iOS in Practice
The direct path to getting your app into the App Store … hands-on and real-world.
iOS in Practice is a hands-on guide with 98 specific techniques to help solve the specific problems you'll encounter over and over as you work on your iPhone and iPad apps. You'll dig into the practical nuts and bolts of applying views, view controllers, table views and cells, audio, images, graphics, file structure—and more. Examples written for iOS 6.
Table of Contents takes you straight to the bookdetailed table of contents
preface
acknowledgments
about this book
about the cover illustration
Part 1 Getting started
1. Getting started with iOS development
1.1. The iOS development environment
1.2. Using Xcode
1.3. A quick Hello World app
1.4. Summary
2. Creating an iOS application
2.1. Source code files
2.2. Adding a button to your app
2.3. Connecting your button to an action
2.4. Connecting your label as an outlet
2.5. Implementing your button action
2.6. Delegation
2.7. Summary
Part 2 Putting iOS into practice
3. Using view controllers and images in PicDecor
3.1. UI design concepts
3.2. Creating view controllers and other widgets
Technique 1 Designing a view controller with IB
Technique 2 Adding an ImageView and toolbar to a view
Technique 3 Adding buttons to a view
3.3. Developing actions and outlets
Technique 4 Declaring actions and outlets in Xcode
Technique 5 Connecting actions and outlets to code
3.4. Using the camera/photo album
Technique 6 Adding camera/photo album access
Technique 7 Presenting a view controller modally
Technique 8 Dismissing a modally displayed view controller
3.5. Displaying and handling images
Technique 9 Displaying selected images
Technique 10 Detecting a device without a camera
3.6. Providing email capabilities
Technique 11 Adding in-app email
Technique 12 Scaling an image for email
Technique 13 Using the activity indicator
3.7. Summary
4. Accessing the address book/contacts in Dial4
4.1. Creating a master-detail application with a table view
Technique 14 Creating a master-detail application
4.2. Presenting data using a table view
Technique 15 Displaying data in a table view
Technique 16 Handling table view cell selection
4.3. Accessing the address book
Technique 17 Retrieving the address book entries
Technique 18 Obtaining address book image property
Technique 19 Obtaining grouped properties from the address book
Technique 20 Making a call
Technique 21 Displaying address book record details
4.4. Managing table data
Technique 22 Deleting and rearranging table view rows
Technique 23 Filtering displayed table view data
4.5. Summary
5. MapKit and the camera in WhereIsMyCar
5.1. Using maps with the user’s location
Technique 24 Adding a MapView to a project
Technique 25 Centering and zooming a MapView
Technique 26 Finding the user’s location via CoreLocation
5.2. Displaying details on MapView locations and storing user’s notes
Technique 27 Displaying MapView pins
Technique 28 Storing and retrieving the user’s location
Technique 29 Reverse geocoding
Technique 30 Adding pin callouts
Technique 31 Typing and storing user’s note
5.3. Storing, retrieving, and displaying camera images
Technique 32 Adding a camera control
Technique 33 Receiving and storing the picture
Technique 34 Displaying a picture
5.4. Summary
6. Settings, audio, and shake detection in TimeDown
6.1. Settings bundle in iOS projects
Technique 35 Adding settings to an Xcode project
Technique 36 Initializing iOS settings
Technique 37 Accessing settings values in an app
Technique 38 Setting the app settings icon
6.2. Runtime and time-based UI changes
Technique 39 Rounding corners of a view
Technique 40 Updating the UI with a repeating timer
6.3. Playing audio and vibrating the device
Technique 41 Playing an MP3 file
Technique 42 Vibrating the iPhone
6.4. Detecting and handling device motion
Technique 43 Detecting shaking with the accelerometer
Technique 44 Handling shaking with an action sheet
6.5. Summary
7. CoreData, iPod access, and playing music—PlayMyLists
7.1. Creating a table view project
Technique 45 Create a project with table navigation
Technique 46 Defining entities in CoreData
Technique 47 Creating relationships in CoreData
Technique 48 Inserting and deleting CoreData objects
Technique 49 Creating classes for CoreData entities
7.2. Displaying CoreData for data-driven apps
Technique 50 Display selected item details
Technique 51 Passing a Playlist to the Detail View controller
Technique 52 Replacing the detail view controller
Technique 53 Managing tracks in the selected playlist
7.3. Accessing iPod music
Technique 54 Using the media picker to access music
Technique 55 Finding media info from the iPod
7.4. Playing music with iOS
Technique 56 Playing the playlist
Technique 57 Handling music player updates
7.5. Summary
8. Push notification and in-app purchase—Rock, Paper, Scissors
8.1. Using Apple Push Notification
Technique 58 Provisioning for push notification
Technique 59 Configuring UrbanAirship for APN
Technique 60 Registering your app for push notifications
Technique 61 Registering your app with UrbanAirship
Technique 62 Sending a batch push notification
8.2. In-app purchase
Technique 63 Setting up iTunesConnect for in-app purchase
Technique 64 Creating an in-app test account
Technique 65 Adding in-app purchases to the project
8.3. The Rock, Paper, Scissors game
Technique 66 Designing the game
Technique 67 Overturning a loss
8.4. Summary
9. GameCenter leaderboards and achievements—Rock, Paper, Scissors
9.1. Game Center authentication and leaderboards
Technique 68 Authenticating the player
Technique 69 Configuring leaderboards in iTunesConnect
Technique 70 Saving the player’s score
Technique 71 Displaying the leaderboard
9.2. GameCenter achievements
Technique 72 Adding an achievement in iTunesConnect
Technique 73 Reporting achievement progress
Technique 74 Displaying achievement boards
9.3. Matching and playing via GameCenter
Technique 75 Matching players
Technique 76 Inviting friends to play
Technique 77 Voice chat via the GameCenter
9.4. Summary
10. iTunes API, iPad, and iAd—MusicSearch
10.1. Searching for music with the iTunes API
Technique 78 Querying with the iTunes API
Technique 79 Displaying JSON results
Technique 80 Playing song preview
10.2. Converting an app to iPad
Technique 81 Converting the project in Xcode
Technique 82 Adding a split view to the app
Technique 83 Displaying items in the detail view
Adding iAds to an app
Technique 84 Configuring iTunes for iAds
Technique 85 Adding iAds to an app
10.3. Summary
11. Collection view, social, reminders, and state restoration—MeetSocial
11.1. Presenting data using a collection view
Technique 86 Creating a project to use a collection view
Technique 87 Fetching search results from Meetup.com
Technique 88 Displaying items in a collection view
11.2. Sharing via the Social Framework
Technique 89 Specifying activity items
Technique 90 Presenting the activity sharing interface
11.3. Creating calendar items in the OS
Technique 91 Creating the event store and calendar event
Technique 92 Creating a calendar reminder
11.4. Saving and restoring the UI state
Technique 93 Specify that an app will save/restore
Technique 94 Setting restoration IDs on objects
Technique 95 Assigning restoration classes
Technique 96 Encode/decode UI-related state values
Technique 97 Table/collection datasource considerations
Technique 98 Additional app version and state data
11.5. Summary
Appendix A: The iOS developer program and app distribution
index
About the book
When you are building an iOS app, you want more than basic concepts—you want real answers to practical problems. You want iOS in Practice.
This book distills the hard-won experience of iOS developer Bear Cahill into 98 specific iOS techniques on key topics including managing data, using media, location awareness, and many more. And the sample apps are wonderful! As you pull them apart, you'll see two things: experienced app development and creative design savvy in action.
What's inside
- WhereIsMyCar drives you through maps, CoreLocation, and camera access.
- PlayMyLists tunes in on settings, audio, and shake detection.
- Rock, Paper, Scissors explores networking, voice, in-app purchase, push notification, and invitations.
- Examples written for iOS 6 using Xcode 4.5.
About the reader
Written for readers who know the basics of Objective-C and are interested in practical app development.
About the author
Bear Cahill is an independent iOS developer whose clients include both large and small companies. He has created or contributed to numerous popular apps and is a frequent speaker and presenter. He writes a blog at brainwashinc.com.
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If you’re a web developer wanting to add iOS to your repertoire, Bear is the guide for you.
A quick and easy way to get into the iOS mindset.