ios - iOS Web 服务结果到数组

Question

我使用网络服务来获取信息。当我获取字符串结果时，我无法将其写入数组。

在 foundCharacters 中，当我编写NSLog(@"%@",string);它时，它会正确写入所有值，但是当我编写时：

[myArray addObject:string];
NSLog(@"%@",myArray);

我看到很多空值。如何获取这些值并将它们写入数组:(

-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{

    [datawebservice setLength:0];
}

-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{

    [datawebservice appendData:data];
}

-(void)connectionDidFinishLoading:(NSURLConnection *)connection{

    xmlparserr = [[NSXMLParser alloc] initWithData:datawebservice];
    [xmlparserr setDelegate:self];
    [xmlparserr parse];



}

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

    elementyedek = elementName;

}

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

}

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


    if ([elementyedek isEqualToString:@"StokAdi"]) {
       [myArray addObject:string];

        NSLog(@"%@",myArray);       

    }


}

-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{

    NSLog(@"ERROR with theConnection");
}