Author: Steven Lipton
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Make Playgrounds Apps: First Steps the video
Here’s the video version of the post from last week, Starting this week the video will post with text.
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Make Swift Playgrounds 4 Apps: First Steps
Swift Playgrounds 4 changes the game if you want to get into programming on the iOS and iPadOS platforms. Today we start a series that takes you from knowing nothing about programming to writing apps, one step at a time. We’ll use the Swift programming language and the SwiftUI Framework for user interfaces. Along the […]
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A Pro walkthrough of Swift Playgrounds 4
I’ll show you many of the new and nifty features of Swift Playgrounds 4 in this video.
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Why You Don’t Draw a Straight Line to Success
When I start talking about drawing, most people usually say they can’t do art with the phrase “I can’t even draw a straight line.” Video 10 in the Explore art with Procreate series addresses this directly: I teach you to make the straight lines of the artist. However, in the video, I didn’t unpack what that phrase really means and […]
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Custom Quick Help in Xcode
There are some powerful documentation features of Xcode you may not be using and will make your life a lot easier. Take a look at the downloaded exercise file. Go ahead and run it like I have here. I wrote a simple app to turn on and off a matrix of lights. Stop the app. […]
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Checklists in Swift UI
In our last tip, I made a single checkbox in SwiftUI. Let’s learn more about collections in SwiftUI and build a checklist. If you download the exercise file, you’ll find an expanded version of last week’s project. Under the model folder, I added some data for our list of pizzas to try. let checkListData = […]
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Checkboxes in SwiftUI
There’s lots of good stuff in SwiftUI. One missing control is old fashioned checkbox like I have on the web or on my Mac. There is a way to make a checkbox with a Toggle control. However, as a bit of a intro to the philosophy of SwiftUI, let look at creating a checkbox. Open […]
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Segue Actions
If you’ve been working with View controllers for a while, you’ve probably dealt with prepareForSegue. In Xcode 11, there’s a new way to handle this that makes a little more sense: Segue actions. Let’s take a look at this feature. If you download the storyboard, you’ll find I set one up for you. It is […]
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Use Sets in Swift
Of the most underrated collection types is sets. Sets are an unordered collection with unique values. Let’s take a look at what you can do with sets. Download the exercise files and you’ll find I created playground with a Struct called Pizza. I’ve made two pizzas for you. Currently, this is all arrays, but does […]
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Strings in Swift: Going back to BASICs
A few tips ago, we went under the hood with unicode Characters and their relationship to the Swift String type. For most, that’s great theory, but how does it apply to strings, not characters? When I started programming back in the 1980’s, I had three string functions in BASIC: RIGHT$, LEFT$, and MID$. Let’s create […]
Make App Pie 