我是iOS和Swift开发环境的新手.我试图使用Alamofire提取JSON,使用AlamofireObjectMapper将检索到的JSON集合映射回我的Swift对象.
I m new to iOS and Swift development environment. I was trying to use Alamofire for pulling JSON and AlamofireObjectMapper for Mapping the retrieved JSON collections back to my Swift Object.
问题是我可以通过Alamofire请求获取JSON,并显示了计数,但映射部分似乎显示为nil.是我一直错过的事情.感谢帮助.
The issue is I m able to fetch the JSON thru Alamofire request and the count is shown, but the mapping part seems to be showing nil. Is something I had been missed out . Appreciate help.
import UIKit import CoreLocation import ObjectMapper class BranchObjectMapper : Mappable { // MARK: Properties var id: Int? var cityId: Int? var areaId: Int? var name: String? var nameAr: String? var branchAddr: String? var branchAddr2: String? var location: CLLocation? required init?(_ map: Map) { mapping(map) } func mapping(map: Map) { id <- map["id"] cityId <- map["cityId"] areaId <- map["areaId"] name <- map["name"] nameAr <- map["nameAr"] branchAddr <- map["branchAddr"] branchAddr2 <- map["branchAddr2"] location <- map["location"] } }在viewDidLoad()
Alamofire.request(.GET, UrlEndpoints.branchUrl()).responseArray { (response: Response<[BranchObjectMapper], NSError>) in self.branchList = response.result.value! print(self.branchList.count) // count is correct for branch in self.branchList { print(branch.id) // prints nil print(branch.id) // prints nil } }预先感谢
完整的JSON响应如下所示.在模型中只构造了需要的.
The complete JSON response looks like below. Have constructed only needed ones in Model.
[{"Id":"16","areaId":"17","name":"Al Aqiq","cityId":4," Zip:"," nameAr:" \ u0637 \ u0631 \ u064a \ u0642 \ u0627 \ u0644 \ u0645," branchAddr:"测试," branchAddr2:"测试纬度":"24.60425",经度":"46.629631","cityId":"1}]
[{"Id":"16","areaId":"17","name":"Al Aqiq","cityId":4","Zip":"","nameAr":"\u0637\u0631\u064a\u0642 \u0627\u0644\u0645","branchAddr":"test","branchAddr2":"test"Latitude":"24.60425","Longitude":"46.629631","cityId":"1"}]
推荐答案
我认为您缺少ObjectMapper lib的正确文档. 选中此 Github ObjectMapper .
i think you are missing the right documentation of ObjectMapper lib. Check this Github ObjectMapper.
这些是lib支持的类型:
These are the types supported by the lib:
- Int
- Bool
- Double
- Float
- String
- RawRepresentable(枚举)
- Array<AnyObject>
- Dictionary<String, AnyObject>
- Object<T: Mappable>
- Array<T: Mappable>
- Array<Array<T: Mappable>>
- Set<T: Mappable>
- Dictionary<String, T: Mappable>
- Dictionary<String, Array<T:Mappable>>
- 以上所有选项
- 上述内容的未包装选项
- Int
- Bool
- Double
- Float
- String
- RawRepresentable (Enums)
- Array<AnyObject>
- Dictionary<String, AnyObject>
- Object<T: Mappable>
- Array<T: Mappable>
- Array<Array<T: Mappable>>
- Set<T: Mappable>
- Dictionary<String, T: Mappable>
- Dictionary<String, Array<T:Mappable>>
- Optionals of all the above
- Implicitly Unwrapped Optionals of the above
因此,如果您尝试映射不在该列表中的对象,则结果为nil.
So, if you are trying to map an Object not in that list, the result is nil.
您的情况是var location: CLLocation?.
如果需要映射CLLocation对象,一种方法是使用所有属性映射CustomCLLocation,如下所示: JSON(我不知道您的Json,这是一个示例)
If you need to map CLLocation Object, one way is to map a CustomCLLocation with all properties as follows: JSON(i don't know your Json, this is an example)
"location":{ "long": 43.666, "lat": 73.4 }快速:创建另一个文件"CustomCLLocation",例如第一个文件,但用于将CLLocation与您的Json映射
Swift: create another file "CustomCLLocation" for example like the first one but for mapping CLLocation with your Json
var latitude: Double? var longitude: Double? required init?(_ map: Map) { mapping(map) } func mapping(map: Map) { longitude <- map["long"] latitude <- map["lat"] }现在,您可以映射伪造" CLLocation对象: var location:CustomCLLocation?
and now, you can map an "fake" CLLocation Object: var location: CustomCLLocation?
然后,如果您想要一个真正的CLLocation.只需创建一个像这样的Simply Extension(将其添加到CustomCLLocation文件中)即可:
Then if you want a really CLLocation. just create an Simply Extension like that(add it in the CustomCLLocation file):
extension CLLocation { public class func createFromCustomCLLocation(custom: CustomCLLocation) -> CLLocation { return self.init(custom.latitude,custom.longitude) } }使用转换
var locationCLL = CLLocation.createFromCustomCLLocation(location) // now is a CLLocation已Alamofire请求
我对iOS 8.0 +的最新版本的AlamofireObjectMapper的应用程序有相同的请求
Edited: Alamofire Request
I have the same request on my app with the last version of AlamofireObjectMapper for ios 8.0 +
Alamofire.request(.GET, UrlEndpoints.branchUrl()).responseArray { (response: [BranchObjectMapper]?, error : ErrorType?) in if(error != nil) { print(error) }else{ print("data downloaded") if let response = response { branchList(response) for branch in self.branchList { print(branch.id) print(branch.name) } } } }更多推荐
使用Alamofire ObjectMapper映射到Swift对象的问题显示为零
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