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Video: Course overview

Course overview provides you with in-depth training on Developer. Taught by Bill Weinman as part of the iOS SDK and SQLite: Building Data-Driven Apps (2013)
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  1. 8m 29s
    1. Welcome
    2. Exercise files
      2m 17s
    3. Course overview
      3m 4s
    4. Application overview
      2m 11s
  2. 14m 49s
    1. Prototyping in a testbed
      1m 27s
    2. Building the view controller
      3m 45s
    3. Coding the testbed
      7m 56s
    4. Using the testbed
      1m 41s
  3. 37m 49s
    1. Understanding SQLite in iOS
      1m 41s
    2. Creating an Objective-C interface for SQLite
      9m 57s
    3. Testing the BWDB interface in the sandbox
      7m 1s
    4. Designing a database schema
      8m 7s
    5. Supporting the application with a specific interface
      7m 7s
    6. Using C pointers with automatic reference counting (ARC)
      3m 56s
  4. 21m 18s
    1. Understanding the table view
      1m 33s
    2. Creating the view controller
      6m 39s
    3. Reading from the database
      13m 6s
  5. 33m 50s
    1. Understanding the parsing process
      1m 57s
    2. Creating the item view controller
      12m 25s
    3. Reading data from the internet
      5m 30s
    4. Parsing the feed with NSXMLParser
      8m 2s
    5. Updating the item view with the feed items
      5m 56s
  6. 40m 14s
    1. Understanding the modal view
      1m 47s
    2. Constructing the view controller
      15m 5s
    3. Finding a feed link in a web page
      8m 55s
    4. Parsing the feed with NSXMLParser
      5m 4s
    5. Delegating back to the parent view
      6m 11s
    6. Deleting feeds
      3m 12s
  7. 21m 5s
    1. Creating the web view class
      12m 33s
    2. Coding the web view
      5m 25s
    3. Viewing pages in Safari
      3m 7s
  8. 14m 3s
    1. Understanding the iOS preferences system
      1m 23s
    2. Creating the preferences plist in Xcode
      7m 20s
    3. Reading preferences in your application
      5m 20s
  9. 6m 15s
    1. Adding pull-to-refresh functionality
      2m 34s
    2. Implementing the pull-to-refresh gesture for iOS 6
      3m 41s
  10. 27m 1s
    1. Understanding split view
      1m 4s
    2. Coding the table views
      11m 24s
    3. Implementing the iPad detail view
      6m 35s
    4. Implementing the iPad modal view
      7m 58s
  11. 35s
    1. Goodbye

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Course overview
Video Duration: 3m 4s3h 45m Intermediate Jan 16, 2013

Viewers: in countries Watching now:

Course overview provides you with in-depth training on Developer. Taught by Bill Weinman as part of the iOS SDK and SQLite: Building Data-Driven Apps (2013)

View Course Description

The iOS software development kit (SDK) includes the popular SQLite library, a lightweight yet powerful relational database engine that is easily embedded into an application. In this course, Bill Weinman teaches you how to build an RSS reader for iOS devices, integrating XML data and a streamlined interface. He explains how to use the SQLite database, display information in a table view, code view controllers, and create a preferences pane for your app. The resulting application is optimized for all iPhone and iPad displays.

Topics include:
  • 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
Bill Weinman

Course overview

iOS is capable of supporting many kinds of applications, games, utilities, social networking, entertainment, news, business, education. What do all of these applications have in common? They all use data. The intent of this course is to show you how to build a data-driven application that uses an external source of data. In order to best demonstrate the techniques you'll need to accomplish this, I have built a simple data-driven application in the form of an RSS news reader.

Many applications drive their content or even their navigation on external data, these are called data-driven applications. The application presented here is a simple example of a data-driven application. The techniques you learn here will apply to many applications in many different categories. Data sources today are commonly in an XML format and iOS provides native support for XML. In this application we'll be reading RSS feeds as RSS feeds are typical of many other types of XML data feeds. The XML portion techniques covered here will apply to many different XML data sources.

After receiving and parsing an XML feed, you will often want to store that data on the device. The native format for data storage in iOS is provided by the SQLite database engine. SQLite is a powerful database that is small, fast, and uses a single file for storage. SQLite is also supported on many other mobile platforms, including Android, Symbian, WebOS, and others. It has even been ported to Windows Mobile. The techniques you learn here for supporting SQLite should be usable from many of your mobile projects.

Once you have your data, you'll want to display that data on the screen. iOS provides a native table view display model, which is commonly used to display data from a database. Table View is very powerful and flexible, and you will likely use Table View a lot for you data-driven applications. Often, external data sources provide links to web pages or other dynamic data. iOS provides a native web view for displaying web pages with all the power of the internal Safari browser. RSS feeds typically link to a web page for their associated content.

These days iOS is more than just the iPhone. So you'll want to learn how to make a universal application that supports iPhone, iPad, and Retina Displays, leveraging your code to take advantage of these platforms while using a single code base. I will also show you how to use the iPad's split view controller providing side by side a Table View for selecting from the database on the left and a web view for displaying content on the right. This is all designed to give you the tools you need to use data in your applications, reading data from an external data source, storing data in a local database on the device, and using data to provide the necessary user experience for your audience.

Find answers to the most frequently asked questions about iOS SDK and SQLite: Building Data-Driven Apps (2013) .

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Q: Why is the RSSDB library in the exercise files different than the one in the videos?

A: The RSSDB library had to be updated to work around a bug in the iOS 7 SDK.

There is a bug in the iOS 7 SDK that prevents the BWDB fast enumeration implementation from working on a device. The symptom is code that runs fine on the emulator, but not on a device. iOS devices use an ARM processor, while the emulator runs on your Mac's Intel processor. This points to the LLVM ARM code generator as the source of the bug. Because the bug appears to be in the LLVM compiler, it may be some time before it is fixed.

As a workaround we have changed the getFeedIDs and getItemIDs methods in the RSSDB library so they don't use Objective C fast enumeration. 

Please note that this same bug also affects some of the BWDB testbed code in Chapter 2. The result is that it will run on the emulator but not on a device.

Q: After upgrading to Xcode 5.1 I get an error that says:

"Used type va_list (aka_builtin_va_list) where arithmetic or pointer type is required"

A: Please download the exercise files again to get the latest version of the BWDB library.
Q: I'm using Xcode 6. Why am I getting error messages with the exercise files?
A: A lot has changed in iOS since this course was released. The author is in the process of rewriting the code and updating the course for iOS 8. In the meantime he has prepared a version of the app that works in iOS 8 and Xcode 6. Download it here:
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