了解iOS中的NSXMLParser

我的Parser类看起来像：

#import <Foundation/Foundation.h>

@interface Parser : NSXMLParser

@property (nonatomic,strong) Nsstring *rowElementName; // this is the element name that identifies a new row of data in the XML
@property (nonatomic,strong) NSArray *attributeNames;  // this is the array of attributes we might want to retrieve for that element name
@property (nonatomic,strong) NSArray *elementNames;    // this is the list of sub element names for which we're retrieving values

@property (nonatomic,strong) NSMutableArray *items;    // after parsing,this is the array of parsed items

@end

和

#import "Parser.h"

@interface Parser () <NSXMLParserDelegate>

@property (nonatomic,strong) NSMutableDictionary *item;     // while parsing,this is the item currently being parsed
@property (nonatomic,strong) NSMutableString *elementValue; // this is the element within that item being parsed

@end

@implementation Parser

- (id)initWithContentsOfURL:(NSURL *)url
{
    self = [super initWithContentsOfURL:url];

    if (self)
    {
        self.delegate = self;
    }

    return self;
}

- (id)initWithData:(NSData *)data
{
    self = [super initWithData:data];

    if (self)
    {
        self.delegate = self;
    }

    return self;
}

- (id)initWithStream:(NSInputStream *)stream
{
    self = [super initWithStream:stream];

    if (self)
    {
        self.delegate = self;
    }

    return self;
}

#pragma mark - NSXMLParserDelegate methods

- (void)parserDidStartDocument:(NSXMLParser *)parser
{
    self.items = [[NSMutableArray alloc] init];

    if (!self.rowElementName)
        NSLog(@"%s Warning: Failed to specify row identifier element name",__FUNCTION__);
}

- (void)parser:(NSXMLParser *)parser didStartElement:(Nsstring *)elementName namespaceURI:(Nsstring *)namespaceURI qualifiedname:(Nsstring *)qualifiedname attributes:(NSDictionary *)attributeDict
{
    if ([elementName isEqualToString:self.rowElementName])
    {
        self.item  = [[NSMutableDictionary alloc] init];

        for (Nsstring *attributeName in self.attributeNames)
        {
            id attributeValue = [attributeDict valueForKey:attributeName];
            if (attributeValue)
                [self.item setobject:attributeValue forKey:attributeName];
        }
    }
    else if ([self.elementNames containsObject:elementName])
    {
        self.elementValue = [[NSMutableString alloc] init];
    }
}

- (void)parser:(NSXMLParser *)parser foundCharacters:(Nsstring *)string
{
    if (self.elementValue)
    {
        [self.elementValue appendString:string];
    }
}

- (void)parser:(NSXMLParser *)parser didEndElement:(Nsstring *)elementName namespaceURI:(Nsstring *)namespaceURI qualifiedname:(Nsstring *)qName
{
    if ([elementName isEqualToString:self.rowElementName])
    {
        [self.items addobject:self.item];
        self.item = nil;
    }
    else if ([self.elementNames containsObject:elementName])
    {
        [self.item setValue:self.elementValue forKey:elementName];
        self.elementValue = nil;
    }
}

@end

由rob创建

我的XML文件：

<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://earth.google.com/kml/2.1">
<Document>
    <name>Filename.kml</name>
    <Style id="style1">
        <IconStyle>
            <Icon>
                <href>http://imageshack.us/a/img825/9079/pinvi.png</href>
            </Icon>
        </IconStyle>
    </Style>
    <Placemark>
        <name><![CDATA[Blankenese]]></name>
        <Snippet><![CDATA[Blankeneser Bahnhofstr. 9 22587 Hamburg +49-(0)40-866 06 50 +49-(0)40-86 60 65 60]]></Snippet>
        <description><![CDATA[<img src="http://www.engelvoelkers.com/shops/de-blankenese-res.jpg"><br/>Blankeneser Bahnhofstr. 9<br/>22587 Hamburg<br/>Telefon: +49-(0)40-866 06 50<br/>Fax: +49-(0)40-86 60 65 60<br/><a href="http://www.engelvoelkers.com/elbe">Website</a><br/>E-Mail: Blankenese@engelvoelkers.com]]></description>
        <styleUrl>#style1</styleUrl>
        <Point>
            <coordinates>9.811470,53.559441</coordinates>
        </Point>
    </Placemark>
</Document>
</kml>

我的目标是获取< description>中的所有信息.标记并显示它像Google-Maps一样

不完全但是相似.

但首先我需要知道如何与Parser一起工作

最好的问候CTS