The list of swift articles. Swift is essential language to develop iOS Applications. I have created tutorial which is easy to understand. So Let’s Dive :)
NSUserDefaults, which is now called UserDefaults in Swift, is a mechanism for storing small pieces of data persistently across app launches. It’s typically used for storing user preferences, settings, and other simple data. The reason why UserDefaults can only store class instances and not other types directly is due to its design. UserDefaults is primarily …
SOLID represents 5 five design principles intended to make object-oriented designs more understandable, flexible, and maintainable. Let’s discuss one by one 1. Single Responsibility Principle Every class should have only one responsibilityExample: In below example class UserProfileManager is single responsibility class which has getUserProfile function 2.Open/Closed Principle Software entities such as classes, modules, and functions should be open for …
In Programming language principal generally we consider State & Behaviour State can be consider as properties(let, var) & Behaviour as Functions. For example: – dog, cat, and vehicle. To illustrate, a dog has states like age, color, name, and behaviours like eating, sleeping, and running. State tells us how the object looks or what properties …
Why extensions must not contain stored properties? Read More »
We can use repeat-while which is equivalent to do-while loop in swift. Here the single passthrough will happens first after that condition will be verified
If you have two diffrent string and want to have diffrent text style like colours, font then you can use NSAttributedString which can customise. In below example i have joined two string with diffrent fonts, colours into same label.
We often required to calculate how much time xcode required for execute certain chunk of code. Fortunately there is a workaround which might be used is `CFAbsoluteTimeGetCurrent()`Here i have used Big O(n^2) Time complexity you can change values & test it over xcode.
typealias also known as type-Identifier. so basically we are defining a substitute of a type. For example we can give type of String to Str as – typealias Str = String so now onwards you can use Str instead of String 1. Basic Example with data type You might thinking what’s the big thing in …
Documentation helps developers & peers to get through the code explanation, we often use ⌥ Option + click to find inbuilt apple documentation or we can just jump towards inspector area & click on any method it will appear the markup description on right panel So Let’s start writing in our code example — Summary …
In Swift we can use pow(::) for making power of any number. For Example if we need 2 power 3 – Further you can also typeCaste to Int as let output = Int(pow(a,b))// prints 8Remember to add import Foundation for get rid of compile time error.
In general we use UIScrollView, UITableView or UICollectionView & sometimes we have to scroll programmatically to Top or bottom, so we can achieve it by using setContentOffset where we set where exactly to scroll Below are 4 helper methods which help in scrolling the Scroll view UIScrollView scroll to bottom UIScrollView scroll to Top UIScrollView …
How To Scroll To A Position Programmatically In UIScrollView Read More »
