Tiles are 256x256. Cache is not persistent.
My code is very close to the getting started example.
There are two points that may be of some interest:
1)The app is adding several layers to the map layer and redrawing only at the end, when all the layers have been added.
2) When a new multi-map is to be shown then initialisation is done as:
- all mapView layers cleared
- cache purged
- new tile renderer layer added
I guess this problem maybe related to the timing and synchronisation of concurrent threads that are rendering the tiles (and that can be very different on different devices) , but I have not been able to find where this is managed in the mapsforge code and how this is performed.