cmd/ebitenmobile: the screen turns black when launching from a notification

[hajimehoshi]

Ebitengine Version

9bc5ed3

Operating System

• Windows
• macOS
• Linux
• FreeBSD
• OpenBSD
• Android
• iOS
• Nintendo Switch
• PlayStation 5
• Xbox
• Web Browsers

Go Version (go version)

go version go1.22.4 darwin/arm64

What steps will reproduce the problem?

1. Create an Android application with allowing notification
2. Launch the application and put it background
3. Send a test message to the application (https://firebase.google.com/docs/cloud-messaging/android/first-message)
4. See the application running

What is the expected result?

The application runs correctly

What happens instead?

The screen blacks out

Anything else you feel useful to add?

Maybe a30f075 ?

[hajimehoshi]

Apparently, the entire GLSurfaceView is recreated at notification.

[hajimehoshi]

This happens when the view is created at Activity's onCreate. We should not do that.

[hajimehoshi]

Note to myself, if you want to prevent activity recreation on notification, see

https://stackoverflow.com/questions/7944338/resume-last-activity-when-launcher-icon-is-clicked

android:launchMode="singleInstance" worked in my case.