Question

我在async中调用了一个JSON数据我的问题是，如何从标签内的所有人调用标题

{
"rss": {
"channel": {
    "atom:link": "",
    "title": "The Local",
    "link": "http://www.thelocal.se/",
    "description": "Sweden's news in English",
    "language": "en-us",
    "managingEditor": "TheLocal",
    "webMaster": "TheLocal",
    "generator": "TheLocal RSS Feed Generator",
    "item": {
        "title": "Knausgård savages the 'Cyclops' Swedes",
        "description": "Norwegian literary star Karl Ove Knausgård has launched an extraordinary attack on the Swedes, damning them as a race of narrow-minded “cyclops” who cannot tolerate ambiguity, have no understanding of literature, and are “full of hate and fear”.",
        "link": "http://www.thelocal.se/20150520/knausgrd-savages-the-cyclops-swedes",
        "pubDate": "2015-05-20 15:25:25",
        "guid": "http://www.thelocal.se/20150520/knausgrd-savages-the-cyclops-swedes"
    },
    "item": {
        "title": "Migration Board worker took bribes for passports",
        "description": "A court in Malmö has jailed a former Migration Board worker and his accomplice for taking bribes in exchange for residence permits and passports for asylum seekers desperate to stay in Sweden.",
        "link": "http://www.thelocal.se/20150520/two-found-guilty-in-migration-board-bribery-case",
        "pubDate": "2015-05-20 12:32:46",
        "guid": "http://www.thelocal.se/20150520/two-found-guilty-in-migration-board-bribery-case"
    },
    "item": {
        "title": "Two million Swedes design 'house of clicks'",
        "description": "A team of award-winning architects have joined forces with two million Swedes to design the country’s most sought-after home.",
        "link": "http://www.thelocal.se/20150520/two-million-swedes-design-dream-house-of-clicks",
        "pubDate": "2015-05-20 12:01:35",
        "guid": "http://www.thelocal.se/20150520/two-million-swedes-design-dream-house-of-clicks"
    },

我现在拥有的是：

if var jsonArray = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &error) as? NSDictionary {

                            println("jsonArray: \(jsonArray)")

                            dispatch_async(dispatch_get_main_queue()) {
                                for var i:Int = 0; i < 10; i++ {

                                    var title:String = jsonArray.valueForKeyPath("rss.channel.item.title") as String
                                    self.tableData.append(title)
                                    var content:String = jsonArray.valueForKeyPath("rss.channel.item.description") as String
                                    self.detail.append(content)
                                    self.rssTable.reloadData()
                                }
                            }

问题是，无论我怎么想，我都不能调用多个项目，因为json没有排序，并且使用某种形式的数组可能就是答案。

任何想法如何解决数据。数据进入一个名为tableData的数组，然后显示在表格中。

Answer 1

这是适用于所有RSS源的解决方案。

for var i:Int = 0; i < 10; i++ {

                                    var title:String = jsonArray.valueForKeyPath("rss.channel.item:\(i).title") as String
                                    self.tableData.append(title)
                                    var content:String = jsonArray.valueForKeyPath("rss.channel.item:\(i).description") as String
                                    self.detail.append(content)
                                    var link:String = jsonArray.valueForKeyPath("rss.channel.item:\(i).link") as String
                                    self.linkData.append(link)

                                    self.rssTable.reloadData()
                                }

在JSON中处理RSS

1 个答案: