L'estensione di condivisione non mostra dati - ios

Question

Sto tentando di creare un'estensione di condivisione. Li sto mostrando in vista tabella. I miei dati stanno arrivando ma non sono in grado di vedere. Inoltre si blocca (come se avessimo dei dati e dei popup ma non li mostrassimo).

Ecco il mio codice di esempio

// 
// ShareViewController.m 
// myAppShare 
// 
// 
// 
// 

#import "ShareViewController.h" 
#import "MBProgressHUD.h" 

@import MobileCoreServices; 

static NSString *const AppGroupId = @"group.tag.BiblioHive7"; 

@implementation ShareViewController 
{ 
    NSArray *arrayCategory; 
    __weak IBOutlet UITextField *textFieldCategoryName; 
    __weak IBOutlet UIButton *btnPost; 
    __weak IBOutlet UIBarButtonItem *btnCancel; 
    __weak IBOutlet UINavigationItem *nayTitle; 
    __weak IBOutlet UINavigationBar *navBar; 
} 
-(void)viewDidLoad 
{ 
    sharedUserDefaults = [[NSUserDefaults alloc] initWithSuiteName:AppGroupId]; 
    [sharedUserDefaults setObject:@"hello" forKey:@"hello"]; 

    NSString *userId= [sharedUserDefaults objectForKey:@"userId"]; 

    NSLog(@"%@", [[sharedUserDefaults objectForKey:@"categories"] class]); 
    NSError* error; 
    [self didSelectPost]; 
    if (userId==nil || [userId isEqualToString:@""]) 
    { 
     [self hideBackground]; 
     self.view.hidden= YES; 

     UIAlertController * alert= [UIAlertController 
             alertControllerWithTitle:@"Error" 
             message:@"Please login into myApp" 
             preferredStyle:UIAlertControllerStyleAlert]; 

     UIAlertAction *defaultAction = [UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) { 
      [self hideExtentionView]; 

     }]; 

     [alert addAction:defaultAction]; 
     [self presentViewController:alert animated:YES completion:nil]; 

    } 
    else 
    { 
    self.view.hidden= NO; 

    id jsonObject = [NSJSONSerialization JSONObjectWithData:[sharedUserDefaults objectForKey:@"categories"] options: NSJSONReadingMutableContainers error:&error]; 
    arrayCategory= [NSArray arrayWithArray:jsonObject]; 

    // here i am able to print object 
    NSLog(@"%@", [arrayCategory class]); 

    NSMutableArray *cityArray = [[NSMutableArray alloc] init]; 
    NSMutableArray *testFeeds = [NSJSONSerialization JSONObjectWithData: [sharedUserDefaults objectForKey:@"categories"] options:NSJSONReadingMutableContainers error:nil]; 
    [cityArray addObjectsFromArray:testFeeds]; 
    NSLog(@"%lu", (unsigned long)[cityArray count]); 

// [self.tableViewmyApp reloadData]; 
    // here you must have to provide your app group id that you already created 
} 
} 


-(void) hideBackground 
{ 
    [self.view setBackgroundColor:[UIColor clearColor]]; 
    [self.tableViewmyApp setBackgroundColor:[UIColor clearColor]]; 
    [textFieldCategoryName setBackgroundColor:[UIColor clearColor]]; 
    [nayTitle setTitle:@""]; 
    [btnPost setHidden:YES]; 
    [navBar setHidden:YES]; 
} 

- (BOOL)isContentValid { 
    // Do validation of contentText and/or NSExtensionContext attachments here 
    return YES; 
} 

- (void)didSelectPost { 

    // This is called after the user selects Post. Do the upload of contentText and/or NSExtensionContext attachments. 

    // Inform the host that we're done, so it un-blocks its UI. Note: Alternatively you could call super's -didSelectPost, which will similarly complete the extension context. 


    inputItem = self.extensionContext.inputItems.firstObject; 
    NSItemProvider *urlItemProvider = [[inputItem.userInfo valueForKey:NSExtensionItemAttachmentsKey] objectAtIndex:0]; 

    if ([urlItemProvider hasItemConformingToTypeIdentifier:(__bridge NSString *)kUTTypeURL]) 
    { 
     [urlItemProvider loadItemForTypeIdentifier:(__bridge NSString *)kUTTypeURL options:nil completionHandler:^(NSURL *url, NSError *error) 
     { 
      if (error) 
      { 
       NSLog(@"Error occured"); 
      } 
      else 
      { 
       if ([sharedUserDefaults objectForKey:@"userId"]==nil) 
       { 
        UIAlertController * alert= [UIAlertController 
                alertControllerWithTitle:@"Error" 
                message:@"You must be logged In to share" 
                preferredStyle:UIAlertControllerStyleAlert]; 

        UIAlertAction* ok = [UIAlertAction 
              actionWithTitle:@"OK" 
              style:UIAlertActionStyleDefault 
              handler:nil]; 

        [alert addAction:ok]; 
        [self presentViewController:alert animated:YES completion:nil]; 

        return; 

       } 


       NSMutableArray *previousUrlsArray = [[NSMutableArray alloc]initWithArray:[sharedUserDefaults objectForKey:@"urlsArray"]]; 
       if (previousUrlsArray==nil) 
       { 
        previousUrlsArray =[[NSMutableArray alloc]init]; 

       } 
       [previousUrlsArray addObject:url.absoluteString]; 
       NSMutableDictionary *dict= [[NSMutableDictionary alloc]init]; 
       [dict setObject:previousUrlsArray forKey:@"urls"]; 
       [sharedUserDefaults setObject:dict forKey:@"urlsDictionary"]; 

       [sharedUserDefaults setObject:previousUrlsArray forKey:@"urlsArray"]; 
       // [sharedUserDefaults synchronize]; 
       [sharedUserDefaults setObject:url.absoluteString forKey:@"siteURL"]; 

       [sharedUserDefaults setObject:[NSString stringWithFormat:@"%@",url.absoluteString] forKey:@"sURL"]; 
       NSLog(@"%@",[sharedUserDefaults objectForKey:@"sURL"]); 

//     NSMutableArray *arrSites; 
//     if ([sharedUserDefaults valueForKey:@"SharedExtension"]) 
//      arrSites = [sharedUserDefaults valueForKey:@"SharedExtension"]; 
//     else 
//      arrSites = [[NSMutableArray alloc] init]; 
//     NSDictionary *dictSite = [NSDictionary dictionaryWithObjectsAndKeys:self.contentText, @"Text", url.absoluteString, @"URL",nil]; 
//     [arrSites addObject:dictSite]; 
//     [sharedUserDefaults setObject:arrSites forKey:@"SharedExtension"]; 
//     [sharedUserDefaults synchronize]; 

//     UIAlertController * alert= [UIAlertController 
//            alertControllerWithTitle:@"Success" 
//            message:@"Posted Successfully." 
//            preferredStyle:UIAlertControllerStyleAlert]; 
//     
//     UIAlertAction* ok = [UIAlertAction 
//          actionWithTitle:@"OK" 
//          style:UIAlertActionStyleDefault 
//          handler:^(UIAlertAction * action) 
//          { 
//           [UIView animateWithDuration:0.20 animations:^ 
//           { 
//            self.view.transform = CGAffineTransformMakeTranslation(0, self.view.frame.size.height); 
//           } 
//               completion:^(BOOL finished) 
//           { 
//            [self.extensionContext completeRequestReturningItems:nil completionHandler:nil]; 
//           }]; 
//          }]; 
//     
//     [alert addAction:ok]; 
//     [self presentViewController:alert animated:YES completion:nil]; 
      } 
     }]; 
    } 
} 



- (NSArray *)configurationItems { 
    // To add configuration options via table cells at the bottom of the sheet, return an array of SLComposeSheetConfigurationItem here. 
    return @[]; 
} 

-(UITableViewCell*) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"MyIdentifier"]; 

    /* 
    * If the cell is nil it means no cell was available for reuse and that we should 
    * create a new one. 
    */ 
    if (cell == nil) { 

     /* 
     * Actually create a new cell (with an identifier so that it can be dequeued). 
     */ 

     cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"MyIdentifier"] ; 

     cell.selectionStyle = UITableViewCellSelectionStyleDefault; 

    } 
    cell.textLabel.text=[[arrayCategory objectAtIndex:indexPath.row] valueForKey:@"category_name"]; 
    return cell; 
} 


-(NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{ 
    return [arrayCategory count]; 
} 

-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    [self saveInUserDefaultsWithCategoryName:[[arrayCategory objectAtIndex:indexPath.row] valueForKey:@"category_name"] andId:[[[arrayCategory objectAtIndex:indexPath.row] valueForKey:@"id"] integerValue]]; 

} 
- (IBAction)postBtnTapped:(id)sender { 

    [self saveInUserDefaultsWithCategoryName:textFieldCategoryName.text andId:-1]; 

} 

-(void) saveInUserDefaultsWithCategoryName : (NSString*) categoryName andId : (NSInteger) categoryId 
{ 

    if ([categoryName stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]].length==0) 
    { 
     UIAlertController* alert = [UIAlertController alertControllerWithTitle:@"Please choose a category or create a new one " 
                     message:@"" 
                   preferredStyle:UIAlertControllerStyleAlert]; 
     UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleCancel handler:nil]; 
     [alert addAction:okAction]; 

     [self presentViewController:alert animated:YES completion:nil]; 

     return; 
    } 




    NSString *stringId=[sharedUserDefaults objectForKey:@"id"]; 

    ([stringId length]>0) ? [sharedUserDefaults setObject:[NSString stringWithFormat:@"%@,%ld",stringId, (long)categoryId] forKey:@"id"] : [sharedUserDefaults setObject:[NSString stringWithFormat:@"%ld", (long)categoryId] forKey:@"id"]; 
    NSLog(@"%@", [sharedUserDefaults objectForKey:@"id"]); 

    NSString *stringCategoryName=[sharedUserDefaults objectForKey:@"category_name"]; 

    ([stringCategoryName length]>0) ? [sharedUserDefaults setObject:[NSString stringWithFormat:@"%@,%@",stringCategoryName, categoryName] forKey:@"category_name"] : [sharedUserDefaults setObject:[NSString stringWithFormat:@"%@",categoryName] forKey:@"category_name"]; 
    NSLog(@"%@", [sharedUserDefaults objectForKey:@"category_name"]); 

    NSString *stringURL=[sharedUserDefaults objectForKey:@"URL"]; 

    ([stringURL length]>0) ? [sharedUserDefaults setObject:[NSString stringWithFormat:@"%@,%@",stringURL, [sharedUserDefaults objectForKey:@"sURL"]] forKey:@"URL"] : [sharedUserDefaults setObject:[NSString stringWithFormat:@"%@",[sharedUserDefaults objectForKey:@"sURL"]] forKey:@"URL"]; 
    NSLog(@"%@", [sharedUserDefaults objectForKey:@"URL"]); 




    NSDictionary *categoryDictionary = [NSDictionary dictionaryWithObjectsAndKeys:categoryName,@"categoryName", nil]; 
    NSArray *categoryArray = [NSArray arrayWithObject:categoryDictionary]; 


    NSMutableDictionary *mainDictionary = [[NSMutableDictionary alloc]init]; 
    [mainDictionary setObject:categoryArray forKey:@"categories"]; 
    [mainDictionary setObject:@"0" forKey:@"categoryType"]; 
    [mainDictionary setObject:[sharedUserDefaults objectForKey:@"siteURL"] forKey:@"url"]; 
    [mainDictionary setObject:[sharedUserDefaults objectForKey:@"access_token"] forKey:@"access_token"]; 

    AppServices *appServices = [AppServices sharedInstance]; 
    appServices.delegate = self; 
    [appServices postCategoriesOnServer:mainDictionary withSucessBlock:nil withfailureBlock:nil]; 
    [MBProgressHUD showHUDAddedTo:self.view animated:YES]; 
    // [self enableUserInteraction:NO]; 
    // [[AppServices sharedInstance] sendData:nil withSucessBlock:nil withfailureBlock:nil]; 


// [sharedUserDefaults setObject:[NSNumber numberWithInteger:categoryId] forKey:@"id"]; 
// [sharedUserDefaults setObject:categoryName forKey:@"category_name"]; 




// NSMutableDictionary *dict=[[NSMutableDictionary alloc] init]; 
//  
// [dict setObject:categoryName forKey:@"category_name"]; 
// [dict setObject:[NSNumber numberWithInteger:categoryId] forKey:@"id"]; 
// NSLog(@"%@", [sharedUserDefaults objectForKey:@"siteURL"]); 
// 
// [dict setObject:[sharedUserDefaults objectForKey:@"siteURL"] forKey:@"siteurl"]; 
//  
//  
// [sharedUserDefaults setObject:[self dictToJson:dict] forKey:@"categorydictionary"]; 
} 

-(NSString *)dictToJson:(NSDictionary *)dict 
{ 
    NSError *error; 
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject: dict 
                 options:(NSJSONWritingOptions) (/* DISABLES CODE */ (YES) ? NSJSONReadingMutableContainers : 0) 
                 error:&error]; 

    if (! jsonData) { 
     NSLog(@"bv_jsonStringWithPrettyPrint: error: %@", error.localizedDescription); 
     return @"{}"; 
    } else { 
     return [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding]; 
    } 

} 


- (IBAction)cancelBtnTapped:(id)sender { 
    [self hideExtentionView]; 
} 

-(void) hideExtentionView 
{ 
    [self.extensionContext completeRequestReturningItems: nil completionHandler: nil]; 

} 

-(void) showAlertViewWithMessage:(NSString *)message 
{ 
    UIAlertController* alert = [UIAlertController alertControllerWithTitle:nil 
                    message:message 
                  preferredStyle:UIAlertControllerStyleAlert]; 
    UIAlertAction *defaultAction = [UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) { 
     [self hideExtentionView]; 

    }]; 

    [alert addAction:defaultAction]; 
    [self presentViewController:alert animated:YES completion:nil]; 

} 

-(void)enableUserInteraction:(BOOL)enable 
{ 
    [self.view setUserInteractionEnabled:enable]; 
} 

#pragma mark- AppServicesDelegate methods 
-(void)showMessage:(NSString *)message 
{ 
    [MBProgressHUD hideHUDForView:self.view animated:YES]; 
    // [self enableUserInteraction:YES]; 
    [self showAlertViewWithMessage:message]; 
} 



@end 

Answer 1

Il tuo problema è che si desidera popolare textLabel cella di una tabella con un oggetto array che non viene salvata con valore della chiave. In

-(UITableViewCell*) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 

metodo si tenta di prendere un oggetto che non è ancora salvato su quel tasto.

cell.textLabel.text=[[arrayCategory objectAtIndex:indexPath.row] valueForKey:@"category_name"]; 

e in

-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    [self saveInUserDefaultsWithCategoryName:[[arrayCategory objectAtIndex:indexPath.row] valueForKey:@"category_name"] andId:[[[arrayCategory objectAtIndex:indexPath.row] valueForKey:@"id"] integerValue]]; 
} 

metodo, qui si salva l'oggetto.

Questa è una cattiva pratica.