i write this code
- (void)requestFinished:(ASIHTTPRequest *)request
{
// Use when fetching text data
NSString *responseString = [request responseString];
dataToDisplay = [[NSMutableArray alloc] init];
//NSString *myJSON = [[NSString alloc] initWithString:responseString];
NSDictionary *json = [responseString JSONValue];
Status *statut = [[Status alloc] init];
statut.flyNumber = [json objectForKey:#"flynumber"];
statut.ftatuts = [json objectForKey:#"fstatuts"];
statut.escDepart = [json objectForKey:#"escdepart"];
statut.escArrival = [json objectForKey:#"escarrival"];
statut.proArrival = [json objectForKey:#"proarrival"];
statut.proDepart = [json objectForKey:#"prodepart"];
statut.estDepart = [json objectForKey:#"estdepart"];
statut.estArrival = [json objectForKey:#"estarrival"];
statut.realDepart = [json objectForKey:#"realdepart"];
statut.realArrival = [json objectForKey:#"realarrived"];
[dataToDisplay addObject:statut];
NSLog(#"ok");
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [dataToDisplay count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
// Configure the cell...
NSLog(#"1 ok");
Status *statut2 = [dataToDisplay objectAtIndex:indexPath.row];
NSLog(#"2 ok");
cell.textLabel.text = [NSString stringWithFormat:#"%# - %#",statut2.flyNumber,statut2.ftatuts];
NSLog(#"3 ok");
return cell;
}
The problem that the table still empty . And i don't have "ok 1" message in the console .
This is my controller .h
#import <UIKit/UIKit.h>
#import "ASIHTTPRequest.h"
#import "JSON.h"
#import "Status.h"
#interface StatusTableViewController : UITableViewController {
NSString * Flynumber;
NSMutableArray *dataToDisplay;
}
#property(retain,nonatomic) IBOutlet NSString * Flynumber;
#end
i added [self.tableView reloadData]; and it work .
But how to put each result on a line (cell) ?
To execute a reload you have to execute :
[self.tableView reloadData];
at the end of the requestFinished: function
provided you have set everything else correctly, would you try and execute a reloadData at the end of - (void)requestFinished:(ASIHTTPRequest *)request?
Does your controller (?) conform to the UITableViewDelegate and UITableViewDataSource protocols?
#interface YourController : UIViewController <UITableViewDelegate, UITableViewDataSource> {...}
If yes, check to make sure you've set the dataSource property. Typically, this is set to self.
Related
I'm a beginner and I've read everything on StackOverflow about my problem - my app with json data doesn't show anything on TableViewController. I'm probably missing something obvious, but the help is appreciated very very much. (I'm using the latest Xcode 5 DP, if it's important).
TableVC.h
#interface TableVC : UITableViewController <UITableViewDataSource, UITableViewDelegate>
#property (strong, nonatomic) NSDictionary *kinos;
#property (retain, nonatomic) UITableView *tableView;
-(void)fetchKinos;
#end
And the TableVC.m file is
#interface TableVC ()
#end
#implementation TableVC
- (void)viewDidLoad
{
[self fetchKinos];
[self.tableView reloadData];
[super viewDidLoad];
}
-(void)fetchKinos {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:#"http://www.adworldmagazine.com/json.json"]];
NSError *error;
_kinos = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
dispatch_async(dispatch_get_main_queue(), ^{
[self.tableView reloadData];
});
});
}
#pragma mark - Table view data source
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return _kinos.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"KinoCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
//[self configureCell:cell atIndexPath:indexPath];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
NSArray *entities = [_kinos objectForKey:#"entities"];
NSDictionary *kino = [entities objectAtIndex:indexPath.row];
NSDictionary *title = [kino objectForKey:#"title"];
NSString *original = [title objectForKey:#"original"];
NSString *ru = [title objectForKey:#"ru"];
cell.textLabel.text = original;
cell.detailTextLabel.text = ru;
return cell;
}
#end
Your JSON response dictionary contains an array of entities whose count needs to be returned from the table view method.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [[self.kinos objectForKey:#"entities"] count];
}
Also, a suggestion, when you declare strong properties, try to access them as self.propertyName instead of accessing the ivar like _propertyName.
Hope that helps!
I accessed your url- http://www.adworldmagazine.com/json.json on my browser.
The response returns a JSON with root: dictionary.
So,
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return _kinos.count;
}
wont work.
Use this instead:
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [_kinos objectForKey:#"entities"].count;
}
I have a uitableview that's displaying multiple selections with a custom checkmark. When selected the rows value is save using NSUserDefaults. The problem is that despite the values being saved the checkmarks disappear from the table cell rows. I can't figure out why.
thanks for any help, I'm really stuck on this.
Here's the .h code:
#interface CategoriesViewController : UITableViewController {
NSString *selectedCategoryTableString;
NSString *jsonStringCategory;
int prev;
}
// arForTable array will hold the JSON results from the api
#property (nonatomic, retain) NSArray *arForTable;
#property (nonatomic, retain) NSMutableArray *arForIPs;
#property (nonatomic, retain) NSMutableArray *categorySelected;
#property (nonatomic, retain) NSString *jsonStringCategory;
#property(nonatomic, retain) UIView *accessoryView;
#end
and the .m code:
#implementation CategoriesViewController
#synthesize jsonStringCategory;
#synthesize arForTable = _arForTable;
#synthesize arForIPs = _arForIPs;
- (void)viewDidLoad
{
[super viewDidLoad];
self.arForIPs=[NSMutableArray array];
self.categorySelected = [[NSMutableArray alloc] init];
[self reloadMain];
self.tableView.allowsMultipleSelection = YES;
}
-(void) reloadMain {
jsonString = #"http:///******";
// Download the JSON
NSString *jsonString = [NSString
stringWithContentsOfURL:[NSURL URLWithString:jsonString]
encoding:NSStringEncodingConversionAllowLossy|NSUTF8StringEncoding
error:nil];
NSMutableArray *itemsTMP = [[NSMutableArray alloc] init];
// Create parser
SBJSON *parser = [[SBJSON alloc] init];
NSDictionary *results = [parser objectWithString:jsonString error:nil];
itemsTMP = [results objectForKey:#"results"];
self.arForTable = [itemsTMP copy];
[self.tableView reloadData];
}
#pragma mark - Table view data source
- (int)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (int)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [self.arForTable count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
[cell.textLabel setFont:[UIFont fontWithName: #"Asap-Bold" size: 14.0f]];
[cell.detailTextLabel setFont:[UIFont fontWithName: #"Asap-Bold" size: 14.0f]];
cell.accessoryView.hidden = NO;
}
UIImageView *cellAccessoryImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"icon-tick.png"]] ;
UIImageView *cellAccessoryNoneImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#""]] ;
if([self.arForIPs containsObject:indexPath]){
cell.accessoryView = cellAccessoryImageView;
} else {
cell.accessoryView = cellAccessoryNoneImageView;
}
// Get item from tableData
NSDictionary *item = (NSDictionary *)[_arForTable objectAtIndex:indexPath.row];
// encoding fix
NSString *utf8StringTitle = [item objectForKey:#"name"];
NSString *correctStringTitle = [NSString stringWithCString:[utf8StringTitle cStringUsingEncoding:NSISOLatin1StringEncoding] encoding:NSUTF8StringEncoding];
cell.textLabel.text = [correctStringTitle capitalizedString];
NSNumber *num = [item objectForKey:#"id"];
cell.detailTextLabel.text = [num stringValue];
cell.detailTextLabel.hidden = YES;
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
if([self.arForIPs containsObject:indexPath]){
[self.arForIPs removeObject:indexPath];
[self.categorySelected removeObject:[[self.arForTable objectAtIndex:indexPath.row] objectForKey:#"id"]];
} else {
[self.arForIPs addObject:indexPath];
[self.categorySelected addObject:[[self.arForTable objectAtIndex:indexPath.row] objectForKey:#"id"]];
NSLog(#"%# categorySelected",self.categorySelected);
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSLog(#"%# defaults categorySelected",[defaults arrayForKey:#"selectedCategoryTableString"]);
NSString *string = [self.categorySelected componentsJoinedByString:#","];
[defaults setObject:string forKey:#"selectedCategoryTableString"];
NSLog(#"%# STRING",string);
}
[tableView reloadData];
}
-(void) viewWillAppear:(BOOL)animated {
[super viewWillAppear:NO];
[self.navigationController setNavigationBarHidden:YES animated:NO];
self.navigationController.toolbarHidden = YES;
}
First of all your code has lots of memory leaks, please do use the static analyzer and/or instruments to fix them, few for them are pretty obvious like you initialized the SBJSON parser and did not release it, itemsTMP is another.
I have rewritten your code to be much more efficient and memory friendly:
#interface CategoriesViewController : UITableViewController
{
NSArray *_items;
NSMutableArray *_selectedItems;
UIImageView *cellAccessoryImageView;
}
#end
#implementation CategoriesViewController
- (void)viewDidLoad
{
[super viewDidLoad];
_selectedItems = [NSMutableArray new];
cellAccessoryImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"icon-tick.png"]] ;
[self reloadMain];
self.tableView.allowsMultipleSelection = YES;
}
- (void)reloadMain
{
NSString *jsonString = #"http:///******";
// Download the JSON
jsonString = [NSString
stringWithContentsOfURL:[NSURL URLWithString:jsonString]
encoding:NSStringEncodingConversionAllowLossy|NSUTF8StringEncoding
error:nil];
// Create parser
SBJSON *parser = [SBJSON new];
NSDictionary *results = [parser objectWithString:jsonString error:nil];
if (_items) [_items release];
_items = [[results objectForKey:#"results"] copy];
[parser release];
[self.tableView reloadData];
}
#pragma mark - Table view data source
- (int)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (int)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [_items count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
[cell.textLabel setFont:[UIFont fontWithName: #"Asap-Bold" size: 14.0f]];
[cell.detailTextLabel setFont:[UIFont fontWithName: #"Asap-Bold" size: 14.0f]];
cell.accessoryView.hidden = NO;
}
NSDictionary *item = [_items objectAtIndex:indexPath.row];
if ([_selectedItems containsObject:item])
{
// preloaded image will help you have smoother scrolling
cell.accessoryView = cellAccessoryImageView;
}
else
{
cell.accessoryView = nil;
cell.accessoryType = UITableViewCellAccessoryNone;
}
// Get item from tableData
cell.textLabel.text = [[NSString stringWithCString:[[item objectForKey:#"name"] cStringUsingEncoding:NSISOLatin1StringEncoding] encoding:NSUTF8StringEncoding] capitalizedString];
cell.detailTextLabel.text = [[item objectForKey:#"id"] stringValue];
cell.detailTextLabel.hidden = YES;
item = nil;
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
NSDictionary *item = [_items objectAtIndex:indexPath.row];
if ([_selectedItems containsObject:item])
{
[_selectedItems removeObject:item];
}
else
{
[_selectedItems addObject:item];
}
item = nil;
[tableView reloadRowsAtIndexPaths:#[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
}
- (void)dealloc
{
[_selectedItems release];
[cellAccessoryImageView release];
[super dealloc];
}
#end
Since in your table there is only one section. Try this approach and this will help you certainly.
In - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath write following code;
if([self.arForIPs containsObject:[NSNumber numberWithInt:indexPath.row]]){
cell.accessoryView = cellAccessoryImageView;
} else {
cell.accessoryView = cellAccessoryNoneImageView;
}
And in - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath write code as below,
if([self.arForIPs containsObject:[NSNumber numberWithInt:indexPath.row]]){
[self.arForIPs removeObject:[NSNumber numberWithInt:indexPath.row]];
} else {
[self.arForIPs addObject:[NSNumber numberWithInt:indexPath.row]]
}
I have a parsed data from JSON file. It works like a charm in the first view of my UITableView. However, it displays a blank second view when I tap on an item.
MasterView.h
#interface MasterViewController : UITableViewController
{
NSArray *json;
}
#property (nonatomic, retain) NSArray *json;
#end
MasterView.m
#import "MasterViewController.h"
#import "InformationViewController.h"
#interface MasterViewController ()
#end
#implementation MasterViewController
#synthesize json;
- (void)viewDidLoad
{
[super viewDidLoad];
NSData *jsonData = [NSData dataWithContentsOfURL:[NSURL URLWithString:#"http://j4hm.t15.org/ios/console.php"]];
[self performSelectorOnMainThread: #selector(fetchedData:) withObject: jsonData waitUntilDone: YES];
}
- (void)fetchedData:(NSData *)responseData
{
NSError *error;
self.json = [NSJSONSerialization JSONObjectWithData: responseData options: kNilOptions error: &error];
NSLog(#"String is %#", self.json);
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [json count];
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
cell.textLabel.text = [[json objectAtIndex: indexPath.row] objectForKey: #"Console"];
[cell setAccessoryType: UITableViewCellAccessoryDisclosureIndicator];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
InformationViewController *informationViewController = [[InformationViewController alloc] initWithStyle:UITableViewStylePlain];
informationViewController.title = [[json objectAtIndex: indexPath.row] objectForKey: #"Console"];
informationViewController.Information = [[json objectAtIndex: indexPath.row] objectForKey: #"Model"];
NSLog(#"String is %#", informationViewController.Information);
[self.navigationController pushViewController: informationViewController animated:YES];
}
InformationView.h
#interface InformationViewController : UITableViewController
#property (nonatomic, strong) NSArray * Information;
#end
InformationView.m
#interface InformationViewController ()
#end
#implementation InformationViewController
#synthesize Information;
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
// Configure the cell...
cell.textLabel.text = [[Information objectAtIndex: indexPath.row] objectForKey: #"Model"];
[cell setAccessoryType: UITableViewCellAccessoryDisclosureIndicator];
return cell;
}
Here i Posted Another Answer Just Because i don't want to Generate Confusion.
The Project Code : http://www.cogzentappz.com/demo/iostutorial/TestJson.zip
instead of passing the Selected Value, Pass the Whole Array through NSUsedDefaults And Retrive them Using Following Code.
- (void)fetchedData:(NSData *)responseData
{
NSError *error;
self.json = [NSJSONSerialization JSONObjectWithData: responseData options: kNilOptions error: &error];
NSLog(#"String is %#", self.json);
NSUserDefaults *standardDefaults = [NSUserDefaults standardUserDefaults];
NSMutableArray *arrayObj = [[NSMutableArray alloc] init];
for(int i = 0 ; i<[self.json count] ; i++) {
[arrayObj addObject:[json objectAtIndex:i]]];
}
[standardDefaults setObject:arrayObj forKey:#"longArray"];
[arrayObj release];
}
In the Next View you can Retrive the data Using the Below method.
in ViewDidLoad of informationViewcontroller use This
//reading
NSUserDefaults *standardDefaults = [NSUserDefaults standardUserDefaults];
NSArray *arrayObj = [standardDefaults objectForKey:#"longArray"];
for(int i = 0 ; i<[arrayObj count] ; i++) {
NSLog(#"String is %#",[arrayObj objectAtIndex:i]);
}
As per Your Link The Json Output is like Below :
NSArray-->NSDictionary-->NSArray-->NSDictionary-->NSArray-->NSDictionary
Go to the link : http://json.bloople.net and Post all your json output and Hit enter.
So you have to get the values According to that format.
for(int i = 0 ; i<[self.json count] ; i++) {
NSArray *info_Array=[[self.json objectAtIndex:i ]valueForKey:#"Information"];
NSLog(#"info_Array is %#", info_Array);
for(int j = 0 ; j<[info_Array count] ; j++)
{
NSLog(#"Model is %#", [[info_Array objectAtIndex:j ]valueForKey:#"Model"]);
NSArray *title_Array=[[info_Array objectAtIndex:j ]valueForKey:#"Title"];
for(int k = 0 ; k<[title_Array count] ; k++)
{
NSLog(#"Game is %#", [[title_Array objectAtIndex:k ]valueForKey:#"Game"]);
NSLog(#"Publisher is %#", [[title_Array objectAtIndex:k ]valueForKey:#"Publisher"]);
}
}
NSString *Console_string= [[dataArray objectAtIndex:i ]valueForKey:#"Console"];
NSLog(#"String is %#", Console_string);
}
NSString *Console_string= [[self.Json objectAtIndex:i ]valueForKey:#"Console"];
NSLog(#"String is %#", Console_string);
}
I think you have to reloadData after you fetch your data. Right now, you specify that the NSArrray *json is empty, since the count returns 0. Thus, you prohibit the table view from being filled. Call [tableView reloadData]; after you fetch your data.
Change your code of MaterView.m with this
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
InformationViewController *informationViewController = [[InformationViewController alloc] initWithStyle:UITableViewStylePlain];
informationViewController.title = [[json objectAtIndex: indexPath.row] objectForKey: #"Console"];
informationViewController.Information = [[json objectAtIndex: indexPath.row] objectForKey: #"Model"];
NSLog(#"String is %#", informationViewController.Information);
[self.navigationController pushViewController: informationViewController animated:YES];
}
Hope it helps you...
Whenever i scroll my UITableView, it looks at an array to find out what to fill the next cell with, but the array is empty, causing a crash, and appears to have been released somehow. Here is my code:
.h
#interface HomeViewController : UITableViewController {
NSArray *vaults;
}
#property (retain) NSArray *vaults;
#end
.m
#import "HomeViewController.h"
NSString *vaultsPath;
#implementation HomeViewController
#synthesize vaults;
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
vaultsPath = [NSHomeDirectory() stringByAppendingPathComponent:#"Documents/Vaults"];
NSFileManager *fileManager = [NSFileManager defaultManager];
self.vaults = [fileManager contentsOfDirectoryAtPath:vaultsPath error:nil];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [self.vaults count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
NSString *dictionaryPath = [NSString stringWithFormat:#"%#/%#",
vaultsPath,
[self.vaults objectAtIndex:indexPath.row]]; //Crashes at this line, with the self.vaults array now empty.
NSDictionary *dictionary = [NSDictionary dictionaryWithContentsOfFile:dictionaryPath];
cell = [AHCellCreation createCellWithDictionary:dictionary Cell:cell];
return cell;
}
- (void)dealloc
{
[super dealloc];
[self.vaults release];
}
#end
Any ideas?
My guess is the app crashes when you try to access the value of vaultsPath, which must be deallocated. Because the table view row count is based on the number of elements in the array, the method returning the cells, won't be called if there isn't any element in.
Try to retain the value assigned to vaultsPath, and don't forget to release it later.
I have got an assignment here where I am supposed to
create an application, which copies the all the pasteboard items into
a table, that drills down into a detail view of said pasteboard item
.
Below, I give you my code of the RootViewController.m file. The program does not work and gives me an error of SIGABRT in this line cell.textLabel.text = cellValue;.
Could you tell me please, what could be possibly wrong here and thank you in advance.
#import "RootViewController.h"
#implementation RootViewController
#synthesize detailsViewController;
NSArray* pasteBoardItems;
- (void)viewDidLoad
{
// Get a reference to the system pasteboard
UIPasteboard* pasteBoard = [UIPasteboard generalPasteboard];
NSLog(#"%#", pasteBoard.items);
pasteBoardItems = [pasteBoard.items valueForKey:#"public.utf8-plain-text"];
pasteBoardItems = [pasteBoard.items valueForKey:#"public.item (kUTTypeItem)"];
self.navigationItem.title = #"Pasteboard";
[super viewDidLoad];
}
- (void)dealloc
{
[pasteBoardItems release];
[super dealloc];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [pasteBoardItems count];
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
NSString *cellValue = [pasteBoardItems objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue;
// Configure the cell.
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSUInteger row = [indexPath row];
NSString *rowValue = [pasteBoardItems objectAtIndex:row];
NSString *message = [[NSString alloc] initWithFormat:#"You have selected \"%#\"",rowValue];
if(self.detailsViewController == nil){
DetailsViewController *d = [[DetailsViewController alloc] initWithNibName:#"DetailsViewController" bundle:[NSBundle mainBundle]];
self.detailsViewController = d;
[d release];
}
[self.detailsViewController initWithTextSelected:message];
[self.navigationController pushViewController:self.detailsViewController animated:YES];
}
#end
SIGABRT in most cases means that you want to access released object.
In your case, I suggest to add line [pasteBoardItems retain]; at the end of - (void)viewDidLoad method.