CODEWITHSUNDEEP
iosobjective-cjsonafnetworking
Illep
Illep

Reputation: 16841

Retrieve Data and save JSON records in an array

I need to display the address in a tableview. How can i break the JSON and save the addresses in an NSArray.

The JSON is :

{
    "Rank": 54,
    "data": [
        {
            "number": 1,
            "address": "x mandt "
        },
        {
            "number": 2,
            "address": "x mandt2 "
        }
    ]
}

COde is:

NSDictionary *dic = (NSDictionary *) responseObject;
NSDictionary * dat  = [dic objectForKey:@"data"];
NSArray *add =[dat objectForKey:@"address"];

The above code, doesn't retrieve and save all the address in the add array. How can i solve this?

Upvotes: 0

Views: 226

Answers (3)

Lucas Huang
Lucas Huang

Reputation: 4016

I think you better just use the literal syntax for retrieving this. The way you retrieve is just fine. You probably just add some introspection:

NSDictionary *responseDict = (NSDictionary *) responseObject;
if (responseDict.count) {
   NSArray *dataArray  = responseDict[@"data"];
   if (dataArray.count) {
      // do whatever you want
   }
}

You made a mistake when you retrieve the key word data, you will get an array after that but not a NSDictionary.

Upvotes: 1

Anbu.Karthik
Anbu.Karthik

Reputation: 82759

assume that this is your serialization data

NSDictionary *jsonArray = [NSJSONSerialization JSONObjectWithData:responseData options: NSJSONReadingMutableContainers error: &err];

 // here I start your work 

  NSArray *infoDict=[jsonArray objectForKey:@"data"];

  for (NSDictionary *tmp in infoDict)
     {
  NSMutableDictionary *temparr=[[NSMutableDictionary alloc]init];
         [temparr setValue:[tmp objectForKey:@"number"] forKey:@"number"];
         [temparr setValue:[tmp objectForKey:@"address"] forKey:@"address"];
         [_tdataSource addObject:temparr];
        }
  [yourtableviewNAme reloadData];

here I add the Tableview DataSource and delegate method

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:  (NSInteger)section
{
return [self.tdataSource count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
 static NSString *CellIdentifier = @"resultCell";
yourtableviewCellName *cell = [self.yourtableName dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[yourtableviewCellName alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] ;

    }
cell.textLabel.text=[[self.tdataSource objectAtIndex:indexPath.row]objectForKey:@"address"];

    return cell;
}

Upvotes: 1

Rashad
Rashad

Reputation: 11197

It should be:

NSArray *add =[dic objectForKey:@"data"];

Then if you want to have the address (I am considering address in 0'th index) then do this:

NSString *str = [[add objectAtIndex: 0] objectForKey:@"address"];

Edit:

Declare a class variable like:

@interface YourClassName (){
    NSMutableArray *dataSource;
}

Populate the dataSource like:

dataSource =[dic objectForKey:@"data"];

Then In your cellForRowAtIndexPath method do this:

            cell.textLabel.text = [[dataSource objectAtIndex:indexPath.row] objectForKey:@"address"];

I am considering you have single section in your tableview. Hope this helps.. :)

Upvotes: 0

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