Here is my dictionary result.
"continent_code" = EU;
"country_code" = gb;
"country_id" = 169;
"country_name" = "United Kingdom";
NSString *responseString = [[NSString alloc] initWithData:responseData
encoding:NSUTF8StringEncoding];
NSDictionary *LoginResult = (NSDictionary*)[responseString JSONValue];
I want to retrieve only country name to NSArray from dictionary.
Try This ::
NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData:webData options:NSJSONReadingMutableContainers error:&error];
NSLog(#" Value :: %#", [[jsonArray JSONRepresentation] JSONValue]);
for (NSDictionary *item in jsonArray) {
NSLog(#" Item :::::> %#", [item objectForKey:#"country_name"]);
}
Hope, It'll help you.
NSMutableArray *wholeJsonArray = [LoginResult objectForKey:#"RootName"];
NSMutableArray *loginArray = [[NSMutableArray alloc]init];
for(int i = 0 ; i<[loginArray count];i++)
{
NSString *countryName=[[loginArray objectAtIndex:i]objectForKey:#"country_name"];
[loginArray addObject:countryName];
}
Good luck !!
The Correct Method to fill countryArray :
NSError* error;
NSDictionary* json = [NSJSONSerialization JSONObjectWithData:yourResponseData options:kNilOptions error:&error];
NSArray* getMAS_CR = [(NSDictionary*)json objectForKey:#"yourKeyRootResult"];
NSMutableArray *countryArray = [[NSMutableArray alloc]init];
for (NSDictionary *rr in getMAS_CR)
{
NSString *cName = [NSString stringWithFormat:#"%#",[rr objectForKey:#"country_name"]];
[countryArray addObject:cName];
}
NSLog(#"countryArray :: %#",countryArray);
GoodLuck.
Related
I have an array and I want to split that array into 3 parts or 3 arrays.
1st array contains -> AppName
2nd array contains -> Description
3rd array contains -> Icon
Here is the json array I want to split,
Deviceinfo = (
{
Appname = App;
Description = "This is test app";
Icon = "57.png";
}
);
}
Here is my code for this,
NSMutableArray *firstArray = [NSMutableArray array];
NSMutableArray *secondArray = [NSMutableArray array];
NSMutableArray *thirdArray = [NSMutableArray array];
for (int i = 0; i < [json count]; i++) {
NSArray *tempArray = [[json objectAtIndex:i]componentsSeparatedByString:#""];
[firstArray addObject:[tempArray objectAtIndex:0]];
[secondArray addObject:[tempArray objectAtIndex:1]];
if ([tempArray count] == 3)
{
[thirdArray addObject:[tempArray objectAtIndex:2]];
}
}
NSLog(#"yourArray: %#\nfirst: %#\nsecond: %#\nthird: %#", json, firstArray, secondArray, thirdArray);
I observe a crash in the code at this line,
NSArray *tempArray = [[json objectAtIndex:i]componentsSeparatedByString:#""];
I don't understand what is going wrong here. Any pointers to solve this issue?
I think you can using below code i hope this help's you :-
NSMutableArray *firstArray = [NSMutableArray array];
NSMutableArray *secondArray = [NSMutableArray array];
NSMutableArray *thirdArray = [NSMutableArray array];
NSDictionary *jsonArray = [NSJSONSerialization JSONObjectWithData: jsonResponse options: NSJSONReadingMutableContainers error: &e];
//here is first i load with Dicutionary bcz if into your Json you have may be multiple Dictuionary so you then you can load purticular dictionary as bellow line
EDIT
NSArray * responseArr = jsonArray[#"Deviceinfo"];
firstArray = [responseArr valueForKey:#"Appname"];
secondArray = [responseArr valueForKey:#"Description"];
thirdArray = [responseArr valueForKey:#"Icon"];
if you have multiple Deviceinfo dictionary in to your Json then you could use For loop
// NSArray * responseArr = jsonArray[#"Deviceinfo"];
// for (NSDictionary *dict in responseArr) {
// [firstArray addObject:[dict valueForKey:#"Appname"];
// [secondArray addObject:[dict valueForKey:#"Description"];
// [thirdArray addObject:[dict valueForKey:#"Icon"];
// }
NSMutableArray *firstArray = [[NSMutableArray alloc]init];
NSMutableArray *secondArray = [[NSMutableArray alloc]init];
NSMutableArray *thirdArray = [[NSMutableArray alloc]init];
NSDictionary *list =[NSJSONSerialization JSONObjectWithData:data
options:kNilOptions error:&error];
NSArray * tempArray = jsonArray[#"Deviceinfo"];
for (NSDictionary *list in tempArray)
{
[firstArray addObject:[list objectForKey:#"Appname"];
[secondArray addObject:[list objectForKey:#"Description"];
[thirdArray addObject:[list objectForKey:#"Icon"];
}
Then try
NSLog(#"yourArray: %#\nfirst: %#\nsecond: %#\nthird: %#", tempArray, firstArray, secondArray, thirdArray);
NSData *jsonData = [NSData dataWithContentsOfURL:[NSURL URLWithString:#"http://url.to.your.json"]];
NSArray *jsonObjects = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:nil];
NSMutableArray *appNameArray = [NSMutableArray array];
NSMutableArray *discriptionArray = [NSMutableArray array];
NSMutableArray *iconArray = [NSMutableArray array];
for(NSDictionary *dictionary in jsonObjects)
{
[appNameArray adddObject:[dictionary valueForKey:#"Appname"];
[appNameArray adddObject:[dictionary valueForKey:#"Description"];
[appNameArray adddObject:[dictionary valueForKey:#"Icon"];
}
I want to parse many JSON strings. Here is the code:
while(stations.count > 0) {
NSString*string = [[[NSString alloc] initWithString:[stations objectAtIndex:0]] retain];
NSMutableDictionary*dic = [[[NSMutableDictionary alloc]init]retain];
NSData*data = [[[NSData alloc] initWithData:[string dataUsingEncoding:NSUTF8StringEncoding]]retain];
NSMutableDictionary* pars = [[NSMutableDictionary alloc]initWithDictionary:[NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil]];
[dic setObject:[NSString stringWithString:[pars objectForKey:#"nm"]] forKey:#"nm"];
[dic setObject:[NSString stringWithString:[pars objectForKey:#"btr"]] forKey:#"btr"];
[dic setObject:[NSString stringWithString:[pars objectForKey:#"id"]] forKey:#"id"];
[dic setObject:[NSString stringWithString:[pars objectForKey:#"cntr"]] forKey:#"cntr"];
[dic setObject:[NSString stringWithString:[pars objectForKey:#"gnr"]] forKey:#"gnr"];
[pars release];
#try {
[parsedData addObject:[NSDictionary dictionaryWithDictionary:dic]];
}
#catch (NSException* exc) {
NSLog(#"%#, %#", exc.description, exc.reason);
}
[dic release];
[data release];
[string release];
[stations removeObjectAtIndex:0];
if (i%1000==0) {
NSLog(#"nnnn %i %i", parsedData.count, stations.count);
}
i++;
float k = count;
k = (i + 1)/k;
[self performSelectorOnMainThread:#selector(increaseProgress:) withObject:[NSNumber numberWithFloat:k] waitUntilDone:YES];
}
On adding (usually but not every time) string to array I get error:
exc_breakpoint (code=exc_i386_bpt
and:
GuardMalloc[Radiocent new try-1820]: Failed to VM allocate 68752 bytes
GuardMalloc[Radiocent new try-1820]: Explicitly trapping into debugger!!!
Stations array is pretty big... about 60000 strings.
First of all when you alloc you don't need to retain as retain count is already +1.
NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
Not
NSMutableDictionary*dic = [[[NSMutableDictionary alloc]init]retain];
Below line already returs mutable dictionary so you don't have to create a new dictionary out of that and if you want to change then just call a - mutableCopy on it.
NSMutableDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
or to create a copy:
NSMutableDictionary *dictionary = [[NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil] mutableCopy];
If stations is JSON string then for all stations do this:
NSData *data = [JSONString dataUsingEncoding:NSUTF8StringEncoding];
NSArray *stationsArray = [[NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil] mutableCopy];
for (NSDictionary *stationDic in stationArray)
{
// This will iterate over each station dictionary in the station array
// Do your stuff here ...
}
For your example: (I have added \" to escape the double quotes, you don't have to)
Placed square brackets around your example this make it an array and you can iterate through each using the given code below. (Add only if they are not there)
NSString *example = #"[{\"id\":\"02AB99\",\"btr\":\"24\",\"cntr\":\"461E\",\"gnr\":\"8A51\",\"nm\":\"88.3 Fm Radio Q Jogjakarta\"}, {\"id\":\"026058\",\"btr\":\"160\",\"cntr\":\"461E\",\"gnr\":\"8A7B\",\"nm\":\"88.3 The Dog\"}, {\"id\":\"0300D2\",\"btr\":\"55 64\",\"cntr\":\"461C\",\"gnr\":\"8A75\",\"nm\":\"88.3 The Wind\"}, {\"id\":\"0159E6\",\"btr\":\"128\",\"cntr\":\"4610\",\"gnr\":\"8A6C\",\"nm\":\"88.30 Z Fm Radio Word Online\"}]";
NSError *error = nil;
NSArray *stationArray = [NSJSONSerialization JSONObjectWithData:[example dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingAllowFragments error:&error];
if (!error)
{
for (NSDictionary *stationDic in stationArray)
{
NSLog(#"\nName: %# \nDump: \n%#", [stationDic valueForKey:#"nm"], stationDic);
}
}
NSDictionary* json = [NSJSONSerialization
JSONObjectWithData:responseData
options:kNilOptions
error:&error];
NSArray* users = [json objectForKey:#"Users"];
NSEnumerator* enumerator = [users objectEnumerator];
id element;
NSMutableArray *results;
Result *fetchedResults;
while(element = [enumerator nextObject]) {
// fetchedResults = [[Result alloc] init]; // i have tried commenting/uncommenting
fetchedResults.name = (NSString *)[[element objectForKey:#"User"] objectForKey:#"name"];
fetchedResults.email = (NSString *)[[element objectForKey:#"User"] objectForKey:#"name"];
NSLog(#"%#", fetchedResults.name);
[results addObject:fetchedResults];
NSLog(#"%#", (NSString *)[[element objectForKey:#"User"] objectForKey:#"name"]); // this returns valid dump
}
NSLog(#"%d", [results count]); // returns 0
I don't understand wht's wrong here. I have searched through numerous tutorials and resources don't seem to get what's wrong here.
EDIT:
NSLog(#"%#", fetchedResults.name); // dumps null
You forgot to allocate your results array NSMutableArray *results = [[NSMutableArray alloc] init] this should help.
NSDictionary* json = [NSJSONSerialization
JSONObjectWithData:responseData
options:kNilOptions
error:&error];
NSArray* users = [json objectForKey:#"Users"];
NSMutableArray *results = [[NSMutableArray alloc] init];
for (id object in users) {
Result *fetchedResults = [[Result alloc] init];
fetchedResults.name = (NSString *)[[element objectForKey:#"User"] objectForKey:#"name"];
fetchedResults.email = (NSString *)[[element objectForKey:#"User"] objectForKey:#"name"];
NSLog(#"%#", fetchedResults.name);
[results addObject:fetchedResults];
}
NSLog(#"%#", (NSString *)[[element objectForKey:#"User"] objectForKey:#"name"]);
}
NSLog(#"%d", [results count]); // returns 0
I am parsing data from iphone app to json from server but it does not get data from the json
i am using following code
To get Data from json
here is the link of my json data
http://celeritas-solutions.com/emrapp/surveyDescription.php?user_id=ali40
NSString*user=#"ali40";
NSString *url=[NSString stringWithFormat:#"http://celeritas-solutions.com/emrapp/surveyDescription.php?user_id=%#",user];
NSLog(url);
NSArray *tempArray =[[DataManager staticVersion] startParsing:url];
for (int i = 0; i<[tempArray count]; i++) {
id *item = [tempArray objectAtIndex:i];
NSDictionary *dict = (NSDictionary *) item;
ObjectData *theObject =[[ObjectData alloc] init];
[theObject setUser_id:[dict objectForKey:#"user_id"]];
[theObject setSurvey_id:[dict objectForKey:#"survey_id"]];
[theObject setSurvey_title:[dict objectForKey:#"survey_Title"]];
[theObject setSurvey_Description:[dict objectForKey:#"survey_Description"]];
[theObject setDate_Created:[dict objectForKey:#"date_Created"]];
[surveyList addObject:theObject];
[theObject release];
theObject=nil;
int count =[surveyList count];
NSLog(#"Total is %d",count);
DataManager Class
DataManager *theInstance;
+ (id)staticVersion{
if(!theInstance){
theInstance = [[DataManager alloc] init];
}
return theInstance;
}
- (NSMutableArray *) startParsing:(NSString *)theURLString {
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:#"%#",theURLString]];
NSString *fileContent= [NSString stringWithContentsOfURL:url];
SBJSON *parser = [[SBJSON alloc] init];
NSDictionary *data = (NSDictionary *) [parser objectWithString:fileContent error:nil];
NSArray *items = (NSArray *) data ;
return items;
int count=[items count];
NSLog(#"This is testing %d",count);
}
You json is not correct.
It should be like this:
{"ali40":[{"user_id":"ali40","survey_id":"1","survey_title":"Resturant Survey","survey_description":"Survey To get feedback from clients about food quality and any suggestion to improve the service","date_created":"2012-07-24 22:39:14","color":"[UIColor GrayColor]"},{"user_id":"ali40","survey_id":"2","survey_title":"Travel Servey","survey_description":"Toursim Survey","date_created":"2012-07-25 00:43:42","color":"[UIColor greyColor]"}]}
This code returns not null result
NSString*user=#"ali40";
NSString *url=[NSString stringWithFormat:#"http://celeritas-solutions.com/emrapp/surveyDescription.php?user_id=%#",user];
NSLog(#"%#",url);
NSData* data = [NSData dataWithContentsOfURL:
[NSURL URLWithString: url]];
__autoreleasing NSError* error = nil;
id result = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
if (error != nil) NSLog(#"%#",error);
NSLog(#"%#",result);
Output:
2012-07-26 10:26:22.226 test[2511:f803] (
{
color = "[UIColor GrayColor]";
"date_created" = "2012-07-24 22:39:14";
"survey_description" = "Survey To get feedback from clients about food quality and any suggestion to improve the service";
"survey_id" = 1;
"survey_title" = "Resturant Survey";
"user_id" = ali40;
},
{
color = "[UIColor greyColor]";
"date_created" = "2012-07-25 00:43:42";
"survey_description" = "Toursim Survey";
"survey_id" = 2;
"survey_title" = "Travel Servey";
"user_id" = ali40;
}
)
If you json returns many records you need modify your json file
{"users":[{"user_id":"ali40","survey_id":"1","survey_title":"Resturant Survey","survey_description":"Survey To get feedback from clients about food quality and any suggestion to improve the service","date_created":"2012-07-24 22:39:14","color":"[UIColor GrayColor]"},{"user_id":"ali40","survey_id":"2","survey_title":"Travel Servey","survey_description":"Toursim Survey","date_created":"2012-07-25 00:43:42","color":"[UIColor greyColor]"}]}
Then you get the array of records:
NSArray *allItems = [result objectForKey:#"users"];
for (int i=0; i<allItems.count; ++i) {
NSDictionary *item = [allItems objectAtIndex:i]; //here you get every user
NSString *user_id=[item objectForKey:#"user_id"];
NSLog(#"user_id %#",user_id);
}
I have a string in this format :- { panel : {start : [{"element_id" : 0, "element_name" :0, "element_image" : 0, "element_desc" : 0, "element_dob" : 0, "awards" :0},]} how can I parse this string. please help me to overcome this problem. I tried SBJSon - code: -
NSLog(#"response string before = %#", responseStr);
NSData *fileData = [NSData dataWithContentsOfFile:responseStr];
NSString *responseString = [[NSString alloc] initWithData:fileData encoding:NSUTF8StringEncoding];
NSLog(#"response string after = %#", responseString);
NSError *jsonError = nil;
NSDictionary *feed = nil;
SBJsonParser *json = [[SBJsonParser new] autorelease];
feed = [json objectWithString:responseString error:&jsonError];
NSLog(#"feed = %#", feed);
if ([jsonError code]==0) {
// get the array of "results" from the feed and cast to NSArray
NSMutableArray *localObjects = [[[NSMutableArray alloc] init] autorelease];
NSArray *results= (NSArray *)[feed valueForKey:#"start"];
// loop over all the results objects and print their names
int ndx;
for (ndx = 0; ndx < results.count; ndx++)
{
[localObjects addObject:(NSDictionary *)[results objectAtIndex:ndx]];
}
NSLog(#"local objects = %#", localObjects);
}
the NSDictionary feed is getting nil value in NSLog..
Try the following one...
SBJSON *json = [[SBJSON new] autorelease];
NSDictionary *dictResponse = (NSDictionary*) [json objectWithString:sitesResponse error:nil];
You can use Regular Expressions (wiki). Take sources from: RegexKit, add to linker flags "-fopenmp" and use in NSString message "stringByMatching".
For example, if you want take "element_name":
NSString* str = [your_string stringByMatching:#"element_name\".*:(.*?)," capture: 1L];