无法将来自 geoCoder 的所有注释放在地图上
Can't place all annotation from geoCoder on Map
-(void)showLocalRestaurantsWithDishRated:(MKUserLocation *)userLocation {
CLGeocoder *geoCoder = [[CLGeocoder alloc] init];
[[RestaurantController sharedInstance] getRestaurantsFromParse:^(NSMutableArray *restaurants) {
NSLog(@"%@",restaurants);
for (Restaurant *restaurant in restaurants) {
NSLog(@"%@", restaurant.address);
[geoCoder geocodeAddressString:restaurant.address completionHandler:^(NSArray *placemarks, NSError *error) {
NSLog(@"%@",placemarks);
for (MKPlacemark *placemark in placemarks) {
MKPlacemark *newPlaceMark = [[MKPlacemark alloc] initWithPlacemark:placemark];
MKPointAnnotation *point = [[MKPointAnnotation alloc] init];
point.coordinate = newPlaceMark.coordinate;
point.title = restaurant.restaurantName;
point.subtitle = restaurant.address;
CLLocationCoordinate2D location = CLLocationCoordinate2DMake(placemark.location.coordinate.latitude, placemark.location.coordinate.longitude);
MKCoordinateRegion region = self.mapView.region;
region.span.latitudeDelta = 0.01;
region.span.longitudeDelta = 0.01;
region.center = location;
[self.mapView setRegion:region animated:YES];
[self.mapView addAnnotation:point];
}
}];
}
}];
}
restaurant.address
中的地址是这些:
- 2250 N University Pkwy Provo, UT 84604
- 2045 W Center St Provo, UT 84601
- 1200 N University Ave Provo, UT 84604
- 80 W Center St Provo, UT 84601
- 434 W Center St Provo, UT 84601
问题是只有第一个地址被添加到地图中。
您需要重构您的代码。您想要首先创建一个包含要添加到地图的所有位置的数组。完成后,调用 addAnnotations
(使用 "s")添加所有注释。您还需要根据您所有位置的跨度来计算您的区域,以确保地图显示您的所有位置。然后在计算出跨越所有位置所需的区域后仅调用一次 setRegion
。
-(void)showLocalRestaurantsWithDishRated:(MKUserLocation *)userLocation {
CLGeocoder *geoCoder = [[CLGeocoder alloc] init];
[[RestaurantController sharedInstance] getRestaurantsFromParse:^(NSMutableArray *restaurants) {
NSLog(@"%@",restaurants);
for (Restaurant *restaurant in restaurants) {
NSLog(@"%@", restaurant.address);
[geoCoder geocodeAddressString:restaurant.address completionHandler:^(NSArray *placemarks, NSError *error) {
NSLog(@"%@",placemarks);
for (MKPlacemark *placemark in placemarks) {
MKPlacemark *newPlaceMark = [[MKPlacemark alloc] initWithPlacemark:placemark];
MKPointAnnotation *point = [[MKPointAnnotation alloc] init];
point.coordinate = newPlaceMark.coordinate;
point.title = restaurant.restaurantName;
point.subtitle = restaurant.address;
CLLocationCoordinate2D location = CLLocationCoordinate2DMake(placemark.location.coordinate.latitude, placemark.location.coordinate.longitude);
MKCoordinateRegion region = self.mapView.region;
region.span.latitudeDelta = 0.01;
region.span.longitudeDelta = 0.01;
region.center = location;
[self.mapView setRegion:region animated:YES];
[self.mapView addAnnotation:point];
}
}];
}
}];
}
restaurant.address
中的地址是这些:
- 2250 N University Pkwy Provo, UT 84604
- 2045 W Center St Provo, UT 84601
- 1200 N University Ave Provo, UT 84604
- 80 W Center St Provo, UT 84601
- 434 W Center St Provo, UT 84601
问题是只有第一个地址被添加到地图中。
您需要重构您的代码。您想要首先创建一个包含要添加到地图的所有位置的数组。完成后,调用 addAnnotations
(使用 "s")添加所有注释。您还需要根据您所有位置的跨度来计算您的区域,以确保地图显示您的所有位置。然后在计算出跨越所有位置所需的区域后仅调用一次 setRegion
。