Beginning iOS 9 Programming with Swift by Simon Ng

By Simon Ng

Structure: PDF
Release date: April 19, 2016


We will construct a meals app from scratch. beginning via growing an app prototype, we are going to upload a number of positive aspects to the app in every one bankruptcy and you'll have an app after operating throughout the booklet. through the process the app improvement, you'll examine:

- study fast 2 fundamentals utilizing Playgrounds
- layout UI utilizing Stack Views
- New positive aspects of Xcode 7 like Storyboard References
- automobile format and measurement Classes
- desk perspectives, Tab Bar and Navigation Controllers
- desk mobile Customization and Self Sizing Cells
- employing Blur influence utilizing UIVisualEffect
- UIView animations and photograph Manipulation
- operating with maps
- getting access to photograph Library and Camera
- utilizing UIWebView and SFSafariViewController to offer internet content
- seek bar integration
- Saving facts utilizing center Data
- growing educational monitors utilizing UIPageViewController
- operating with CloudKit
- development a social sharing for fb and Twitter
- Localizing Your App into varied languages
- Arranging beta try out utilizing TestFlight
- filing your app to App shop

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You can get even more information by checking out the class reference. ​ 53 Figure 4-5. Class Information After the UIAlertController object is configured, the last line of the code is for showing the alert message on screen. presentViewController(alertController, animated: true, completion: nil) In Swift, you use the self property to refer to the current instance (or object). To display the alert, we ask the current view controller to present the alertController with animation. In most cases, the self keyword is optional.

Quick note: You may wonder what the term "size classes" means. Just forget about it right now and focus on learning auto layout. I will discuss about it in the later chapter. Using Auto Layout to Center the Button Xcode provides two ways to define auto layout constraints: 1. Auto layout bar 63 2. Control-drag We'll demonstrate both approaches in this chapter. Let's begin with the auto layout bar. At the bottom-right corner of the Interface Builder editor, you should find a few buttons. These buttons are from the layout bar.

You're now ready to test your app. Select iPhone 5/5s as the simulator and hit the Run button to run the project, you'll see a Hello World button in the simulator as shown in figure 317. Cool, right? However, when you tap the button, it shows nothing. We'll need to add a few lines of code to display the "Hello, World" message. ​ Figure 3-17. Hello World app with a Button Quick note: This is the beauty of iOS development. The code and user interface of an app are separated. You're free to design your user interface in Storyboard and prototype an app without writing any lines of code.

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