Source code supporting forward and reverse geocoder

This article is transferred fromHttp://blog.csdn.net/favormm/archive/2011/06/29/6574658.aspx

In ios sdk, There is only reverse gecoder, that is, the resolution from the longitude and latitude to the address, and there is no forward resolution from the address to the latitude and longitude. To support forward resolution, you only need to directly call the Google API. Today I will share with you two open-source projects that support forward and reverse resolution.

• Https://github.com/mjisrawi/iOS-Geocoding-Services
• Https://github.com/samvermette/SVGeocoder usage: http://samvermette.com/164

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Svgeocoder

# Releases, # iphonedev

There is no forward geocoding class on IOS. and it's no secret that mkreversegeocoder is a pain in the butt and returns with an error half of the time. so I took the opportunity to write svgeocoder, a simple geocoder and reverse geocoder for IOS. my first GitHub release!

Svgeocoder requires the corelocation, mapkit and addressbook frameworks as well as the (pinned) touchjson parser by Jonathan Wight. it also uses the Google geocoding API so make sure you read theirterms of service before using svgeocoder.

Using the geocoder

Nsstring *Addressstring = @ "3245 St-Denis, Montreal"Svgeocoder *Geocoderequest = [[Svgeocoder Alloc] Initwithaddress:Addressstring];[Geocoderequest Setdelegate:Self];[Geocoderequest Startasynchronous];
 

View rawgeocoder. mThis gist brought to you by GitHub. Using the reverse geocoder

  cllocationcoordinate2d   coordinate  =
     cllocationcoordinate2dmake   (  45.54181  ,  -  73.62928   );   svgeocoder   *   rgeocoderrequest  =  [[  svgeocoder   alloc  ]   initwithcoordinate:   coordinate  ];   [  rgeocoderrequest   setdelegate:   Self  ];   [  rgeocoderrequest   startasynchronous  ];  

View rawreversegeocoder. mThis gist brought to you by GitHub. svgeocoderdelegate

Best of all, svgeocoderdelegate returns an mkplacemark object just like with mkreversegeocoder:

- (Void)Geocoder:(Svgeocoder *)Geocoder Didfindplacemark:(Mkplacemark *)Placemark;- (Void)Geocoder:(Svgeocoder *)Geocoder Didfailwitherror:(Nserror *)Error;