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how to check condition for parsed elements in iphone
NSArray *feed3 = (NSArray *)[feed valueForKey:@"type"];
NSLog(@" %@",feed3);

if(type==staus){
//do some thing
}

* the top level object is an array
* every element in the array is an object/dictionary representing news
* this object/dictionary contains the following keys:
  * application (object/dictionary with two keys: id, name)
    * id (number)
    * name (string)
  * created_time (string)
  * from (object/dictionary with two keys: id, name)
    * id (number)
    * name (string)
  * icon (string)
  * id (string)
  * likes (object/dictionary with two keys: count, data)
    * count (number)
    * data (array)
      * every element in the array is an object/dictionary
      * this object/dictionary has two keys (id, name)
        * id (number)
        * name (string)
  * link (string)
  * name (string)
  * picture (string)
  * properties (array of objects/dictionaries)
  * type (string)
  * updated_time (string)

for (NSDictionary *news in feed3) {
    NSString *type = [news objectForKey:@"type"];

    if ([type isEqualToString:@"status"]) {
       …
    }
    else if ([type isEqualToString:@"photo"]) {
       …
    }
    else if ([type isEqualToString:@"link"]) {
       …
    }
    else if ([type isEqualToString:@"video"]) {
       …
    }
}

for(int index = 0 ; index < [feed3 count] ; index++)
{
    NSString* tempString = [feed3 objectAtIndex:index];

    if([tempString isEqualToString:@"status"])
    {
      //Get value for status from value array
    }
    else if([tempString isEqualToString:@"photo"])
    {
      //Get value for photo from value array
    }
    else if([tempString isEqualToString:@"link"])
    {
      //Get value for link from value array
    }
    else if([tempString isEqualToString:@"video"])
    {
      //Get value for video from value array
    }
}