How to get started with iOS app development

Apple’s mobile operating system, iOS is the second most popular mobile OS in the world. In fact, as per IDC Worldwide Quarterly Mobile Phone Tracker released in June 2019, iOS will retain a market share of 13.3% as against the 86.7% of the dominant Android OS.

With the recent release of
third public beta of iOS 13, iOS offers an exciting ecosystem for mobile app developers. You can create programs in native languages like Swift or Objective-C or build a cross platform app using a JavaScript framework like ReactNative or C#, F# framework Xamarin.

Here’s how you can get started with iOS app development.

Developer Requirements

To develop an iOS app, you will need a Mac computer running the latest version of Apple’s IDE, Xcode. The IDE offers the graphical interface needed to write iOS apps. Xcode includes iOS SDK, tools, compilers and frameworks you will need to develop and debug an iOS app. Apple recommends using modern
Swift programming language for writing iOS apps.

Before you start developing apps for iOS, here are some skills that developers must possess:

• Master Xcode: Apple’s IDE offers all the tools you need to develop an app. You need to get familiar with these tools. Xcode has a code editor, compiler, organiser, debugger, and many other important development tools to build great apps.

• Swift programming language: Apple’s powerful programming language, Swift brings all the elements needed to code iOS, macOS, watchOS, and tvOS apps. It’s easier to learn the Objective-C language and Swift and code in this environment.

• User interface: Every app needs a good user interface (UI). You can use the SwiftUI or traditional view controllers to develop the user interface. UIs are made up of buttons, navigation, labels, views, images, controls etc.

• App architecture: You need to be clear about the architecture before starting with any new projects. App architecture is a foundation on which you will be building your app. It takes years of experience as a developer to write clear, extensible and maintainable code.

• Swift topics: Begin with Swift-specific topics to learn the logic. You need to also master topics like Variables, Functions, Optionals, Conditionals, For Loops, and Object-Oriented Programming.

You need to follow a process to learn iOS development. You will find the guidebook for each of these steps on the web. Apple’s own learning resources also comprise enough material to help you get started.

• Start working with view controllers and SwiftUI

• Learn how to use UI elements like UILabel, UIImage, and UIButton

• Work with table views and tab bars

• Work with navigation and UINavigationController

• Send and receive notifications with NotificationCenter

• Learn how to find and fix bugs

• Get started with Model-View-Controller

• Learn about SOLID, DRY and the Single Responsibility Principle

• Learn more about advance Xcode tools, Interface Builder and App Store Connect