如何在 iOS Swift 中获取 json 值 4

Question

{ "pages": 1, "posts": [ { "id": 2345, "categories": [], "tags": [], "author": { "id": 1, "slug": "admin", "url": "", "description": "" }, "comments": [], "custom_fields": { "slide_template": [ "default" ], "request_status": [ "Pending Review" ], "branch": [ "Branch B" ], "assigned_to": [ "Managing Director" ], "category": [ "Equipment" ], "priority": [ "High" ] } },

这是我的 swift 编码直到 "custom_fields" 我可以获取值，但在那之后我无法获取请任何人帮助我

let url = NSURL(string: urlForCharts)
     do{
        URLSession.shared.dataTask(with: (url as URL?)!, completionHandler: {(data, response, error) -> Void in
            if let data = data {
                if let jsonObj = try? JSONSerialization.jsonObject(with: data, options: .allowFragments) as? NSDictionary {
            if let postArray = jsonObj!.value(forKey: "posts") as? NSArray {
               for status in postArray{
                   if let tagsDict = status as? NSDictionary {
                if let tagsArray =  tagsDict.value(forKey: "custom_fields") as? NSArray {

                        for statusArray in tagsArray{

                            if let statusDict = statusArray as? NSDictionary {
                        if let status = statusDict.value(forKey: "request_status") {

                            self.ticketStatus.append((status as? String)!)
                            self.ticketStatus = self.ticketStatus.sorted(by: <)

Answer 1

您的 custom_fields 是 Dictionary 的类型，而不是 NSArray。

"custom_fields": {
                    "slide_template": ["default"],
                    "request_status": ["Pending Review"],
                    "branch": ["Branch B"],
                    "assigned_to": ["Managing Director"],
                    "category": ["Equipment"],
                    "priority": ["High"]
                }

所以它应该是这样的：

if let tagsDictionary =  tagsDict.value(forKey: "custom_fields") as? NSDictionary {
   if let slide_template = tagsDictionary.value(forKey: "slide_template") as? NSArray{
   }
   if let request_status = tagsDictionary.value(forKey: "request_status") as? NSArray{
       if let resquestStatus = request_status.first as? String{
         //append this value to your array
       } 
   }
}

Answer 2

试试这个

if let tagsArray =  tagsDict.value(forKey: "custom_fields") as? NSDictionary {
}

如何在 iOS Swift 中获取 json 值 4

How to Fetch json value in iOS Swift 4

json

ios

swift4

xcode9