Joined March 2021
- Tweets 336
- Following 319
- Followers 467
- Likes 1,718
47 Photos and videos
27 Sep 2024
I've been working on version 7 of the geotrainer app the last months.
The flag quiz got a big update with two new quiz modes, and there is much more to discover!
App Store: apple.co/2PJU566
Tour: youtube.com/watch?v=2_xdja-z…
#iOSApps #iOS18
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Ralf Ebert retweeted
6 Jun 2022
First few minutes with Xcode 14 and I have tears of joy for how fast the debugger is. The app starts in a breeze, breakpoint hit and you can start printing variables as if we were in 2022. Amazing.
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6 Jun 2022
🔥 Looking forward to the collaboration API, scribbling in Freeform, using the iPhone as a webcam.
2 Jun 2022
Here's a quick tour through the geotrainer app and what's new in version 2.1.
youtube.com/watch?v=-JaAZcMP…
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7 May 2022
WWDC'22 wishlist:
* Code completion always working
* Debugger working without long delays
* No more "compiler is unable to type-check this expression in reasonable time"
* No more "Making Apple Watch ready"
* No new features that could break any of those.
Please. Pleeeaaase.
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20 Apr 2022
In case you ever wondered, both CurrentValueSubject and a ObservableObject property Publisher immediately send a notification with the current value when a new subscriber is added.
Now, tricky question: Is there a way to require this behaviour with a protocol?
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13 Apr 2022
What format do you like best for getting training materials after a developer training course?
46%
PDF with slides/snippets
8%
Printed folder/book
8%
App
38%
Online access
13 votes • Final results
Ralf Ebert retweeted
6 Apr 2021
Setting a random background color is a great way to detect an accidental SwiftUI loop. The tricky part is understanding what triggers the loop tho.
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11 Apr 2022
🎉 My geography quiz geotrainer.app got mentioned on the German app store. This is a good motivational boost for the upcoming release I'm currently working on.
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Ralf Ebert retweeted
7 Apr 2022
With a simple extension you can make it really easy to add #SwiftUI views as a subview to your UIView. @WeTransfer we always consider writing new features in SwiftUI to speed up our transition.
avanderlee.com/swiftui/integ…
#swiftlang #iosdev
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24 Mar 2022
Has anyone seen TestFlight demand to accept new "Apple Media Services Terms" when testing to buy an in-app-purchase which then always results in an error "no connection"?
This one is really spoiling the mood here right now.
stackoverflow.com/questions/…
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20 Mar 2022
I hope we get something like AsyncView in the next version of SwiftUI. Like AsyncImage but for data.
Would be so cool to be able to load data and have a default mechanism for progress indication and error handling.
For now, here is package for that:
github.com/ralfebert/AsyncVi…
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20 Mar 2022
A quick walk-through how to implement the observer pattern in Swift for iOS Apps.
How to send an event in one object and subscribe to events in another object.
The Combine framework provides a nice abstraction for this use case.
youtube.com/watch?v=XN2Tu3go…
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1 Mar 2022
#SwiftUI Advanced Tipp:
How to use TextField with optional String? properties:
Use a custom-defined ?? operator which converts between Binding<String?> (.none) and Binding<String> ("").
Source code / Swift package:
github.com/ralfebert/SwiftUI…
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1 Mar 2022
How do you represent the case "no value/unknown" for strings?
89%
var name : String? = nil
11%
var name: String = ""
19 votes • Final results
Ralf Ebert retweeted
8 Feb 2022
Dependencies struct defines all the low-level pieces that we need to implement our view model. This approach exposes only necessary low-level logic to our view model. The SearchViewModel defines its own dependencies and requires them to compile.
swiftwithmajid.com/2022/02/0…
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25 Feb 2022
For the Views deep-down in a SwiftUI app, use only Struct types, passed as value or binding.
Build complex logic (async loading etc.) as wrapper View around those.
Can be tricky to keep the line between the layers. But it's well worth it for maintainability enabling Previews.
ALT Tipp: Use struct-based inner views so you can easily setup PreviewProviders
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