Populating NSMutableArray from JSON Array

Aren't 'full size and thumbnail other Keys - they are, but nested.
The top level dictionary dicData contains only data for the key mediaList.
The associated data is:

(
    {
        fullsize = "/getMedia?file=/LivePic-19700101_014950899.jpg";
        thumbnail = "/getMedia?file=/thumbs/LivePic-19700101_014950899.jpg";
    },
            {
        fullsize = "/getMedia?file=/LivePic-19700101_014952658.jpg";
        thumbnail = "/getMedia?file=/thumbs/LivePic-19700101_014952658.jpg";
    },
            {
        fullsize = "/getMedia?file=/LivePic-19700101_014954431.jpg";
        thumbnail = "/getMedia?file=/thumbs/LivePic-19700101_014954431.jpg";
    },
    {
        fullsize = "/getMedia?file=/LiveVid-19700101_025111.mp4";
        thumbnail = "/getMedia?file=/thumbs/LiveVid-19700101_025111.jpg";
    }
)

which is an array of other nested dictionaries which in turn each contain two keys fullsize and thumbnail.

You therefore have to

• get the value for mediaList out of dicData
• treat that data as an array
• get each of the array entries
• treat them as dictionaries
• extract fullsize and thumbnail out of them

According to this JSON view you should parse the dictionary according to this..

In Your Scenario parse your JSON dictionary like this.

@property(strong,nonatomic) NSMutableArray *arrayOfThumbnail;

-(void)parseJSONDict:(NSDictionary *)dicData{

    //Alloc new memory to your mutable Array
    self.arrayOfThumbnail = [[NSMutableArray alloc]init]; 
    // Get the array from json who key is "mediaList"
    NSArray = [dicData objectForKey:@"mediaList"];

    for(int index=0;index < array.count ; index++){
        /*In Loop this Array has a dictionary at every index
        {} curly braces in JSON indicates a Dictionary*/

            NSDictionary *dict = [array objectAtIndex:index];

         // Now Fetch the Thumbnail String by providing the keyword to the dictionary at that index

            NSString *thumbnailString = [dict objectForKey:@"thumbnail"];

            [self.arrayOfThumbnail addObject:thumbnailString];
        }


    }