试图将我的注释数据（姓名、地址、电话号码、网址、描述等）传递给带有表格的 DetailViewController。卡住----请阅读代码。数据未通过 calloutAccessoryTapped 传递。帮助？
- (IBAction)gasButton:(id)sender {
[self.mapView removeAnnotations:self.mapView.annotations];
self.localSearchRequest = [[MKLocalSearchRequest alloc] init];
self.localSearchRequest.region = self.mapView.region;
self.localSearchRequest.naturalLanguageQuery = @"gas station";
self.localSearch = [[MKLocalSearch alloc] initWithRequest:self.localSearchRequest];
[self.localSearch startWithCompletionHandler:^(MKLocalSearchResponse *response, NSError *error) {
if(error){
NSLog(@"localSearch startWithCompletionHandlerFailed! Error: %@", error);
return;
} else {
for(mapItem in response.mapItems){
MKPointAnnotation *zip = [[MKPointAnnotation alloc] init ];
zip.coordinate = mapItem.placemark.location.coordinate;
zip.title = mapItem.name;
self.mapView.delegate = self;
[self.mapView addAnnotation: zip];
[self.mapView selectAnnotation:zip animated:YES];
[self.mapView setUserTrackingMode:MKUserTrackingModeFollow];
NSLog(@"%@ - 1", mapItem.name);
CLLocation *loc1 = [[CLLocation alloc] initWithLatitude:zip.coordinate.latitude longitude:zip.coordinate.longitude];
CLLocation *loc2 = [[CLLocation alloc] initWithLatitude:self.mapView.userLocation.coordinate.latitude longitude:self.mapView.userLocation.coordinate.longitude];
CLLocationDistance distance = [loc1 distanceFromLocation:loc2];
NSString *dist = [[NSString alloc] initWithFormat:@"%.2f miles", distance * 0.000621371192];
zip.subtitle = dist;
}
}
}];
}
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation
{
MKPinAnnotationView *annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"MYVC"];
if ([annotation isKindOfClass:[MKUserLocation class]])
{
return nil;
}
else if ([annotation isKindOfClass: [MKPointAnnotation class] ])
{
annotationView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
annotationView.enabled = YES;
annotationView.animatesDrop = YES;
annotationView.pinColor = MKPinAnnotationColorGreen;
annotationView.canShowCallout = YES;
NSLog(@"%@ - 2", mapItem.name);
return annotationView;
}
return nil;
}
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
NSLog(@"%@ - tapped", mapItem.name);
//STUCK HERE - mapItem.name is (null)
}