[GraphHopper] Android error loading graph

[Maxime Guyon]

Hello,

I tested the last master branch for use the new function which normally
allow readonly file system:

 GraphHopper tmpHopp = new GraphHopper().forMobile();

* tmpHopp.setAllowWrites(false);* *//This function*

 tmpHopp.setCHShortcuts("fastest");
 tmpHopp.load(pathToGraphFolder);

But I have always the same problem. As you maybe know, since Android 4, the
external storage (extSD) doesn't allow writing something on it without user
interaction. This I think was done in order to keep clean storage when
application is uninstalled...

So if the graph is stored in extSD I get always this error:


​
Even if I use the setAllowWrites(false).
Any idea?

Regards,

Max
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