你可以在地圖中創建一個註解嗎？

Question

今天我幾次「搜索」這個問題沒有運氣。我想知道是否可以在地圖中創建一個註釋，而不是使用lat/Long方法。我目前的代碼如下。

//1. Create a coordinate for use with the annotation 
    CLLocationCoordinate2D Sharon; 
    Sharon.latitude = 38.952223; 
    Sharon.longitude = -77.193646; 

    Annotation *myAnnotation = [Annotation alloc]; 
    myAnnotation.coordinate = Sharon; 
    myAnnotation.title = @"Sharon Lodge #327"; 
    myAnnotation.subtitle = @"McLean, VA"; 

Answer 1

嘗試這樣，

NSString *location = "some address, state, and zip"; 
CLGeocoder *geocoder = [[CLGeocoder alloc] init]; 
      [geocoder geocodeAddressString:location 
       completionHandler:^(NSArray* placemarks, NSError* error){ 
        if (placemarks && placemarks.count > 0) { 
         CLPlacemark *topResult = [placemarks objectAtIndex:0]; 
         MKPlacemark *placemark = [[MKPlacemark alloc] initWithPlacemark:topResult]; 

         MKCoordinateRegion region = self.mapView.region; 
         region.center = placemark.region.center; 
         region.span.longitudeDelta /= 8.0; 
         region.span.latitudeDelta /= 8.0; 

         [self.mapView setRegion:region animated:YES]; 
         [self.mapView addAnnotation:placemark]; 
        } 

      ]; 

用於註釋標題和副標題，

CLPlacemark *topResult = [placemarks objectAtIndex:0]; 

// Create an MLPlacemark 

MKPlacemark *placemark = [[MKPlacemark alloc] initWithPlacemark:topResult]; 

// Create an editable PointAnnotation, using placemark's coordinates, and set your own title/subtitle 
MKPointAnnotation *point = [[MKPointAnnotation alloc] init]; 
point.coordinate = placemark.coordinate; 
point.title = @"Sample Location"; 
point.subtitle = @"Sample Subtitle"; 


// Set your region using placemark (not point)   
MKCoordinateRegion region = self.mapView.region; 
region.center = placemark.region.center; 
region.span.longitudeDelta /= 8.0; 
region.span.latitudeDelta /= 8.0; 

// Add point (not placemark) to the mapView            
[self.mapView setRegion:region animated:YES]; 
[self.mapView addAnnotation:point]; 

// Select the PointAnnotation programatically 
[self.mapView selectAnnotation:point animated:NO]; 

Answer 2

你可以得到緯度長期使用谷歌API或CLGeocoder地址

谷歌API

Link 1Link 2

CLGeocoder

-(id)getAnnotationAryFromAddress 
{ 

     CLGeocoder *geocoder2 = [[CLGeocoder alloc] init]; 

    NSString *addressString = "string contain address, city, state and zip"; 

    [geocoder2 geocodeAddressString:addressString 
        completionHandler:^(NSArray *placemarks, NSError *error) { 

         if (error) { 
          //NSLog(@"Geocode failed with error: %@", error); 
          return; 
         } 

         if (placemarks && placemarks.count > 0) 
         {       
          CLPlacemark *placemark = [placemarks objectAtIndex:0]; 

          CLLocation *location = placemark.location; 

          RegionAnnotation *annotation = [[RegionAnnotation alloc] init]; 
          CLLocationCoordinate2D theCoordinate1; 
          theCoordinate1 = location.coordinate; 

          annotation.title = @"Title"; 

          annotation.subtitle = @"SubTitle"; 

          annotation.tag = i; 

          annotation.coordinate = theCoordinate1; 

          [self.mapView addAnnotation:annotation]; 
         } 
        }]; 
    } 


    return self; 
}