IOS Как отобразить NSXMLparser с массивом NSMutable в tableview?

Question

У меня есть синтаксический анализатор NSXML, который хочет извлечь данные и поместить их в массив NSMutable. Он работает, когда я NSLog массива. Но когда я отображаю массив в виде таблицы, он терпит неудачу. Хорошо, если я могу уточнить, какая ошибка, которая у меня есть, потому что при запуске нет ошибки.

Это мой ViewDidLoad

 - (void)viewDidLoad { 
      [super viewDidLoad]; 
      // output = [[NSMutableArray alloc]initWithObjects:@"red",@"green", nil]; 
      NSLog(@"Response recieved"); 
      output= [[NSMutableArray alloc] init]; 
      feeds = [[NSMutableArray alloc] init]; 
     // NSString *severity = @"Informational"; 
      NSString *soapMessage = @"<?xml version=\"1.0\" encoding=\"utf-8\"?>" 
      "<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">" 
            "<soap:Body>" 
            " <IncidentGetList xmlns=\"https://www.monitoredsecurity.com/\">" 
            "<Severity></Severity>" 
            "<SourceOrganization></SourceOrganization>" 
            "<DestinationOrganization></DestinationOrganization>" 
            "<MaxIncidents></MaxIncidents>" 
            "<SourceIP></SourceIP>" 
            "<Category></Category>" 
            "<ExcludeCategory></ExcludeCategory>" 
            "<StartTimeStampGMT></StartTimeStampGMT>" 
            "<EndTimeStampGMT></EndTimeStampGMT>" 
            "<CustomerSeverity></CustomerSeverity>" 
            "</IncidentGetList>" 
            "</soap:Body>" 
            "</soap:Envelope>"; 


      NSURL *url = [NSURL URLWithString:@"https://api.monitoredsecurity.com/SWS/incidents.asmx"]; 
      NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url]; 
      NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMessage length]]; 

      [theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"]; 
      [theRequest addValue: @"https://www.monitoredsecurity.com/IncidentGetList" forHTTPHeaderField:@"SOAPAction"]; 
      [theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"]; 
      [theRequest setHTTPMethod:@"POST"]; 
      [theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]]; 







      NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; 
      [connection start]; 

      if(connection) 
      { 
       webResponseData = [NSMutableData data] ; 

      } 
      else 
      { 
       NSLog(@"Connection is NULL"); 
      } 
     } 

This is my NSXMLparser 

    //Implement the NSXmlParserDelegate methods 
    -(void) parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName 
     namespaceURI:(NSString *)namespaceURI qualifiedName: 
    (NSString *)qName attributes:(NSDictionary *)attributeDict 
    { 
     element = elementName; 

     if ([element isEqualToString:@"SecurityIncidentSummary"]) { 

      IncidentGetList = [[NSMutableDictionary alloc] init]; 

      Severity = [[NSMutableString alloc] init]; 

     } //NSLog(@"current element: ", elementName); 
    } 
    - (void)parserDidStartDocument:(NSXMLParser *)parser{ 
     NSLog(@"File found and parsing started"); 

    } 
    - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string 
    { 
     if ([element isEqualToString:@"Severity"]) { 
      [Severity appendString:string]; 
     } 
    } 
    - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName 
     namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName 
    { 
     if ([elementName isEqualToString:@"SecurityIncidentSummary"]) { 

      [IncidentGetList setObject:Severity forKey:@"Severity"]; 

      [feeds addObject:[IncidentGetList copy]]; 
     } 

    [self.datalist reloadData]; 
    } 

    - (void)parserDidEndDocument:(NSXMLParser *)parser { 

     NSLog(@"Final Feed : %@",feeds); 
     //[self.datalist reloadData]; 
    } 

Это мой TableView

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView 
{ 
    return 1; 
} 
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{ 

// Row display. Implementers should *always* try to reuse cells by setting each cell's reuseIdentifier and querying for available reusable cells with dequeueReusableCellWithIdentifier: 
// Cell gets various attributes set automatically based on table (separators) and data source (accessory views, editing controls) 
    return [feeds count]; 

} 
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 


static NSString *cellId = @"UITableViewCell"; 
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellId]; 
    if(cell == nil){ 
     cell= [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellId]; 


    } 

    cell.textLabel.text= [[feeds objectAtIndex:indexPath.row]objectForKey:@"Severity"]; 
    //cell.textLabel.text= output[indexPath.row]; 
    return cell; 





} 

Answer 1

Заканчивать этот XmlParser пример, который я сделал.

В вашем файле .h:

@interface RssViewController : UIViewController<NSXMLParserDelegate,UITableViewDataSource,UITableViewDelegate> 
{ 
    NSString *element; 
    NSXMLParser *xml; 
    NSMutableDictionary *item; 
    NSMutableString *title; 
    NSMutableString *link; 
    NSMutableString *description; 
    NSMutableArray *arrmute; 
} 
@property (weak, nonatomic) IBOutlet UITableView *tview; 

В .m файл:

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    // Do any additional setup after loading the view. 
    arrmute=[[NSMutableArray alloc]init]; 
    NSURL *url=[[NSURL alloc]initWithString:@"http://news.google.co.in/news?cf=all&hl=en&pz=1&ned=in&topic=tc&output=rss"]; 
    xml=[[NSXMLParser alloc]initWithContentsOfURL:url]; 
    xml.delegate=self; 
    xml.shouldResolveExternalEntities=YES; 
    [xml parse]; 
} 

NSXMLParser делегирует методы: -

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

    if ([element isEqualToString:@"item"]) 
    { 
     item=[[NSMutableDictionary alloc] init]; 
     title=[[NSMutableString alloc] init]; 
     link=[[NSMutableString alloc] init]; 
     description=[[NSMutableString alloc] init]; 
    } 
} 

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string 
{ 
    if ([element isEqualToString:@"title"]) 
    { 
     [title appendString:string]; 
    } 
    else if ([element isEqualToString:@"link"]) 
    { 
     [link appendString:string]; 
    } 
    else if ([element isEqualToString:@"description"]) 
    { 
     [description appendString:string]; 
    } 
} 
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName 
{ 
    if ([elementName isEqualToString:@"item"]) { 

    [item setObject:title forKey:@"title"]; 
    [item setObject:link forKey:@"link"]; 
    [item setObject:description forKey:@"description"]; 

    [arrmute addObject:[item copy]]; 
} 
} 
- (void)parserDidEndDocument:(NSXMLParser *)parser 
{  
    [self.tview reloadData]; 
} 

Tableview Методы: -

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{ 
    return arrmute.count; 
} 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *cellIdentifier = @"cell"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier]; 
    if (cell == nil) 
    { 
     cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier]; 
    } 
    cell.textLabel.text=[[arrmute objectAtIndex:indexPath.row] objectForKey:@"title"]; 
    cell.textLabel.numberOfLines = 0; 
    cell.textLabel.lineBreakMode = NSLineBreakByWordWrapping; 
    return cell; 
} 

Надежда это поможет вам ...