我正在使用swiftjson(https://github.com/lingoer/SwiftyJSON)遍历下面的json:
{
"response": {
"codes": [
{
"id": "abc",
"name": "Bob Johnson"
},
{
"id": "def",
"name": "Benson"
}
]
}
}
我正试图循环通过
codes
块。到目前为止我在尝试:let json = JSON(data: getJSON("<json_url>"))
var people = json["response"]["codes"]
let dataArray = nearBy.arrayValue!;
println("Data items count: \(dataArray.count)")
for item: AnyObject in dataArray {
if let userName = item["name"].string{
//Calm down, take it easy, the ".string" property still produces the correct Optional String type with safety
println("Value" + userName)
}
}
我不确定我做的是否正确。我应该如何正确地循环
dataArray
,或者也许有一种比我尝试的更好的循环方式?除了使用swiftjson之外,我还尝试使用下面的方法来解析json,但是我不知道如何循环遍历这些项:
func parseJSON(inputData: NSData) -> NSDictionary{
var error: NSError?
var boardsDictionary: NSDictionary = NSJSONSerialization.JSONObjectWithData(inputData, options: NSJSONReadingOptions.MutableContainers, error: &error) as NSDictionary
return boardsDictionary
}
如果这两种方法都奏效的话,那将是有帮助的。
最佳答案
{ "callout":{ "title":"Callout title","image":"http://image","url":"http://callouturl"},"categories":[ { "category":"Category 1","articles":[ { "title":"title 1","image":"image 1","url":"http://url1.com"},{ "title":"title 2","image":"image 2","url":"http://url2.com"}]},{ "category":"Category 2","articles":[ { "title":"title 3","image":"image 3","url":"http://url3.com"},{ "title":"title 4","image":"image 4","url":"http://url4.com"}]}]}
上面给出了json的snippit。我用swiftyjson进行解析,如下所示:
let json:JSON = JSON(data:myData)
var catCollections:[CategoryCollection] = []
//gather category collections of articles
for (index: String, cat: JSON) in json["categories"] {
//collect articles within each category
var articles:[ArticleItem] = []
for(index:String, art:JSON) in cat["articles"] {
let artTitle = art["title"].string
let artImage = art["image"].string
let artUrl = art["url"].string
if(artTitle != nil && artUrl != nil) {
let articleItem = ArticleItem(title: artTitle!, url: artUrl!, imageURL: artImage)
articles.append(ArticleItem)
}
}
//create category collection for each category
let catTitle = cat["category"].string ?? ""
let catCollection = CategoryCollection(title: catTitle, articles: articles)
catCollections.append(catCollection)
}
var callout:CalloutItem?
//check for existance of callout item
if let calloutTitle = json["callout"]["title"].string {
if let calloutUrl = json["callout"]["url"].string {
callout = CalloutItem(title: calloutTitle, url: calloutUrl, imageURL: json["callout"]["image"].string)
}
}
关于json - 使用swiftyjson遍历对象,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/26020094/