How To Use Swift Closures Example
Swift closures is a kind of code block which can be used as a function, function return type or other function’s parameters. It can has parameters and return values, or […]
iOS Tutorial
How To Use Swift Switch Case Example
Switch case is a powerful condition check expression which exist in many programming languages. But in swift, switch case expression add some useful features in usage, it provide more powerful […]
How To Set iOS UIView Background With Customized Color Or Image In Swift
In previous article How To Draw Rectangle View Use Swift In iOS App we have learnt how to draw a rectangle, how to set the rectangle background color and how […]
How To Use Dictionary In iOS Swift
Swift dictionary is used to store key value pair data. The stored key and value data type should be consistent. The key value data type can be declared at the […]
How To Fix Error ‘Value Of Optional Type Must Be Unwrapped To A Value Of Type’ In Swift
There are three kinds of variable declaration in swift programming. You can declare a swift variable as a variable (var name: String = “jerry “) that value can be changed […]
How To Draw Rectangle View Use Swift In iOS App
This example will show you how to use a swift CGRect object to draw a rectangle in iOS app, it also show you how to add the rectangle as the […]
iOS Swift Array Example
Swift array can only store same data type values. When you declare a swift array, you had better specify the array element data type at declaration time. But if you […]
How To Use Swift String Example
String is a very useful data type in programming language especially in swift. This article will show you some examples about how to create string, manipulate string in swift coding. […]
How To Use Xcode Playground Project Example
Xcode playground project is a project that can help you to run your swift source code immediately when you write it. This is something like what you see is what […]
How To Keep Photos Saved In iCloud When Delete From iPhone
iCloud is a very good place for you to save your iOS device documents ( such as photos, videos, audios etc ) in the cloud. This service can make your […]
