NSDictionary shows nil in IOS/ Objective c - ios

Question

I am receiving an arabic data through web service. I get data as a JSON object, but when I pass the value to an NSDictionary it shows nil and am not able to get key/pair value.i receive value till data,but i cant pass that to NSDictionary.
Here is the code:
(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
NSDictionary* json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];
for (NSString *key in [json allKeys])
{
NSArray *feed = [json objectForKey:key];
for(int i=0; i<feed.count;i++)
{
for (NSString *key1 in [[feed objectAtIndex:i] allKeys])
{
if([key1 isEqualToString:#"newsTitle"])
{
NSString *value = [[feed objectAtIndex:i] objectForKey:key1];
[NewsTitleArray addObject:value];
}
else if([key1 isEqualToString:#"newsDescription"])
{
NSString *value = [[feed objectAtIndex:i] objectForKey:key1];
[NewsDescriptionArray addObject:value];
}}}}

Answer 1

You need to use proper encoding for your data, normally arabic content require ISO-Latin encoding. Though your code is wrong, you need to use correct NSURLConnection Delegate function to get complete data, you are trying to parse the incomplete data
See the changes below
Declare a variable
NSMutableData *receivedData;
Handle the delegate calls
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
//This delegate function gets called multiple times while fetching the data..
if(!receivedData){
receivedData=[[NSMutableData alloc] initWithData:data];
}else{
[receivedData appendData:data];
}
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection{
//When the connection completes the processing, do you parsing
if(receivedData.length>0){
NSString *string = [[NSString alloc] initWithData:receivedData encoding:NSISOLatin1StringEncoding];
NSData *utf8Data = [string dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary* json = [NSJSONSerialization JSONObjectWithData:utf8Data options:kNilOptions error:nil];
for (NSString *key in [json allKeys])
{
NSArray *feed = [json objectForKey:key];
for(int i=0; i<feed.count;i++)
{
for (NSString *key1 in [[feed objectAtIndex:i] allKeys])
{
if([key1 isEqualToString:#"newsTitle"])
{
NSString *value = [[feed objectAtIndex:i] objectForKey:key1];
[NewsTitleArray addObject:value];
}
else if([key1 isEqualToString:#"newsDescription"])
{
NSString *value = [[feed objectAtIndex:i] objectForKey:key1];
[NewsDescriptionArray addObject:value];
}
}
}
}
}
Note: The code above is not tested, might not work at first go, but it should be this way.
I hope it helps.
Cheers.