Making SwiftUI Pedometer app using URLSession #iOS #SwiftUI

Howdy – I’m Trevor, Adafruit’s Lead iOS Developer and I’m currently learning SwiftUI. SwiftUI is Apple’s newest programming language that makes complex UI very simple to implement. While using SwiftUI I’ve noticed that developing your UI is significantly faster – even faster than using Storyboards! I’ve decided to recreate one of my first iOS apps I’ve made prior using SwiftUI and it was fun and easy to put together.

The app was a pedometer app. Nothing special. This app uses the CoreMotion library and URLSession to make network calls to Adafruit IO and stores the amount of steps and calories accumulated daily.

Adafruit IO is a platform designed (by us!) to display, respond, and interact with your project’s data. We also keep your data private (data feeds are private by default) and secure (we will never sell or give this data away to another company) for you. It’s the internet of things – for everyone!

As I started getting more familiar with SwiftUI, I’ve decided to really lean into its benefits. Instead of create UI that knew I can put together easily, I wanted to make some thing more dynamic.

I went from creating this..

To this!

One thing that I’ve noticed that more complex tasks don’t have good example code yet. Rather than just searching stack overflow for how to accomplish a task, you might have to read the Apple docs and figure out how to put together multiple pieces that have never been written about before. They’re just aren’t a lot of examples for how to do things yet, and there’s a lot of new terminology to learn just to be able to google about what’s going on. I’lll be sure to create more blog posts like this in the future.

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 30,000+ makers on Adafruit’s Discord channels and be part of the community!

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more

CircuitPython – The easiest way to program microcontrollers –

Maker Business — Pololu’s account of the chip shortage

Wearables — Getting overly ambitious with EL wire

Electronics — Invisible Bugs

Python for Microcontrollers — Python on Microcontrollers Newsletter: MicroPython SAMD Support, ESP32-S3 Feather and much more! #Python #Adafruit #CircuitPython @micropython @ThePSF

Adafruit IoT Monthly — Energy Harvesting Sensor Nodes, Tracking a Turtle, , and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Prods 11/17/21 feat. Adafruit KB2040 – RP2040 Kee Boar Driver!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at !

No Comments

No comments yet.

Sorry, the comment form is closed at this time.