I'm developing an iPadOS 18+ application that uses a UITabBarController, styled as a sidebar, to serve as the primary navigation interface. This setup includes 20 different tabs, each representing a distinct section of the app. For the user experience, each tab needs to present a master-detail interface, implemented using a UISplitViewController. The goal is to allow users to navigate between tabs via the sidebar, and within each tab, access related content through the split view's list-detail pattern. The Problem: Currently, my implementation involves instantiating a separate UISplitViewController for each tab, resulting in 20 unique split view instances embedded inside the UITabBarController. While this works functionally, it leads to significant memory usage, especially after the user opens each tab at least once. The accumulation of all these instantiated view controllers in memory eventually causes performance degradation or even memory warnings/crashes on lower-end iPads. The Question: What is the best approach to implement this type of architecture without running into memory management issues? Specifically: Is there a way to reuse or lazily load the UISplitViewController instances only when needed? Can we unload or release split view controllers that haven't been used for a while to reduce memory pressure? Would a custom container controller be more appropriate than using UITabBarController in this case? Are there iPadOS 18+ best practices or newer APIs that support this kind of complex multi-tab, multi-split-view structure efficiently? Any advice on how to optimize memory usage while preserving the sidebar navigation and split view layout would be highly appreciated.

As of right now Icon Composer does not support creating app icons for visionOS and tvOS. It appears that only system apps can provide glass icons for those platforms. How should developers handle this? In extreme cases, the flat icon on those platforms will look wildly different from their glass counterparts. From what I have seen visionOS and tvOS also do not apply any automatic treatment like on iOS where legacy icons get a glass effect. So, third party app icons are just going to look out of place for (hopefully just) a year on those platforms? What is the recommended approach here? You could obviously fake the effect, but I feel like that would be worse.

Add slim horizontal bar at the top of the Notification Center that displays the apps with current notifications, along with a badge showing the number of notifications for each app. Each app icon is clickable, allowing users to filter the Notification Center and view only the notifications from the selected app. The first button in the slider should be “All” to show all notifications, followed by app icons (Excluding notifications summary) This bar Appears only when notifications are from more than one app. Hidden if there’s only one app in Notification Center (no need to filter). Benefits: Better organization: Helps users quickly identify which apps have unread notifications. Reduced distraction: Allows focusing on notifications from one app at a time. Easier navigation: Especially helpful when notifications from multiple apps are mixed together by time. Faster interaction: Saves time by letting users jump directly to the relevant group of grouped or multiple notifications.

Hey there! I'd love to know if theres a way where you can animate items between ZStack and VStacks? Just like the native iOS notifications on the Lockscreen stack at the bottom and if tapped, they convert from a Stack to a List - I have a list with items, displayed in a VStack, and I make the list collapsable when swiping down, where the items stack behind eachother with a progresisve reduction in opacity & scale, but I havent figured out a way to animate the items between the list and the stack - where you can visually see items starting to overlap and stack ontop of eachother when collapsing the list.

Dear Apple, please make sure this bug gets delivered to whoever is responsible. That's all I ask. Please don't let it sit for months unassigned. This is, by far, the worst bug I've ever found with the macOS wallpaper system. FB21532401 If you own a 13" 2020 or newer MacBook pro model, set to the default resolution, and are running macOS Tahoe, macOS will significantly degrade the quality of any image set as wallpaper. When a still image is set as the wallpaper on macOS Tahoe, on some display configurations, the systems downscales the image to an incorrect size, resulting in pixelated wallpaper. The problem is exacerbated by the fact that macOS Wallpaper Agent appears to be using a less than ideal downscaling algorithm, which results in Super Mario Bros’ type pixelation (nearest neighbor) as opposed to any other reasonable modern method (like bicubic.) The issue does not repro on macOS Sequoia. Every model MacBook we’ve tested offers some resolutions with some form of this problem, but the 13” is the only one where it is notably awful. The most evident default case of this is the 13” MacBook Pro models with a 2560x1600 physical display (for example, 2020 MacBook Pro 13” (17,1.)) These models have a physical display resolution of 2560x1600, and a default scaled resolution of 1440x900. The relationship between the physical resolution and scaled resolution is not an even ratio (1:1 or 2:1), which seems to be the common condition under which this issue occurs. Repro steps: Set the systems display resolution to the default resolution - ideally on the model described above (see details on this below) Set a high resolution image (in this example 5120x2880) as the system wallpaper using any method Results: On the model described above, Wallpaper Agent will generate and display a 1440x810 image as the wallpaper. It should be generating and displaying at a minimum of 2560x1600, or more appropriately at 2880x1800 which is the proper 2X resolution. This can be confirmed by viewing the properties of the generated images in the macOS wallpaper cache here: ~/Library/containers/com.apple.wallpaper.agent/Data/Library/Caches/com.apple.wallpaper.caches/extension-com.apple.wallpaper.extension.image On modern Apple systems, the only situation in which the wallpaper should be generated at 1X is when the physical resolution and set resolution are 1:1. In any situation where the physical resolution is larger than the set resolution, the image should be generated at 2X the set resolution. As far as we can tell, this issue impacts any format, and any resolution of image, and occurs independent of the set image resolution.

Hi, Just want to check is there a requirement for Apple that for App Digital Wallet provisioning that Apple Pay button is not more than 2 taps away from Home Screen?

I've noticed that the App Store app tends to make the selected tab indicator darker on light mode and lighter on dark mode. Is there any easy way to ensure better legibility out of the box with Tab View (SwiftUI) when using the tint modifier with custom colors?

Hi, is it me or latest beta has pronlem with brightness? i have iPhone 16 pro, and now i must keep disabled auto brightness , at keep slider more or less at maximum, in order to clearly see the screen. fabrizio

Hi everyone, since updating to Xcode 26 Beta 3, I’m seeing some really strange behavior. I just changed the color of a Color asset in my SwiftUI view – literally just switched from one named color to another – and suddenly: • Previews stopped working completely, with vague or no error messages. • Even when I changed the color back to what it was before, the previews still refused to build. • In addition, Xcode no longer restores the open tabs/windows when reopening the project. It just shows a blank editor every time I open it. This all happened without touching any project settings or code structure – just a simple color swap. Has anyone else run into this with Xcode 26 Beta 3? Would love to know if it’s a known bug or if there’s a workaround (besides nuking Derived Data, which I’ve already tried). Thanks!

I'm using the new badge feature for UIBarButtonItem, but it's not working properly for me when transitioning between view controllers. I have two view controller with various right bar button items. In the first view controller the first button (the one with the bell) has a badge with a numeric count. The second view controller has the same button but in the third position. When I push the second view controller, it seems that the badge maintains also the old position, so I see two buttons with badges instead of one. What can I do to fix this?

Hi, Normally we need many shades of gray in any App and Apple system have only 3 , Primery, Secondary, and Gray, so to make Gray regress that automatically adapt to Dark Mode we just use opacity on these colors ? there's no system built in Gray degrees ? Kind Regards

Where is the Figma App Icon Template mentioned in the Developer session https://developer.apple.com/videos/play/wwdc2025/361?

Context & Issue I am developing an iOS application. My app icon uses colors that are relatively close to each other. When the user enables Accessibility → Display & Text Size → Color Filters → Grayscale (or similar modes), the icon becomes harder to distinguish because it loses color and contrast is reduced. Goal When iOS switches to grayscale mode, I want the app icon to maintain good contrast between its elements so it remains clearly recognizable. What I’ve tried Redesigned the icon with more contrasting colors. Added strokes/outlines, but it still doesn’t look much better in grayscale. Researched how iOS renders app icons when grayscale is enabled, but couldn’t find a way to override or provide an alternative icon. Specific questions Is there any API or mechanism in iOS that allows providing a different version of the app icon when the user has grayscale mode enabled? If there’s no direct API, are there any best practices for designing iOS app icons to ensure good contrast when converted to grayscale? Do we have to design grayscale version for app icon? Thank you!

I have the June 2025 version, but I'd like to find the 2022. There was something removed from the 2022 that I would like to check out.

I have an app that displays a MapView. While I am in light mode everything is fine. I can scroll around the map and my overlays (made by UIVisualEffectView containing an UIGlassEffect) stay light and look well! As soon as I change my phone to dark mode, depending on what's underneath the buttons (a light residential area or darker wooded areas) some of my buttons change color. But not all, only where it's supposedly lighter or darker underneath. This makes my whole UI look strange. Some buttons bright, some dark. Is there a way to lock a "color" or interfaceStyle to the effects-view? In light mode everything is fine, but in dark mode it just looks super strange.

On iOS 26 beta 3, my app and some other apps got greyed out app icon. It only happens in Default (Light) appearance. Apple automatically converts third-party app icons to support Liquid Glass, but is there any specific requirement with third-party icons to avoid above greyed out app icon issue?

Hi everyone, I've noticed that on iOS 26 beta 1 through beta 4, when using a List with the .plain style, the section header overlaps with the cell content below it, as there is no background for the header. This creates a poor visual experience. Additionally, when using NavigationSplitView on iPad, the second column's list always shows this issue. Is this an intentional design change, or just a temporary issue? I haven't found a good workaround so far. Thanks! FB19066489

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Can the vehicle‑side UWB module, acting as a Nearby Accessory, perform ranging with multiple iOS phones simultaneously while iOS cell uses background ranging with the vehicle‑side UWB (which involves BLE GATT services)? I mean, when the IOS cell works in the background, it will read the nearby gatt characteristic automatically. If there were multiple phones perform ranging with the accessory, the read characteristic from the accessory side, what shall its content be? Or does the accessory only perform ranging with one phone at a time?

I found that on my cutomer's mac device, webflterproxyd start interferiing with the NE traffic. Tried to stop it, but "screen time" was not enabled at all. Who started this webfilterproxyd process and how to stop it?