Hello,
I am trying to match the font and the position of the date and time displayed.
This is what it looks like:
.font: NSFont.systemFont(ofSize: NSFont.systemFontSize, weight: .regular),
.foregroundColor: NSColor.labelColor,
.baselineOffset: 0.5
It looks great on built-in display, but on external 4K it is incorrect.
The baselineOffest is unnecessary, and the font looks skinny in comparison.
Can anyone comment on such issue?
AppKit
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Hi,
In mac os swift ui application when i set window.isReleasedWhenClosed and when i close the window the app is getting crashed with exc_bad_access. but when i leave it to default value the app is not crashing. for some windows setting window.isReleasedWhenClosed to true is woking properly when closing the windows. But for some windows it is crashing. If i dont set it to true the window is not removed from NSApplication.shared.windows sometimes. I am confused about setting isReleasedWhenClosed to true
Could someone calrify on this please.
thank in advance.
Without resorting to NSViewRepresentable, is there a view or view modifier in SwiftUI that can create an NSComboButton on macOS?
NSComboButton was introduced in macOS 13 and is (relatively) new to AppKit:
Apple Developer - NSComboButton
I only require support on macOS for this control.
Note that this is not to be confused with NSComboBox, which is a completely different control.
I'm currently working on a project to integrate some SwiftUI components into an existing AppKit application. The application makes extensive use of NSViewControllers. I can easily bridge between AppKit and SwiftUI using a view model that conforms to ObservableObject and is shared between the NSViewController and the SwiftUI View. But it's kind of tedious creating a view model for every view.
Is it "safe" and "acceptable" for the NSViewController to "hold on" to the SwiftUI View that it creates and then access its @State or @StateObject properties?
The lifecycle of DetailsView, a SwiftUI View, isn't clear to me when viewed through the lens of an NSViewController. Consider the following:
import AppKit
import SwiftUI
struct DetailsView: View {
@State var details: String = ""
var body: some View {
Text(details)
}
}
final class ViewController: NSViewController {
private let detailsView: DetailsView
init() {
self.detailsView = DetailsView()
super.init(nibName: nil, bundle: nil)
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func viewDidLoad() {
view.addSubview(NSHostingView(rootView: detailsView))
}
func updateDetails(_ details: String) {
// Is this 'safe' and 'acceptable'?
self.detailsView.details = details
}
}
Is the view controller guaranteed to always be updating the correct @State property or is there a chance that the view controller's reference to it somehow becomes stale because of a SwiftUI update?
For my macOS app, I'm trying to change the mouse cursor to a pointing hand while hovering over a specific view. However, when the view is scaled with an animation triggered by hovering (using .scaleEffect() and .animation()), the cursor doesn't change as expected. Is there any workaround to fix this?
This is a sample code:
struct ContentView: View {
@State private var hovering = false
var body: some View {
VStack {
Text("Hover me")
.padding()
.background(hovering ? Color.blue : Color.gray)
.scaleEffect(hovering ? 1.2 : 1.0)
.animation(.linear(duration: 0.2), value: hovering)
.onHover { hovering in
self.hovering = hovering
if hovering {
NSCursor.pointingHand.push()
} else {
NSCursor.pop()
}
}
}
.frame(width: 200, height: 200)
}
}
This is how it works:
As you can see, when the pointer enters the view, the cursor changes momentarily before reverting back to the arrow icon.
I also tried using NSTrackingArea with an NSView placed over the view, but it did not solve the issue. It might be that the combination of .scaleEffect() and .animation() is causing a forced cursor reset (possibly related to the use of NSWindow.disableCursorRects() or something similar). However, I'm not entirely sure.
Any insights or suggestions would be greatly appreciated. Thanks!
Take a look at this simple code:
import Cocoa
import SwiftUI
struct DemoView: View {
var body: some View {
Text("Click me!")
.onTapGesture {
print("Clicked")
}
}
}
class FlippedView: NSView {
override var isFlipped: Bool {
return true
}
}
class ViewController: NSViewController {
override func viewDidLoad() {
super.viewDidLoad()
let stackView = NSStackView()
stackView.orientation = .vertical
stackView.alignment = .leading
stackView.spacing = 0
stackView.translatesAutoresizingMaskIntoConstraints = false
let hostView = NSHostingView(rootView: DemoView())
stackView.addArrangedSubview(hostView)
let scrollView = NSScrollView()
scrollView.translatesAutoresizingMaskIntoConstraints = false
let flippedView = FlippedView()
flippedView.addSubview(stackView)
scrollView.documentView = flippedView
view.addSubview(scrollView)
NSLayoutConstraint.activate([
scrollView.topAnchor.constraint(equalTo: view.topAnchor),
scrollView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
scrollView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
scrollView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
])
}
}
I need my scroll view to start at the very top, so i put it inside a flipped document view.
But now .onTapGesture does not fire.
Apparently when setting a window to hide its title, the toolbar's displayMode is not restored when relaunching the app. For example, by default my app sets to show toolbar icons only, but when right-clicking it, selecting "Icon and Text" and relaunching the app, it's again "Icon Only".
Is there a workaround? I've filed FB17144212.
class ViewController: NSViewController, NSToolbarDelegate {
override func viewDidAppear() {
let toolbar = NSToolbar(identifier: "toolbar")
toolbar.delegate = self
toolbar.autosavesConfiguration = true
toolbar.displayMode = .iconOnly
view.window?.titleVisibility = .hidden
view.window?.toolbar = toolbar
view.window?.toolbarStyle = .unified
}
func toolbarAllowedItemIdentifiers(_ toolbar: NSToolbar) -> [NSToolbarItem.Identifier] {
return [.init(rawValue: "item")]
}
func toolbarDefaultItemIdentifiers(_ toolbar: NSToolbar) -> [NSToolbarItem.Identifier] {
return [.init(rawValue: "item")]
}
func toolbar(_ toolbar: NSToolbar, itemForItemIdentifier itemIdentifier: NSToolbarItem.Identifier, willBeInsertedIntoToolbar flag: Bool) -> NSToolbarItem? {
let item = NSToolbarItem(itemIdentifier: itemIdentifier)
item.image = NSImage(named: NSImage.addTemplateName)!
item.label = "item"
return item
}
}
I have an app with two file types with the following extensions:
gop (an exported type),
sgf (an imported type).
The Save command fails after the following sequence of events:
I open a gop file, say the file "A.gop".
I save this file as an sgf file, say "A.sgf".
This Save As works perfectly and the document name in the document’s title bar has changed to "A.sgf".
I change something in the document and then try to Save this change.
This should just resave the document to "A.sgf", but "A.sgf" remains untouched. Instead I get a system alert with the message
The document “A.sgf” could not be saved. A file with the name “A.gop” already exists. To save the file, either provide a different name, or move aside or delete the existing file, and try again.
In the Xcode console I get the following diagnostic:
NSFileSandboxingRequestRelatedItemExtension: an error was received from pboxd instead of a token. Domain: NSPOSIXErrorDomain, code: 2 [NSFileCoordinator itemAtURL:willMoveToURL:] could not get a sandbox extension. oldURL: file:///Users/francois/Desktop/A.sgf, newURL: file:///Users/francois/Desktop/A.gop
The problem seems to relate to the sandbox. But I am at a loss to find a solution. (After closing the alert, I check that A.sgf did not register the change.)
If I open an sgf file, say "B.sgf", save it as "B.gop", make a change in the document and then try to save this change (into "B.gop"), I hit the same problem, with "gop" and "sgf" interchanged.
If, instead of saving "A.gop" as "A.sgf", I save it as "B.sgf", make a change in the document and then try to save this change into "B.sgf", I get the following system alert:
The document “B.sgf” could not be saved. You don’t have permission. To view or change permissions, select the item in the Finder and choose File > Get Info.
And in the Xcode console I get the following diagnostic:
NSFileSandboxingRequestRelatedItemExtension: an error was received from pboxd instead of a token. Domain: NSPOSIXErrorDomain, code: 2 [NSFileCoordinator itemAtURL:willMoveToURL:] could not get a sandbox extension. oldURL: file:///Users/francois/Desktop/B.sgf, newURL: file:///Users/francois/Desktop/B.gop
Again the sandbox ! (After closing the alert, I check that B.sgf did not register the change.)
It’s clear my code is missing something, but what?
I'm trying to update my app to use TextKit 2. The one thing that I'm still not sure about is how I can get the selection frame. My app uses it to auto-scroll the text to keep the cursor at the same height when the text wraps onto a new line or a newline is manually inserted. Currently I'm using NSLayoutManager.layoutManager!.boundingRect(forGlyphRange:in:).
The code below almost works. When editing the text or changing the selection, the current selection frame is printed out. My expectation is that the selection frame after a text or selection change should be equal to the selection frame before the next text change. I've noticed that this is not always true when the text has a NSParagraphStyle with spacing > 0. As long as I type at the end of the text, everything's fine, but if I insert some lines, then move the selection somewhere into the middle of the text and insert another newline, the frame printed after manually moving the selection is different than the frame before the newline is inserted. It seems that the offset between the two frames is exactly the same as the paragraph style's spacing. Instead when moving the selection with the arrow key the printed frames are correct.
I've filed FB17104954.
class ViewController: NSViewController, NSTextViewDelegate {
private var textView: NSTextView!
override func loadView() {
let scrollView = NSScrollView(frame: CGRect(x: 0, y: 0, width: 400, height: 400))
textView = NSTextView(frame: scrollView.frame)
textView.autoresizingMask = [.width, .height]
textView.delegate = self
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.lineSpacing = 40
textView.typingAttributes = [.foregroundColor: NSColor.labelColor, .paragraphStyle: paragraphStyle]
scrollView.documentView = textView
scrollView.hasVerticalScroller = true
view = scrollView
}
func textView(_ textView: NSTextView, shouldChangeTextIn affectedCharRange: NSRange, replacementString: String?) -> Bool {
print("before", selectionFrame.maxY, selectionFrame)
return true
}
func textDidChange(_ notification: Notification) {
print("after ", selectionFrame.maxY, selectionFrame)
}
func textViewDidChangeSelection(_ notification: Notification) {
print("select", selectionFrame.maxY, selectionFrame)
}
var selectionFrame: CGRect {
guard let selection = textView.textLayoutManager!.textSelections.first?.textRanges.first else {
return .null
}
var frame = CGRect.null
textView.textLayoutManager!.ensureLayout(for: selection)
textView.textLayoutManager!.enumerateTextSegments(in: selection, type: .selection, options: [.rangeNotRequired]) { _, rect, _, _ in
frame = rect
return false
}
return frame
}
}
The following code only ever causes shouldDrawInsertionPoint to be printed (no drawInsertionPoint), but even if that method returns false, the blinking insertion point is still drawn. On the other hand, with TextKit 1 it works as expected.
Is there a way to hide the default insertion point in TextKit 2? My app draws its own.
I've filed FB13684251.
class TextView: NSTextView {
override var shouldDrawInsertionPoint: Bool {
print("shouldDrawInsertionPoint")
return false
}
override func drawInsertionPoint(in rect: NSRect, color: NSColor, turnedOn flag: Bool) {
print("drawInsertionPoint", flag)
}
}
``
Hello,
is there a way to implement Continuity Markup in our own apps?
(This is what I'm talking about: https://support.apple.com/en-us/102269 , scroll down to "Use Continuity Markup").
Also, why does a QuickLook panel (QLPreviewPanel.shared()) not display the markup options when triggered from my app for png image files in my app's Group Container? Do I need to implement certain NSServicesMenuRequestor methods for that?
Sadly, I could not find any docs on that.
Thank you,
– Matthias
To get menubar size, we can call.
let menuBarHeight = NSStatusBar.system.thickness
That is returning 24 and it is the same as my external screen. I did command + shift + 5 and use the screen capture tool to rougly measure the size of menubar. It is roughly 24px.
However, for my macbook pro 14 inches m2 pro. The menubar seem thicker because of the webcam. Is there a way to find out the size in Swift?
Security scoped bookmarks that were created before updating to macOS 14.7.5 cannot be resolved anymore after updating to macOS 14.7.5.
Reproduction:
Sandboxed app on macOS version 14.7.4
Create and store a security scoped bookmark to a user selected folder:
let url: URL = <user selected url from NSOpenPanel>
let data = try url.bookmarkData(options: [.withSecurityScope], includingResourceValuesForKeys: nil, relativeTo: nil)
<persistently store data>
Update to macOS 14.7.5
Resolve the previously stored bookmark:
let data: Data = <restore data from persistent storage>
var stale: Bool = true
let url = try URL(resolvingBookmarkData: data, options: [.withSecurityScope], relativeTo: nil, bookmarkDataIsStale: &stale)
Expected:
The bookmark is resolved correctly and the resulting url can be used to access the folder/file in the sandboxed app after starting access.
Observed:
URL(resolvingBookmarkData:) throws an error:
Error Domain=NSCocoaErrorDomain Code=259 "The file couldn’t be opened because it isn’t in the correct format."
New security scoped bookmarks created on macOS 14.5.7 can be resolved without issue.
The same appears to happen with macOS 13.7.5.
Entitlements:
com.apple.security.app-sandbox
com.apple.security.files.bookmarks.app-scope
com.apple.security.files.user-selected.read-write
This is very disruptive, as it appears that Sandboxed apps cannot access any previously stored bookmarks anymore.
Particularly after the recent ScopedBookmarkAgent issues in 14.7.1 and 15.0, which were resolved in 14.7.3/15.1 respectively: https://developer.apple.com/forums/thread/764435
My app supports different plain text file formats, including the standard .txt and Markdown. When creating a new document, my app already asks which format it should have, so when saving it, I would expect that the save panel already selects that format in the popup button, but currently it always selects "Plain Text". For example, I would expect for a Markdown document that it selects "Markdown" instead of "Plain Text".
Is there a way to force it to select the most specific format matching the document format?
Environment:
• macOS: Sequoia 15.3.2
• Xcode: 16.2
• Framework: AppKit (Objective-C)
Issue:
When programmatically setting the first responder to an NSSecureTextField shortly after its containing window loads or becomes key, a visual anomaly intermittently occurs (roughly 50% of the time).
A semi-transparent UI element—likely related to the system’s Keychain password suggestion/autofill feature—appears detached from the text field. Instead of anchoring to the field, it renders elsewhere on the screen.
I found similar issues discussed here:
https://stackoverflow.com/questions/74220070/strange-transparent-view-appears-beneath-textfield-in-mac-catalyst-app
https://stackoverflow.com/questions/73277582/swiftui-view-with-textfield-and-securefield-buggy-on-macos-shows-strange-view/73615876#73615876
https://developer.apple.com/forums/thread/708075
My assumption has always been that [NSApp runModalForWindow:] runs a modal window in NSModalPanelRunLoopMode.
However, while -[NSApplication _doModalLoop:peek:] seems to use NSModalPanelRunLoopMode when pulling out the next event to process via nextEventMatchingMask:untilDate:inMode:dequeue:, the current runloop doesn't seem to be running in that mode, so during -[NSApplication(NSEventRouting) sendEvent:] of the modal-specific event, NSRunLoop.currentRunLoop.currentMode returns kCFRunLoopDefaultMode.
From what I can tell, this means that any event processing code that e.g. uses [NSTimer addTimer:forMode:] based on the current mode will register a timer that will not fire until the modal session ends.
Is this a bug? Or if not, is the correct way to run a modal session something like this?
[NSRunLoop.currentRunLoop performInModes:@[NSModalPanelRunLoopMode] block:^{
[NSApp runModalForWindow:window];
}];
[NSRunLoop.currentRunLoop limitDateForMode:NSModalPanelRunLoopMode];
Alternatively, if the mode of the runloop should stay the same, I've seen suggestions to run modal sessions like this:
NSModalSession session = [NSApp beginModalSessionForWindow:theWindow];
for (;;) {
if ([NSApp runModalSession:session] != NSModalResponseContinue)
break;
[NSRunLoop.currentRunLoop limitDateForMode:NSModalPanelRunLoopMode];
}
[NSApp endModalSession:session];
Which would work around the fact that the timer/callbacks were scheduled in the "wrong" mode. But running NSModalPanelRunLoopMode during a modal session seems a bit scary. Won't that potentially break the modality?
Pasting either plain or styled text into any TextEditor results in a memory leak.
import SwiftUI
struct EditorView: View {
@State private var inputText: String = ""
var body: some View {
VStack{
TextEditor(text: $inputText)
.frame(minHeight: 150)
}
}
}
Xcode downloaded a crash report for my app which I don't quite understand. It seems the following line caused the crash:
myEntity.image = newImage
where myEntity is of type MyEntity:
class MyEntity: NSObject, Identifiable {
@objc dynamic var image: NSImage!
...
}
The code is called on the main thread. According to the crash report, thread 0 makes that assignment, and at the same time thread 16 is calling [NSImageView asynchronousPreparation:prepareResultUsingParameters:].
What could cause such a crash? Could I be doing something wrong or is this a bug in macOS?
crash.crash
In macOS 15.4 (24E5238a) and Xcode 16.2, the NSStatus images appear to be missing.
To reproduce, add an NSImageView to a Nib or StoryBoard and set the default image to any of the NSStatus images: NSStatusAvailable, NSStatusPartiallyAvailable, etc. Instead of the expected Green, Yellow dots, no image is displayed. The same occurs when setting images programatically.
Is the plan to remove these images, or is this just temporary?
It seems that NSTextView has an issue with deleting text and setting any attribute at the same time, when it also has a textContainerInset.
With the code below, after 1 second, the empty line in the text view is automatically deleted and the first line is colored red. The top part of the last line remains visible at its old position. Selecting the whole text and then deselecting it again makes the issue disappear.
Is there a workaround?
I've created FB16897003.
class ViewController: NSViewController {
@IBOutlet var textView: NSTextView!
override func viewDidAppear() {
textView.textContainerInset = CGSize(width: 0, height: 8)
let _ = textView.layoutManager
textView.textStorage!.setAttributedString(NSAttributedString(string: "1\n\n2\n3\n4"))
textView.textStorage!.addAttribute(.foregroundColor, value: NSColor.labelColor, range: NSRange(location: 0, length: textView.textStorage!.length))
DispatchQueue.main.asyncAfter(deadline: .now() + 1) { [self] in
textView.selectedRange = NSRange(location: 3, length: 0)
textView.deleteBackward(nil)
textView.textStorage!.beginEditing()
textView.textStorage!.addAttribute(.foregroundColor, value: NSColor.red, range: NSRange(location: 0, length: 2))
textView.textStorage!.endEditing()
}
}
}