如何从 CLGeocoder geocodeAddressString() 中的完成处理程序更新列表中的地址

Posted 2023-03-05

【中文标题】如何从 CLGeocoder geocodeAddressString() 中的完成处理程序更新列表中的地址

【英文标题】：How to update address in list from completion handler in CLGeocoder geocodeAddressString()

【发布时间】：2017-03-22 17:48:22

【问题描述】：

我有一个要更新的地址列表，还要添加经纬度。将地址列表读入数组后，我调用 CLGeocoder 中的 geocodeAddressString 函数。

在完成处理程序中，我如何知道地址列表中的哪个索引用于进行 geocodeAddressString 调用？

基本上我想设置

locations[1].MailAddr1 = placemark.name
locations[1].MailCity = placemark.locality
locations[1].MailState = placemark.administrativeArea
locations[1].MailZip = placemark.postalCode
locations[1].lat = placemark.location!.coordinate.latitude
locations[1].long = placemark.location!.coordinate.longitude

如何返回位置数组以及如何知道索引，在本例中 = 1？

我希望能够遍历整个数组。

    let locations = ReadCSV()

    let address = locations[1].MailAddr1 + ", " + locations[1].MailCity + ", " + locations[1].MailState + ", " +  locations[1].MailZip + ", " + locations[1].MailCountry

    let geocoder = CLGeocoder()
    geocoder.geocodeAddressString(address, completionHandler: (placemarks, error) -> Void in
        if((error) != nil)
            print("Error", error)
        
        if let placemark: CLPlacemark = placemarks?.first 
            let name = placemark.name
            let address = placemark.thoroughfare
            let locality = placemark.locality
            let zip = placemark.postalCode
            let subLocality = placemark.subLocality
            let country = placemark.country

            let coordinates:CLLocationCoordinate2D = placemark.location!.coordinate
            let location: CLLocation = placemark.location!


        
    )

【参考方案1】：

我假设你的位置是一个班级：

检查你的数组，然后使用这个位置：

for location in locations  

//...
    // in your completion handler
    location.lat = placemark.location!.coordinate.latitude
//...

PS：如果 location 是一个结构，那么你需要做一个不同的策略

【参考方案2】：

尝试制作函数并将每个位置作为输入参数发送

例子：

for location in locations 

 setAddressOflocation(location)



func getAddressOflocation (locationObject : inout  CLLocation) 

let address = locationObject.MailAddr1 + ", " + locationObject.MailCity + ", " + locationObject.MailState + ", " +  locationObject.MailZip + ", " + locationObject.MailCountry

let geocoder = CLGeocoder()
geocoder.geocodeAddressString(address, completionHandler: (placemarks, error) -> Void in
    if((error) != nil)
        print("Error", error)
    
    if let placemark: CLPlacemark = placemarks?.first 
        let name = placemark.name
        let address = placemark.thoroughfare
        let locality = placemark.locality
        let zip = placemark.postalCode
        let subLocality = placemark.subLocality
        let country = placemark.country

        let coordinates:CLLocationCoordinate2D = placemark.location!.coordinate
        let location: CLLocation = placemark.location!

        locationObject.lat = placemark.location!.coordinate.latitude
        locationObject.long = placemark.location!.coordinate.longitude

    
)