JSON Data Not Parsed in iOS

Question

i am Newbie in iOS Development. I want to Parse an JSON Data From My WebServices for that I have written folliwing code

- (void)viewDidLoad
{
 NSURL * url=[NSURL URLWithString:[NSString stringWithFormat:@"http://www.janvajevu.com/webservice/latest_post.php?page=%d",pageNum]];
dispatch_async(kBgQueue, ^{
    data = [NSData dataWithContentsOfURL: url];
    [self performSelectorOnMainThread:@selector(fetchedData:) withObject:data waitUntilDone:YES];
});

}
-(void)fetchedData:(NSData *)responsedata
{
if (responsedata.length > 0)
{
    NSError* error;
    self.json= [NSJSONSerialization JSONObjectWithData:responsedata options:kNilOptions error:&error];
    if ([[_json objectForKey:@"data"] isKindOfClass:[NSArray class]])
    {
        NSArray *arr = (NSArray *)[_json objectForKey:@"data"];
        [self.navuArray addObjectsFromArray:arr];
        [self.navuTable reloadData];
         NSLog(@"JSON Data %@",self.navuArray);
    }
    self.navuTable.hidden=FALSE;
}

Here Self.json is A JSON Dictionary and self.navuArray is my NSMutableArray when i print my Array then It returns Num. Please Give me Solution for it.

Answer 1

Try this code

id jsonObject = [NSJSONSerialization JSONObjectWithData:webData options:kNilOptions error:&error];
  table = [[UITableView alloc]init];

    [dict objectForKey:@"data"];
    NSArray *array = (NSArray *)jsonObject;
    if ([[dict objectForKey:@"data"] isKindOfClass:[NSArray class]])
    {
     for(int i=0;i<[array count];i++)
     {

        dict1 = [array objectAtIndex:i];
        [postIdArr addObject:[dict objectForKey:@"post_id]];
        [postTitleArr addObject:[dict objectForKey:@"post_title"]];
        [postTitleSlungArr addObject:[dict objectForKey:@"post_title_slug"]];
        NSString *dateId = [dict objectForKey:@"post_date"];
        NSArray *dateArray = [dateId componentsSeparatedByString:@" "];
        [dateArrs addObject:[dateArray objectAtIndex:0]];
        [timeArrs addObject:[dateArray objectAtIndex:1]];
        //[dateIdArr addObject:[dict objectForKey:@"date"]];
        [postViewsArr addObject:[dict objectForKey:@"post_views"]];
        [imageArr addObject:[dict objectForKey:@"feature_image"]];
        [shortArr addObject:[dict objectForKey:@"short_description"]];
        [nameArr addObject:[dict objectForKey:@"author_name"]];


    }

Answer 2

Its your navuArray that is not initialized before you are adding objects to it from array. Initialize it before you call for your data and then add objects to it.