Question

我有一个NSXML Parser实例解析一些xml并将其存储在一个对象数组中。 XML有一些图像URL和标题，我试图添加到字典，然后将字典添加到数据对象中的数组。字典正确设置但不会添加到数组中。下面是xml和代码：

XML：

http://www.flashalert.net/rss.html?id=3753

代码：

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {

    NSString *string1 = [string stringByReplacingOccurrencesOfString:@"amp;" withString:@""];
    NSString *string2 = [string1 stringByReplacingOccurrencesOfString:@"&quot;" withString:@"\""];
    currentNodeContent = (NSMutableString *) [string2 stringByStrippingHTML];
}

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {

    if ([elementname isEqualToString:@"item"]) {

        isStatus = YES;
        currentPressRelease = [FCPressRelease alloc];
    }

    if ([elementname isEqualToString:@"media:content"]) {

        isMedia = YES;

        media = [[NSMutableDictionary alloc] init];
        [media setValue:[attributeDict valueForKey:@"url"] forKey:@"url"];
    }
}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {

    if (isStatus)
    {
        if ([elementname isEqualToString:@"pubDate"])
        {
            currentPressRelease.pubDate = currentNodeContent;
        }
        if ([elementname isEqualToString:@"title"])
        {
            currentPressRelease.title = currentNodeContent;
        }
        if ([elementname isEqualToString:@"description"])
        {
            currentPressRelease.summary = currentNodeContent;
        }
        if ([elementname isEqualToString:@"guid"])
        {
            currentPressRelease.guid = currentNodeContent;
        }
    }
    if (isMedia) {

        if ([elementname isEqualToString:@"media:title"])
        {
            [media setValue:currentNodeContent forKey:@"title"];
        }
    }
    if ([elementname isEqualToString:@"media:content"]) {

        [currentPressRelease.images addObject:media];

        media = nil;
    }
    if ([elementname isEqualToString:@"item"]) {

        if (currentPressRelease != nil) {

            [self.posts addObject:currentPressRelease];

            currentPressRelease = nil;
            currentNodeContent = nil;
        }
        else {

            currentPressRelease = nil;
            currentNodeContent = nil;
        }
    }
}

FCPressRelease.h

@interface FCPressRelease : NSObject

@property (strong, nonatomic) NSString *pubDate;
@property (strong, nonatomic) NSString *title;
@property (strong, nonatomic) NSString *summary;
@property (strong, nonatomic) NSString *guid;
@property (strong, nonatomic) NSMutableArray *images;

@end

FCPressRelease.m

@implementation FCPressRelease

@synthesize pubDate = _pubDate;
@synthesize title = _title;
@synthesize summary = _summary;
@synthesize guid = _guid;
@synthesize images = _images;

@end

Answer 1

您应该使用init方法来完成FCPressRelease

的初始化过程

currentPressRelease = [FCPressRelease alloc] init];

iOS NSXML字典不添加到数组

1 个答案: