Defer Statement: Introduced in Swift 2.0, The Swift Defer statement isn't something you'll need to use often. What is Defer? A defer statement is used for executing code just before transferring program control outside of the scope that the defer statement appears in. In simple words, defer is an operator used with closure where you include a piece of code that is supposed to be executed at the very end of the current scope. Syntax defer { statements } Example func f () { defer { print ( "defer statement executed" ) } print ( "End of function" ) } f () // Prints "End of function" // Prints "defer statement executed" The above example defer statement was executed after the print statement after the end of function f() 's Scope. Multiple Defer One of the most powerful features of defer statement is that you can stack up multiple deferred pieces of work, and Swift will ensure they all get executed. If you use multiple de...
So You have a solution to a problem that many other iOS developers have and you want to help them, but you also want to protect your code and build a business? Binary Framework. That's what you want! You might have noticed that you can't see the source code of UIKit Framework you use to build your iOS apps on top of every day. That's because Apple ships the UIKit as a binary framework in its iOS SDK. Below are the available ways of creating Libraries or framework:- Umbrella Framework: In the Apple development environment, the incorporation of one framework into another is called “ Umbrella ”. This type of framework is meant to hide the use of some sub-frameworks and thus facilitate their use. Umbrella frameworks available for macOS apps , but Apple does not recommend using them. Apple does not officially support the Umbrella Frameworks for iOS,watchOS, or tvOS , indeed citing the official documentation: Don't create Umbrella Frameworks. While it is...