Question

I have a popover screen, with inside it :

• a label, that may or may not appear (title)
• a search bar, that may or may not appear
• a label, that may or may not appear, and has a variable height (help label)
• a scrollview, that may or may not appear, and has a variable height (some infos about the following table)
• a table view

In order to present something nice, in viewDidLoad, I move the various frames to place the objects correctly and not have unused spaces cluttering my popover. Besides, I then resize the table (to take the most place needed), and the popover via contentSizeInPopover (to avoid having a near-empty huge popover). All that resizing seems to work nicely, but I have one big problem : with all that resizing done, some cells of my UITableView become unresponsive. One or two cells, usually the second one, only respond if i tap in their outer corners, but the rest of the cell completely ignore any touches.

I’ve tried everything : moving all to viewWillAppear, letting the autoresize do its job (doesn’t seem to work either), but I still have this problem every time. I’ve found that if I comment the lines involved with changing the frame of the table, or the ones in contentSizeInPopover, the problem stops, but then my view is messed up, so this ins’t a fix.

If anyone could give me something to get out of this mess, that would be awesome.

- (CGFloat)getHeightWithoutTable {
    return LIST_TITLE_HEIGHT + (self.searchBar.hidden ? 0 : LIST_SEARCH_BAR_HEIGHT) + (self.helpLabel.hidden ? 0 : self.helpLabel.frame.size.height + LIST_STD_SPACE) + (self.errorScrollView.hidden ? 0 : self.errorScrollView.frame.size.height + LIST_STD_SPACE);
}

-(void)viewDidLoad {
    [super viewDidLoad];
    self.tableViewOutlet.backgroundView = nil;
    self.originData = [NSMutableArray array];
    self.searchedData = [NSMutableArray array];
    if (self.helper != nil) {
        CGFloat heightOffset = 0;
        // Content
        self.originData = [self.helper getData];
        self.tableData = [NSMutableArray arrayWithArray:self.originData];
        // Title
        NSString *title = [self.helper getPopoverTitle];
        if (title == nil) {
            self.popoverTitle.hidden = YES;
            heightOffset -= LIST_TITLE_HEIGHT;
        } else {
            self.popoverTitle.text = [self.helper getPopoverTitle];
        }
        // Search
        if ([self.originData count]  [self getStdHeight] / 3){
                self.helpLabel.lineBreakMode = UILineBreakModeTailTruncation;
                [self.helpLabel sizeThatFits:CGSizeMake(self.helpLabel.frame.size.width, [self getStdHeight] / 3)];
            }

            heightOffset += (self.helpLabel.frame.size.height - LIST_HELP_STD_HEIGHT);
        }
        // Errors
        if ([self.helper respondsToSelector:@selector(getErrors)]) {
            self.errors = [self.helper getErrors];
        }
        if (self.errors == nil || [self.errors count] == 0) {
            self.errorScrollView.hidden = YES;
            self.errorBg.hidden = YES;
            heightOffset -= LIST_ERROR_STD_HEIGHT + LIST_STD_SPACE;
        } else {
            [self createErrorView];
            heightOffset += (self.errorScrollView.frame.size.height - LIST_ERROR_STD_HEIGHT);
        }
        // Table
        CGFloat previewHeight = LIST_CELL_HEIGHT * [self.tableData count] + LIST_STD_SPACE;
        CGFloat remainingHeight = LIST_MAX_HEIGHT - [self getHeightWithoutTable] - LIST_STD_SPACE;
        CGFloat tableHeight = MIN(previewHeight, remainingHeight);
        CGRect tableFrame = self.tableViewOutlet.frame;
        self.tableViewOutlet.frame = CGRectMake(tableFrame.origin.x, tableFrame.origin.y + heightOffset, LIST_WIDTH, tableHeight);
        // Selected items
        if ([helper getSelectedObject] != nil){
            int index = [self.tableData indexOfObject:[helper getSelectedObject]];
            NSIndexPath *indexPath = [NSIndexPath indexPathForRow:index inSection:0];
            [self.tableViewOutlet scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionTop animated:YES];
        }
    }
}

- (CGSize)contentSizeForViewInPopover {
    if (self.navigationController) {
        return CGSizeMake(LIST_WIDTH, LIST_MAX_HEIGHT);
    } else {
        CGFloat totalHeight = [self getHeightWithoutTable] + self.tableViewOutlet.frame.size.height + LIST_STD_SPACE;
        return CGSizeMake(LIST_WIDTH, totalHeight);
    }
}

(gist if you need some coloring to help you)

An image of the nib :

Answer 1

Found the answer myself : the fact I was using a self-filled UIScrollView next to my UITableView seemed to be the problem. As soon as I replaced the UIScrollView by a proper UITableView, the problem disappeared.