Join Bill Weinman for an in-depth discussion in this video Application overview, part of iOS SDK and SQLite: Building Data-Driven Apps (2013).
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The application we'll be using for this course is a simple RSS feed reader. I call it BW RSS, and it's available for free in the App Store. This app is designed to be simple for the purpose of demonstrating how to retrieve, parse, store, update, and use data from an external data source on the iOS platform. It's clean, fast, and reliable, and it's not cluttered with lot of features. Here is how it works. The main screen has a list of available feeds. You select one, and it displays a list of items in that feed.
You select an item, and it displays that item in a web view. You may add a feed by pressing the add feed button, this little plus sign up here. You can enter the URL of an RSS Feed here or a web page that has a link tagged in the header with a link to the RSS Feed, this is sometimes called RSS Auto Discovery. Once you've added a feed, you can use it immediately.
You may delete a feed at any time by pressing the Edit button and selecting the red Delete icon of the feed you want to delete, or you may delete an item by swiping it. As new items come in on each feed, older items are automatically deleted. There's a setting available in the Settings App to select the maximum number of items retained by the feed.
BW RSS is a universal app, and it works especially well on the large iPad screen. It uses a split view on the iPad to take a maximum advantage of the iPad's large screen while conforming to Apple's human interface guidelines. As we go through the course you'll see how these techniques were coded and how you can apply them to the applications that you've built for your own purposes and for your clients.
- Prototyping the app
- Coding and working with a testbed
- Creating an Objective-C interface for SQLite
- Designing a database schema
- Creating the view controllers
- Reading and writing to the database
- Parsing the RSS feed with NSXMLParser
- Updating the item view with feed items
- Implementing the pull to refresh gesture for iOS 6
- Creating a universal application with multiple views