从resource中读取xml，并进行解析

static NSString *kIDStr     = @"id";

static NSString *kNameStr   = @"name";

static NSString *kImageStr  = @"image";

static NSString *kArtistStr = @"artist";

    NSString *strPathXml = [[NSBundle mainBundle] pathForResource:@"images" ofType:@"xml"];

    self.xmlData = [[NSData alloc] initWithContentsOfFile:strPathXml];

    self.parserXML = [[NSXMLParser alloc] initWithData:xmlData];

    self.elementsToParse = [NSArray arrayWithObjects:kIDStr, kNameStr, kImageStr, kArtistStr, nil];  

    [parserXML setDelegate:self];

    [parserXML parse];