We've seen a spike in crashes on iOS 18.4 across both iPhone & iPad. We can't reproduce it, but it looks like it happens when the app goes into the background.
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Selecting any option will automatically load the page
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I have a UITextView that contains paragraphs with text bullet lists (via NSTextList). I also implement NSTextContentStorageDelegate.textContentStorage(_:, textParagraphWith:) in order to apply some custom attributes to the text without affecting the underlying attributed text. My implementation returns a new NSParagraph that modifies the foreground color of the text. I based this on the example in the WWDC 21 session "Meet Text Kit 2".
UITextView stops rendering the bullets when I implement the delegate function and return a custom paragraph. Why?
func textContentStorage(_ textContentStorage: NSTextContentStorage, textParagraphWith range: NSRange) -> NSTextParagraph? {
guard let originalText = textContentStorage.textStorage?.attributedSubstring(from: range) else { return nil }
let updatedText = NSMutableAttributedString(attributedString: originalText)
updatedText.addAttribute(.foregroundColor, value: UIColor.green, range: NSRange(location: 0, length: updatedText.length))
let paragraph = NSTextParagraph(attributedString: updatedText)
// Verify that the text still contains NSTextList
if let paragraphStyle = paragraph.attributedString.attribute(.paragraphStyle, at: 0, effectiveRange: nil) as? NSParagraphStyle {
assert(!paragraphStyle.textLists.isEmpty)
} else {
assertionFailure("Paragraph has lost its text lists")
}
return paragraph
}
Hello!
I'm trying to set a UiRefreshControl.tintColor:
.onAppear {
UIRefreshControl.appearance().tintColor = UIColor.systemBlue
}
But instead of
I get
The color in the second picture is a high contrast version of the first one. I can't understand why it works this way.
I also tried the following.
UIRefreshControl.appearance().tintColor = UIColor(red: 0, green: 0.478, blue: 1, alpha: 1) // doesn't work
UIRefreshControl.appearance().tintColor = UIColor(named: "RefreshControlColor") // doesn't work, here set "High contrast" on and indicated Universal.systemBlueColor
Perhaps I missed something?
I'm sending local push notifications and want to show specific content based on the id of any notification the user opens. I'm able to do this with no issues when the app is already running in the background using the code below.
final class AppDelegate: NSObject, UIApplicationDelegate, UNUserNotificationCenterDelegate {
let container = AppContainer()
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {
let center = UNUserNotificationCenter.current()
center.delegate = self
return true
}
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: () -> Void) {
container.notifications.handleResponse(response)
completionHandler()
}
}
However, the delegate never fires if the app was terminated before the user taps the notification. I'm looking for a way to fix this without switching my app lifecycle to UIKit.
This is a SwiftUI lifecycle app using UIApplicationDelegateAdaptor.
@main
struct MyApp: App {
@UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
var body: some Scene {
WindowGroup {
ContentView()
}
}
}
I’m aware notification responses may be delivered via launchOptions on cold start, but I’m unsure how to bridge that cleanly into a SwiftUI lifecycle app without reverting to UIKit.
A bottom accessory view is set on the UITabBarController. When changing the window size either by dragging the resizing grip or when going to portrait mode, the accessory view shrinks down to the smaller width. When resizing the window to make it larger, the accessory view doesn’t resize to the full available width.
During a workshop setup by Apple, folks from Apple told me that the view set as the content view of the UITabAccessory should not have its frame changed, either by using Auto Layout or by setting the frame. It seems logical since the view in the bottom accessory is supposed to resize accordingly to several factors, like when going inline inside the tab bar.
Am I missing something? Maybe there is additional setup required not mentioned in the dedicated video.
Feedback is FB19017330. It contains a sample project and videos demonstrating the issue. Reproduced on Xcode 26 beta 6 (17A5305f)
I copy and paste the sample code that setups the bottom accessory for good measure.
final class MiniPlayer: UIView {
let label = UILabel()
override init(frame: CGRect) {
super.init(frame: frame)
label.text = "Mini Player"
label.numberOfLines = 0
label.textAlignment = .center
addSubview(label)
label.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
label.centerXAnchor.constraint(equalTo: centerXAnchor),
label.centerYAnchor.constraint(equalTo: centerYAnchor)
])
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
// MARK: - View Controller
class ViewController: UIViewController {
let rootTabBarController = UITabBarController()
let miniPlayer = MiniPlayer()
override func viewDidLoad() {
super.viewDidLoad()
let items: [UITab] = [
UITab(title: "Tab 1", image: UIImage(systemName: "archivebox.fill"), identifier: "tab-1") { _ in
UIViewController()
},
UITab(title: "Tab 2", image: UIImage(systemName: "books.vertical.fill"), identifier: "tab-2") { _ in
UIViewController()
},
UISearchTab { _ in
UIViewController()
}
]
rootTabBarController.tabs = items
rootTabBarController.view.backgroundColor = .secondarySystemBackground
view.addSubview(rootTabBarController.view)
rootTabBarController.view.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
rootTabBarController.view.leadingAnchor.constraint(equalTo: view.leadingAnchor),
rootTabBarController.view.topAnchor.constraint(equalTo: view.topAnchor),
rootTabBarController.view.trailingAnchor.constraint(equalTo: view.trailingAnchor),
rootTabBarController.view.bottomAnchor.constraint(equalTo: view.bottomAnchor)
])
rootTabBarController.bottomAccessory = UITabAccessory(contentView: miniPlayer)
}
}
In iOS 18 betas, the App Store search bar has been moved to the bottom of the screen. This breaks years of usability and is inconsistent with Apple’s own apps—Calendar, Reminders, Maps, Safari, Files, Wallet, and Shortcuts—all of which keep search at the top.
I (and many others) hold the phone in one hand and tap with the other. Top placement is faster, more natural, and aligns with established Apple design. The “thumb reach” argument does not fit real-world usage for a large portion of users.
What I want is consistency across all Apple apps: put the search bar at the top everywhere.
Apple already made this mistake with Safari’s bottom address bar in iOS 15 and had to add a toggle after backlash. Please don’t repeat history.
Feedback ID: FB19598638
If you agree, please follow your own feedback and reference this thread. The more reports Apple sees, the more likely this gets fixed.
Hello. For the last few months I have been facing a situation for which I do not understand either the reason or the solution. Here is an example for the last few weeks:
In App Store Connect it shows 214 crashes for the last week
In Xcode it shows 56 crashes for the last 2 weeks without stack traces (NO_CRASH_STACK)
In Firebase Crashlytics there is not a single crash.
When I click "Show in Finder" it opens a folder with .xccrashpoint files. As far as I understood from the instructions on posting crash reports - this is not what is needed.
Interesting point: it looks like the errors occur on iOS 15-16 devices.
I have several questions:
Why is the number of crashes in Xcode different from the number in App Store Connect? Where are the other crashes?
How can I understand what the problem is if there are no stack traces in Xcode?
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
Is the possibility of programmatically recovering the enrolled email address associated with an iPad. We are currently working on a project that requires us to retrieve this information for our enrolled devices.
Could you please provide guidance or documentation on how we can achieve this programmatically? Specifically, we are interested in any APIs or frameworks that Apple provides for this purpose, as well as any necessary permissions or configurations that need to be in place.
We’re developing an iPad application that visualizes 2D and 3D building floor plans, including a mesh network of nodes that control lighting and climate. The node count ranges from 1,000 to 15,000.
We’re using SceneKit to dynamically render the floor plan and node mesh on an iPad 10th generation running iPadOS 18.3. While the core visualization works, we are experiencing significant performance degradation as the node count increases.
Specifically:
At 750–1,000 nodes, UI responsiveness noticeably declines.
At 2,000 nodes, navigating the floor plan becomes nearly unusable.
We attempted to optimize performance with a Geometric Pool algorithm, but the impact was minimal. Strangely, the same iPad handles 30,000+ 3D objects effortlessly when using Unity or Unreal Engine, raising the question of whether SceneKit may not be optimized for this scale.
Our questions:
Is SceneKit suitable for visualizing such large node counts, or are we hitting an inherent limitation of the framework?
Are there best practices or optimization techniques for SceneKit that we might be missing?
Should we consider a hybrid approach or fully transition to a different 3D engine for this use case?
We’ve attached a code sample below demonstrating the issue. Any insights, suggestions, or experiences would be greatly appreciated!
ContentView.swift
I am experiencing memory leaks in my iOS app that seem to be related to an issue between UIInputView and _UIInputViewContent. After using the memory graph, I'm seeing that instances of these objects aren't being deallocated properly.
The UIInputViewController whichs holds the inputView is being deallocated properly along with its subviews.I have tried to remove all of UIInputViewController's subviews and their functions but the uiInputView is not being deallocated.
The current setup of my app is a collectionView with multiple cell,each possessing a textfield with holds a UIInputViewController.When i scroll up or down,the views are being reused as expected and the number of UIInputViewController stays consistent with the number of textfields.However the number of inputView keeps increasing referencing solely _UIInputViewContent.
class KeyboardViewController: UIInputViewController {
// Callbacks
var key1: ((String) -> Void)?
var key2: (() -> Void)?
var key3: (() -> Void)?
var key4: (() -> Void)?
private lazy var buttonTitles = [
["1", "2", "3"],
["4", "5", "6"],
["7", "8", "9"]
]
override func viewDidLoad() {
super.viewDidLoad()
setupKeyboard()
}
lazy var mainStackView: UIStackView = {
let mainStackView = UIStackView()
mainStackView.axis = .vertical
mainStackView.distribution = .fillEqually
mainStackView.spacing = 16
mainStackView.translatesAutoresizingMaskIntoConstraints = false
return mainStackView
}()
private func setupKeyboard() {
let keyboardView = UIView(frame:CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 279.0))
keyboardView.addSubview(mainStackView)
NSLayoutConstraint.activate([
mainStackView.topAnchor.constraint(equalTo: keyboardView.topAnchor, constant: 16),
mainStackView.leadingAnchor.constraint(equalTo: keyboardView.leadingAnchor, constant: 0),
mainStackView.trailingAnchor.constraint(equalTo: keyboardView.trailingAnchor, constant: -24),
mainStackView.bottomAnchor.constraint(equalTo: keyboardView.bottomAnchor, constant: -35)
])
// Create rows
for (_, _) in buttonTitles.enumerated() {
let rowStackView = UIStackView()
rowStackView.axis = .horizontal
rowStackView.distribution = .fillEqually
rowStackView.spacing = 1
// Create buttons for each row
for title in rowTitles {
let button = createButton(title: title)
rowStackView.addArrangedSubview(button)
}
mainStackView.addArrangedSubview(rowStackView)
}
self.view = keyboardView
}
private func createButton(title: String) -> UIButton {
switch title {
///returns a uibutton based on title
}
}
// MARK: - Button Actions
@objc private func numberTapped(_ sender: UIButton) {
if let number = sender.title(for: .normal) {
key1?(number)
}
}
@objc private func key2Called() {
key2?()
}
@objc private func key3Called() {
key3?()
}
@objc private func key4Called() {
key4?()
}
deinit {
// Clear any strong references
key1 = nil
key2 = nil
key3 = nil
key4 = nil
for subview in mainStackView.arrangedSubviews {
if let stackView = subview as? UIStackView {
for button in stackView.arrangedSubviews {
(button as? UIButton)?.removeTarget(self, action: nil, for: .allEvents)
}
}
}
mainStackView.removeFromSuperview()
}
}
Environment
iOS 16.3
Xcode 18.3.1
Any insights would be greatly appreciated as this is causing noticeable memory growth in my app over time.
Hi all,
Recently, I received feedback from users that the cell of UITableView will be enlarged when clicked on the iOS26 system. After positioning, it was found that the iOS26 system has reset the frame of the contentView so that its width is always the screen width. The following Demo can reproduce this problem. Does anyone have this problem? Is there a solution?
Thanks
Run and click on the cell to see the problem
http://www.yangshuang.net/TestProject.zip
Hello everyone,
I’m currently working with the Message Filtering Extension and would really appreciate some clarification around its performance and operational constraints. While the extension is extremely powerful and useful, I’ve found that some important details are either unclear or not well covered in the available documentation.
There are two main areas I’m trying to understand better:
Machine learning model constraints within the extension
In our case, we already have an existing ML model that classifies messages (and are not dependant on Apple's built-in models). We’re evaluating whether and how it can be used inside the extension.
Specifically, I’m trying to understand:
Are there documented limits on the size of an ML model (e.g., maximum bundle size or model file size in MB)?
What are the memory constraints for a model once loaded into memory by the extension?
Under what conditions would the system terminate or “kick out” the extension due to memory or performance pressure?
Message processing timeouts and execution constraints
What is the timeout for processing a single received message?
At what point will the OS stop waiting for the extension’s response and allow the message by default (for example, if the extension does not respond in time)?
Any guidance, official references, or practical experience from Apple engineers or other developers would be greatly appreciated.
Thanks in advance for your help,
Environment
macOS 15.7.3
Xcode 26.1.1 / 26.2
iOS 18.5 / 26.2
iPhone 16 Pro Simulator and physical device
Problem Description
When tapping an unselected UISegmentedControl, the selected segment does not match the tapped position. Specifically, tapping the rightmost segment (index: 3) results in the leftmost segment (index: 0) being selected instead.
Conditions for Reproduction
This issue occurs when all of the following conditions are met:
Built with Xcode 26.x
UIDesignRequiresCompatibility is set to YES in Info.plist
UISegmentedControl is positioned using Auto Layout with leading alignment
Segments are added dynamically using insertSegment(withTitle:at:animated:)
Note: The issue does not occur when segments are defined statically in Storyboard.
Steps to Reproduce
Create a subclass of UISegmentedControl that dynamically sets segments:
class CustomSegmentedControl: UISegmentedControl {
func setSegments(titles: [String]) {
removeAllSegments()
titles.forEach { title in
insertSegment(withTitle: title, at: numberOfSegments, animated: false)
}
}
}
In the ViewController, configure the control:
override func viewDidLoad() {
super.viewDidLoad()
segmentedControl.setSegments(titles: ["Item A", "Item B", "Item C", "Item D"])
segmentedControl.selectedSegmentIndex = UISegmentedControl.noSegment
}
Set UIDesignRequiresCompatibility to YES in Info.plist:
<key>UIDesignRequiresCompatibility</key>
<true/>
Run the app and tap the rightmost segment ("Item D")
Expected vs Actual Behavior
Expected
Actual
Tap rightmost segment
"Item D" (index: 3) is selected
"Item A" (index: 0) is selected
What I Tried (Did Not Work)
Calling layoutIfNeeded() after adding segments:
segmentedControl.setSegments(titles: ["Item A", "Item B", "Item C", "Item D"])
segmentedControl.layoutIfNeeded() // No effect
Workarounds
Set UIDesignRequiresCompatibility to NO (enables Liquid Glass design)
Define segments statically in Storyboard instead of dynamically
Sample Project
Minimal reproduction project is available here:
https://github.com/CH3COOH/Samples/tree/master/SampleSelectSegmentedControl
Feedback Assistant
This issue has been reported via Feedback Assistant: FB21712773
Has anyone else encountered this issue or found alternative workarounds?
Hello Apple forum !
I spotted a weird behaviour with LazyVStack in a ScrollView. I understand that it loads its views only once upon appearance unlinke VStack that loads everything in one shot.
What I noticed also, it seems to reload its views sometimes when scrolling back up to earlier loaded views. The thing is, it isn't always the case.
struct LazyVStackTest: View {
var body: some View {
ScrollView {
LazyVStack {
ForEach(0..<1000, id: \.self) { _ in
// if true {
MyText()
// }
}
}
}
}
struct MyText: View {
var body: some View {
let _ = Self._printChanges()
HStack {
Text("hello")
}
}
}
}
If we consider the code above on XCode 26 beta 7 on an iOS 26 or iOS 18.2 simulator.
Scroll to the bottom : you'll see one "LazyVStackTest.MyText: @self changed" for each row.
Then scroll back up to the top, we'll see again the same message printed multiple times.
--> So I gather from this that LazyVStack not only loads lazily but also removes old rows from memory & recreates them upon reappearance.
What I don't get however is that if you uncomment the "if true" statement, you won't see the reloading happening. And I have absolutely no clue as to why 😅
If someone could help shed some light on this weird behaviour, it would be greatly appreciated ^^
PS : the issue is also present with XCode 16.2 but at a deeper lever (ex: if we embed another custom View "MyText2" inside "MyText", the reloading is in "MyText2" & not "MyText")
I recently update version 26 Beta 2 , 3 can't working screenshot & Dont have split screen iphones
Topic:
Developer Tools & Services
SubTopic:
Apple Developer Program
Tags:
Developer Tools
iOS
iPhone
Beta
Delete me
After doing a software update I can only view iMessages older than 12hrs (from a single contact) if the other person replies to and older message. Every time I leave the Massages app and go back in the issue occurs again.
It’s very annoying but on my iPhone 12 Pro I keep getting the accessibility app with the microphone on and it keeps opening the app by itself and it’s a blank screen and every time I close it it just reopens. I don’t know why it keeps doing this, but it drives me crazy. Does anyone know what else to do? I also have the beta iOS 26 but it’s been doing this even with the past update.
Xcode 16.2 archive fails to compile XIB
Xcode Archive command fails most of the time while compiling an XIB which was created in older Xcode.
XIB was updated in Xcode 16.2 version also which did not fix this issue.
Archive from Xcode app works but Xcode build command fails and no reason shown by the command.
** ARCHIVE FAILED **
The following build commands failed:
CompileXIB /Users…/Resources/Nibs/<XIB_NAME>.xib