Parse array of dictionaries of json in ios - ios

Question

i wanted to parse this json using this way
{"img":[{"id":"44","name":"\u0625\u0628\u0631\u0627\u0647\u064a\u0645 \u0627\u0644\u0639\u0631\u064a\u0641\u064a","type":"\u0627\u0646\u0627 \u0627\u062a\u0639\u0644\u0645","img":"27039_01355548242.png","school":"\u0625\u0628\u0631\u0627\u0647\u064a\u0645 \u0627\u0644\u0639\u0631\u064a\u0641\u064a","isshow":"1","tarteb":"0","date":"29\/1\/2015 01:15","mob":"16544541321"}]}
i wrote this code to parse it
NSArray * array = [[NSArray alloc]init];
array = [NSJSONSerialization JSONObjectWithData:responseObject options:kNilOptions error:nil];
NSDictionary * dic =array[indexPath.row]; //here is error
NSLog(#"%#",dic);
NSDictionary * info = dic[#"img"];
cell.name.text = info[#"name"];
cell.date.text =info[#"date"];
cell.schoolName.text= info[#"school"];
cell.mobile.text= info[#"mob"];
then i got this error
[__NSCFDictionary objectAtIndex :]: unrecognized selector sent to instance 0x7c986db0

Answer 1

NSDictionary *jsonDictionary = [[NSDictionary alloc] init];
jsonDictionary = [NSJSONSerialization JSONObjectWithData:responseObject options:kNilOptions error:nil];
NSArray *imageArray = jsonDictionary[#"img"];
NSDictionary *firstObject = imageArray[0];
cell.name.text = firstObject[#"name"];
cell.date.text =firstObject[#"date"];
cell.schoolName.text= firstObject[#"school"];
cell.mobile.text= firstObject[#"mob"];
and If there are multiple rows in json,Like:
{"img":[{"id":"44","name":"\u0625\u0628\u0631\u0627\u0647\u064a\u0645 \u0627\u0644\u0639\u0631\u064a\u0641\u064a","type":"\u0627\u0646\u0627 \u0627\u062a\u0639\u0644\u0645","img":"27039_01355548242.png","school":"\u0625\u0628\u0631\u0627\u0647\u064a\u0645 \u0627\u0644\u0639\u0631\u064a\u0641\u064a","isshow":"1","tarteb":"0","date":"29\/1\/2015 01:15","mob":"16544541321"},{"id":"45","name":"\u0625\u0628\u0631\u0627\u0647\u064a\u0645 \u0627\u0644\u0639\u0631\u064a\u0641\u064a","type":"\u0627\u0646\u0627 \u0627\u062a\u0639\u0644\u0645","img":"27039_01355548242.png","school":"\u0625\u0628\u0631\u0627\u0647\u064a\u0645 \u0627\u0644\u0639\u0631\u064a\u0641\u064a","isshow":"1","tarteb":"0","date":"29\/1\/2015 01:15","mob":"16544541321"},{"id":"46","name":"\u0625\u0628\u0631\u0627\u0647\u064a\u0645 \u0627\u0644\u0639\u0631\u064a\u0641\u064a","type":"\u0627\u0646\u0627 \u0627\u062a\u0639\u0644\u0645","img":"27039_01355548242.png","school":"\u0625\u0628\u0631\u0627\u0647\u064a\u0645 \u0627\u0644\u0639\u0631\u064a\u0641\u064a","isshow":"1","tarteb":"0","date":"29\/1\/2015 01:15","mob":"16544541321"}]}
then use this approach, if you need to show id:44 in zeroth row,id:45 in first row,id:46 in second row,...Of table view.
//In View Did Load
NSMutableArray *tableDataSource = [NSMutableArray new];
for (int i = 0; i < imageArray.count; i++)
{
NSDictionary *rowDataDictionary = imageArray[i];
[tableDataSource addObject:rowDataDictionary];
}
//In Cell For Row
NSDictionary *rowData = tableDataSource[indexPath.row];
cell.name.text = rowData[#"name"];
cell.date.text =rowData[#"date"];
cell.schoolName.text= rowData[#"school"];
cell.mobile.text= rowData[#"mob"];
JsonObjectWithData Returns Dictionary, and you should parse the data according to structure of JSON.
Hope this Helps,

Answer 2

As it shown above, JsonObjectWithData returns NSDictionary object, and you should use valueForKey method for taking value which you need.
NSDictionary *jsonDictionary = [[NSDictionary alloc] init];
jsonDictionary = [NSJSONSerialization JSONObjectWithData:responseObject options:kNilOptions error:nil];
NSMutableArray *valueForImgLabel = [jsonDictionary valueForKey:#"img"];
If you have too much value for one element in your JSON Response object, like this ;
{
Name = "Mr. Hope";
Gender = "Male";
Age = 29;
ImageList = (
{
Name = "Front side";
Image = "11111.JPG";
Order = 1;
Date = "07/07/2014";
},
{
Name = "Left Side";
Image = "22222.JPG";
Order = 1;
Date = "10/28/2015";
});
}
You can take all ImageList elements,convertibly, using valueForkey like this;
NSMutableArray *imageListInJSONFile = [jsonDictionary valueForKey:#"ImageList"][0];