如何通过Google Maps iOS API对地址进行地址解析? [英] How to geocode address by google maps iOS API?
问题描述
我找到了一种发送请求的方法:
I found one way to send request:
Google Maps Geocoding API请求采用以下形式:
A Google Maps Geocoding API request takes the following form:
https://maps.googleapis.com/maps/api/geocode/outputFormat?参数 其中outputFormat可以是以下值之一:
https://maps.googleapis.com/maps/api/geocode/outputFormat?parameters where outputFormat may be either of the following values:
json(推荐)指示以JavaScript对象表示法输出 (JSON);或xml表示XML的输出要访问Google Maps 通过HTTP的地址解析API,请使用:
json (recommended) indicates output in JavaScript Object Notation (JSON); or xml indicates output in XML To access the Google Maps Geocoding API over HTTP, use:
但这真的很不方便,是否有任何本机快速解决方法?
But it's really inconvenient, is there any native way in swift?
我查看了GMSGeocoder接口,并且只能通过其API进行反向地理编码.
I looked into GMSGeocoder interface and only reverse geocoding can be done by it's API.
推荐答案
正如其他人指出的那样,没有预定义的方法可以进行搜索,但是您可以使用网络请求来访问
As others have pointed out, there is not a predefined method to do the search, but you can use network request to access the Google Geocoding API yourself:
func performGoogleSearch(for string: String) {
strings = nil
tableView.reloadData()
var components = URLComponents(string: "https://maps.googleapis.com/maps/api/geocode/json")!
let key = URLQueryItem(name: "key", value: "...") // use your key
let address = URLQueryItem(name: "address", value: string)
components.queryItems = [key, address]
let task = URLSession.shared.dataTask(with: components.url!) { data, response, error in
guard let data = data, let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200, error == nil else {
print(String(describing: response))
print(String(describing: error))
return
}
guard let json = (try? JSONSerialization.jsonObject(with: data)) as? [String: Any] else {
print("not JSON format expected")
print(String(data: data, encoding: .utf8) ?? "Not string?!?")
return
}
guard let results = json["results"] as? [[String: Any]],
let status = json["status"] as? String,
status == "OK" else {
print("no results")
print(String(describing: json))
return
}
DispatchQueue.main.async {
// now do something with the results, e.g. grab `formatted_address`:
let strings = results.compactMap { $0["formatted_address"] as? String }
...
}
}
task.resume()
}
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