June 2011
Intermediate to advanced
590 pages
19h 31m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Moving Rows
To change the order of rows in a UITableView, you will use another method from the UITableViewDataSource protocol – tableView:moveRowAtIndexPath:toIndexPath:.
To delete a row, you had to send the message deleteRowsAtIndexPaths:withRowAnimation: to the UITableView to confirm the deletion. Moving a row, however, doesn’t require confirmation; the table view moves the row on its own authority and sends the data source the message tableView:moveRowAtIndexPath:toIndexPath: to report the move. You just have to catch this message to update your data source to match the new order.
But before we can implement the data source method, we need to give the PossessionStore a method to change the order of Possessions in its allPossessions array. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.