public CacheManagerTask downloadAreaAsyncNoUI ( Context ctx , BoundingBox bb , final int zoomMin , final int zoomMax , final CacheManagerCallback callback ) { final CacheManagerTask task = new CacheManagerTask ( this , getDownloadingAction ( ) , bb , zoomMin , zoomMax ) ; task . addCallback ( callback ) ; execute ( task ) ; return task ; }
Download in background all tiles of the specified area in osmdroid cache without a user interface .