Potential memory leak issue in iOS #54937
Description
We found a potential memory leak issue in iOS when our application is starting to crash more and more often in iOS. So, we created a test application to try to narrow down the scope. We found that even in our simple test app, the issue is still observable.
Steps to Reproduce
- Clone https://github.com/noleplay81/FlutterPluginMemoryTest/tree/IncludeHereMapView
- Run the application
- After open and close the main map screen multiple times, the app will crash
Expected results: Application continue to run smoothly
Actual results: Application crash, out of memory
Logs
Here is a sample profile from one of the test runs we did:
[✓] Flutter (Channel stable, v1.12.13+hotfix.9, on Mac OS X 10.15.1 19B88, locale ko-KR)
• Flutter version 1.12.13+hotfix.9 at /Users/*****/documents/flutter
• Framework revision f139b11009 (13 days ago), 2020-03-30 13:57:30 -0700
• Engine revision af51afceb8
• Dart version 2.7.2
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.0)
• Android SDK at /Users/*****/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 29.0.0
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 11.3.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 11.3.1, Build version 11C504
• CocoaPods version 1.8.4
[✓] Android Studio (version 3.6)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 44.0.2
• Dart plugin version 192.7761
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
[✓] VS Code (version 1.43.2)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.9.1
[✓] Connected device (1 available)
• ***** • ceb23a85ee8489e850d733d2ea4f35202d316802 • ios • iOS 13.3.1