How can I loop through UITableView's cells?

Question

I have n sections (known amount) and X rows in each section (unknown amount. Each row has a UITextField. When the user taps the \"Done\" button I want to iterate through eac

Answer 1

Since iOS may recycle tableView cells which are off-screen, you have to handle tableView one cell at a time:

NSIndexPath *indexPath;
CustomTableViewCell *cell;

NSInteger sectionCount = [tableView numberOfSections];
for (NSInteger section = 0; section < sectionCount; section++) {
    NSInteger rowCount = [tableView numberOfRowsInSection:section];
    for (NSInteger row = 0; row < rowCount; row++) {
        indexPath = [NSIndexPath indexPathForRow:row inSection:section];
        cell = [tableView cellForRowAtIndexPath:indexPath];
        NSLog(@"Section %@ row %@: %@", @(section), @(row), cell.textField.text);
    }
}

You can collect an NSArray of all cells beforehands ONLY, when the whole list is visible. In such case, use [tableView visibleCells] to be safe.