Antoine v.d. SwiftLee
@twannl
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I teach 150K developers how to write better apps faster through my developer tool, blog, and newsletter. Join my newsletter to get started 👇🏻
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Joined December 2009
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Tim for
#Ukraine
️ wearing a blue sweater and a yellow Apple Watch band during the
#AppleEvent
🇺🇦 🙏🏻
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Can the 1 user in this image please contact me? I have some questions 👋🏼
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Oh yes, Xcode 11.4!! 🤩
"Simulator supports simulating remote push notifications, including background content fetch notifications."
#swiftlang
#iosdev
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I'm proud to announce we're now officially Mr. & Mrs. van der (Swift)Lee 😍💍
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This really is a game-changer! It's so much easier to test push notifications now. Simply add a test payload.json in your repository and execute it from the terminal 🚀
#swiftlang
#iosdev
Oh yes, Xcode 11.4!! 🤩
"Simulator supports simulating remote push notifications, including background content fetch notifications."
#swiftlang
#iosdev
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I'm building iOS apps since 2009, worked on 10+ different large apps, and developed several personal apps.
Here are 11 lessons I learned the hard way (so you don't have to)
👇
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Last year, Bernie gave a perfect example. I followed up today, and Maaike said yes! 😍💍
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Many apps are using Network Reachability checks in the wrong way.
Yes, I've seen this in many apps I developed over the years.
Here are my learnings 👇
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Xcode 12 introduced the option to configure a launch screen per URL scheme.
This is great for aligning your launch screen with your app's first page upon deeplinking 🎉
#swiftlang
#iosdev
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A crazy year ends with good news: SwiftLee junior will arrive in March 2021! 👶
Getting a baby is not always easy. A surgery, many injections, insecure times, and mental challenges when newborns arrive around you. Maaike and I are super happy to finally be able to look ahead 🙏🏼
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A crazy rollercoaster ended today, getting a baby is not always easy! ☝🏻
Let me introduce to you: Sep van der Lee 😍
A crazy year ends with good news: SwiftLee junior will arrive in March 2021! 👶
Getting a baby is not always easy. A surgery, many injections, insecure times, and mental challenges when newborns arrive around you. Maaike and I are super happy to finally be able to look ahead 🙏🏼
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Dragging an APNS file into the simulator is just one of the three ways you can test remote push notifications on the iOS simulator.
Learn about all possibilities in my blog post:
#swiftlang
#iosdev
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One of my tests started to fail today; I wonder what's going on 🤔 Maybe I'm too old to understand? 👴🏼
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🚀 BIG NEWS: I'm Going Indie & Launching My First Course! 🤩
After 7.5 amazing years
@WeTransfer
, I'm leaving a truly special company and team. It's bittersweet, but going fully independent is a dream come true.
Read my full story:
🌟 New Course: From
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If you're still using print statements, you're doing it wrong.
The future of logging is OSLog
Here's why 👇
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Launching
@rocketsim_app
3.0
💸 It's free!
🚀 Improved GIF & MP4 quality
🤩 Drag right into App Store Connect, GitHub, and more
Download now:
#swiftlang
#iosdev
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Full-screen mode is now possible by default with Xcode 12. Learn how this works and how you can do the same in Xcode 11 today:
#swiftlang
#iosdev
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By extending the boolean type in Swift we allow ourselves to create a readable conditional View Modifier in SwiftUI.
In this case, to only apply a background color on iOS 13.
#swiftlang
#iosdev
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Multiple of the apps I developed got featured in the App Store.
Developing apps since 2009, I learned quite a bit about what works.
Here's what you need to know 👇
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I'm happy to announce that I started 2021 with a promotion
@WeTransfer
. I'm now officially called a Staff Engineer 💪🏼
The best thing of all:
The role allows me to share even more knowledge both in and outside of WeTransfer. 🚀
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One thing I learned from developing apps for over 10+ years.
Whenever I start a new app, I use App Groups immediately. Even though you don't need to share preferences from the start, you'll thank yourself later ☝🏼
#swiftlang
#iosdev
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What is better than a blog post about Combine?
A
#swift
playground!
👋🏻 Start playing with Combine
🤓 Basic principles explained with code examples
🚀 Just getting started, more to come!
#swiftlang
#iosdevelopment
#xcode
This week’s blog post gets you started with Combine!
🤓 Basic principles explained
🧐 When to and when not to use it
🚀 Code examples to get you started
#swiftlang
#ios
#iosdevelopment
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Months of rewriting code and tests to async/await.
Here are 5 lessons I've learned 👇
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Thinking of creating an open-source tool to clarify error strings like "Domain=NSCocoaErrorDomain Code=1590 \"The operation couldn't be completed. (Cocoa error 1590.)".
Let me know if you would use this by liking this tweet. If it's more than 100 likes, I'll build it!
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I learned something new while searching in Xcode. Here, I'm searching for all strings in my project.
1. Type ""
2. Insert pattern in-between
3. Select Any Character
Much easier compared to regexes!
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When Xcode is not really helping you, try out using print to read out a variable 👌🏻
#swiftlang
#iosdev
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Merry Christmas from the SwiftLee Family 🎄🎉
Big news as you can see: we're expecting a little 👶🏻boy this March! 😍
Getting a baby is something special and not something you should take for granted. We got our son Sep after many hospital visits, injection needles, and an
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When Xcode is not really helping you, try out using print to read out a variable 👌🏻
#swiftlang
#iosdev
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New in the iOS 14 SDK, closure based UIControls 🤩
👌🏻 Works with all UIControl based elements like UIButton, UITextField
👉🏻 Use carefully, closures based actions are discoverable but large methods can decrease readability
#swiftlang
#iosdev
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Presenting multiple sheets can easily result in a lot of boilerplate code. By creating a sheet coordinator, you can reuse sheets, reduce code within views, and present sheets from within others.
#swiftlang
#iosdev
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11 years of experience, many articles written, but I'm still searching for these things.
It's way more important to know how to find answers than to know everything 🙏🏼
If you like, these are my Google tips and tricks:
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Informing your users about a poor connection is essential.
Let me share the essentials:
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It’s been a typical rollercoaster, but I can proudly say we became parents of our second son Jip 🥰
Both mom and son are doing great!
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When Xcode is not really helping you, try out using print to read out a variable 👌🏻
#swiftlang
#iosdev
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Quite a dream came true today 🙏🏼
Ever since I was young, I have loved cars, for which this one definitely counts as a dream car for me!
"Work hard, play hard." 🙌
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As app developer, it's essential to know the difference between a deeplink and Universal Link.
One of them results in a better user experience.
👇
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When Xcode is not really helping you, try out using print to read out a variable 👌🏻
#swiftlang
#iosdev
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Tired? Yes! Do I care? No 🤣 what an incredible feeling ❤️
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Dragging an APNS file into the simulator is just one of the three ways you can test remote push notifications on the iOS simulator.
Learn about all possibilities in my blog post:
#swiftlang
#iosdev
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Before diving into the
#wwdc23
, I'm finishing this new
@rocketsim_app
update.
Showing the distance between rulers 🤩
Download now:
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It’s going to be a mini Antoine (for at least a week) 👶🏻💙🎉
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The only image you'll need to send to your IT support or managers today 🤓
"I'll deliver the feature like 3.7 times faster!"
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Xcode 12 introduced the option to configure a launch screen per URL scheme.
This is great for aligning your launch screen with your app's first page upon deeplinking 🎉
#swiftlang
#iosdev
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Today’s pair programming session feels quite one-sided 😴😴😴
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Developers always seem to be relieved and surprised.
Yes, I'm still using Google, even after 14 years of development.
Yes, I also Google for simple things like "NavigationBar Background Color"
Don't optimize for knowing everything: optimize for finding all your answers 💡
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After over 10 years of development I'm still searching stuff on Google every single day. You simply can't know everything!
One of those things is searching to solve EXC_BAD_ACCESS errors. It was time to write a blog post about it!
#swiftlang
#iosdev
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Happy 29th birthday to me! 🎉🥳
Another year in which I can better focus on writing Swift code than trying to design a birthday hat on my profile avatar 😬
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What a year so far!
Today, I've crossed the $4000 Monthly Recurring Revenue 💪🏼
That's 4x more compared to January 🤯
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Tip: It's Xcode, not xCode.
Makes you look much better when applying for an iOS role 🙈
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Detect invalid use of AppKit, UIKit, and other APIs from a background thread using the Main Thread Checker.
Enabling this by default keeps you safe and prevents bugs and crashes 💪🏻
#swiftlang
#i
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Proudly passing the 20K, boosting my motivation for bringing you even more Swift related content 🎉🎉🎉
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You should not underestimate Xcode Bookmarks.
They are my way of managing todos and code references.
I created groups, a to-do list, stored search queries & listed all types conforming to Macro.
#swiftlang
#iosdev
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Some simple URL related extension in Swift can help make your developer life a lot easier! 💪🏻
#swiftlang
#iosdev
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If your app(s) offer account creation, you should take this new App Store Review Guideline into account. Delete account functionality is required!
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When Xcode is not really helping you, try out using print to read out a variable 👌🏻
#swiftlang
#iosdev
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What if I tell you Xcode Previews can be used without SwiftUI? Without dropping iOS 12?
🚀 Speed up development
👌🏻 Live previews of your views
#iosdev
#swiftlang
#ios
#iOS13
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Great reminder to myself (and you!)
- Always start with an App Group
- Use it for both User Defaults and Core Data
- Be prepared for app extensions accessing the same database
Thank me later 👋
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Sometimes, you need a little more control while comparing a design 🤌🏼
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