control playback of the loaded ads, or null when
   /// using dynamic ad insertion.
-  late final AdsManager manager;
+  late final AdsManager? manager;
 }
 
 /// An event raised when there is an error loading or playing ads.
@@ -961,7 +961,7 @@ abstract class AdsRenderingSettings {
   bool getFocusSkipButtonWhenAvailable();
 
   /// The SDK will prioritize the media with MIME type on the list.
-  List<String> getMimeTypes();
+  List<String>? getMimeTypes();
 
   /// Maximum recommended bitrate.
   ///
diff --git a/packages/interactive_media_ads/pubspec.yaml b/packages/interactive_media_ads/pubspec.yaml
index 779343646712..bd0c580c70ee 100644
--- a/packages/interactive_media_ads/pubspec.yaml
+++ b/packages/interactive_media_ads/pubspec.yaml
@@ -2,7 +2,7 @@ name: interactive_media_ads
 description: A Flutter plugin for using the Interactive Media Ads SDKs on Android and iOS.
 repository: https://github.com/flutter/packages/tree/main/packages/interactive_media_ads
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+interactive_media_ads%22
-version: 0.3.0+9 # This must match the version in
+version: 0.3.0+10 # This must match the version in
   # `android/src/main/kotlin/dev/flutter/packages/interactive_media_ads/AdsRequestProxyApi.kt` and
   # `ios/interactive_media_ads/Sources/interactive_media_ads/AdsRequestProxyAPIDelegate.swift`
 
diff --git a/packages/interactive_media_ads/test/android/ads_loader_test.dart b/packages/interactive_media_ads/test/android/ads_loader_test.dart
index 4923255156b5..8c60343409a6 100644
--- a/packages/interactive_media_ads/test/android/ads_loader_test.dart
+++ b/packages/interactive_media_ads/test/android/ads_loader_test.dart
@@ -278,6 +278,60 @@ void main() {
       onAdsManagerLoadedCallback(MockAdsLoadedListener(), mockLoadedEvent);
     });
 
+    testWidgets('onAdsLoaded does not crash with null manager', (
+      WidgetTester tester,
+    ) async {
+      final AndroidAdDisplayContainer container = await _pumpAdDisplayContainer(
+        tester,
+      );
+
+      final mockAdsLoader = MockAdsLoader();
+      final addEventListenerCompleter = Completer<void>();
+      when(mockAdsLoader.addAdsLoadedListener(any)).thenAnswer((_) async {
+        addEventListenerCompleter.complete();
+      });
+      _mockImaSdkFactoryInstance(adsLoader: mockAdsLoader);
+
+      late final void Function(ima.AdsLoadedListener, ima.AdsManagerLoadedEvent)
+      onAdsManagerLoadedCallback;
+
+      ima.PigeonOverrides.adsLoadedListener_new =
+          ({
+            required void Function(
+              ima.AdsLoadedListener,
+              ima.AdsManagerLoadedEvent,
+            )
+            onAdsManagerLoaded,
+          }) {
+            onAdsManagerLoadedCallback = onAdsManagerLoaded;
+            return MockAdsLoadedListener();
+          };
+      ima.PigeonOverrides.adErrorListener_new = ({required dynamic onAdError}) {
+        return MockAdErrorListener();
+      };
+
+      AndroidAdsLoader(
+        AndroidAdsLoaderCreationParams(
+          container: container,
+          settings: AndroidImaSettings(
+            const PlatformImaSettingsCreationParams(),
+          ),
+          onAdsLoaded: (_) {
+            fail('onAdsLoaded should not be called when AdsManager is null');
+          },
+          onAdsLoadError: (_) {},
+        ),
+      );
+
+      final mockLoadedEvent = MockAdsManagerLoadedEvent();
+      // Sets manager to null.
+      when(mockLoadedEvent.manager).thenReturn(null);
+
+      await addEventListenerCompleter.future;
+
+      onAdsManagerLoadedCallback(MockAdsLoadedListener(), mockLoadedEvent);
+    });
+
     testWidgets('onAdError', (WidgetTester tester) async {
       final AndroidAdDisplayContainer container = await _pumpAdDisplayContainer(
         tester,
diff --git a/packages/interactive_media_ads/test/android/ads_loader_test.mocks.dart b/packages/interactive_media_ads/test/android/ads_loader_test.mocks.dart
index bf165de26ad6..6115bd3b27b0 100644
--- a/packages/interactive_media_ads/test/android/ads_loader_test.mocks.dart
+++ b/packages/interactive_media_ads/test/android/ads_loader_test.mocks.dart
@@ -608,18 +608,6 @@ class MockAdsManager extends _i1.Mock implements _i2.AdsManager {
 class MockAdsManagerLoadedEvent extends _i1.Mock
     implements _i2.AdsManagerLoadedEvent {
   @override
-  _i2.AdsManager get manager =>
-      (super.noSuchMethod(
-            Invocation.getter(#manager),
-            returnValue: _FakeAdsManager_6(this, Invocation.getter(#manager)),
-            returnValueForMissingStub: _FakeAdsManager_6(
-              this,
-              Invocation.getter(#manager),
-            ),
-          )
-          as _i2.AdsManager);
-
-  @override
   _i2.PigeonInstanceManager get pigeon_instanceManager =>
       (super.noSuchMethod(
             Invocation.getter(#pigeon_instanceManager),
diff --git a/packages/interactive_media_ads/test/android/ads_manager_test.mocks.dart b/packages/interactive_media_ads/test/android/ads_manager_test.mocks.dart
index 42de4b8c0bce..6b482343914a 100644
--- a/packages/interactive_media_ads/test/android/ads_manager_test.mocks.dart
+++ b/packages/interactive_media_ads/test/android/ads_manager_test.mocks.dart
@@ -591,15 +591,13 @@ class MockAdsRenderingSettings extends _i1.Mock
           as _i4.Future<bool>);
 
   @override
-  _i4.Future<List<String>> getMimeTypes() =>
+  _i4.Future<List<String>?> getMimeTypes() =>
       (super.noSuchMethod(
             Invocation.method(#getMimeTypes, []),
-            returnValue: _i4.Future<List<String>>.value(<String>[]),
-            returnValueForMissingStub: _i4.Future<List<String>>.value(
-              <String>[],
-            ),
+            returnValue: _i4.Future<List<String>?>.value(),
+            returnValueForMissingStub: _i4.Future<List<String>?>.value(),
           )
-          as _i4.Future<List<String>>);
+          as _i4.Future<List<String>?>);
 
   @override
   _i4.Future<void> setBitrateKbps(int? bitrate) =>