Start developing iOS Apps (Swift) is that the excellent start line for learning to make apps that runs on iPhone and iPad. Get through this set of progressive lessons as a target-hunting introduction to putting together your initial app-including the tools, major ideas, and best practices that may ease your path.
Each chapter contains a tutorial and also the abstract info you wish to complete it. The teachings hinge on one another, walking you thru a step-wise method of making an easy and Real-world iOS app.
As you create your means through the teachings and build the app, you’ll study ideas in iOS app development, gain a deeper understanding of the
Swift programming language, and inform yourself with the numerous valuable options of Xcode, Apple’s integrated development surroundings (IDE).
Since its 1.0 release in September 2014, Savvy Apps’ development team has been experimenting with and using Swift in iOS projects.
Though the majority of our current projects remain in OC (Objective-C) because of the relative youth of Swift, we have started coding new projects in Swift since its 2.0 release in September 2015.
Swift Tips for Those Getting Started
Clean Up Asynchronous Code
Swift had got a neat syntax for writing off the completion functions. We had completion blocks in the Objective-C, but they were delayed in the language’s development process.
Control Access to Our Code
We should always use the appropriate access control modifier to encapsulate the code. Good encapsulation helps us to understand how pieces of code interact with each other.
Perform experiment and validation
Playground is an interactive and easy coding environment in Swift. We can also create playgrounds in order to test and validate the ideas, learn Swift and share concepts to each other.
Leave NSNumber Behind
Here the Objective-C uses the C primitives for numbers, also the Foundation Objective-C API provides the NSNumber type for boxing and unboxing the primitives as well. We can actually add Int / Float / AnyObject values for Swift dictionaries and array.
The most common Swift type that are used instead of NSNumber:
Int: [NSNumber integerValue]
UInt: [NSNumber unsignedIntegerValue]
Float: [NSNumber floatValue]
Bool: [NSNumber boolValue]
Double: [NSNumber doubleValue]
To download the latest version of Xcode
-Open the App Store app on your Mac (by default it’s in the Dock).
-In the SF (search field) in the top-right corner, type Xcode and press the Return key.
-The Xcode app shows up as the first search result.
-Click Get and then click Install App.
-Enter your Apple ID and password when prompted.
-Xcode is download into your Application directory.
Here in Swift we had used may update classes and methods from time to time. We need to choose the correct development methodology so that we can develop more secure and flexible application.
As the Apple CEO said, “The sidelines are not where you want to live your life. The world needs you in the arena.” Its’s just the beginning for better future and technology advancement.
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