如何在 iOS SDK 上通过给定的邮政编码 (ZIP) 获取国家名称

Question

是否可以通过提供用户的邮政编码来获取国家名称？

我查看了 Core Location Framework，但通过给定邮政编码并查找国家/地区名称，它看起来并没有反过来工作。

The Core Location framework (CoreLocation.framework) provides location and heading information to apps. For location information, the framework uses the onboard GPS, cell, or Wi-Fi radios to find the user’s current longitude and latitude.

我希望 iOS SDK 上有 class，我真的不想使用其中一个 Google Maps API

Answer 1

是的，您的解决方案可以在 iOS SDK 中找到。

将文本字段连接到此操作：

- (IBAction)doSomethingButtonClicked:(id) sender
{
    CLGeocoder *geocoder = [[CLGeocoder alloc] init];
    [geocoder geocodeAddressString:yourZipCodeGoesHereTextField.text completionHandler:^(NSArray *placemarks, NSError *error) {

        if(error != nil)
        {
            NSLog(@"error from geocoder is %@", [error localizedDescription]);
        } else {
            for(CLPlacemark *placemark in placemarks){
                NSString *city1 = [placemark locality];
                NSLog(@"city is %@",city1);
                NSLog(@"country is %@",[placemark country]);
                // you'll see a whole lotta stuff is available
                // in the placemark object here...
                NSLog(@"%@",[placemark description]);
            }
        }
    }];
}

我不知道 iOS 是否支持所有国家/地区的邮政编码，但它绝对适用于英国（例如 "YO258UH" 的邮政编码）和加拿大 ("V3H5H1")

Answer 2

Michael Dautermann's 答案是正确的，只需为 swift (v4.2) 添加一个代码，如果有人来此 post 寻找它：

@IBAction func getLocationTapped(_ sender: Any) {

    guard let zipcode = zipcodeTxtField.text else {
        print("must enter zipcode")
        return
    }

    CLGeocoder().geocodeAddressString(zipcode) { (placemarks, error) in
        if let error = error{
            print("Unable to get the location: (\(error))")
        }
        else{
            if let placemarks = placemarks{

                // get coordinates and city
                guard let location = placemarks.first?.location, let city = placemarks.first?.locality else {
                    print("Location not found")
                    return
                }


                print("coordinates: -> \(location.coordinate.latitude) , \(location.coordinate.longitude)")
                print("city: -> \(city)")

                if let country = placemarks.first?.country{
                     print("country: -> \(country)")
                }

                //update UI on main thread
                DispatchQueue.main.async {
                    self.countryLbl.text = country
                }
            }
        }
    }
}

如何在 iOS SDK 上通过给定的邮政编码 (ZIP) 获取国家名称

How to get Country name by given Postal Code (ZIP) on iOS SDK

ios

iphone

geolocation

location

maps