Grouped table view empty section

I've read every answer available for this question that I could find, including this answer here on SO: link text

The best known example of what I am trying to accomplish would probably look like the detail screen of the Contacts app. Some contacts have a phone number and email, others have multiple phone numbers but no email etc. My data is coming in from a remote server and some people records may have a phone number, others may have 3 email addresses but no phone, others may have 2 phone numbers and 2 email addresses etc.

Any suggestio开发者_运维百科ns on how to handle this, again using Contacts as an example (grouped table view with variable number of sections and variable rows per section). In the link I posted above, one of the answers that makes sense it to simply use deleteSections:withRowAnimation: but I am unclear how I would go about implementing that in this scenario since I am not using commitEditingStyle, I just want to 'remove' sections on the fly that are empty.

Thank you for your time.

Why do you want to build empty cells, just to remove them again? Write a class that formats your retrieved data into a data object that your UITableViewController understands, say, a SectionDataObject.

First off define some sections, e.g. an email section, a phone number section etc. Let your SectionDataObject hold an array for each of these section categories, an emailsArray, a phoneNumbersArray etc.

Now in all the delegate methods you just reference the different arrays of the SectionDataObject. It is no longer an issue if a user has got 15 emails and no phone number, the emailsArray will return count 15 and the phoneNumberArray will return count 0.

Just return 0 from - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section for the sections that are empty.