Seb Vidal (@SebJVidal) / X

Seb Vidal

7,783 posts

Seb Vidal

@SebJVidal

iOS Developer 👨🏽‍💻 Chairman of the _UINavigationBarPalette fan club.

Manchester, England

Joined June 2012

Pinned
Seb Vidal
@SebJVidal
Aug 13, 2025
Here it is! What's New in UIKit in iOS 26. This was a pretty mammoth undertaking, and it shows – a whopping 64 minute read! I'll be keeping this article up to date over the beta cycle. Possibly littered with errors. Shout at me if I've made any stupid mistakes. Link below 👇
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Seb Vidal
@SebJVidal
Sep 27, 2024
New GitHub feature just dropped... 😍
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Seb Vidal
@SebJVidal
Oct 12, 2023
Dynamic Island is literally unusable 🤬
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Seb Vidal
@SebJVidal
Jul 14, 2024
Apple use real life UIVisualEffectViews in their stores 😌 Looks like UIBlurEffectStyleSystemMaterial to me…
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Seb Vidal
@SebJVidal
Aug 3, 2024
Spent some time reverse engineering Apple Music and Podcast's search chips UI 👀 Interestingly, there's no public or private API to achieve this, _and_ both Music and Podcasts have different implementations of the identical interface 🫠 Anyone interested in an article on this?
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Seb Vidal
@SebJVidal
Jul 10, 2024
Visual effects on iOS are actually pretty complicated! Most visual effects comprise of *at least* 4 compositing filters. Some simple ones like gaussian blur, saturation and brightness. But also some more complex stuff like colour/vibrance matrix multiplication, and luminance
Diego
@1000kilobytes
Jul 10, 2024
why is it so hard to recreate iOS UI materials???
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Seb Vidal
@SebJVidal
Oct 19, 2024
Custom view controller transition I built at work this week. A few interesting engineering challenges… 1) Presenting the half sheet during the custom transition. 2) Animating the frame/transform of an MKMapView! 3) Ensuring continuity of the activity indicator before/after the
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Seb Vidal
@SebJVidal
May 4, 2024
Alright, after much demand, here it is! 😃 The Apple Music/Podcasts UI complete with a custom view controller transition. Sadly, a couple of private APIs are required for variable blur and display corner radius... Built with Swift and UIKit. Link to the GitHub project 👇🏽
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Seb Vidal
@SebJVidal
Jun 18, 2024
👀
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Seb Vidal
@SebJVidal
Jun 9, 2025
The new UITabBar effects on iOS/iPadOS are powered by a new private UIKit view called _UILiquidLensView. It's made up of a _bunch_ of subviews, lots of familiar faces: _UIPortalView, CABackdropLayer, CAFilter. There even appear to be some new CAFilters specifically for the
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Seb Vidal
@SebJVidal
Feb 22, 2025
Huge news for _UINavigationBarPalette fans... 😄 In iOS 18, Apple added a new private _topPalette property to UINavigationItem, complimenting the existing _bottomPalette. This lets you pin a custom view to the top of your UINavigationBar. Seen a few system apps use this
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Seb Vidal
@SebJVidal
Jul 13, 2023
Just updated this transition to use the cheeky `UIScreen._displayCornerRadius` API 🤓 Will anyone ever notice this? No. But I will 😌
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Seb Vidal
@SebJVidal
Jan 17, 2025
I promised you a zinger, so here's your private API of the day... Meet _UIContextMenuAccessoryView and UIContextMenuInteractionDelegate_Private's _contextMenuInteraction(_:accessoriesForMenuWithConfiguration:) method. This enables iMessage-like accessory views to be displayed
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Seb Vidal
@SebJVidal
Apr 29, 2025
My only hope for iOS 19 is that Apple unifies the appearance of bar button items across the OS 🥲
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