ios - Obj-C-显示对应数组中每个单元格的正确数据

Question

在我的tableView中，我试图为其中swapvalue等于0的每个字典显示某种类型的单元格。也就是说，出于某种原因，下面的代码仅获取数组中第一个字典的值(又名:，第一个字典中的swapvalue的值为0，因此，我的表显示所有单元格，就好像后面的数组也具有swapvalue一样-即使它们没有)。如何更改此设置，以便每个单元格都从其对应的字典中获取swapvalue？我怀疑它与indexPath.row有关，但是我不确定如何解决此问题？

 - (int)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
    {


        if ([self.messageDataFriends count] > 0 ) {


            NSDictionary *userDictInfo = (NSDictionary*) [NSKeyedUnarchiver unarchiveObjectWithData:[[NSUserDefaults standardUserDefaults] objectForKey:@"diosSession"]];


            DIOSSession *session = [DIOSSession sharedSession];
            [session setUser:userDictInfo];


            [session user];


            NSString *targetedUser = [self.messageDataFriends objectForKey:@"uid2"];

            NSString *myID = [session user][@"user"][@"uid"];


            NSPredicate *p1 = [NSPredicate predicateWithFormat:@"uid contains[cd] %@", targetedUser];

            NSPredicate *p2 = [NSPredicate predicateWithFormat:@"targetuser contains[cd] %@", myID];

            NSPredicate *p3 = [NSPredicate predicateWithFormat:@"uid contains[cd] %@", myID];

            NSPredicate *p4 = [NSPredicate predicateWithFormat:@"targetuser contains[cd] %@", targetedUser];

            NSCompoundPredicate *pIntermediary1 = [NSCompoundPredicate andPredicateWithSubpredicates:@[p1, p2,]];

            NSCompoundPredicate * pIntermediary2 = [NSCompoundPredicate andPredicateWithSubpredicates:@[p3, p4,]];

            NSCompoundPredicate *pFinal = [NSCompoundPredicate orPredicateWithSubpredicates:@[pIntermediary1, pIntermediary2]];

            NSArray *filtered = [self.messages filteredArrayUsingPredicate:pFinal];


        return [filtered count];

            }


        else  {


            NSDictionary *userDictInfo = (NSDictionary*) [NSKeyedUnarchiver unarchiveObjectWithData:[[NSUserDefaults standardUserDefaults] objectForKey:@"diosSession"]];

            DIOSSession *session = [DIOSSession sharedSession];
            [session setUser:userDictInfo];


            [session user];

            NSString *targetedUser = [self.messageData objectForKey:@"uid"];

            NSString *myID = [session user][@"user"][@"uid"];


            NSPredicate *p1 = [NSPredicate predicateWithFormat:@"uid contains[cd] %@", targetedUser];

            NSPredicate *p2 = [NSPredicate predicateWithFormat:@"targetuser contains[cd] %@", myID];

            NSPredicate *p3 = [NSPredicate predicateWithFormat:@"uid contains[cd] %@", myID];

            NSPredicate *p4 = [NSPredicate predicateWithFormat:@"targetuser contains[cd] %@", targetedUser];

            NSCompoundPredicate *pIntermediary1 = [NSCompoundPredicate andPredicateWithSubpredicates:@[p1, p2,]];

            NSCompoundPredicate * pIntermediary2 = [NSCompoundPredicate andPredicateWithSubpredicates:@[p3, p4,]];

            NSCompoundPredicate *pFinal = [NSCompoundPredicate orPredicateWithSubpredicates:@[pIntermediary1, pIntermediary2]];

            NSArray *filtered = [self.messages filteredArrayUsingPredicate:pFinal];


          return [filtered count];


         }
    }



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

                NSDictionary *data = self.messages[indexPath.section];

                id swapvalue = data[@"swapvalue"];
                NSLog(@"SWAP VALUE %@", swapvalue);

            if ([neighbours count] > 0 && [swapvalue isEqualToString: @"0"]) {

 static NSString *ChatTableIdentifier2 = @"SwapDetailTableViewCell";


        SwapDetailTableViewCell *cell = (SwapDetailTableViewCell *)[tableView dequeueReusableCellWithIdentifier:ChatTableIdentifier2 forIndexPath:indexPath];


          NSString *targetedUser = [self.messageData objectForKey:@"uid"];


          NSDictionary *userDictInfo = (NSDictionary*) [NSKeyedUnarchiver unarchiveObjectWithData:[[NSUserDefaults standardUserDefaults] objectForKey:@"diosSession"]];

          DIOSSession *session = [DIOSSession sharedSession];
          [session setUser:userDictInfo];


          [session user];


          NSString *myID = [session user][@"user"][@"uid"];

          NSPredicate *p1 = [NSPredicate predicateWithFormat:@"uid contains[cd] %@", targetedUser];

         NSPredicate *p2 = [NSPredicate predicateWithFormat:@"targetuser contains[cd] %@", myID];

          NSPredicate *p3 = [NSPredicate predicateWithFormat:@"uid contains[cd] %@", myID];

          NSPredicate *p4 = [NSPredicate predicateWithFormat:@"targetuser contains[cd] %@", targetedUser];

          NSCompoundPredicate *pIntermediary1 = [NSCompoundPredicate andPredicateWithSubpredicates:@[p1, p2,]];

          NSCompoundPredicate * pIntermediary2 = [NSCompoundPredicate andPredicateWithSubpredicates:@[p3, p4,]];

          NSCompoundPredicate *pFinal = [NSCompoundPredicate orPredicateWithSubpredicates:@[pIntermediary1, pIntermediary2]];

         NSArray *filtered = [self.messages filteredArrayUsingPredicate:pFinal];


          NSLog(@"WAT IS HERE 2 %@", filtered);

          NSString *userName = filtered[indexPath.row][@"first name"];
          cell.sendingUser.text = userName;

          NSString *messageBody = filtered[indexPath.row][@"body"];
          cell.messageDisplayed.text = messageBody;

          NSString *timeReceived = filtered[indexPath.row][@"published at"];
          cell.timeStamp.text = timeReceived;

      }

        return cell;

    }

Answer 1

@Duncan对一个数组是正确的。您有一组字典。
现在您还需要查看func tableView(UITableView, numberOfRowsInSection: Int)和func numberOfSections(in: UITableView)如果您的数组中的项目数为numberOfSections ==，则indexpath.row将始终为0。我怀疑这可能是问题所在。