KB Category: Swift Significance

  • How to Download Files Using URLSessionDownloadTask?

    Here, we are going to discuss how to download large files and save partial data even when the app is terminated and also updating the view when it is in the background. Get your tech solution built by top industry experts!!! Download Files Using URLSessionDownloadTask Creating an object of URLSessionDownloadTask Create an object of URLSessionDownloadTask…

  • Dictionaries in Swift

    You may know that in Swift arrays to read out a value, you can call it’s index value similar to: var someArray = [“Farhan”, “Syed”, “March”, “19”, “1996”] someArray[0] Instead of remembering the index value that is assigned to each value we can re-write this with a dictionary. By dictionaries, instead of arbitrary numbers you have read…

  • Conditional Statements in Swift

    When you desire your code to perform only if a certain condition is true then you can use an if statement. You can execute a if like so: var brand = “Apple” if brand == “Apple” { print(“Brand is Apple”) } An  if statement is begin with if followed by the condition then a block, open and close braces. Let’s include a else after the if:…

  • String interpolation in swift

    String interpolation is just several imagine term for combining variables and constants within a string. For example a string like so: var brand = “Apple” Now we might simply print this out by executing: print(“My favorite brand is \(brand)”) We might also utilize this way: print(“My favorite brand is ” + brand) But this technique…

  • Switch Cases in Swift

    You’ve mainly likely heard of an if statement, consider of switch cases to be the more advanced form of a if. To begin a switch statement you inform Swift what variable you want to run things by, and then give the list of possible cases. Swift will get the case that matches your code first and then perform it then exit the switch. Here’s a simple example: let someNumber =…

  • Loops in swift

    In coding, when it comes to repeating operations, you can copy and paste your code 20 times or so or you can easily execute a loop. Verify this simple example: print(“1”) print(“2”) print(“3”) print(“4”) print(“5”) print(“6”) print(“7”) print(“8”) print(“9”) print(“10”) print(“11”) print(“12”) print(“13”) print(“14”) print(“15”) print(“16”) print(“17”) print(“18”) print(“19”) print(“20”) The console numbers 1…20 will…

  • How to create funtion in Swift

    In this blog, I’ll explain you how to create simple functions in Swift along with a little more complex functions that take parameters and can return a value. An easy method to obtain some practice would be to open and follow beside. Let’s begin with a simple function: func someFunctionName () { print(“Hello World!”) }…

  • How to use UIImageView & UIScrollView to swipe through images – Swift iOS

    In this tutorial, we will show you How to use UIImageView & UIScrollView to swipe through images are followed: Start building your iOS apps in Swift with well-equipped solution UIImageView & UIScrollView to swipe through images Step 1: Create a new project Earlier you have your project set up, delete your storyboard. Step 2: Set ViewController.swift as the…

  • Some top reasons to write unit test cases with Swift

    Learn the prime reasons to write unit test cases with Swift for your iOS app. Unit tests are awesome. They not only improve the overall quality of your code but also make it easier for you to test individual pieces of your app without having to manually run your app. Turn your idea into an…

  • Protocols- Oriented programming in swift

    Swift has an additional interesting aspect known as protocol. Protocols are a latest technique of viewing class hierarchy and inheritance. In a predictable object oriented programming environment, you define classes, which explain objects and the functionality they offer, along with the properties they have. Then, you subclass your classes, inheriting each of their functional ity…

  • How to use Generics in iOS swift

    Generics are an interesting concept, and they permit you to reuse your code for several types. Let’s stare at an example: func swapInts(_ a: inout Int, _ b: inout Int) {     let temporaryB = b     b = a     a = temporaryB } swapInts function obtains 2 Ints and swaps them. Here is a sample usage:…

  • Closures and Higher Order Functions(Map, filter,forEach,reduce,Flatmap)

    Closures and Higher Order Functions One of major key features in Swift is the closure. In Objective C, closures are known as blocks. The perception is similar, but they’re much more influential in Swift. Simply set, a closure is a function without a name. Swift closures are first class types, meaning that they can be allocate to…