Question

我对swift相对较新，我在这里遇到一些问题。我有一个JSON已经序列化为字典。这就是我得到字典的方式

guard let result = try NSJSONSerialization.JSONObjectWithData(responseData, options: []) as? [String:AnyObject] else {
                    print("Error trying to convert data to JSON")
                    completionHandler(nil, response, error)
                    return
                }

这是我的词典

{
  "count": "68",
  "earthquakes": [
    {
      "src": "us",
      "eqid": "b000gbf8",
      "timedate": "2013-04-19 03:05:53",
      "lat": "46.1817",
      "lon": "150.7960",
      "magnitude": "7.2",
      "depth": "122.30",
      "region": "Kuril Islands"
    },
    {
      "src": "us",
      "eqid": "b000g7x7",
      "timedate": "2013-04-16 10:44:20",
      "lat": "28.1069",
      "lon": "62.0532",
      "magnitude": "7.8",
      "depth": "82.00",
      "region": "Iran-Pakistan border region"
    }
  ]
}

我希望将这些地震作为一个数组，我可以迭代其中的每个项目。

我尝试为那个

创建一个临时变量

let eqs = resultJSON["earthquakes"]

但是，我无法遍历eqs。我的观点是，我想制作一个来自该词典的数组。

怎么可能？任何帮助，将不胜感激。谢谢。

Answer 1

密钥earthquakes包含具有String个键和值

的数组

if let earthquakes = result["earthquakes"] as? [[String:String]] {
    for earthquake in earthquakes {
        let lat = earthquake["lat"]!
        let lon = earthquake["lon"]!
        // get other values
        print(lat, lon)
    }
}

从字典中获取值作为Swift 2中的数组

1 个答案: