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Issue with DeviceActivityMonitor - eventDidReachThreshold Callback Not Triggering Properly
Hello, I'm currently experiencing an issue with the DeviceActivityMonitor extension in my code, specifically with the eventDidReachThreshold callback. I'm hoping to get some insights into why this problem occurs and how to resolve it. Problem: Issue 1: The eventDidReachThreshold callback is not triggering as expected. It appears that the callback is not being invoked when the threshold is reached. Issue 2: After a few seconds, the eventDidReachThreshold callback starts to trigger multiple times. This unexpected behavior is causing problems in my code, as it results in incorrect actions being taken. iOS version: iOS16.7.2 and iOS17.1 Xcode version: 15.0.1 Swift version: 5.9 Here is my code to start the monitoring: func startMonitoring() { var startTime : DateComponents = DateComponents(hour: 0, minute: 0) let endTime : DateComponents = DateComponents(hour: 23, minute: 59) /// Creates the schedule for the activity, specifying the start and end times, and setting it to repeat. let schedule = DeviceActivitySchedule(intervalStart: startTime, intervalEnd: endTime, repeats: true, warningTime: nil) /// Defines the event that should trigger the encouragement. let event = DeviceActivityEvent(applications: socialActivitySelection.applicationTokens, categories: socialActivitySelection.categoryTokens, webDomains: socialActivitySelection.webDomainTokens, threshold: DateComponents(minute: 2)) let events: [DeviceActivityEvent.Name: DeviceActivityEvent] = [.socialScreenTimeEvent : event] do { activityCenter.stopMonitoring([.socialScreenTime]) /// Tries to start monitoring the activity using the specified schedule and events. try activityCenter.startMonitoring(.socialScreenTime, during: schedule, events: events) } catch { /// Prints an error message if the activity could not be started. print("Could not start monitoring: \(error)") } } If there are any known workarounds or potential solutions, please share them. Thank you for your help in resolving this problem.
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1.1k
Nov ’25
What is the appropriate accessibility trait for selectable UITableViewCell?
I’m trying to understand the best practice for assigning accessibilityTraits to a UITableViewCell that users can select from a list of options. In Apple’s first-party apps like Settings, I’ve noticed an inconsistent approach—some cells use the Button trait, while others simply announce the label along with the Selected trait when applicable, without any additional role like Button or Adjustable. So my question is: What is the most appropriate accessibility trait to use for a selectable table view cell that updates a selection (like a settings option)? Is using .button the right approach, or should we rely solely on .selected? Is there any user experience guideline from Apple that recommends one over the other? Would love to hear how others handle this for clarity and consistency in VoiceOver behavior.
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159
Apr ’25
accessibilityElements excludes the unlisted subviews – How to Fix?
I have a parent view containing 10 subviews. To control the VoiceOver navigation order, I set only a few elements in accessibilityElements. However, the remaining elements are not being focused or are completely inaccessible. Is this the expected behavior? If I only specify a subset of elements in accessibilityElements, does it exclude the rest? What’s the best way to ensure all elements remain accessible while customising the order?
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227
Apr ’25
accessibilityActivationPoint Not Working When Set Directly on UITableViewCell
I’m trying to set the accessibilityActivationPoint directly on a UITableViewCell so that VoiceOver activate on a specific button inside the cell. However, this approach doesn’t seem to work. Instead, when I override the accessibilityActivationPoint property inside the UITableViewCell subclass and return the desired point, it works as expected. Why doesn’t setting accessibilityActivationPoint directly on the cell work, but overriding it inside the cell does? Is there a recommended approach for handling this scenario? The following approach works, override var accessibilityActivationPoint: CGPoint { get { return convert(toggleSwitch.center, to: nil) } set{ super.accessibilityActivationPoint = newValue } } but setting accessibility point directly not works private func configureAccessibility() { isAccessibilityElement = true accessibilityLabel = titleLabel.text accessibilityTraits = .toggleButton accessibilityActivationPoint = self.convert(toggleSwitch.center, to: self) accessibilityValue = toggleSwitch.accessibilityValue }
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Apr ’25
Handling VoiceOver Focus When Screen Changes (Push, Present, and SplitViewController)
I have some doubts about how VoiceOver handles focus when the screen updates. When a new UIViewController is pushed onto a UINavigationController or presented modally, how does VoiceOver decide which element to focus on? Is there a way to control or customize this behavior? In a UISplitViewController, when an item is selected in the primary view controller, the focus should shift to the relevant content in the secondary view controller. How can we ensure that VoiceOver correctly moves focus to the right element in the secondary panel?
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163
Apr ’25
VoiceOver Not Scrolling to Focused TableView Cell
I have a view dynamically overlaid on a UITableView with proper padding (added when certain conditions are met). When VoiceOver focuses on a cell beneath this overlay, the focused element does not scroll into view. I’ve noticed similar behavior in Apple’s first-party Podcasts app. Please find the attached image for reference. How can I resolve this issue and ensure VoiceOver scrolls the focused cell into view?
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210
Apr ’25
Unable to Add Accessibility Trait to UISegmentedControl
I’m trying to add the .header accessibility trait to a UISegmentedControl so that VoiceOver recognizes it accordingly. However, setting the trait using the following code doesn’t seem to have any effect: segmentControl.accessibilityTraits = segmentControl.accessibilityTraits.union(.header) Even after applying this, VoiceOver doesn’t announce it as a header. Is there any workaround or recommended approach to achieve this?
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281
Mar ’25
How to Ensure Data Privacy with VoiceOver Reading Sensitive Information?
VoiceOver reads out all visible content on the screen, which is essential for visually challenged users. However, this raises a privacy concern—what if a user accidentally focuses on sensitive information, like a bank account password, and it gets read aloud? How can developers prevent VoiceOver from exposing confidential data while still maintaining accessibility? Are there best practices or recommended approaches to handle such scenarios effectively?
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449
Mar ’25
How to Enable Group Navigation Behavior for Custom Views in VoiceOver?
In VoiceOver, when using Group Navigation style, the cursor first focuses on the semantic group. To navigate inside the group, a two-finger swipe (left or right) can be used. This behavior works for default containers like the Navigation Bar, Tab Bar, and Tool Bar. How can I achieve the same behavior for a custom view? I tried setting accessibilityContainerType = .semanticGroup, but it only works for Mac Catalyst. Is there an equivalent approach for iOS?
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459
Mar ’25
Best Way to Navigate to the Top Element Using VoiceOver
I’m currently focused on an element at the bottom of the screen. What is the proper way to quickly navigate to the top element? By default, there’s a four-finger single tap to move to the first element, but should I use the Rotor action instead to focus on the element I need? For example, in the Contacts app while adding a new contact, if I enter a value in a field at the bottom, there’s no quick way to directly save the contact. I have to manually navigate all the way to the top to tap the Done button, which feels a bit inconvenient. Is there a better way to handle this using VoiceOver?
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470
Mar ’25
How to Receive Callbacks for UIAccessibilityAction Methods Like accessibilityPerformMagicTap()?
I’ve tried implementing the accessibilityPerformMagicTap() method in a specific UIViewController, its view, and even in AppDelegate, but I am not receiving any callbacks. I directly overrode this method in the mentioned areas, but it never gets triggered when performing a magic tap. How can I properly observe and handle the accessibilityPerformMagicTap() action?
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Mar ’25