Tag: Classes

• July 25, 2018

  UIColor Class Extensions

  

  A couple of weeks ago, I added  a column on converting hex colors to UIColor. That was a function you had to copy and paste into your code. I’ve also shown you how to use the assets to keep color names handy. What would be even better is to do all that directly from UIColor.…
• July 21, 2015

  A Swift Tutorial to Working with Classes Part 1:Basic Classes

  I find a lot of confusion among beginners and a handful of intermediate developers about what is a class. Object oriented languages like Swift, Objective C or C++ use classes to organize everything in the language and the API’s. You might have heard words like callback, override, setter and getter and have no idea what…
• December 9, 2014

  KinderSwift 7: Introduction to Functions

  This session we will learn about functions by making colors with UIColor. Transcript Welcome to lesson 7 of KinderSwift. In our last lesson we used this to convert a Int into a Double and this to convert a Double into a Int. Both of these are functions. Functions take the data within the parentheses and…
• April 4, 2014

  From Apple to Raspberry Pi: Using Inheritance and Overrides

  

  Object oriented languages have a  concept called inhertance. A class can give its methods and properties to another class, which then replaces or expands the inherited class. We call the new class a subclass. When we replace a function or method we override the method or function. This allows the method or function of the…
• April 1, 2014

  From Apple to Raspberry Pi: Importing Classes and Disturbing Attributes.

  

  I didn’t do as much As I thought I would today, as I was installing tightvnc on the Raspberry Pi. I then tried out acessing my RasPi on my Mac, Pc, and even my iPad mini. I wasn’t nuts enough t try it on my iPhone — yet. I did download the app though.  …
• March 30, 2014

  from Apple to Raspberry Pi: Making Classes in Python

  

  Objective-C and Python are similar when it comes to defining new classes, but be careful with their differences. In Objective-C we would define a class with two files: a header and an implementation file. In the header we would declare properties like this And possibly public methods In the implementation file we would have the…