Я новичок, чтобы трепетать. Я хочу открыть (android) модуль флаттера в другое окно. Но в файле java или любом другом файле android опция не отображается. 
вот мой флаттер доктор:
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel beta, v1.7.8+hotfix.4, on Mac OS X 10.14.5 18F132, locale en-IN)
[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 11.3.1)
[!] iOS tools - develop for iOS devices
✗ libimobiledevice and ideviceinstaller are not installed. To install with Brew, run:
brew update
brew install --HEAD usbmuxd
brew link usbmuxd
brew install --HEAD libimobiledevice
brew install ideviceinstaller
[✓] Android Studio (version 3.1)
[!] VS Code (version 1.42.1)
✗ Flutter extension not installed; install from
https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[✓] Connected device (1 available)
! Doctor found issues in 2 categories.