Reverse-Geocoding mit Google Maps api iOS

Question

I

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation 
    { 
    curLoc=newLocation; 
    if (curLoc != nil) { 
     latitude=curLoc.coordinate.latitude; 
     longitude=curLoc.coordinate.longitude; 
     //[self loadMap:latitude second:longitude]; 
     [self MarkerPoint:latitude+0.04 second:longitude+0.1 third:latitude-0.04 forth:longitude-0.1]; 

     NSError *error; 
     NSString *lookupString = [NSURL URLWithString:[NSString stringWithFormat:@"http://maps.googleapis.com/maps/api/geocode/json?latlng=%f,%f&sensor=false",latitude,longitude]]; 
     NSLog(@"URL: %@",lookupString); 
     lookupString = [lookupString stringByReplacingOccurrencesOfString:@" " withString:@"+"]; 

     NSData *jsonResponse = [NSData dataWithContentsOfURL:[NSURL URLWithString:lookupString]]; 

     NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:jsonResponse options:kNilOptions error:&error]; 

     self.locationArray = [[jsonDict valueForKey:@"results"] valueForKey:@"formatted_address"]; 
     int total = self.locationArray.count; 
     NSLog(@"locationArray count: %d", self.locationArray.count); 

     for (int i = 0; i < total; i++) 
     { 
      NSString *statusString = [jsonDict valueForKey:@"status"]; 
      NSLog(@"JSON Response Status:%@", statusString); 
      NSLog(@"Address: %@", [self.locationArray objectAtIndex:i]); 
     } 
    } 
}  

nun folgenden Code Reverse Geocoding mit tue ich diese Störung erhalte:

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSURL stringByReplacingOccurrencesOfString:withString:]: unrecognized selector sent to instance 0xbce98c0' 
*** First throw call stack: 
(
    0 CoreFoundation      0x034551e4 __exceptionPreprocess + 180 
    1 libobjc.A.dylib      0x031a98e5 objc_exception_throw + 44 
    2 CoreFoundation      0x034f2243 -[NSObject(NSObject) doesNotRecognizeSelector:] + 275 
    3 CoreFoundation      0x0344550b ___forwarding___ + 1019 
    4 CoreFoundation      0x034450ee _CF_forwarding_prep_0 + 14 
    5 MatchPoint       0x00017fad -[ICSViewController locationManager:didUpdateToLocation:fromLocation:] + 813 
    6 CoreLocation      0x0164655e CLLocationCoordinate2DGetDistanceFrom + 18294 
    7 CoreLocation      0x01645af4 CLLocationCoordinate2DGetDistanceFrom + 15628 
    8 CoreLocation      0x01642e40 CLLocationCoordinate2DGetDistanceFrom + 4184 
    9 CoreLocation      0x0163c680 CLClientInvalidate + 996 
    10 CoreFoundation      0x034140b0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 16 
    11 CoreFoundation      0x033dd339 __CFRunLoopDoBlocks + 361 
    12 CoreFoundation      0x033fb753 __CFRunLoopRun + 2355 
    13 CoreFoundation      0x033fa9d3 CFRunLoopRunSpecific + 467 
    14 CoreFoundation      0x033fa7eb CFRunLoopRunInMode + 123 
    15 GraphicsServices     0x051f05ee GSEventRunModal + 192 
    16 GraphicsServices     0x051f042b GSEventRun + 104 
    17 UIKit        0x01e69f9b UIApplicationMain + 1225 
    18 MatchPoint       0x0001d9fd main + 141 
    19 libdyld.dylib      0x03d206d9 start + 1 
    20 ???         0x00000001 0x0 + 1 
) 
libc++abi.dylib: terminating with uncaught exception of type NSException 
(lldb) 

Answer 1

Versuchen Sie, diese Linie

NSString *lookupString = [NSURL URLWithString:[NSString stringWithFormat:@"http://maps.googleapis.com/maps/api/geocode/json?latlng=%f,%f&sensor=false",latitude,longitude]]; 

Wechsel mit

NSString *lookupString = [NSString stringWithFormat:@"http://maps.googleapis.com/maps/api/geocode/json?latlng=%f,%f&sensor=false",latitude,longitude]; 

Answer 2

Geben Sie eine gültige geografische Breite und Länge ein und überprüfen Sie sie zuerst. Nachdem Sie Erfolg haben nur dann dynamisch Breiten- und Längen verwenden

-(void)getGoogleAdrressFromLatLong : (CGFloat)lat lon:(CGFloat)lon{ 
    //[self showLoadingView:@"Loading.."]; 
    NSError *error = nil; 

    NSString *lookUpString = [NSString stringWithFormat:@"http://maps.googleapis.com/maps/api/geocode/json?latlng=%f,%f&sensor=false", lat,lon]; 

    lookUpString = [lookUpString stringByReplacingOccurrencesOfString:@" " withString:@"+"]; 

    NSData *jsonResponse = [NSData dataWithContentsOfURL:[NSURL URLWithString:lookUpString]]; 

    NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:jsonResponse options:kNilOptions error:&error]; 

    // NSLog(@"%@",jsonDict); 

    NSArray* jsonResults = [jsonDict objectForKey:@"results"]; 

    // NSLog(@"%@",jsonResults); 

} 

Answer 3

Zunächst wird locationManager: didUpdateToLocation: fromLocation: in iOS veraltet 6 und höher. Ich würde Ihnen empfehlen, diese Methode durch die neue zu ersetzen: locationManager: didUpdateLocations: und GMSGeocoder reverseGeocodeCoordinate: completionHandler: zum Abrufen der Adresse von 2D-Koordinaten zu verwenden.

Meine Lösung basiert auf GMSGeocoder mit:

self.locationManager = [[CLLocationManager alloc] init]; 
self.locationManager.delegate = self; 
self.locationManager.activityType = CLActivityTypeFitness; 
self.locationManager.distanceFilter = kCLDistanceFilterNone; 
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest; 
self.locationManager.pausesLocationUpdatesAutomatically = NO; 
[self.locationManager requestWhenInUseAuthorization];// iOS 8 requirement 
[self.locationManager requestAlwaysAuthorization];// iOS 8 requirement 

self.locateOnCurrentPosition = YES; // Flag for changing camera once you really needed 
[self.locationManager startUpdatingLocation]; 

#pragma mark - CLLocationManagerDelegate 

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations 
{ 
    if (self.locateOnCurrentPosition) { 
     NSLog(@"CLLocationManager didUpdateLocations: %@", [locations lastObject]); 
     self.locateOnCurrentPosition = NO; 
     CLLocation *location = [locations lastObject]; 
     self.mapView.camera = [GMSCameraPosition cameraWithTarget:location.coordinate zoom:16]; // GMSMapView entity 
     self.mapMarker.position = self.mapView.camera.target; // GMSMarker entity 
     [[GMSGeocoder geocoder] reverseGeocodeCoordinate:location.coordinate completionHandler: 
     ^(GMSReverseGeocodeResponse *response, NSError *error){ 
      NSLog(@"Address: %@", response.firstResult); 
     }]; 
    } 
} 

Answer 4

Fahren Sie mit lattitude und Länge Es wird Sie korrekte Adresse geben ...

[[GMSGeocoder geocoder] reverseGeocodeCoordinate:CLLocationCoordinate2DMake(coordinate.latitude, coordinate.longitude) completionHandler:^(GMSReverseGeocodeResponse* response, NSError* error) { 
      NSLog(@"reverse geocoding results:"); 
      for(GMSAddress* addressObj in [response results]) 
      { 
       NSLog(@"%@",[response results]); 

       NSLog(@"coordinate.latitude=%f", addressObj.coordinate.latitude); 
       NSLog(@"coordinate.longitude=%f", addressObj.coordinate.longitude); 
       NSLog(@"thoroughfare=%@", addressObj.thoroughfare); 
       NSLog(@"locality=%@", addressObj.locality); 
       NSLog(@"subLocality=%@", addressObj.subLocality); 
       NSLog(@"administrativeArea=%@", addressObj.administrativeArea); 
       NSLog(@"postalCode=%@", addressObj.postalCode); 
       NSLog(@"country=%@", addressObj.country); 
       NSLog(@"lines=%@", addressObj.lines); 
      } 
     }];