如何使用CoreLocation快速从英国邮政编码中获取自治市镇？ [英] How to get borough from UK postcode using CoreLocation in swift?

问题描述

有人知道我是否可以使用CoreLocation框架从英国邮政编码中获得自治市镇？在下面列出的函数中，不返回自治市镇。它应该返回Tower Hamlets。

Does anyone know if I can get the borough from a UK post code using CoreLocation framework? In the function listed below, the borough is not returned. It should return Tower Hamlets.

  func getLocationFrom(postalCode : String){
    let geocoder = CLGeocoder()

    geocoder.geocodeAddressString(postalCode) {
        (placemarks, error) -> Void in
        let placemark = placemarks?[0] 
             print("placemark.addressDictionary are \(placemark.addressDictionary)") //does not print Canary Wharf  
    }
}

print(getLocationFrom(postalCode:"E14 9LR")) //does not print Tower Hamlets, it prints London, which is the city, not the borough..

推荐答案

为了从邮政编码中获取位置信息，您只需下标地标数组，然后访问所需indexPath中元素的属性 locality 。我的错误是我尝试访问地标数组上的另一个属性，即 addressDictionary ，该属性未产生预期的结果。

In order to get the locality from a postcode you just have to subscript placemarks array and then access the property locality for the element at the indexPath you want. My mistake was that I was trying to access another property on the placemarks array, namely addressDictionary which was not producing the expected result.

 func getLocationFrom(postalCode: String, callback: @escaping(_ locality: String?) -> Void){


    let geocoder = CLGeocoder()
    geocoder.geocodeAddressString(postalCode) {
        (placemarks, error) -> Void in

       callback(placemarks?[0].locality)

    }

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