|
Hey Reader, Do you want to make an iOS app? How do you learn SwiftUI? What projects should you work on? If you’re new to iOS development or have taken a break, there is always something new to learn, as technology constantly changes. While working on this tutorial, I learned a few new things and want to share them with you. Watch my Full SwiftUI Tutorial Today (Payment Calculator) You’ll Learn:
To improve your SwiftUI skills, you must practice implementing different User Interfaces (UIs). Making a new UI component or the design of a screen will teach you things about layout, composition, and layering. Pick 1-3 designs that you like from Dribbble or Behance and make them. Click here to watch my Full SwiftUI tutorial on YouTube (if you enjoy it, please like the videos and subscribe). Learn the Limitations Understanding how SwiftUI works is essential because it helps you know its limitations. In SwiftUI, if you want to match a custom Slider design from a designer, you need to create your slider because the built-in SwiftUI slider (in iOS 18) does not currently support customizing the thumb image or the track height. This omission is an example of one of the minor issues you need to resolve when working in SwiftUI. It works well for 90% of the things you need to do, but the last 10% requires additional work to match UX designs. You can push back on your design team and use a standard control or make the design using UIKit. Challenge Yourself: Can you build the same UI without watching my tutorial? Watch my introduction and then pause the video. If you get stuck, hit play and see where you can improve. Short on time? Watch me speed code the entire app in 20 minutes. I speed up the video by 10x so you can see the big picture without being bogged down by all the implementation details. Don’t just watch tutorials. You need to build real app ideas. Solve a problem. I film my videos like I’m doing a live class or presentation, and I wanted to make editing simple (by not needing to edit). I needed a live presentation tool to help me create and run slideshows. I usually only trim the beginning or end of a video. My idea started with a mindmap, and then I built a prototype. Now, I’m using that app to make videos for YouTube. In your day-to-day activities, consider how to make something easier. What app could assist you? Focus your prototype on the essentials first. When I started, I didn’t have a text editor to change the slides. I had to change the presentation by changing a Swift String and running the app through Xcode. However, the design evolved after using the app for several videos. I learned what I needed. Now, I have an editor and options to control what slides appear. Get a behind-the-scenes look at my latest macOS app update here. In the link above, you can see the beginning stages of the Full Screen mode. It is a little messy, but that is how development works. You iterate, run, tweak, and repeat. Suddenly, you have an app that does different things and solves your problem. How am I using the slideshow app? Watch this video to see my new app in action as a live presentation tool, similar to Keynote, but driven by my notes written in Markdown format. What’s Markdown? Below is an example of Markdown. I use Markdown formatting for all my writing. It allows me to create PDFs, slides, and blog posts from the same text. I don’t have to worry about styling.
Thanks for joining me on this development journey. Talk soon, -Paul P.S. Yesterday, I used ChatGPT and Grok to help me pick an official name for my upcoming slideshow app. I needed an app name to create a TestFlight beta, but I wasn’t satisfied with my placeholder names. That’s when ChatGPT suggested Easy Slides, and I decided to lean into my Super Easy Apps branding. That idea inspired me to call the app: Super Easy Slides. I have a text-based timer app called Super Easy Timer, which you can download here. If you want to join the TestFlight beta, hit REPLY, and I’ll send you the TestFlight beta invite along with my current user guide. |
Join 5,901+ iOS/macOS developers using Codex and agents to build and ship apps. Expect practical tutorials, repeatable workflows, and hard-earned lessons from 7 shipped apps and time at Apple, Microsoft, and GoPro.
Hey Reader, Agents write better code when they can read docs instead of guessing from memory. A 2026 paper found up to a 20% improvement in first-try code accuracy when models were given the right programming context. So what do you do with that? Don’t rely on the agent to know everything from their training set. Instead, provide tools or local docs that they can reference. Your local docs should include sample code so agents can use the code correctly (the first time). If you’ve ever read...
Hey Reader, My iOS and macOS app development workflow has changed since my last GPT-5.2 Workflow video. GPT-5.4 lets me iterate on bug fixes, features, and ideas much faster than before. Watch: How I Build Apps with Codex and GPT-5.4 If you want to build apps with agents, use my app-creator skill. It can scaffold a new Xcode project and teach your agent how to create a Makefile for an existing Xcode project. 2 Tactics You Can Steal #1 Use a Learnings.md File with Your Agent Self-improvement...
Hey Reader, I’m launching early access for my new app-creator agent skill for iOS/macOS apps today! In this email: 2 Tactics You Can Steal This Weekend 5 Resources and Links Community Spotlight What does app development look like in 2026? Coding has forever changed over the last 3 months. I’m all-in on app development with Codex 5.3. It’s a workhorse. If you’re an idea person still learning the basics, you have a huge opportunity. Gone are the days when you need to know every line of code....