WMS overlay in iOS MapKit

update May 2014: iOS7 version and notes available here: https://blog.sumbera.com/2014/05/17/wms-on-mapkit-with-ios7/

I have crafted really simple and quick code at ESA App dev camp for viewing WMS sources. And as few people questioned me on how to do this, I am posting the full code of the MapView component that takes sample WMS service (Ozone) and overlays this above MapKit.

In github here : https://github.com/Sumbera/WMSoverMapKit

you will find MapViewController that accepts WMS sources stored as array with BBOX %f, %f, %f, %f

-(void) addWMSOverlays: (NSArray*) overlays

this can be called from your rootController:

MapViewController * mapViewController = [[MapViewController alloc] init];

WMSOverlay * wmsOverlay =[[WMSOverlay alloc]
 initWithName:@"Ozone" Url:@"http://wdc.dlr.de/ogc/produkt_t?LAYERS=GOME2_O3&
 TRANSPARENT=TRUE&
 FORMAT=image/png&
 STYLES=&
 SLD=http%3A%2F%2Fwdc.dlr.de%2Fsld%2FGOME2_O3_sld.xml&
 TIME=2012-02-12T00:00:00Z&
 SERVICE=WMS&
 VERSION=1.1.1&
 REQUEST=GetMap&
 SRS=EPSG:4326&
 WIDTH=256&
 HEIGHT=256" 
 Opacity:0.5];
  [mapViewController  addWMSOverlays:[NSArray arrayWithObjects:wmsOverlay, nil]];

please note:

#1. that sample code uses experimentaly MKNetworkKit, which has some occasional troubles. You can replace the download method in WMSOverlayView class downloadTile

#2 it uses simple hash for storing tiles on cache.

enjoy