I have a UICollectionView that populates with data from my DB. The user selects various cells and presses a button to save the info. I am unable to get the data to post. What am I doing wrong?
#pragma mark <UICollectionViewDataSource> - (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView { NSLog(@"itemPresets --> %lu",(unsigned long)[self.itemPresets count]); return [self.itemPresets count]; } - (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section { NSLog(@"itemPresets[section] --> %lu",(unsigned long)[self.itemPresets[section] count]); return [self.itemPresets[section] count]; } - (UICollectionReusableView*)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath { UICollectionReusableView * view = nil; if ([kind isEqualToString:UICollectionElementKindSectionHeader]) { ItemSectionHeaderView *header = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:NSStringFromClass([ItemSectionHeaderView class]) forIndexPath:indexPath]; header.captionLabel.text = self.headTitleArray[indexPath.section]; view = header; } return view; } - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath { UICollectionViewCell *cell; ItemCell *aCell = (ItemCell *)[collectionView dequeueReusableCellWithReuseIdentifier:@"itemCell" forIndexPath:indexPath]; if (indexPath.section == 2) { aCell.label.backgroundColor = [Helper colorWithSetting:(self.itemPresets[indexPath.section][indexPath.row])]; aCell.label.text = @""; } else { aCell.label.text = self.itemPresets[indexPath.section][indexPath.row]; aCell.label.textAlignment = NSTextAlignmentCenter; } cell = aCell; cell.selectedBackgroundView.backgroundColor = [UIColor darkGrayColor]; return cell; } - (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath { CGSize size; if (indexPath.section == 6) { size = CGSizeMake(140, 30); } else if (indexPath.section <= 5 && indexPath.section >= 0) { size = CGSizeMake(80, 30); } else { size = CGSizeMake(self.collectionView.frame.size.width, 150); } return size; } #pragma mark <UICollectionViewDelegate> - (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath { NSArray * selectedRows = self.collectionView.indexPathsForSelectedItems; for (NSIndexPath * selectedRow in selectedRows) { if ((selectedRow.section == indexPath.section) && (selectedRow.row != indexPath.row)) { [self.collectionView deselectItemAtIndexPath:selectedRow animated:NO]; } } switch (indexPath.section) { case 0: self.setting.itemKeyA = self.itemPresets[indexPath.section][indexPath.row]; NSLog(@“ValueA in case -----> %@",self.itemPresets[indexPath.section][indexPath.row]); break; case 1: self.setting.itemKeyB = self.itemPresets[indexPath.section][indexPath.row]; NSLog(@“ValueB in case -----> %@",self.itemPresets[indexPath.section][indexPath.row]); break; case 2: self.setting.itemKeyC = self.itemPresets[indexPath.section][indexPath.row]; NSLog(@“ValueC in case -----> %@",self.itemPresets[indexPath.section][indexPath.row]); break; default: break; } NSLog(@“ValueA in set -----> %@",self.setting.itemKeyA); NSLog(@“ValueB in set -----> %@",self.setting.itemKeyB); NSLog(@“ValueC in set -----> %@",self.setting.itemKeyC); } # pragma mark - sync with Parse - (void)register { if (!self.setting.KeyA || !self.setting.KeyB || !self.setting.KeyC) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@" Request Incomplete" message:@"Please select all the necessary fields." delegate:self cancelButtonTitle:NSLocalizedString(@"Ok", @"Ok") otherButtonTitles:nil, nil]; [alert show]; return; } PFObject *postActivity = [PFObject objectWithClassName:@"Activity"]; [postActivity setObject:@“Apply" forKey:@“activityType"]; [postActivity setObject:[PFUser currentUser] forKey:@"fromUser"]; // Set fromUser [postActivity saveInBackground]; PFObject *post = [PFObject objectWithClassName:@“Apply"]; [post setObject:[PFUser currentUser] forKey:@"User"]; // Set fromUser NSLog(@“keyA -----> %@",self.setting.KeyA); NSLog(@“keyB -----> %@“,self.setting.KeyB); NSLog(@“keyC -----> %@",self.setting.KeyC); [post setObject:self.setting.KeyA forKey:@“keyA"]; [post setObject:self.setting.KeyB forKey:@“keyB"]; [post setObject:self.setting.KeyC forKey:@“keyC"]; self.HUD = [[MBProgressHUD alloc] initWithView:self.view]; [self.view addSubview:self.HUD]; // Set determinate mode self.HUD.mode = MBProgressHUDModeIndeterminate; self.HUD.delegate = self; self.HUD.labelText = @"Applying ..."; self.HUD.dimBackground = YES; [self.HUD show:YES]; [post saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) { if (succeeded) { [self.HUD hide:YES]; [self performSegueWithIdentifier:@"unwindItemCollectionViewController" sender:self]; } }]; }
The logs:
2015-10-15 14:12:10.530 x itemPresets --> 0 2015-10-15 14:12:10.530 x itemPresets --> 0 2015-10-15 14:12:10.674 x itemPresets --> 3 2015-10-15 14:12:10.674 x itemPresets[section] --> 9 2015-10-15 14:12:10.675 x itemPresets[section] --> 6 2015-10-15 14:12:10.675 x itemPresets[section] --> 10not sure why I get 0 twice first, but the above NSLogs are correct
2015-10-15 14:12:11.434 x ValueA in case -----> Correct / Selected value 2015-10-15 14:12:11.435 x ValueA in set -----> (null) 2015-10-15 14:12:11.435 x ValueB in set -----> (null) 2015-10-15 14:12:11.436 x ValueC in set -----> (null) 2015-10-15 14:12:12.217 x ValueB in case-----> Correct / Selected value 2015-10-15 14:12:12.217 x ValueA in set -----> (null) 2015-10-15 14:12:12.218 x ValueB in set -----> (null) 2015-10-15 14:12:12.218 x ValueC in set -----> (null) 2015-10-15 14:12:14.516 x ValueC in case-----> Correct / Selected value 2015-10-15 14:12:14.517 x ValueA in set -----> (null) 2015-10-15 14:12:14.517 x ValueB in set -----> (null) 2015-10-15 14:12:14.518 x ValueC in set -----> (null)As you can see from the NSLogs above, the value is getting selected initially and logs correctly but it is not retained (tho it stays highlighted) so that when the user presses the button and calls the register method the values are all null. The information the user has provided can not be saves. The app triggers an alert (or crashes is the check for nil is removed). PostActivity is working and saves as expected to database, but Post for the class Apply breaks.
I've tried a variety of fixes. Errors I get (again when check is commected out) include:
int main(int argc, char * argv[]) { @autoreleasepool { return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); } }
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Can't use nil for keys or values on PFObject. Use NSNull for values.'
I've tried UICollectionView datasource methods not getting called, but are being set in the init
Also changed property of itemCell and itemKeyA, etc to strong or retain (and nonatomic)
I've tried reconnecting the UIOutlet / storyboard
Is this a nib / xib issue? I admit to not fulling understanding how to ensure that's set up correctly.
Thanks
