You want to programmatically create a custom view. Then you want to fill it up with buttons, labels, and all different kinds of subviews. If you aren’t careful, your code can get messy quick. In order to battle this, a popular technique is used by creating everything as stored properties and initializing them as closures. …
The golden rule for dealing with optionals is to make sure they are safely unwrapped. Otherwise you are just begging for future unexpected behavior that causes a nil somewhere and crashes your beautiful app. Quick refresher – an optional value may either have a value or nil. Before you can do anything with an optional …
Using Guard Statements to Make Optional Binding Variables more Accessible Read More »
Almost any app you are going to build is going to have multiple screens, and you are going to want to navigate back and forth between them seamlessly. Xcode makes the set up nearly instant. 1. Choose your Home View Controller From a new project, press the left button (of 3) to highlight your View …
When you work with a set of numbers, you want to keep things clean by writing the minimal code possible. Ranges are your super shortcut to working with multiple number values. With the simple … >< symbols, you can do a lot of work without much space required. 11. Easy Number Array Creation Creating an …
You are suddenly blasted with an unending amount of numbers. It’s a battle royal. You don’t care about all the individual competitors. You want to know the strongest there is. And maybe the weakest, so you can have something to compare the strongest to. You want to find out the minimum and maximum values of …
Finding an Array’s Minimum and Maximum Values in Swift Read More »