CLGeocoder 和向后兼容性

Question

我有一个简单的问题。

MKReverseCoder 已弃用，自 iOS 5 起不再工作。我们必须使用CLGeocoder。但是，iOS4下有很多人。新应用程序如何与iOS4和iOS5配合进行地理编码？

谢谢！

Answer 1

如果有人试图从 MKReverseGeocoder 转移到 CLGeocoder，那么我写了一篇博客文章，可能会有帮助 http://jonathanfield.me/jons-blog/clgeocoder-example.html

基本上一个例子是，在创建 locationManager 和 CLGeocoder 对象后，只需将此代码添加到您的viewDidLoad() 然后制作一些标签或文本区域来显示数据。

[super viewDidLoad]; locationManager.delegate = self; [locationManager startUpdatingLocation];

locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation;
[self.CLGeocoder reverseGeocodeLocation: locationManager.location completionHandler: 
 ^(NSArray *placemarks, NSError *error) {

     CLPlacemark *placemark = [placemarks objectAtIndex:0];

         isoCountryCode.text = placemark.ISOcountryCode;
         country.text = placemark.country;
         postalCode.text= placemark.postalCode;
         adminArea.text=placemark.administrativeArea;
         subAdminArea.text=placemark.subAdministrativeArea;
         locality.text=placemark.locality;
         subLocality.text=placemark.subLocality;
         thoroughfare.text=placemark.thoroughfare;
         subThoroughfare.text=placemark.subThoroughfare;
         //region.text=placemark.region;

}];

Answer 2

MKReverseGeocoder 仍然适用于 iOS5。它只是被弃用了，这意味着它会在稍后的某个时候被删除（比如在 iOS6 之类的版本发布时）。所以您现在可以继续使用它，没有任何问题

Answer 3

- (IBAction)geoCodeLocation:(id)sender{
    [self.geoCoder reverseGeocodeLocation: locationManager.location completionHandler: 
     ^(NSArray *placemarks, NSError *error) {
         CLPlacemark *placemark = [placemarks objectAtIndex:0];
         NSLog(@"placemark %@",placemark);
         //String to hold address
         NSString *locatedAt = [[placemark.addressDictionary valueForKey:@"FormattedAddressLines"] componentsJoinedByString:@", "];
         NSLog(@"addressDictionary %@", placemark.addressDictionary);

         NSLog(@"placemark %@",placemark.region);
         NSLog(@"placemark %@",placemark.country);  // Give Country Name 
         NSLog(@"placemark %@",placemark.locality); // Extract the city name 
         NSLog(@"location %@",placemark.name);
         NSLog(@"location %@",placemark.ocean);
         NSLog(@"location %@",placemark.postalCode);
         NSLog(@"location %@",placemark.subLocality);

         NSLog(@"location %@",placemark.location);
          //Print the location to console
         NSLog(@"I am currently at %@",locatedAt);

         //Set the label text to current location
         [locationLabel setText:locatedAt];

     }];

有关详细信息，请参阅CLPlacemark 的属性