WMS_iOS_GoogleMapSDK

Sample for using WMS sources in Google Maps SDK for iOS. Provide your API key in the WMSController.h

• Google Maps for iOS used : 1.9.2 (Feb 2015)
• used XCode 6.1

youtube video

There are two ways of doing this:

• "Method B": use GMSTileURLConstructor

     // -- method B. WMS tile layer with GMSTileURLConstructor
        GMSTileURLConstructor urls = ^(NSUInteger x, NSUInteger y, NSUInteger z) {
            BBox bbox = bboxFromXYZ(x,y,z);
            NSString *urlKN = [NSString stringWithFormat:@"Your WMS url&BBOX=%f,%f,%f,%f",
                               bbox.left, bbox.bottom,bbox.right,bbox.top];
  
            return [NSURL URLWithString:urlKN];
        };

• "Method A": use custom TileLayer derived from GMSTileLayer

  1. your derived class from GMSTileLayer (here WMSTileLayer.h) will receive tile request

     -(void)requestTileForX:(NSUInteger)x y:(NSUInteger)y zoom:(NSUInteger)z receiver:(id)receiver

  2. WMSTileLayer first checks for cached tile and if found calls :

     [self drawTileAtX:x y:y zoom:z Url:urlStr Receiver:receiver] ;

  3. if tile is not cached we download it, save it to the file system (using MD5 hash) and call to draw it

     [data  writeToFile: filePath  atomically:YES];
     [self drawTileAtX:x y: y zoom: z Url:urlStr Receiver:receiver] ;

  4. drawTileAtX is very simple:

     -(void) drawTileAtX: (NSUInteger) x   y:(NSUInteger)y    zoom:(NSUInteger)zoom   Url:(NSString*) url Receiver: (id<GMSTileReceiver>) receiver {
          UIImage             *image   = TileLoad(url,NO); // loads tile from file system
          [receiver receiveTileWithX:x y:y zoom:zoom image:image]; // pass it to the SDK API
     }

}

both ways are used in this sample.