Google Maps Android API transparent

Development Platform & Builds Mobile
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1

I’m trying to make a Google Maps API plugin for UE4 but have hit a bit of a roadblock.

I have successfully created a MapFragment and have overlaid it on top of the GameActivity using a PopupWindow (similar to how AdMob banner ads are implemented in GameActivity.java).

However the actual MapView is not displaying correctly; only the Google logo is present:
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Does anyone have any idea what might cause this? I feel like the MapView is trying to render but the UE4 engine is rendering instead. That or some kind of z-ordering issue.

Thanks for your help!

2

Could someone give me some insight into how the Engine is rendered on android? Is everything rendered to a SurfaceView or something similar?

3

Just going to answer my own question for anyone that comes across this issue in the future. Turns out this issue was not specifically UE4 related. This apparently is a known bug in Android.

I couldn’t solve the problem, so I ended up using a Dialog object to hold my MapFragment, which works perfectly fine.