在iOS 8.0默认地图应用程序中,点击POI点时,您将获得详细信息,包括POI名称和地址。
我的问题是:
是否可以使用MKMapView或IOS本机代码执行相同的操作?
如果没有,我如何获得带有地图比例的POI数据(因为地图上显示的POI点依赖于区域和比例)。因此,我需要获取数据以了解哪个POI点基于此区域和比例显示。
答案 0 :(得分:4)
要获取详细信息,包括POI的地址,我认为您可以分两步执行此操作:
获取POI的坐标
转换它们以获取地址信息;看到这个美丽的例子:
CLGeocoder *ceo = [[CLGeocoder alloc]init];
CLLocation *loc = [[CLLocation alloc]initWithLatitude:32.00 longitude:21.322]; //insert your coordinates
[ceo reverseGeocodeLocation:loc
completionHandler:^(NSArray *placemarks, NSError *error) {
CLPlacemark *placemark = [placemarks objectAtIndex:0];
NSLog(@"placemark %@",placemark);
//String to hold address
NSString *locatedAt = [[placemark.addressDictionary valueForKey:@"FormattedAddressLines"] componentsJoinedByString:@", "];
NSLog(@"addressDictionary %@", placemark.addressDictionary);
NSLog(@"placemark %@",placemark.region);
NSLog(@"placemark %@",placemark.country); // Give Country Name
NSLog(@"placemark %@",placemark.locality); // Extract the city name
NSLog(@"location %@",placemark.name);
NSLog(@"location %@",placemark.ocean);
NSLog(@"location %@",placemark.postalCode);
NSLog(@"location %@",placemark.subLocality);
NSLog(@"location %@",placemark.location);
//Print the location to console
NSLog(@"I am currently at %@",locatedAt);
}
else {
NSLog(@"Could not locate");
}
];
如果您需要以地图区域为中心,您可以这样做:
- (void)gotoLocation
{
MKCoordinateRegion newRegion;
newRegion.center.latitude = NY_LATITUDE;
newRegion.center.longitude = NY_LONGTITUDE;
newRegion.span.latitudeDelta = 0.5f;
newRegion.span.longitudeDelta = 0.5f;
[self.myMapView setRegion:newRegion animated:YES];
}
我希望这些代码示例可以帮助您:)
要详细了解 MKMapViewClass (我推荐),请查看Apple Documentation或this beatiful example on how to manage POI with Apple Maps。