SwiftUI Fundamentals | FULL COURSE | Beginner Friendly

Get your start in SwiftUI with SwiftUI Fundamentals. In this 12 hour course we build 4 apps that ramp up in difficulty. The first 3 apps are quite simple, but the 4th and final app grows substantialy in size and challenge. See the timestamps at the bottom of the description for the full curriculum.
The course has been updated for iOS 15 and iOS 16.
If you want a structured viewing experience with a comment section on each individual video, this course is also available (for free) at seanallen.teachable.com.
App 1 Weather:
We learn the absolute basics of SwiftUI to build the user interface of a weather app. If you have experience with SwiftUI, feel free to skip this one as it's very beginner friendly.
Weather Completed Source Code (Updated for iOS 16):
www.dropbox.com/scl/fo/sh092h...
App 2 - Apple Frameworks:
We learn to build a Grid and pass data from our main view to a detail view.
Framework icon images:
www.dropbox.com/scl/fo/lijj23...
Apple Frameworks Completed Source Code (Updated for iOS 16):
www.dropbox.com/scl/fo/5zvhvu...
App 3 - Barcode Scanner:
We learn to use UIViewRepresentable to connect SwiftUI and UIKit in case SwiftUI doesn't support a type of user interface you want.
Barcode Scanner Completed Source Code:
www.dropbox.com/scl/fo/iy2ymc...
App 4 - Appetizers:
This app is a big one where we put it all our learnings together to build a proper SwiftUI app that works with a network call (updated to Async/Await in iOS 15).
Appetizers Completed Source Code (updated for iOS 16):
www.dropbox.com/scl/fo/0h5kub...
What's New in Xcode 15:
• Xcode 15 - What's New
What's New in Xcode 14:
• What's New in Xcode 14
What's New in Xcode 13:
• What's New in Xcode 13
What's New in SwiftUI WWDC 2021:
developer.apple.com/videos/pl...
What's New in SwiftUI WWDC 2022:
developer.apple.com/videos/pl...
What's New in SwiftUI WWDC 2023:
developer.apple.com/videos/pl...
Twitter:
Sean Allen - / seanallen_dev
Book and learning recommendations that help out the channel if you decide to purchase (Affiliate Links):
Paul Hudson's Hacking With Swift:
gumroad.com/a/762098803
Donny Wals - Combine:
gumroad.com/a/909014131
Mark Moeyken’s SwiftUI Books:
www.bigmountainstudio.com/swiftui-views-book/fzc51
Objc.io Books (Thinking in SwiftUI & Advanced Swift):
gumroad.com/a/656585843
#swift #swiftui #iosdeveloper
Timestamps:
0:00 - What you will learn & updates
6:30 - SwiftUI Basics - Weather App
19:01 - Weather - Text
25:54 - Weather - SF Symbols
29:13 - Weather - Main VStack
36:41 - Weather - HStack of Days
50:08 - Weather - Button & Refactoring
1:07:35 - Weather - @State & @Binding Basics
1:18:03 - Weather App - iOS 15 & 16 Updates
1:31:52 - How SwiftUI Works - Fundamental Concepts
2:02:00 - App 2 - Apple Frameworks
2:09:08 - Frameworks - Grid Start
2:20:35 - Frameworks - Grid End
2:32:34 - Frameworks - Detail View
2:47:00 - Frameworks - Intro to MVVM & Moving Data
3:06:09 - Frameworks - Integrating with UIKit
3:17:56 - Frameworks - Refactor
3:38:12 - Frameworks - iOS 15 & 16 Updates
3:53:41 - App 3 - Barcode Scanner
4:05:24 - Barcode Scanner - Camera Setup
4:21:44 - Barcode Scanner - Error Handling
4:26:49 - Barcode Scanner - Coordinator Setup
4:48:28 - Barcode Scanner - More Error Handling
5:02:46 - Barcode Scanner - Refactor
5:12:26 - App 4 - Appetizers
5:24:48 - Appetizers - App Lifecycle
5:29:55 - Appetizers - Model
5:42:19 - Appetizers - List View
5:55:32 - Appetizers - Network Manager
6:12:40 - Appetizers - Connecting the UI
6:26:53 - Appetizers - Errors & Alerts
6:41:35 - Appetizers - Loading View
6:53:21 - Appetizers - Download Image
7:03:42 - Appetizers - Remote Image
7:16:16 - Appetizers - Project cleanup & organization
7:21:12 - Appetizers - Detail View UI Setup
7:41:09 - Appetizers - Detail View UI Connections
7:52:28 - Appetizers - Detail View Refactor
8:02:56 - Appetizers - Account View UI Setup
8:17:29 - Appetizers - View Model & Text Validation
8:33:22 - Appetizers - @AppStorage
8:50:56 - Appetizers - Order Screen UI
9:02:18 - Appetizers - Empty State
9:12:40 - Appetizers - @EnvironmentObject - Order
9:30:21 - Appetizers - iOS 15 - Initial Run
9:38:48 - Appetizers - iOS 15 - Tabbar Badge & List Separator
9:52:25 - Appetizers - iOS 15 - @FocusState Keyboard
10:01:01 - Appetizers - iOS 15 - Async/Await Network Calls
10:26:19 - Appetizers - iOS 15 - AsyncImage
10:32:52 - Appetizers - iOS 16 - Regex, guard let
10:45:58 - App Optimizations
11:19:41 - Data Flow Review
11:38:47 - iOS 17 @Observable
11:45:36 - What’s Next?

[@seanallen]

My iOS Dev Courses: seanallen.teachable.com

[@MobileDeveloper1965]

It is possible to produce an intermediate course without asking for a paid Apple developer’s account.

[@RahulKumar-ez4ek]

😊 Thanks Sean for uploading a Great course, I have completed it today one by one which I started around a few weeks ago.

[@Pushingknowledge]

😂

[@axemanaxeman]

Thank you @seanallen. I am already half way through your Swift language full course. Gonna come back here when I start SwiftUI learning.

[@chiamakabrowneyes]

Sometimes, I just want to give these youtube tutors a big hug. Thank you!

[@DeanWagstaff-kv2gz]

I have viewed many tutorial for swift / swiftUI but above all I find your tutorials are great. Thank you for doing this.

[@freddythompson8794]

I’ve been looking for two months and I’ve finally found a course that actually explains each step. I’ve learned so much already from just a couple videos. Thank you for doing these!

[@seanallen]

Glad you enjoyed it, Freddy 👍

[@jwkranenburg]

Awesome video here and echo-ing what many have said that you are a great teacher and easy to listen to 🙌 I am have dabbled in SwiftUI a bit but the big value for me in this course was refactoring and structure. Thanks!

[@guilhermeteixeirademello4907]

Sean, you are an amazing person! Thanks for all you’re doing for the iOS dev community! You truly deserve the best!

[@seanallen]

I appreciate that!

[@timurramazanov9131]

This course is exactly what I needed! Thank you so much for your work Allen!

[@seanallen]

You're very welcome!

[@marcusstephannordal6010]

Thank you for the course Sean! I was trying to find a course that covers more than just the very basics, and this is perfect! Been following the course over the weekend, and I am finally getting a solid grasp of Swift!

[@seanallen]

Glad it was helpful!

[@bdhaliwal24]

Great course. Sean you are an excellent instructor. I love your style of guided learning

[@sebastianpoliak]

Thank you for this amazing course Sean, exactly what I needed, keep up the great work!

[@deniskirisov]

What a coincidence that I’ve decided to build an iOS app and this sweet course was released on YT just a month ago! Perfect timing. Thanks a lot man, you managed to fit A LOT into these video, it’s a great intro. Now I have a better understanding of SwiftUI and how it works

[@seanallen]

That's awesome to hear. Glad you enjoyed it. Best of luck with iOS!

[@unk511]

Thank you man for sharing so rich paid content, I am learning a lot! Wish you all the wealth you bring for who is watching.

[@retroroar]

Wow, I found this to be really great! This is the kind of step-by-step learning that I actually like with getting sufficient information without being drowned in unnecessary details. This made me a big fan!

[@seanallen]

Thanks for the kind words! Welcome to the channel :)

[@asfandiyar5829]

This could not have come at a better time. Was literally going through your older 10 hour course. Now I can go through this more updated course. Thank you soo much!

[@seanallen]

Great timing! Enjoy it!

[@bibeksaha4830]

Same Thank you so much@@seanallen

[@adimesic1]

Same here. Thank you @seanallen

[@camilol-shide3533]

I can't thank you enough Sean. Will decimate it this weekend. Truly appreciate your work. 🙏🏻

[@seanallen]

Please do!

[@palatfe8407]

Thanks Sean, You are master!! I start this video like 3 month ago but didn't have time to finish it, but today is the day. just want to say THANK YOU!!

[@seanallen]

Best of luck this time around!

[@inan_dev]

You're the only teacher who can teach people swift and iOS in such easy way. Keep this up man. Take love

[@seanallen]

Thanks for the kind words. Glad you liked it!

[@philipcraig5228]

Thank you so much Sean for this wonderful gift. Your channel is awesome !

[@seanallen]

Glad you enjoy it!

[@silcalderale]

Already finished the Swift Programming Tutorial, and I'm R - E - A - L - L - Y enjoying this one!!! 💃💃💃 👏🏻👏🏻👏🏻 Sean!

[@seanallen]

Glad you're liking the courses!

[@7themryze638]

Thanks a lot Sean! I wish you the best of the best! ❤

[@seanallen]

Thank you! 😃

[@TheSteak1984]

Thank you for the course! Helps a lot!

[@danielniels22]

22:36 view is destroyed 1:34:28 declarative vs imperative 2:16:37 GRID 2:52:39 viewmodel as class to hold state 2:55:38 view is created and destroyed all the time, so @state and @stateobject should be used to mark the properties coba deinit class observableobject 3:16:54 full sheet 3:53:41 NavigationStack 4:21:42 camera setup 4:53:39 UIAlert 10:02:33 async/await 10:50:35 @Binding and Binding 11:00:34 Link 11:07:54 SwiftUI loading indicator

[@TheMrPifagor]

Just watched the course from the begin to the end. Thank you Sean!

[@seanallen]

Hope you enjoyed it!

[@keyhanasga]

Thank you Sean, this course helped me A LOT. I was an Android Developer before and every other course that I watched was either too basic or too advanced for me to learn, but this video was just right. Keep up the great work.

[@seanallen]

Happy it was helpful! Welcome to the world of iOS :)

[@DocMacLovin]

This is the best i have ssen in quiet a long time. Thank you so much. Thank you for not being a kid making so called tutorials but on the opposite being a Swift vet knowing what he is talking about.

[@seanallen]

Thanks for the kind words. Glad you liked it.

[@vipinajayakumar]

Longest KZbin course I have watched! Thank you for making this freely available. Like your teaching style, repetitions/reviews etc. One thing I would have liked to see is testing, hand in hand with all the different features you showed us. I realise that's not everyone's cup of tea, but I wouldn't write an app for production use without any tests because I'd then be too scared to make any changes that might break it. It's probably also a good practice to teach beginners.

[@seanallen]

Glad you liked it! Testing is definitely a good practice, but I didn't include it in my beginner course because I thought it might be too much to learn all at once. My advanced course will have this.

[@BreakingBarriers2DIY]

Oh my! This is JUST the kind of thing you want to watch when looking at Swift UI for the first time. Such a great way of showing the basics and keeping you understanding "WHY" all along. Such superb talent at demonstrating and teaching. Instant subscription and now back to the course.

[@seanallen]

Thanks for the kind words :). Glad you liked it.

[@OlehZozulia]

Omg Sean i just finished your course for very beginners, and now u upload this…am i the luckiest person on Earth???? Thanks so much!!! You are doing such a great job!!

[@seanallen]

Great timing :)

[@dogecl]

I am following and completing the challenges. It's so good when I get almost the same look and feeling, but after I see your part it gets 10 times better and _swifter_ . I will make sure to complete it and update my experience (I'm just doing the 2nd app).

[@seanallen]

Nice! Keep it up 👍

[@gamedevelopercat]

I love your style! Thanks for everything

[@goanEngineer]

I generally leave online courses halfway, but this was so well made, enjoyed it till the end (especially appreciated the repetitions to hammer down the concepts!) and the projects really expose you to a lot of the necessary things that will help you build your own. Thanks Sean!

[@seanallen]

Glad you enjoyed the course!

[@federicocipriani7399]

Thanks Sean, this course was great! I was doing 100 Days of SwiftUI, but left for months due to other things happening in life. This helped me gaining back the knowledge, and honestly getting a better understanding of especially the things you discussed at the end about StateObject, etc. Also, I really like your "honest" way of coding, step by step, some mistakes that we new self-taught developers can also make, but learning how to fix them and move on. Thanks again Sean 🙏🏼

[@seanallen]

Happy to hear you like my teaching style. I also learned to code from videos on the internet so I very much remember what it was like when videos assumed too much knowledge. I do my best to not do that.

[@richard_mandona]

Hi, Federico. I also let go of 100DaysofSwiftUI. I see value in it, something just does not work, I tried return to it again. Though I can sit and code with Sean Allen for hours on end and leave out with something. I share the same experience watching Sean Allen’s courses.

[@Neds_Severed_Head]

This is awesome, thanks Sean!

[@seanallen]

My pleasure!

[@santoshpal3399]

Thanks a lot @seanallen. It's amazing course from your side. I want to learn swiftui but not getting proper guidance, but when I saw your video, it helps me to learn swiftUI. I really enjoyed it and looking forward to learn more things in ios from you. Thanks again.

[@seanallen]

Glad you enjoyed the course!

[@vahidfalahi2434]

Thank you Sean. This course is really helpful for me. I enjoy the way you teach SwiftUI.

[@seanallen]

Happy to help :)

[@michaelsaint-honore4479]

This is just awesome 🔥. Huge respect and appreciation for your sharing 🙏🏾. Love the way you explain concepts and how things works, for beginners in swift it’s completely understandable. Love from Paris. Thank you 🙏🏾

[@seanallen]

I appreciate that! Glad you found it helpful :)

[@Noborotno.09]

Thanks, Allen, you really a life-savior.

[@seanallen]

Happy to help!

[@user-ef9gf5kx3c]

Great Video! So helpful and easy to understand!

[@PhadeF]

awesome so far. hoping to understand datapassing and fetching / setting well enough by the end. thanks for the course

[@seanallen]

You are welcome!

[@vitaliyspb88sviridov]

Awesome course! After 3 hours i think i almost master of swiftUI. Thanks for your hard work!

[@seanallen]

Glad it was helpful!

[@mahankh6839]

Sean as a new Ios developer I extremely enjoyed your course and learn a lot of new concepts. Thanks a lot man. You are awesome

[@seanallen]

Happy I could help :)

[@Sanche87]

Thank u so much Sean ! 18:00 if u cant make background color with ignoring safe area, just use Rectangle() .fill(LinearGradient(colors: [.indigo, .purple, .orange], startPoint: .topLeading, endPoint: .bottomTrailing)) .ignoresSafeArea()

[@sinanguler374]

Amazing job as always, thanks Sean

[@seanallen]

Glad you enjoyed it

[@aarons.6741]

I always wanted to start learning Swift and SwiftUI. But I never found the right starting point. I just finished this video course and feel like that was the perfect start of my Swift journey. Thank you so much🍀

[@seanallen]

Happy to hear you enjoyed the course! Onward 🚀

[@Cerezo074]

This is the best course of SwiftUI I've ever watch, thanks a lot for your content Sean(Awesome quality).

[@seanallen]

Wow, thanks!

[@sanjeev5547]

Did the code work they way Sean had it in his video, or did you have to modify anything to get it to work for you?

[@sachinkolhe1572]

Your videos are priceless for me. I have started my iOS development journey recently. Your videos made me go deep in the concepts. Thank you so much.

[@seanallen]

Great to hear! Keep at it!

[@ra.elsayied]

Thank you for your hard work our guru (Sean) ! this course push me to start swiftUI and throw out damn UIKit 😁 Good bless you ✌

[@sergeysafiullin446]

Thanks, Allen!!!

[@dickyalamsyah790]

Wohooo, thank you Sean!

[@seanallen]

My pleasure!

[@ChristopherOcañaAmezcua]

¡Bravo! Qué buen curso. ¡Gracias!

[@normalone9199]

Asked my friend yesterday today Sean uploaded it ❤ thanks Sean

[@seanallen]

No problem. Enjoy!

[@gilangsinawang7361]

Really great content. I've been in iOS industry for 4 years, never had any project with SwiftUI. Thinking of trying to keep up and found this course. Everything is well explained and my experience with UIKit makes this course feels like a breeze. Thank you~

[@seanallen]

Glad it was helpful!

[@D0iego]

Thank you so much!! Your explanations are so great!

[@seanallen]

Glad you think so!

[@bklyntrev6774]

YOU ARE THE MAN

[@longnguyen-od1qy]

Love this shit!! Keep it up my man, been loving your teaching style with detail explanation!

[@seanallen]

Glad you like my style! Enjoy the channel 👍

[@pickeld5616]

Cant believe its free. Thanks Sean!

[@seanallen]

Hope you enjoy it!

[@7mach]

Best course! Thanks a lot!

[@seanallen]

You are welcome!

[@pereira4097]

Thanks Man! God Bless you for that!

[@seanallen]

Glad it helped!

[@elaidzhashchukin7268]

Thank you, Sean! I love it 😎

[@seanallen]

Glad you like it!

[@unklarnamenpflicht]

For complete beginners with no experience at all, this course is very fast paced. I started it after I got kinda deep into UIKit and it helped me a lot. Specially changing from UIKit (for which I'm a complete newbie), it's hard to understand how to pass data between views in SwiftUI. Sean explains very well how this works with examples. The ways of making API Calls helped me a lot with new ideas for a small project I am working on. Thank you a lot!

[@seanallen]

Great to hear! Glad you enjoyed the course :)

[@indianfyre]

What a chad move! Thank you Sean, as a Swift only dev, this is gonna be amazing!

[@seanallen]

Haha, I hope like it!

[@user-fc8hd6kh2f]

giga-chad!

[@FranciscoHernandez-ij3kd]

You are a saint Sean, your way of teaching is always clear, clean, well structured and you take the time to explain everything, much appreciated and thank you.

[@seanallen]

Thank you for the kind words :)

[@Human_Glitch]

This was excellent! Definitely going to checkout your other courses.

[@seanallen]

Glad you liked it :)

[@thriveflourishmotivate]

You're such a good teacher THANK YOU

[@20kgrand25]

this truly is an excellent course! well done.

[@seanallen]

Thanks! Glad you like it.

[@KhanhQuang-ff2ve]

great video, I just switched from UIKit code to SwiftUI. Thank you very much.

[@Henry-xy3fr]

Thank you very much Sean, great course!

[@seanallen]

Glad you liked it!

[@muhammedyildirim2376]

Really valuable resource for the community, thank you for these courses.

[@seanallen]

My pleasure!

[@OyunAgames]

Hey Sean! Cant wait to learn from you bro. Thanks

[@seanallen]

Have fun learning SwiftUI!

[@kaushik.aryan04]

Thank you so much for making it free It helped me out a lot.

[@seanallen]

Happy to help!

[@Krafcik226]

Really amazing course, doesn't feel like it's 12 hours and I mean it in a good way. It's so well done and listening to you and learning from you is a pleasure so hours feels more like minutes 😄

[@seanallen]

Wow, thanks for the kinds words. Making 12 hours feel like minutes is a high complement :)

[@nabingurung4122]

I'm a Flutter Developer mainly. But, watching this full video builds my confident on Native IOS Development. Thanks a lot.

[@victorkibichy4594]

same

[@mkbfhd]

gosh thank you so much, sean 😍🔥

[@seanallen]

No problem 😊

[@devhopes]

Awesome tutorial - Took me a while to go through over 11 hours of tutorial but i took notes, screenshots, etc to reflect back. Great Job! 😊🇨🇦. Many Thanks!

[@seanallen]

Happy you got through it all and that you liked it.

[@terbushon9842]

Hi @devhopes, by any chance, can you share the notes, that you took? Too late this idea came by my mind XDD . IF you can, thanks in regards!

[@yoon_ro_]

Already in my study playlist, can't wait to follow

[@seanallen]

Hope you enjoy!

[@airysm]

Damn I just bought this course about 2 weeks ago, I should have waited lol! No problem though, Sean has been an amazing source of help in my ios dev journey and I don't mind supporting

[@seanallen]

I appreciate that! Unfortunately, there's never a good time to make it free. A group of people will always have just purchased :(

[@BIOHAZARD_V2]

This came at the perfect time for me. Just got my first Mac for this!!!

[@seanallen]

Nice! Hope you enjoy it 👍

[@roadcoolibiza]

thanks Sean, I follow the course with great interest, I work with Xcode 15.2 and it takes some kicking to make the code work. An old 55 year old Italian developer who is struggling a bit to keep up but you are really good, congratulations! 🙏

[@seanallen]

Glad it's helpful! Keep at it 💪

[@clayfulgham21]

Excellent course! I am a decent SwiftUI programmer and learned a lot! THANKS

[@seanallen]

Happy to help!

[@deepamdhakal8848]

Hey jean, I hope you're all right. So I've recently got an internship as an IOS DEVELOPER and you're the literally best for teaching swift. Lot's of love from NEPAL 🇳🇵🇳🇵🇳🇵

[@seanallen]

Best of luck!

[@johnfrancis9260]

That's my dream job and I love how you do it, I am taking C++ this semester I wish I can do that too.

[@kianavila1698]

Hello Sean - After watching all your videos for past 2 months - Now I created a new playlist for you. I have done all declarative things easily by doing copy paste using stackoverflow knowledge. Now you motivated me to learn the things to do clearly. Im just following your way. Thanks for those videos. its save more developers life.

[@seanallen]

Happy I could help! Keep up the good work.

[@mrzafir]

thank you so much!. really appreciate.

[@seanallen]

You're very welcome!

[@ToanTrancodeblog]

Thank you so much!

[@shazimulkaif1103]

Amazing Tutorial Thanks a lot, you just save my live.

[@seanallen]

Glad it helped!

[@gabecompsci]

thank you sean!

[@seanallen]

No worries

[@jumancamacho]

You are the best! Thank you for sharing

[@seanallen]

Happy to help!

[@muhammadiqbalpradipta9167]

I just following your instruction and explanations. exactly straightforward, well structured and you take the time to explain everything. Thank you soo much! 🙌 regards from indonesian people...

[@seanallen]

Glad it was helpful!

[@andreas39157]

This is some good Stuff Sean. Compared to 100 Days of SwiftUI with Paul. I find this extremely easier to understand and actually a sense of learning! (Pauls coursers are good also, it's just not for me)

[@kenng28]

Lovely youtube. I just read about 1 min . Found what I need and soft my problem . From hk

[@seanallen]

Glad it helped!

[@User1234-sp7cd]

Thank you very much! ❤

[@seanallen]

Happy to help!

[@kotzblitz7716]

Thanks so much for providing your knowledge.

[@seanallen]

My pleasure!

[@Adiyat_Coto]

Sean, God bless you. Thanks a lot.

[@seanallen]

Happy to help!

[@Bro_Code25]

Incredible. If I make a fortune from my app ideas I will share it with you my friend. Thank you, I have subscribed and shared with uni friends. Much love. Simon

[@seanallen]

I appreciate you spreading the word, Simon!

[@tarikios]

Hey Sean, You did great works again.🎉 I`m trying to be a iOS Developer and your videos helps me a lot. Especially the way you explain things is pretty awesome. Just one request from you: Please add more UIKit releated videos, or payable content

[@seanallen]

I'm kicking around the idea of a Modern UIKit course next year.

[@iwillburn]

Sean! Thanks so much bro

[@seanallen]

Happy to help. Enjoy :)

[@martygo]

This content should be KZbin's historical heritage. 🤩🤩.

[@AF-cz3xl]

U da man Sean!!1!

[@seanallen]

I appreciate that!

[@bruinflight1]

I... WOW. Thank you!