How to parse XML array in iPhone?

Question

I am doing parsing, in my parsearray having only two data number of alerts and number of events these are fine. When we are finding the value like

NSString *alertcount = [[xmlparseArray objectAtIndex:indexPath.row ]objectForKey:@"alerts"];

and assigning these string value into label

mylabel.text = [NSString stringWithFormat:@"%@", alertcount];

same for Events.

then it becomes crash. It says:

index 0 beyond out of empty Array

And these parsing I am using in @RootViewController:

UITableViewController {


}

not using custom cell. In this rootviewcontroller class we are using 7 row(these are constant) and I want to assign at row number 5 the value of alert (i.e. mylabel.text = [NSString stringWithFormat:@"%@", alertcount]) at the right position of cell number 5 same is cell number 6.

In your case, you should not set the no.of rows as 7constant and if your array count was 2 but indexpath.row goes upto 7. this will lead to get crash as empty arrays have been found. — Splendid
– Splendid, Commented Jun 9, 2011 at 10:04
Also, you can accept answers to attract a wider range of people to help you — Joetjah
– Joetjah, Commented Jun 9, 2011 at 10:06
Yes @prasanna these seven rows is constant and we are assign like cell.textlabel.text = @"Alert"; i am doing deviding sections means e sections and return 1st section 3 row and section section return [xmlParseArray count]; and 3rd section return 2 row but at section at 2nd ([xmlParseArray count];) generate no row. — pinku
– pinku, Commented Jun 9, 2011 at 10:17
However you are using indexpath.row to retrive the array since you had only 2elements there. you should write by your own index then. — Splendid
– Splendid, Commented Jun 9, 2011 at 10:35

visakh7 · Accepted Answer · 2011-06-09 10:29:05Z

1

Your xmlparseArray might be empty. Check if you have any elements in the array. Pls show the code where you populate the array so that we can have a better idea of where you are going wrong

answered Jun 9, 2011 at 10:29

visakh7

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7 Comments

pinku Over a year ago

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict { if([elementName isEqualToString:@"Init"]){ } [xmlValue setString:@""]; } } - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { [xmlValue appendString:string]; }

pinku Over a year ago

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { if ([elementName isEqualToString:@"alerts"]) { [currentItem setValue:[NSString stringWithString:xmlValue] forKey:elementName]; }else if ([elementName isEqualToString:@"events"]) { [currentItem setValue:[NSString stringWithString:xmlValue] forKey:elementName]; }

pinku Over a year ago

else if ([elementName isEqualToString:@"Init"]) { [self.xmlParseArray addObject:[NSDictionary dictionaryWithDictionary:currentItem]]; } NSLog(@"xmlArray is : %@",xmlParseArray);

pinku Over a year ago

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return 7;

marzapower Over a year ago

You'd better put all this stuff in the question ... this way it's impossible to understand!

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