Have you got the Snapchat App? Even taken a screenshot of the image because you wanted to keep it forever? Ever wondered how to do that in your own app?
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Continuing the discussion about , let us move on to Swift properties, which are basically Swift constants or variables used in a class, structure, or enumeration. More specifically, they are stored values for a class, structure, or enumeration, that have getter and setter methods that can be modified.
Here is a very quick tip that about Base64 decoding for iOS Applications and for Objective-C iOS7+, incl iOS8 Swift.
How do you store data in a program? Or, How do you store data in Swift for your iOS Application. Well, you store them in variables, but you already knew that didn’t you? Here is my first post about Swift variables, where we discuss their Swift Variable declaration and Swift Variable definition. In particular, we will mostly be discussing the concept of Swift variables and Swift constants.
From my short experience with iOS8 Swift there are three approaches to implement the Singleton pattern that support lazy initialisation and thread safety.
Have you wanted to send an e-mail from your app and pre-populate the fields like the recipient, subject, or body text? In this How to send emails from your ios application tutorial I will show you how. Thankfully Apple made it pretty easy with MFMailComposeViewController. There is a bit of setup, but most of its actual implementation is pretty easy.
Have you ever wanted to alert other classes of your app of some event from another one?
This awesome resource was started in November 2013. The initial goal was to provide guidelines to write the most clean Objective-C code possible: there are too many guidelines out there and all of them are debatable. We didn’t aim introducing hard rules but, instead, a way for writing code to be more uniform as possible across different developers. With time the scope moved to explain how to design and architecture good code.
Although we are all in love with Objective-C, the power of a language itself is given by its inner features. Languages like Ada have a built-in concurrency model, while Objective-C needs external libraries (let’s say libdispatch) to try to achieve the same power of expression found in richer languages. The same happened for the implementation of the Actor Model. The standout language for the feature of asynchronous message passing using the actor model is Erlang. From Wikipedia: The actor model
This part of the iOS 8 Swift Programming Language tutorial Series covers Strings. Like most programming languages Strings are extremely useful. Find out how to use strings in Swift here.