Putting data from SONObjectWithData to UITableView - ios

i am building a app in which i am getting data from a php file and already NSLoging it in xcode and it is showing data in this format:
jsonObject=(
(
1,
abc,
"abc#xyz.com",
"501 B3 Town"
),
(
2,
sam,
"sam#xyz.com",
"502 B3 Town"
),
(
3,
jhon,
"jhon#xyz.com",
"503 B Town"
)
)
and here is my viewdidload
- (void)viewDidLoad
{
[super viewDidLoad];
statuses=[[NSMutableArray alloc]init];
NSURL *myURL = [NSURL URLWithString:#"http://url/result.php"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:myURL cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:60];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error)
{
NSLog(#"Finished with status code: %i", [(NSHTTPURLResponse *)response statusCode]);
id jsonObject = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];
NSLog(#"jsonObject=%#",jsonObject);
statuses = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
}];
}
now i want to display all records in uitableview. can anyone tell me how can i do that. Thanks

check this tutorial out:
http://thedarkdev.blogspot.co.uk/2013/09/web-service-apps-in-ios7-json-with.html
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return myObject.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = #"Item";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell=[[UITableViewCell alloc]initWithStyle:
UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
NSDictionary *tmpDict = [myObject objectAtIndex:indexPath.row];
NSMutableString *text;
//text = [NSString stringWithFormat:#"%#",[tmpDict objectForKey:title]];
text = [NSMutableString stringWithFormat:#"%#",
[tmpDict objectForKeyedSubscript:title]];
NSMutableString *detail;
detail = [NSMutableString stringWithFormat:#"Author: %# ",
[tmpDict objectForKey:author]];
NSMutableString *images;
images = [NSMutableString stringWithFormat:#"%# ",
[tmpDict objectForKey:thumbnail]];
NSURL *url = [NSURL URLWithString:[tmpDict objectForKey:thumbnail]];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *img = [[UIImage alloc]initWithData:data];
cell.textLabel.text = text;
cell.detailTextLabel.text= detail;
cell.imageView.frame = CGRectMake(0, 0, 80, 70);
cell.imageView.image =img;
return cell;
}

I This format is Array -> Array format in inner array may count is consistent (4) elements
Try This onece
No of row in Sections method take - jsonparsingarray count
Cell for row at index method
display like this ex: name and email id that index is 1 & 3
if ([[jsonparsingarray objectatindex:indexpath.row] count])
{
cell.textlable.text = [[jsonparsingarray objectatindex:indexpath.row]objectatindex:1];
cell.detailtextlable.text = [[jsonparsingarray objectatindex:indexpath.row]objectatindex:3];
}

Related

Segue item info from CollectionView to ViewController

Good afternoon,
I'm trying to make a Segue when the user touches an item from my CollectionView, but it's not working. First, I get the entries of the user from a database (and they are the full URL of the images) and then I display it in the Collection View.
The problem is, when I try to send the one I have touched, it's always NULL. I have tried following tutorials and examples, but no one is loading the entries from a database (and the full url also). The images are loaded in the "fetchImages".
Can you help me? What do I have to do to send the URL of the item I have touched?
This is my ViewController (where my CollectionView is):
//
#import "ProfileViewController.h"
#import "CarDetailOtherViewController.h"
#import <Security/Security.h>
#import "SSKeychainQuery.h"
#import "SSKeychain.h"
#import "SBJson.h"
#interface NSURLRequest (DummyInterface)
+ (BOOL)allowsAnyHTTPSCertificateForHost:(NSString*)host;
+ (void)setAllowsAnyHTTPSCertificate:(BOOL)allow forHost:(NSString*)host;
#end
#interface ProfileViewController ()
#end
#implementation ProfileViewController
static NSString * const reuseIdentifier = #"Cell";
- (void)viewDidLoad {
[super viewDidLoad];
[self.view setBackgroundColor: [self colorWithHexString:#"FFFFFF"]];
self.profileimage.layer.cornerRadius = self.profileimage.frame.size.width / 2;
self.profileimage.clipsToBounds = YES;
self.profileimage.layer.borderWidth = 1.0f;
self.profileimage.layer.borderColor = [UIColor whiteColor].CGColor;
[self fetchImages];
// COLLECTION VIEW
self.oneCollectionView.dataSource = self;
self.oneCollectionView.delegate = self;
}
// MOSTRAMOS LA INFO CUANDO SE HAYA MOSTRADO EL VIEW
- (void)viewDidAppear:(BOOL)animated
{
[self fetchJson];
}
// COLLECTION VIEW
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section
{
return 1;
}
// COLLECTION VIEW
-(NSInteger)numberOfSectionsInCollectionView: (UICollectionView *)collectionView
{
return 1;
}
// COLLECTION VIEW
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return _carImages.count;
}
/*
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
static NSString *identifier = #"Cell";
RecipeViewCell *cell = (RecipeViewCell *)[collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath];
UIImageView *recipeImageView = (UIImageView *)[cell viewWithTag:100];
recipeImageView.image = [UIImage imageNamed:[recipeImages[indexPath.section] objectAtIndex:indexPath.row]];
cell.backgroundView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"photo-frame-2.png"]];
cell.selectedBackgroundView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"photo-frame-selected.png"]];
return cell;
}
*/
// COLLECTION VIEW
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView
cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
MyCollectionViewCell *myCell = [collectionView
dequeueReusableCellWithReuseIdentifier:#"MyCell"
forIndexPath:indexPath];
NSString *data = [[_jsonArray objectAtIndex:indexPath.row] valueForKey:#"imagen"];
NSURL * imageURL = [NSURL URLWithString:data];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSData *imageData = [NSData dataWithContentsOfURL: imageURL];
UIImage *img = [UIImage imageWithData:imageData];
[myCell.imageview performSelectorOnMainThread:#selector(setImage:) withObject:img waitUntilDone:YES];
});
return myCell;
}
// PROFILE INFO
-(void)fetchJson {
NSString *usersPassword = [SSKeychain passwordForService:#"login" account:#"account"];
NSLog(#"usersPassword ==> %#", usersPassword);
NSString *post =[[NSString alloc] initWithFormat:#"usersPassword=%#",usersPassword];
//NSLog(#"PostData: %#",post);
NSURL *url=[NSURL URLWithString:#"http://website.com/profile.php"];
//NSData * data = [NSData dataWithContentsOfURL:url];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
[NSURLRequest setAllowsAnyHTTPSCertificate:YES forHost:[url host]];
NSError *error = [[NSError alloc] init];
NSHTTPURLResponse *response = nil;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
//NSLog(#"Response code: %ld", (long)[response statusCode]);
if ([response statusCode] >=200 && [response statusCode] <300)
{
NSString *responseData = [[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
SBJsonParser *jsonParser = [SBJsonParser new];
NSDictionary *jsonData = (NSDictionary *) [jsonParser objectWithString:responseData error:nil];
NSInteger stars = [(NSNumber *) [jsonData objectForKey:#"stars"] integerValue];
self.stars.text = [NSString stringWithFormat:#"%li", (long)stars];
NSInteger followers = [(NSNumber *) [jsonData objectForKey:#"followers"] integerValue];
self.followers.text = [NSString stringWithFormat:#"%li", (long)followers];
NSInteger pictures = [(NSNumber *) [jsonData objectForKey:#"photos"] integerValue];
self.pictures.text = [NSString stringWithFormat:#"%li", (long)pictures];
self.username.text = [NSString stringWithFormat:#"*%#", usersPassword];
NSString *picture = [jsonData objectForKey:#"picture"];
NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:picture]];
self.profileimage.image = [UIImage imageWithData:imageData];
}
}
-(void)fetchImages {
self.carImages = [[NSMutableArray alloc] init];
NSString *usersPassword = [SSKeychain passwordForService:#"login" account:#"account"];
NSString * urlString = [NSString stringWithFormat:#"http://website.com/posts.php?usersPassword=%#",usersPassword];
NSURL * url = [NSURL URLWithString:urlString];
NSData * data = [NSData dataWithContentsOfURL:url];
NSError *error;
[_jsonArray removeAllObjects];
_jsonArray = [NSJSONSerialization
JSONObjectWithData:data
options:NSJSONReadingMutableContainers|NSJSONReadingMutableLeaves
error:&error];
for(int i=0;i<_jsonArray.count;i++)
{
NSDictionary * jsonObject = [_jsonArray objectAtIndex:i];
NSString* imagen = [jsonObject objectForKey:#"imagen"];
[_carImages addObject:imagen];
}
NSLog(#"CARIMAGES ==> %#", _carImages);
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
// IMAGEN
-(UIColor*)colorWithHexString:(NSString*)hex
{
NSString *cString = [[hex stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];
// String should be 6 or 8 characters
if ([cString length] < 6) return [UIColor grayColor];
// strip 0X if it appears
if ([cString hasPrefix:#"0X"]) cString = [cString substringFromIndex:2];
if ([cString length] != 6) return [UIColor grayColor];
// Separate into r, g, b substrings
NSRange range;
range.location = 0;
range.length = 2;
NSString *rString = [cString substringWithRange:range];
range.location = 2;
NSString *gString = [cString substringWithRange:range];
range.location = 4;
NSString *bString = [cString substringWithRange:range];
// Scan values
unsigned int r, g, b;
[[NSScanner scannerWithString:rString] scanHexInt:&r];
[[NSScanner scannerWithString:gString] scanHexInt:&g];
[[NSScanner scannerWithString:bString] scanHexInt:&b];
return [UIColor colorWithRed:((float) r / 255.0f)
green:((float) g / 255.0f)
blue:((float) b / 255.0f)
alpha:1.0f];
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([[segue identifier] isEqualToString:#"segueentry"])
{
NSArray *indexPaths = [self.oneCollectionView indexPathsForSelectedItems];
CarDetailOtherViewController *destViewController = segue.destinationViewController;
NSIndexPath *indexPath = [indexPaths objectAtIndex:0];
destViewController.ID = [[_jsonArray objectAtIndex:indexPath.section] valueForKey:#"imagen"];
NSLog(#"DATA ==> %#", [[_jsonArray objectAtIndex:indexPath.section] valueForKey:#"imagen"]);
}
}
#end
Thanks in advance.
it has to be row instead of section in your prepareforsegue:
destViewController.ID = [[_jsonArray objectAtIndex:indexPath.row] valueForKey:#"imagen"];
and btw: you can easily get the indexpath doing the following:
NSIndexPath *selectedIndexPath = [self.collectionView indexPathForCell:sender];
You have to add this delegate method, this delegate will call every time you select a item in the UICollectionView. Inside this delegate perform your segue. As the sender, send your selected indexPath.
- (void)collectionView:(UICollectionView *)collectionView
didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
[self performSegueWithIdentifier:#"segueentry" sender: indexPath];
}
Then from - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender you can get the selected indexPath as sender for your logic.

Unable to retrieve the Data from web service to UITableView

I was Unable to retrieve the data from web service and display the same in my UITableView cell. I was able to see the data that was added in the past. When I go to my application, add a record I was not able to see any thing. Here is the below code. To make sure I was using IOS 8, Xcode 6. I worked on this application in the recent past and use to work fine in IOS 7 or IOS 6. When I upgraded there are few problems like not displaying the data in UITabelView
-(void)loadprojects
{
NSString *eventDate = self.StringfromTextField3;
[[NSUserDefaults standardUserDefaults] setObject:eventDate forKey:#"Eventdate"];
[[NSUserDefaults standardUserDefaults] synchronize];
NSString *post =[[NSString alloc] initWithFormat:#"username=%#",[self.tableView dataSource]];
NSString *strwebsite = [[NSUserDefaults standardUserDefaults] valueForKey:#"website"];
NSString *websitemethods = #"Timesheet.svc/GetTimesheet";
NSString *projecturltemp = [strwebsite stringByAppendingString:websitemethods];
NSString *str = [[NSUserDefaults standardUserDefaults] valueForKey:#"UserLoginIdSession"];
NSString *usrid = str;
NSString * projecturl =[NSString stringWithFormat:#"%#/%#/%#",projecturltemp,usrid,eventDate];
NSURL *url = [NSURL URLWithString:projecturl];
//NSLog(#"url : %#", url);
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/projectpicker" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/jsonArray" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSError *error = [[NSError alloc] init];
NSHTTPURLResponse *response = nil;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url
cachePolicy:NSURLRequestReturnCacheDataElseLoad
timeoutInterval:30];
// Make synchronous request
urlData = [NSURLConnection sendSynchronousRequest:urlRequest
returningResponse:&response
error:&error];
if ([response statusCode] >= 200 && [response statusCode] < 300)
{
NSString *responseData = [NSJSONSerialization JSONObjectWithData:urlData
options:NSJSONReadingAllowFragments error:&error];
NSArray *entries = [NSJSONSerialization JSONObjectWithData:[responseData dataUsingEncoding:NSUTF8StringEncoding]
options:0 error:&error];
if(!entries)
{
NSLog(#"Error : %#", error);
}
else{
for (NSDictionary *entry in entries) {
projectNames = [entries valueForKey:#"NM_PROJECT"];
taskNames = [entries valueForKey:#"TASk_NAME"];
subtaskNames = [entries valueForKey:#"SUBTASK_NAME"];
timesheetid = [entries valueForKey:#"ID_TIMESHEET_DTLS"];
projId = [entries valueForKey:#"ID_PROJECT"];
taskId = [entries valueForKey:#"ID_TASK"];
subtaskId = [entries valueForKey:#"ID_SUB_TASK"];
totalhours = [entries valueForKey:#"No_Hours"];
approve = [entries valueForKey:#"FL_APPROVE"];
leaves = [entries valueForKey:#"NM_LEAVE"];
}
}
} else {
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
#warning Potentially incomplete method implementation.
// Return the number of sections.
return 1;
}
-(NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [projectNames count];
}
-(UITableViewCell*) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *identitifier = #"Cell";
TableViewCell * cell = [tableView
dequeueReusableCellWithIdentifier:identitifier
forIndexPath:indexPath];
if ([[[timesheetid objectAtIndex:indexPath.row] stringValue] isEqualToString:#"0"])
{
cell.lblProjects.text = [NSString stringWithFormat:#"%#",#"No Projects Filled"];
cell.lblTasks.text = [NSString stringWithFormat:#"%#",#"No Tasks Filled"];
cell.lblSubTasks.text = [NSString stringWithFormat:#"%#",#"No SubTasks Filled"];
cell.lblHours.text = [NSString stringWithFormat:#"%#",#"0 Hours Filled"];
cell.accessoryType = UITableViewCellAccessoryNone;
cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
else if ([[leaves objectAtIndex:indexPath.row] isEqualToString:#"0"])
{
cell.lblProjects.text = [projectNames objectAtIndex:indexPath.row];
cell.lblTasks.text = [taskNames objectAtIndex:indexPath.row];
cell.lblSubTasks.text = [subtaskNames objectAtIndex:indexPath.row];
cell.lblHours.text = [[totalhours objectAtIndex:indexPath.row] stringValue];
NSLog(#"cell :%#",cell.lblHours.text);
NSLog(#"lblProjects :%#",cell.lblProjects.text);
}
else
{
cell.lblProjects.text = [leaves objectAtIndex:indexPath.row];
cell.lblTasks.text = [NSString stringWithFormat:#"%#",#"No Projects/Tasks on this Date"];
cell.lblSubTasks.text = [NSString stringWithFormat:#"%#",#"No Sub Tasks on this Date"];
cell.lblHours.text = [[totalhours objectAtIndex:indexPath.row] stringValue];
}
cell.editingAccessoryType = UITableViewCellAccessoryDetailDisclosureButton;
NSNumber *myProjectArrayString = [timesheetid objectAtIndex:indexPath.row];
cell.hdbrowcount = [NSString stringWithFormat:#"%#",myProjectArrayString];
return cell;
}
- (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return UITableViewAutomaticDimension;
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
//NSLog(#"index :%#",[timesheetid objectAtIndex:[self.tableView indexPathForSelectedRow].row]);
[self performSegueWithIdentifier:#"segueName" sender:indexPath];
//[tableView setEditing:YES animated:YES];
// Navigation logic may go here. Create and push another view controller.
/*
<#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:#"<#Nib name#>" bundle:nil];
// ...
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
*/
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Make sure your segue name in storyboard is the same as this line
if ([[segue identifier] isEqualToString:#"segueNameforAddPage"])
{
UINavigationController *segueNameNavController=segue.destinationViewController;
AddProjectDetails *NavWeekScreen = (AddProjectDetails*)segueNameNavController.topViewController;
NSString *str = [[NSUserDefaults standardUserDefaults] valueForKey:#"UserLoginIdSession"];
NavWeekScreen.projidstocancel = self.StringfromTextField3;
NavWeekScreen.StringfromProjectsTasksscreenuser=str;
NSInteger appoved = [[approve valueForKeyPath:#"#sum.integerValue"] intValue];
NavWeekScreen.ApprovalorNot = appoved;
NSInteger sumArray = [[totalhours valueForKeyPath:#"#sum.integerValue"] floatValue];
NavWeekScreen.totalhrsAdd = sumArray;
}
}

JSON Data in UITableViewCell

Hi I am developing one quizz app and the issue is, I have the following JSON Data, which is a respond from my WebService.
[
{
"id": "3",
"question": "tes!2t",
"option1": "test",
"option2": "test",
"option3": "test",
"option4": "test",
"correct_answer": "test",
"explanation": "test",
"image": "test",
"created_at": "2014-09-23 02:00:00",
"updated_at": "2014-09-09 06:19:28"
}
]
How can I display the Data option1,option2,option3 and option4 in a TableViewCell.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 4;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:#"MyCell"];
if (cell==nil)
{
cell=[[UITableViewCell alloc]initWithFrame:CGRectZero];
}
NSString *urlString = #"http://localhost/quiz/public/questions";
NSData *JSONData = [NSData dataWithContentsOfFile:urlString:NSDataReadingMappedIfSafe error:nil];
NSDictionary *jsonObject = [NSJSONSerialization JSONObjectWithData:JSONData options:NSJSONReadingMutableContainers error:nil];
NSArray *array = [jsonObject objectForKey:#"questions"];
questions = [[NSMutableArray alloc] initWithCapacity:[array count]];
//choices = [[NSArray alloc] init];
for (NSDictionary *dict in array) {
question = [[Questions alloc] initWithObject:dict];
[questions addObject:question];
}
cell.textLabel.text = [choices objectAtIndex:indexPath.row];
cell.textLabel.font=[UIFont fontWithName:#"Bold" size:12];
cell.backgroundColor=[UIColor grayColor];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
int selectedRow = indexPath.row;
NSString *filePathChoices = [[NSBundle mainBundle] pathForResource:#"questions" ofType:#"json"];
NSData *JSONDataChoices = [NSData dataWithContentsOfFile:urlString
:NSDataReadingMappedIfSafe error:nil];
NSMutableDictionary *jsonObjectChoices = [NSJSONSerialization JSONObjectWithData:JSONDataChoices options:NSJSONReadingMutableContainers error:nil];
Any help would be appreciated. Thanks in advance !
Try this hopefully it will works:
NSString *urlString = #"your URL";
NSURL *url = [NSURL URLWithString:urlString];
NSData *data = [NSData dataWithContentsOfURL:url];
NSError *error;
jsonObject = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:&error];
jsonDict11 = [jsonObject valueForKey:#"question"];
NSLog(#"array %#",jsonDict11);
NSLog(#"Count : %d", [jsonDict11 count]);
Questionscount=[jsonDict11 count];
self.QuestionsText.text=[jsonDict11 objectAtIndex:ii];
In TableView:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:#"MyCell"];
if (cell==nil)
{
cell=[[UITableViewCell alloc]initWithFrame:CGRectZero];
}
NSArray *jsonDict1=[jsonObject valueForKey:#"option1"];
NSArray *jsonDict2=[jsonObject valueForKey:#"option2"];
NSArray *jsonDict3=[jsonObject valueForKey:#"option3"];
NSArray *jsonDict4=[jsonObject valueForKey:#"option4"];
NSString *str1=[jsonDict1 objectAtIndex:ii];
NSString *str2=[jsonDict2 objectAtIndex:ii];
NSString *str3=[jsonDict3 objectAtIndex:ii];
NSString *str4=[jsonDict4 objectAtIndex:ii];
nameArr = [NSArray arrayWithObjects:str1,str2,str3,str4,nil];
cell.textLabel.text = [nameArr objectAtIndex:indexPath.row];
return cell;
}
Try this:
NSString *jsonString = #"[{\"id\":\"3\",\"question\":\"tes!2t\",\"option1\":\"test\",\"option2\":\"test\",\"option3\":\"test\",\"option4\":\"test\",\"correct_answer\":\"test\",\"explanation\":\"test\",\"image\":\"test\",\"created_at\":\"2014-09-23 02:00:00\",\"updated_at\":\"2014-09-09 06:19:28\"}]";
Pass your json string ("jsonString")
NSData *aDataJson = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSError *aError = nil;
NSArray *aArrJson = [NSJSONSerialization JSONObjectWithData:aDataJson options:NSJSONReadingMutableContainers error: &aError];
NSLog(#"%#",aArrJson);
NSLog(#"%#",[[aArrJson objectAtIndex:0] objectForKey:#"question"]);

NSInvalidArgumentException reason: data parameter is nil in UITableView while trying to display the Flickr images

Hi in my application I want to display the Flickr album list in UITableView so i have searched for long time and i have found some solution. I have used the method which given in the solution its not working its giving error like
NSInvalidArgumentException', reason: 'data parameter is nil
The solution link click here
And since I'm trying this for first time I'm not able resolve this issue. This is MY API LINK for Flickr
I have used this code to display the Flickr image Album list in UItableview
{
NSMutableArray *photoURLs;
NSMutableArray *photoSetNames;
NSMutableArray *photoid1;
}
My Flickr API key
#define FlickrAPIKey #"a6a0c7d5efccffc285b0fe5ee1d938e3"
- (void)viewDidLoad
{
[super viewDidLoad];
photoURLs = [[NSMutableArray alloc] init];
photoSetNames = [[NSMutableArray alloc] init];
photoid1 = [[NSMutableArray alloc] init];
[self loadFlickrPhotos];
}
My TableView code
- (void)loadFlickrPhotos
{
NSString *urlString = [NSString stringWithFormat:#"http://api.flickr.com/services/rest/?method=flickr.photosets.getList&api_key=%#&user_id=%#&per_page=10&format=json&nojsoncallback=1", FlickrAPIKey, #"124757153#N04"];
NSURL *url = [NSURL URLWithString:urlString];
NSString *jsonString = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:nil];
NSDictionary *results = [NSJSONSerialization JSONObjectWithData:[jsonString dataUsingEncoding:NSUTF8StringEncoding] options:0 error:nil];
NSArray *photosets = [[results objectForKey:#"photosets"] objectForKey:#"photoset"];
for (NSDictionary *photoset in photosets) {
NSString *title = [[photoset objectForKey:#"title"] objectForKey:#"_content"];
[photoSetNames addObject:(title.length > 0 ? title : #"Untitled")];
NSString *photoid = [photoset objectForKey:#"id"];
[photoid1 addObject:photoid];
}
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [photoSetNames count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier =#"Cell";
flickrpoliticalCell *cell =(flickrpoliticalCell *)[tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil) {
cell = [[flickrpoliticalCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
cell.tit.text = [photoSetNames objectAtIndex:indexPath.row];
return cell;
}
try this
- (void)loadFlickrPhotos
{
//
NSString *urlString = [NSString stringWithFormat:#"https://www.flickr.com/services/rest/?method=flickr.photosets.getList&api_key=a6a0c7d5efccffc285b0fe5ee1d938e3&format=json&user_id=124757153#N04&per_page=10&nojsoncallback=1",nil];
NSLog(#"the url string==%#",urlString);
NSURL *url = [NSURL URLWithString:urlString];
NSString *jsonString = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:nil];
NSLog(#"the str==%#",jsonString);
NSDictionary *results = [NSJSONSerialization JSONObjectWithData:[jsonString dataUsingEncoding:NSUTF8StringEncoding] options:0 error:nil];
NSArray *photosets = [[results objectForKey:#"photosets"] objectForKey:#"photoset"];
for (NSDictionary *photoset in photosets) {
NSString *title = [[photoset objectForKey:#"title"] objectForKey:#"_content"];
NSLog(#"title==%#",title);
[photoSetNames addObject:(title.length > 0 ? title : #"Untitled")];
NSString *primary = [photoset objectForKey:#"primary"];
NSString *server = [photoset objectForKey:#"server"];
NSString *secret = [photoset objectForKey:#"secret"];
NSString *farm = [photoset objectForKey:#"farm"];
NSString *urlstr=[NSString stringWithFormat:#"http://farm%#.staticflickr.com/%#/%#_%#.jpg",farm,server,primary,secret];
NSLog(#"your photo id==%#",urlstr);
[photoids addObject:urlstr];
}
}

Cell text overlapping when scrolling in UITableView Xcode iOS

Everytime I start scrolling in the tableView the subtitleLabel text keeps overlapping each other in every row. I've tried for the last 4 hours every single search on the Internet for this problem I have clicked and tried.
Here is my ViewController.m:
#interface ANViewController()
{
NSMutableArray *TitleLabel;
NSMutableArray *SubtitleLabel;
NSMutableArray *AvatarImages;
}
#end
#implementation ANViewController
#synthesize thetableview;
- (void)viewDidLoad
{
[super viewDidLoad];
self.thetableview.delegate = self;
self.thetableview.dataSource = self;
TitleLabel = [NSMutableArray array];
SubtitleLabel = [NSMutableArray array];
AvatarImages = [NSMutableArray array];
__block NSArray *posts;
__block NSData *allNewsData = nil;
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0ul);
dispatch_async(queue, ^{
allNewsData = [NSData dataWithContentsOfURL:[NSURL URLWithString: API_URL]];
NSError *error;
NSMutableDictionary *allNews = [NSJSONSerialization JSONObjectWithData:allNewsData options:NSJSONReadingMutableContainers error:&error];
if (error) {
NSLog(#"%#", [error localizedDescription]);
} else {
posts = allNews[#"data"];
for (NSDictionary *newsPost in posts) {
[TitleLabel addObject:newsPost[#"title"]];
[SubtitleLabel addObject:newsPost[#"post_message"]];
NSString *avatarUrl = AVATAR_URL;
NSString *avatarExt = #".jpg";
[AvatarImages addObject:[NSString stringWithFormat:#"%#%#%#", avatarUrl, newsPost[#"user_id"], avatarExt]];
}
}
dispatch_sync(dispatch_get_main_queue(), ^{
NSLog(#"THIS IS THE MAIN THREAD...");
[self.thetableview reloadData];
});
});
NSURL *url = [NSURL URLWithString: WEBSITE_URL];
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url];
[webView loadRequest:urlRequest];
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
long count = TitleLabel.count;
if(count == 0){
count = 1;
}
return count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *CellIdentifier;
ANTableViewCell *Cell;
if(TitleLabel.count == 0){
NSLog(#"Did with no news");
CellIdentifier = #"Cell_NoNews";
Cell = [thetableview dequeueReusableCellWithIdentifier:CellIdentifier];
if (Cell == nil) {
Cell = [[ANTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
Cell.noNewsLabel.text = #"No news to display!";
}else{
NSLog(#"Did with news");
CellIdentifier = #"Cell";
Cell = [thetableview dequeueReusableCellWithIdentifier:CellIdentifier];
if (Cell == nil) {
Cell = [[ANTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
Cell.TitleLabel.text = [TitleLabel objectAtIndex:indexPath.row];
Cell.SubtitleLabel.text = [SubtitleLabel objectAtIndex:indexPath.row];
NSURL *url = [NSURL URLWithString:[AvatarImages objectAtIndex:indexPath.row]];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *img = [[UIImage alloc] initWithData:data];
Cell.AvatarImage.image = img;
}
return Cell;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#end
Just change UITableViewCellStyleSubtitle for UITableViewCellStyleDefault, and you need an asynchronous connection instead of a synchronous like you're doing: NSData *allNewsData = [[NSData alloc] initWithContentsOfURL: [NSURL URLWithString:API_URL]]; in your viewDidLoad method that is blocking your main thread.
You can adapt this code to your need, in order to download it on the background:
__block NSData *allNewsData = nil;
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_async(queue, ^{
allNewsData = [NSData dataWithContentsOfURL:[NSURL URLWithString: API_URL]];
NSURL *url = [NSURL URLWithString: WEBSITE_URL];
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url];
[webView loadRequest:urlRequest];
dispatch_sync(dispatch_get_main_queue(), ^{
NSLog(#"THIS IS THE MAIN THREAD...");
[self.thetableview reloadData];
});
});

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