Beginning iOS 9 Programming with Swift by Simon Ng

By Simon Ng

Layout: PDF
Release date: April 19, 2016

Summary:

We will construct a nutrition app from scratch. beginning through developing an app prototype, we'll upload a number of positive factors to the app in every one bankruptcy and you'll have an app after operating in the course of the publication. through the process the app improvement, you are going to study:

- examine rapid 2 fundamentals utilizing Playgrounds
- layout UI utilizing Stack Views
- New gains of Xcode 7 like Storyboard References
- automobile format and dimension Classes
- desk perspectives, Tab Bar and Navigation Controllers
- desk phone Customization and Self Sizing Cells
- utilising Blur influence utilizing UIVisualEffect
- UIView animations and photograph Manipulation
- operating with maps
- having access to picture Library and Camera
- utilizing UIWebView and SFSafariViewController to give internet content
- seek bar integration
- Saving information utilizing middle Data
- growing educational displays utilizing UIPageViewController
- operating with CloudKit
- construction a social sharing for fb and Twitter
- Localizing Your App into assorted languages
- Arranging beta try out utilizing TestFlight
- filing your app to App shop

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Prior to that, if you needed to create a universal app that supports both types of devices, you would 37 need to create two different storyboards, one for each device type. Figure 3-13. Disable size classes We'll not go into size classes in this chapter. To keep things simple, we'll disable size classes for your first project. In the File inspector (see figure 3-12), uncheck the "Use Size Classes" checkbox under the Interface Builder Document. In case the File inspector is hidden, you can choose View > Utilities > Show File Inspector.

Optionally, a method can take in parameters as input. The parameters are defined within the parentheses. In our example, however, the method doesn't need any parameter. In this case, we simply write an empty pair of parentheses. There is one keyword in the method declaration that we haven't discussed. It's the @IBAction keyword. This keyword allows you to connect your source code to user interface objects in Interface Builder. 52 When it is inserted in the method declaration, it indicates the method can be exposed to Interface Builder.

Zip). Before we add the layout constraints to the user interface, let's re-enable Size Classes. This is the option we have deactivated when we built the first app. Under the File inspector, check the "Use Size Classes" option to re-enable it. When prompted, click "Enable Size Classes" to confirm the change. 62 Figure 5-3. Freeform canvas The view controller is restored to a freeform canvas. The button is now shifted to the left. You can drag it to the center of the view as that shown in the figure.

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