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  • Book Overview & Buying Application Development in iOS 7
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Application Development in iOS 7

Application Development in iOS 7

By : Kyle Begeman
4.7 (3)
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Application Development in iOS 7

Application Development in iOS 7

4.7 (3)
By: Kyle Begeman
Buy this Book

Overview of this book

Table of Contents (15 chapters)
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Application Development in iOS 7
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Application Development in iOS 7
Credits
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Credits
About the Author
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About the Author
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
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1
Xcode 5 – A Developer's Ultimate Tool
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Xcode 5 – A Developer's Ultimate Tool
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The new user experience
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Top-level documentation
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Debugger and debug gauges
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Automatic configuration with accounts and capabilities
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Source control
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Asset catalogs
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Quick build device selection
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Storyboard previews
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Summary
2
Foundation Framework – Growing Up
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Foundation Framework – Growing Up
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Why Foundation matters
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Modules
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NSProgress
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NSArray
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NSTimer
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NSData
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NSURLUtilities
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Summary
3
Auto Layout 2.0
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Auto Layout 2.0
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Why you should use Auto Layout
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Creating our project
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Starting our storyboard
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Setting up button actions
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Using Auto Layout
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Applying constraints
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Resolving Auto Layout issues
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Finishing our menu view
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Preparing for navigation
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Summary
4
Building Our Application for iOS 7
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Building Our Application for iOS 7
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Designing for iOS 7
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Putting together the pieces
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Summary
5
Creating and Saving User Data
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Creating and Saving User Data
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Picking up where we left off
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The navigation bar style
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Adding our button action
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Adding buttons to our navigation bar
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Adjusting our storyboard view
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Adding our delegates
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Using a tap gesture
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Getting the image from UIImagePickerController
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Adding the text field delegate
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Saving the data
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Summary
6
Displaying User Data
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Displaying User Data
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Custom cell
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Adding food
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Loading data
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Displaying data
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Showing the detail view
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Coding the detail view
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Summary
7
Manipulating Text with TextKit
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Manipulating Text with TextKit
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What is TextKit?
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Dynamic type
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Exclusion paths
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Adding letterpress
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Text formatting
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Underlining text
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Summary
8
Adding Physics with UIKit Dynamics
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Adding Physics with UIKit Dynamics
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Motion and physics in UIKit
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Adding gravity
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UIDynamicAnimator
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UIGravityBehavior
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Behavior properties
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Creating boundaries
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Collisions
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Creating invisible boundaries
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Dynamic items
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Manipulating item properties
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Collision notifications
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Attaching items to other items
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Snapping items
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Using motion in our app
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Summary
1
Index
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Index

Collisions

With our image view responding to gravity and our screen bounds we can start detecting collisions. You may have noticed that when the image view is falling, it falls right through our two labels below it.

This is because UIKit Dynamics will only respond to UIView elements that have been assigned behaviors. Each behavior can be assigned to multiple objects, and each object can have multiple behaviors. Because our labels have no behaviors associated with them, the UIKit Dynamics physics engine simply ignores it.

Let's make the food image view collide with the date label. To do this, we simply need to add the label to the collision behavior allocation call. Here is what the new code looks like:

collision = [[UICollisionBehavior alloc] initWithItems:@[self.foodImageView, self.foodDateLabel]];

As you can see, all we have done is add self.foodDateLabel to the initWithItems array property. As mentioned before, any single behavior can be associated with multiple items. Run your code and see...

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Tech Concepts
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Programming languages
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Application Development in iOS 7
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