json parsing in iOS with table view

USE CASE - 1
        |
Main
        |
UITable View Controller
        |
UITable View
        |
UITable View Cell
       |
Components

1) Create UITable View
2) Add below Code in "MyTableViewController.h"

#import <UIKit/UIKit.h>

@interface MyTableViewController : UITableViewController

{

    NSMutableArray *arr1 ;

    NSMutableArray *arr2;

}

@end

3) Add below Code in "MyTableViewController.m"

- (void)viewDidLoad

{

   

    arr1=[[NSMutableArray alloc]init];

    

    arr2=[[NSMutableArray alloc]init];

    NSString *strUrl = @"http://www.jsonurl";

    NSURLRequest * urlRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:strUrl]];

    

    [NSURLConnection sendAsynchronousRequest:urlRequest queue:[NSOperationQueue currentQueue] completionHandler:^(NSURLResponse*response, NSData *data, NSError *error)

     {

         if(data != nil)

         {

             NSMutableArray *dictionaryObj = [NSJSONSerializationJSONObjectWithData:data options:NSJSONReadingMutableContainerserror:&error];

             

             

             //            NSArray *allValues = [dictsongs allValues];

             //             NSMutableArray *arrKeys = [[NSMutableArray alloc]initWithObjects:@"image",@"title",@"song_url", nil];

             

             for (int i = 0; i<dictionaryObj.count; i++) {

                 

                 

                 [arr1 addObject:[[dictionaryObjobjectAtIndex:i]objectForKey:@"Title"]];

                 [arr2 addObject:[[dictionaryObjobjectAtIndex:i]objectForKey:@"MedImageUrl"]];

                 

                 

                 NSLog(@"array at %@",arr1[i]);

                 

             }

             NSLog(@"images list %@",arr1);

             [self.tableView reloadData];

         }

         

         else

         {

             UIAlertView *alert = [[UIAlertViewalloc]initWithTitle:@"" message:@"Server Down.Try again later"delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];

             [alert show];

             

             

         }

     }];

    

    

    [super viewDidLoad];

    // Uncomment the following line to preserve selection between presentations.

    // self.clearsSelectionOnViewWillAppear = NO;

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.

    // self.navigationItem.rightBarButtonItem = self.editButtonItem;

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView

{

#warning Potentially incomplete method implementation.

    // Return the number of sections.

    return 1;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

#warning Incomplete method implementation.

    // Return the number of rows in the section.

    return arr1.count;

}

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

{

    static NSString *CellIdentifier = @"MyCell";

    UITableViewCell *cell = [tableViewdequeueReusableCellWithIdentifier:CellIdentifierforIndexPath:indexPath];

    

    cell.textLabel.text=[arr1 objectAtIndex:indexPath.row];

    

    NSData  *imgData=[NSData dataWithContentsOfURL:[NSURLURLWithString:[arr2 objectAtIndex:indexPath.row]]];

    cell.imageView.image=[UIImage imageWithData:imgData];

    

    return cell;

}