支持正向反向 Geocoder 的源码

本文转自 http://blog.csdn.net/favormm/archive/2011/06/29/6574658.aspx

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    iOS 的 SDK 中只有反向 gecoder，即从经纬度到地址的解析，没有正向即从地址到经纬度的解析。 要支持正向解析就只有直接调用 google api。今天与大家分享两个开源的项目，支持正向与反向解析

• https://github.com/mjisrawi/iOS-Geocoding-Services
• https://github.com/samvermette/SVGeocoder   用法：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 (included) 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;