ios - 从 JSON 中获取字典的值

Question

我想从 JSON 中获取字符串的值，我能够将 JSON 解析为 Dictionary 但无法转换为字符串数组
从服务器

    {
        “ALL TEXT: [

  { 
    "text": "hello"
   },
   {
    "text": "hi"
   },
    {
    "text": "how r u"
    }
]
  }

我只想将文本值附加到我的字符串数组“textsList”

    var textsList : [String]()

这是我试过的

            URLSession.shared.dataTask(with: request) { (data, response, err) in                               
                   let json = try! JSONSerialization.jsonObject(with: data!, options: .allowFragments) as! Dictionary<String, Any>
                   
             
                let AllText = json[“ALL TEXT”] as!  [Dictionary<String, Any>]
                let value = JSON(AllText)
                
                AllText.forEach { fetch in
                  self.textsList.append(fetch.values) // ERROR no exact matches in call to instance method append
                                    }

           for(key, object) in value{
           print(value)  //output:  {"text": "hello" },{"text": "hi" }
           print(value.string)  //output:nil
            }

    
                   
               }.resume()

我只想将字典转换为数组，但也可以将 JSON 直接转换为字符串数组的替代解决方案。

Answer 1

调整代码:

    let string = """
        {
            "ALL TEXT": [
          {
            "text": "hello"
           },
           {
            "text": "hi"
           },
            {
            "text": "how r u"
            }
        ]
      }
  """
    
    guard let data = string.data(using: .utf8),
    let json = try? JSONSerialization.jsonObject(with: data, options: []) as? Dictionary<String, Any>,
    let allText = json["ALL TEXT"] as? [Dictionary<String, Any>]
        else {
        DDLog("json fail")
        return }
    DDLog(allText) // [["text": hello], ["text": hi], ["text": how r u]]
    
    let items: [String] = allText.compactMap { $0["text"] as? String }
    
    var textsList = [String]()
    textsList.append(contentsOf: items)

    DDLog(items) //["hello", "hi", "how r u"]
    DDLog(textsList) //["hello", "hi", "how r u"]

两个错误:

1. <"ALL TEXT> Missing right quote；
2. var textsList: [String]() =》var textsList = [String]()；