这是我网址的一部分
<cities>
<country name="Абхазия">
<city id="37188" region="27028" head="" type="3" country="Абхазия" part="" resort="" climate="">Новый Афон</city>
<city id="37178" region="10282" head="" type="3" country="Абхазия" part="" resort="" climate="">Пицунда</city>
<city id="37187" region="37187" head="" type="3" country="Абхазия" part="" resort="" climate="">Гудаута</city>
<city id="37172" region="10280" head="" type="3" country="Абхазия" part="" resort="" climate="">Гагра</city>
<city id="37189" region="10281" head="0" type="3" country="Абхазия" part="" resort="0" climate="">Сухум</city>
</country>
用户键入城市名称,例如：“Пицунда”,我想获取其ID.对于“Пицунда”,id为“10282”.
下面我发布了我的工作代码.
var parser: NSXMLParser!
var city: String = String()
var ifDirOK = false
var ifCityNameOK = false
override func viewDidLoad() {
super.viewDidLoad()
let url: NSURL = NSURL(string: "https://pogoda.yandex.ru/static/cities.xml")!
parser = NSXMLParser(contentsOfURL: url)
parser.delegate = self
parser.parse()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func parser(parser: NSXMLParser!,didStartElement elementName: String!,namespaceURI: String!,qualifiedName qName: String!,attributes attributeDict: [NSObject : AnyObject]!) {
//let cityID = attributeDict ["id"] as? NSString
if (elementName == "city"){
ifDirOK = true
}
}
func parser(parser: NSXMLParser!,foundCharacters string: String!) {
var data = string.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet())
if (data == city){
ifCityNameOK = true
}
}
func parser(parser: NSXMLParser!,foundAttributeDeclarationWithName attributeName: String!,forElement elementName: String!,type: String!,defaultValue: String!) {
if (ifDirOK && ifCityNameOK){
println("\(attributeName)")
}
}
func parser(parser: NSXMLParser!,didEndElement elementName: String!,qualifiedName qName: String!) {
}
毕竟,我想将id传递给另一个URL文件(export.yandex.ru/weather-ng/forecasts/{id of the city} .xml)并解析它.我是否需要创建另一个Swift类并以某种方式将其与第一个连接？
建立[city：id]字典可以为您提供解决方案.
我已经基于关于NSXMLParser生命周期的文章在 http://www.codeproject.com/Articles/248883/Objective-C-Fundamentals-NSXMLParser实现了一个简单的解决方案.
我已经基于关于NSXMLParser生命周期的文章在 http://www.codeproject.com/Articles/248883/Objective-C-Fundamentals-NSXMLParser实现了一个简单的解决方案.
当元素启动时调用以下方法.
您可以检索city id属性并将其保存在实例级变量中,以便您可以在下一个方法中使用它.
func parser(parser: NSXMLParser,didStartElement elementName: String,namespaceURI: String?,qualifiedName qName: String?,attributes attributeDict: [NSObject : AnyObject])
然后,当解析器在开始和结束之间看到任何内容时调用Following方法.
func parser(parser: NSXMLParser!,foundCharacters string: String!)
所以,你可以从这里获得城市名称.
现在我们有城市ID和城市名称,以便在[city：id]字典中添加新项目.
一旦你构建了字典,搜索就会非常简单.
这是我的工作测试代码.
class ViewController: UIViewController,NSXMLParserDelegate{
var parser: NSXMLParser!
var city: String = String()
var ifDirOK = false
var ifCityNameOK = false
var element : String?
var value: String=String()
var dic = Dictionary<String,String>()
var currentCityId:String?
@IBOutlet weak var result: UILabel!
@IBOutlet weak var search: UITextField! //search text
@IBAction func ActionGoGetIt(sender: AnyObject) {
self.result.text=dic[self.search.text]
}
override func viewDidLoad() {
super.viewDidLoad()
let url: NSURL = NSURL(string: "https://pogoda.yandex.ru/static/cities.xml")!
parser = NSXMLParser(contentsOfURL: url)
parser.delegate = self
parser.parse()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func parser(parser: NSXMLParser,attributes attributeDict: [NSObject : AnyObject]) {
element = elementName
if (element == "city"){
ifDirOK = true
let cityID = attributeDict ["id"] as? NSString
self.currentCityId = cityID as? String
}
}
func parser(parser: NSXMLParser!,foundCharacters string: String!) {
var data = string.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet())
if (!data.isEmpty){
if (element == "city"){
dic[data] = self.currentCityId as String?
}
}
}
func parser(parser: NSXMLParser,foundAttributeDeclarationWithName attributeName: String,forElement elementName: String,type: String?,defaultValue: String?) {
if (ifDirOK && ifCityNameOK){
println("\(attributeName)")
}
}
func parser(parser: NSXMLParser,didEndElement elementName: String,qualifiedName qName: String?) {
}
}
