String converted To Dictionary - ios

I have a String format of JSON
{
abstract = "Today P.M of India Mr. Narender Modi visited for the eve of Agarasen \njayanti
\n";
created = 1444733102;
imgUrl = "";
nid = 12;
title = "Latest news";
}
I want to converted To NSDictionary
NSError *jsonError;
NSData *objectData = [[[tableDataArray objectAtIndex:indexPath.row]objectForKey:#"NewsValue"] dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:objectData options:NSJSONReadingMutableContainers error:&jsonError];
NSLog(#"%#",json);
They Give response is Null Please Help.

This is already in Json data of dictionary formate.
so you need not convert. Just retrieve data.
NSString * abstract = [Dic valueForKey:#"abstract"];

Please used below code
NSData *objectData = [[[tableDataArray objectAtIndex:indexPath.row]objectForKey:#"NewsValue"]
NSString *strResponce = [[NSString alloc] objectData encoding:NSUTF8StringEncoding];
NSMutableDictionary *dictResponse = [NSJSONSerialization JSONObjectWithData:[strResponce dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableLeaves error:&error];
if([dictResponse isKindOfClass:[NSMutableDictionary class]]) {
NSString * abstractStr = [dictResponse valueForKey:#"abstract"];
}

Related

iOS fetching json object from json string

#"SaveRegistrationIDResult" : #"{\"Table\":[{\"Return_Code\":1,\"Return_Message\":\"ALREADY REGISTERED\"}]}"
I'm finding it impossible to fetch data from this json string.
I'm getting the table Table Object as a NSDictionary using this code.
NSMutableDictionary *jsonData = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSData *processedJsondata = [jsonData objectForKey:#"SaveRegistrationIDResult"];
but I getting errors for everything i try ahead.
I'd like to fetch data from within the Table array ('Return_Code') and print it in a Log.
You are getting json string so you can parse it like,
id jsonString = #"{\"Table\":[{\"Return_Code\":1,\"Return_Message\":\"ALREADY REGISTERED\"}]}"; // or [yourDictionary objectForKey : #"SaveRegistrationIDResult"];
NSData *data = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
id jsonObject = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
Now you can get value of any key from above object like,
NSArray *arr = [jsonObject objectForKey : #"Table"];
NSLog(#"your result : %#", arr);
Lion's comment worked.
This is how I fetched the value. Any optimizations welcome.
NSMutableDictionary *jsonData = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSString *processedJsondata = [jsonData objectForKey:#"SaveRegistrationIDResult"];
NSData *tableData = [processedJsondata dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *tableJsonObject = [NSJSONSerialization JSONObjectWithData:tableData options:0 error:nil];
NSArray *tableArray = [tableJsonObject objectForKey:#"Table"];
NSDictionary *tableObject = [tableArray objectAtIndex:0];
NSString *reposnseCode = [tableObject objectForKey:#"Return_Message"];
NSLog(#"%#",reposnseCode);

How to convert data string to json object and string in iOS?

How to convert string to JSON object or JSON array in iOS?
my JSON string Like That.
{"Data": [{"ID":"1","Name":"Raj"},{"ID":"2","Name":"Rajneesh"}]}
I want to get ID or Name from this string please help me if anyone now this.
Thank You.
I try below code but print null
NSString *JsonString=#"{"Data": [{"ID":"1","Name":"Raj"},{"ID":"2","Name":"Rajneesh"}]}";
NSData *objectData = [JsonString dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:objectData options:0 error:&error];
NSArray* array = [json objectForKey:#"Data"];
NSLog(#"Print Array %#",array);
Use this
NSString *str=#"{\"Data\": [{\"ID\":\"1\",\"Name\":\"Raj\"},{\"ID\":\"2\",\"Name\":\"Rajneesh\"}]}";
NSMutableDictionary *dict=[NSJSONSerialization JSONObjectWithData:[str dataUsingEncoding:NSUTF8StringEncoding] options:kNilOptions error:nil];
NSMutableArray *dataArr=[dict valueForKey:#"Data"];
for (NSDictionary *userData in dataArr) {
NSLog(#"Id:%# Name:%#",[userData valueForKey:#"ID"],[userData valueForKey:#"Name"]);
}
Always Remember that when there are { } curly brackets, it means it is Dictionary and when [ ] this, means Array
NSURL *url=[NSURL URLWithString:#"Your JSON URL"];
NSData *data = [[NSData alloc] initWithContentsOfURL:url];
NSMutableDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];
NSArray *array = json[#"Data"];
for(NSMutableDictionary *dic in array)
{
NSLog(#"%#",dic[#"ID"]); // give 1 & 2
NSLog(#"%#",dic[#"Name"]); // Raj and Rajneesh
}
This is not the correct JSON string which can be parsed by Objective c, get string from encoder and you will get a valid string, other then that for JSON to Dictionary conversion is simple in iOS as its natively supported.
NSData *data = [strJSON dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *jsonResponse = [NSJSONSerialization JSONObjectWithData:data
options:kNilOptions
error:&error];

Getting error when parsing JSON iOS

After get string from web service, i need to parse them. But something is going wrong.
Here is my code;
NSString *responseString = [request responseString];
NSLog(#"response String = %#",responseString);
NSData *tempData = [responseString dataUsingEncoding:NSUTF8StringEncoding];
NSError *error = nil;
NSString *innerJson = [NSJSONSerialization JSONObjectWithData:tempData
options:NSJSONReadingAllowFragments error:&error];
NSLog(#"innerJson = %#",innerJson);
NSArray *entries = [NSJSONSerialization JSONObjectWithData:[innerJson dataUsingEncoding:NSUTF8StringEncoding]
options:0 error:&error];
NSLog(#"entries = %#",entries);
for (NSDictionary *entry in entries) {
NSLog(#"entry = %#",entry);
NSString *message = [entry objectForKey:#"message"];
NSLog(#"message = %#",message );
NSString* result = [entry objectForKey:#"result"];
NSLog(#"result = %#", result);
}
Here is my output;
innerJson = {"result": false,"message":"message!"}//I need parse this string.
entries = {
message = "message!";
result = 0;
}
entry = message
I am taking error in for loop.
What am i doing wrong?
Thanks for interest and advice.
The problem is that in the line
NSArray *entries = [NSJSONSerialization
you assign the result to NSArray, and your JSON object is a dictionary, so you should assign to NSDictionary. Then the for loop is unnecessary - you can do:
NSDictionary *entries = [NSJSONSerialization JSONObjectWithData:[innerJson dataUsingEncoding:NSUTF8StringEncoding] options:0 error:&error];
NSLog(#"entries = %#",entries);
NSString *message = [entries objectForKey:#"message"];
NSLog(#"message = %#",message );
NSString* result = [entries objectForKey:#"result"];
NSLog(#"result = %#", result);
Read more details in NSJSONSerialization documentation.
I'm not sure - but I guess this code should work for you:
NSString *responseString = [request responseString];
NSLog(#"response String = %#",responseString);
NSData *tempData = [responseString dataUsingEncoding:NSUTF8StringEncoding];
NSError *error = nil;
/* assuming it is a dictionary */
NSDictionary *inner = [NSJSONSerialization JSONObjectWithData:tempData
options:NSJSONReadingAllowFragments error:&error];
NSLog(#"inner = %#",inner);
for(id key in inner) {
id value = [inner objectForKey:key];
NSLog(#"key=%#, value=%#", key, value);
}

#"{\"details\": \"A friend request is already pending.\"}" how to retrieve the value from this json string

#"{\"details\": \"A friend request is already pending.\"}".. This is a json string coming from the server. i want to retrieve the object in a one string i.e is A friend request is already pending string is to be in one string. please tell me how to retrieve this.
i tried like this
NSString *str = #"{\"details\": \"A friend request is already pending.\"}";
NSLog(#"%#",str);
NSString *resultStr1 = [str stringByReplacingOccurrencesOfString:#"{" withString:#""];
NSString *resultStr2 = [resultStr1 stringByReplacingOccurrencesOfString:#"}" withString:#""];
//NSLog(#"%#",resultStr2);
//NSString *encodestr = [str stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
// NSLog(#"%#",encodestr);
NSData *data = [str dataUsingEncoding:NSUTF8StringEncoding];
data = [data subdataWithRange:NSMakeRange(0, [data length] - 1)];
NSLog(#"%#",data);
NSError *error =Nil;
NSArray *JSON = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSLog(#"%#",JSON);
NSLog(#"%#",[JSON valueForKey:#"details"]);
Try this. COnvert your string into a dictionary and access it by keys. This will be helpful when you come across large group of data.
NSString *str = #"{\"details\": \"A friend request is already pending.\"}";
NSData *data = [str dataUsingEncoding:NSUTF8StringEncoding];
NSError* error;
NSDictionary* dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:&error];
NSLog(#"%#", [dic objectForKey:#"details"]);
Try this may be it will help you
NSDictionary *JSON =
[NSJSONSerialization JSONObjectWithData: str dataUsingEncoding:NSUTF8StringEncoding]
options: NSJSONReadingMutableContainers
error: &e];
NSLog(#"%#",[JSON valueForKey:#"details"]);

how to delete the Superfluous Escape-character in a NSString object

I'm a newbie about development of iOS.
And when I deal a json with NSJSONSerialization , I find something really a problem to me.
NSLog(#"response: %#", responseString);
NSData *jsonData = [responseString dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:nil];
NSLog(#"dict: %#", dict);
and the output is:
2013-03-18 20:13:56.228 XXXX[3550:5003] response: {"status":"success","data":"{\"title\":\"\",\"sessionName\":\"sid\",\"sessionID\":\"9217e5df3db6b4b4aa3eed800890069f\",\"rand\":5360}","md5":"292ee1e78628fc6360c647e938c4f1ea"}
2013-03-18 20:13:56.229 XXXX[3550:5003] dict: {
data = "{\"title\":\"\",\"sessionName\":\"sid\",\"sessionID\":\"9217e5df3db6b4b4aa3eed800890069f\",\"rand\":5360}";
md5 = 292ee1e78628fc6360c647e938c4f1ea;
status = success;
with the "\" the data section cannot be a NSDictionary object
So what should I do to make it right?
Sorry for my poor English.
For whatever reason, the value of "data" is not a JSON dictionary, but a string containing JSON data. You can fix this by applying JSONObjectWithData to this string again and replacing the value in the dictionary:
NSData *jsonData = [responseString dataUsingEncoding:NSUTF8StringEncoding];
NSMutableDictionary *dict = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:nil];
NSData *nestedJsonData = [[dict objectForKey:#"data"] dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *nestedDict = [NSJSONSerialization JSONObjectWithData:nestedJsonData options:NSJSONReadingMutableContainers error:nil];
[dict setObject:nestedDict forKey:#"data"];
NSLog(#"dict: %#", dict);
Output:
dict: {
data = {
rand = 5360;
sessionID = 9217e5df3db6b4b4aa3eed800890069f;
sessionName = sid;
title = "";
};
md5 = 292ee1e78628fc6360c647e938c4f1ea;
status = success;
}

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