为什么在 flutter 应用程序上访问 firebase 时，Windows Android Studio Emulator 会突然变慢？

Question

I am testing a flutter app in the emulator in Android Studio. The app and emulator had no issues a few days ago. Suddenly, the app is painfully slow in a couple of areas:

• The emulator no longer auto-boots the app. After Installing build/app/outputs/flutter-apk/app.apk... , nothing happens. But the app is installed, and if the app is run manually, the debugger starts logging.
• On initial load where the user logs in to firebase auth, or when already logged in and the app goes through that verification. This takes about 5-10 minutes on an emulator, and about two seconds on a physical device (and was previously this fast on the emulator).
• Occasionally firestore realtime updates don't happen, but are usually very slow

A few troubleshooting notes:

• Emulator itself does not appear slow (ie no visible lag, and loading spinner is regular speed)
• I have fully uninstalled Android Studio and reinstalled.
• System has 8 core CPU, 64GB RAM, modern GPU, SSD
• Emulator device is allocated 8GB RAM, 512MB heap, 3GB local storage
• Android studio and plugins are latest version
• Emulator.network speed is set to full
• This issue occurs on Windows. It runs normally on Mac Android Studio Emulator

Answer 1

It's the issue with the recent versions of Android Emulator on Windows platform. Downgrade the version of Android Emulator to 31.2.9 . You can download it from here .

Procedure of manual installation of custom version of Android Emulator is given in the link above.

Answer 2

This issue appears to be fixed with the latest stable Android Emulator release, v31.3.11-9058569 .