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我正在使用MKReverseGeocoder反向地理編碼經度/緯度地址。但是，我無法確定哪個Annotation的字幕將被設置。爲了擴大這一點，我在每個註釋上調用一個反向地址解析來確定地址，然後我想將他們的字幕文本設置爲他們的地址。我設法做了第一次註釋，但我不確定我會如何做第二次註釋。MKReverseGeocoder設置哪個註釋的副標題
這裏是我的代碼：
- (void)loadAnnotations {
Annotation *annotation1 = [[Annotation alloc] initWithCoordinate:CLLocationCoordinate2DMake(a,b)];
annotation1.title = @"Anno1n";
CLLocation *annoe = [[CLLocation alloc] initWithLatitude:annotation1.coordinate.latitude longitude:annotation1.coordinate.longitude];
CLLocation *usrloc = [[CLLocation alloc] initWithLatitude:mapView.userLocation.coordinate.latitude longitude:mapView.userLocation.coordinate.longitude];
NSLog(@"%.2f km", [annoe distanceFromLocation:usrloc]/1000);
MKReverseGeocoder *geo = [[MKReverseGeocoder alloc] initWithCoordinate:annotation1.coordinate];
[geo setDelegate:self];
[geo start];
[mapView addAnnotation:annotation1];
Annotation *annotation2 = [[Annotation alloc] initWithCoordinate:CLLocationCoordinate2DMake(c,d)];
annotation2.title = @"Anno2";
geo = [[MKReverseGeocoder alloc] initWithCoordinate:annotation2.coordinate];
[geo start];
[mapView addAnnotation:annotation2];
}
- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFindPlacemark:(MKPlacemark *)placemark {
NSArray *array = [[placemark addressDictionary] objectForKey:@"FormattedAddressLines"];
if (geocoder.coordinate.latitude == mapView.userLocation.coordinate.latitude && geocoder.coordinate.longitude) {
mapView.userLocation.title = @"Current Location";
mapView.userLocation.subtitle = [NSString stringWithFormat:@"%@ %@", [array objectAtIndex:0], [array objectAtIndex:1]];
}
else {
Annotation *annot = (Annotation *)[[mapView annotations] objectAtIndex:1];
[annot setSubtitle:[NSString stringWithFormat:@"%@ %@", [array objectAtIndex:0], [array objectAtIndex:1]]];
//NSLog(@"%@", [placemark addressDictionary]);
}
}
請讓我知道我能做到這一點。