[cherrypick-stable]Skip unexpected events in MultiPlatformViewBackgro…

…undForegroundScenar… (#49247) â�¦io (#48456) Fixes flutter/flutter#138193. Was first attempted to fix in #48096, but that was not reliable since it's all asynchronous. ------------------------------------------- cherry pick to fix mac unopt failures on stable branch: https://flutter-dashboard.appspot.com/#/build?repo=engine&branch=flutter-3.16-candidate.0
flutter · Dec 19, 2023 · 3f3e560 · 3f3e560
1 parent 61b3360
commit 3f3e560
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/testing/scenario_app/lib/src/platform_view.dart b/testing/scenario_app/lib/src/platform_view.dart
@@ -510,6 +510,13 @@ class MultiPlatformViewBackgroundForegroundScenario extends Scenario
     PlatformMessageResponseCallback? callback,
   ) {
     final String message = utf8.decode(data!.buffer.asUint8List());
+
+    // The expected first event should be 'AppLifecycleState.resumed', but
+    // occasionally it will receive 'AppLifecycleState.inactive' first. Skip
+    // any messages until 'AppLifecycleState.resumed' is received.
+    if (_lastLifecycleState.isEmpty && message != 'AppLifecycleState.resumed') {
+      return;
+    }
     if (_lastLifecycleState == 'AppLifecycleState.inactive' &&
         message == 'AppLifecycleState.resumed') {
       _nextFrame = _secondFrame;