I'm reworking my app for SwiftUI 2.0 but have come across a problem when replicating what I could do with AppDelegate.
I'm using NSViewRepresentable to get access to NSWindow so I can remove the titlebar of the window (I know it's not in the guidelines but this will never be submitted). When removing .titled from styleMask, the app crashes.
struct WindowAccessor: NSViewRepresentable {
#Binding var window: NSWindow?
func makeNSView(context: Context) -> NSView {
let view = NSView()
DispatchQueue.main.async {
self.window = view.window
self.window?.isOpaque = false
self.window?.titlebarAppearsTransparent = true
self.window?.backgroundColor = NSColor.clear
self.window?.styleMask = [.fullSizeContentView]
self.window?.isMovableByWindowBackground = true
self.window?.backingType = .buffered
}
return view
}
func updateNSView(_ nsView: NSView, context: Context) {}
}
#main
struct MyApp_App: App {
#State private var window: NSWindow?
var body: some Scene {
WindowGroup {
ContentView().background(WindowAccessor(window: $window))
}
}
}
struct ContentView: View {
var body: some View {
Text("Hello, world!").padding().background(Color(NSColor.windowBackgroundColor))
}
}
When I run the app I get Thread 1: EXC_BAD_ACCESS (code=EXC_I386_GPFLT)
All I'm trying to achieve with my app is a Menu Bar application that looks exactly like Spotlight. No dock icon, no title bar, all preferences to be handled by a popover or another window.
EDIT:
Is this something to do with the canBecomeKey property?
Related
I have written an app to display timezones in a NSStatusBar popover. All good so far but when I add a second popover from a button inside the original popover view and include a TextField I start getting problems.
The TextField shows as having focus but it refuses input. If I toggle in and out of the second popover then I get a crash.
...as the first responder for window <_NSPopoverWindow: 0x7fb9c1807bb0>, but it is in a different window ((null))! This would eventually crash when the view is freed. The first responder will be set to nil.
I'm assuming these are related.
I have extracted just the NSStatus bar setup and the two popover views and it is fully repeatable in this toy instance. I use an EventMonitor to catch a click outside of the popover to close it. I don't think that is relevant but I have included it in the toy app for completeness
AppDelegate.swift
import Cocoa
import SwiftUI
#NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
var popover: NSPopover!
var statusBarItem: NSStatusItem!
var eventMonitor: EventMonitor?
var contentView = ContentView()
func applicationDidFinishLaunching(_ aNotification: Notification) {
// Create the popover
let popover = NSPopover()
popover.behavior = .transient
popover.contentViewController = NSHostingController(rootView: contentView)
self.popover = popover
// Create the status item
self.statusBarItem = NSStatusBar.system.statusItem(withLength: CGFloat(NSStatusItem.variableLength))
if let button = self.statusBarItem.button {
button.image = NSImage(named: "Icon")
button.action = #selector(togglePopover(_:))
}
eventMonitor = EventMonitor(mask: [.leftMouseDown, .rightMouseDown]) { [unowned self] event in
if self.popover.isShown {
closePopover(event)
}
}
eventMonitor?.start()
NSApp.activate(ignoringOtherApps: true)
}
#objc func togglePopover(_ sender: AnyObject?) {
if popover.isShown {
closePopover(sender)
} else {
showPopover(sender)
}
}
func showPopover(_ sender: AnyObject?) {
if let button = statusBarItem.button {
popover.show(relativeTo: button.bounds, of: button, preferredEdge: NSRectEdge.minY)
self.popover.contentViewController?.view.window?.becomeKey()
}
eventMonitor?.start()
}
func closePopover(_ sender: AnyObject?) {
popover.performClose(sender)
eventMonitor?.stop()
}
}
open class EventMonitor {
fileprivate var monitor: AnyObject?
fileprivate let mask: NSEvent.EventTypeMask
fileprivate let handler: (NSEvent?) -> ()
public init(mask: NSEvent.EventTypeMask, handler: #escaping (NSEvent?) -> ()) {
self.mask = mask
self.handler = handler
}
deinit {
stop()
}
open func start() {
monitor = NSEvent.addGlobalMonitorForEvents(matching: mask, handler: handler) as AnyObject?
}
open func stop() {
if monitor != nil {
NSEvent.removeMonitor(monitor!)
monitor = nil
}
}
}
ContentView.swift
import SwiftUI
struct ContentView: View {
#State private var showingPopover = false
#State var value: String = "Initial Value"
var body: some View {
VStack {
Button {
showingPopover = true
} label: {
Image(systemName: "globe")
.imageScale(.large)
.foregroundColor(.accentColor)
}
.popover(isPresented: $showingPopover) {
EditView(value: $value)
}
Text("Hello, world!")
}
.padding()
}
}
struct EditView: View {
#Binding var value: String
var body: some View {
VStack {
TextField("Location ", text: $value) // the location as a string
.multilineTextAlignment(.center)
.lineLimit(1)
.onSubmit {
print("value submit \(value)")
}
}
.padding()
.frame(width:200, height: 50)
}
}
I've searched for information and found references to similar problems with windowed applications and needing to click in the 'window' before clicking in the TextField but that doesn't seem to do anything in this context
I'm building on MacOS 12.6.2 with Target set for 12.0
I have created a macOS status bar application using SwiftUI and i finally have everything working the way i want it. The only problem is that when i use it on full screen the status bar hides and the popover menu gets chopped off. Any ideas?
MyApp.swift:
import SwiftUI
#main
struct MyApp: App {
#NSApplicationDelegateAdaptor(AppDelegate.self) var delegate;
var body: some Scene {
Settings {
ContentView()
}
}
}
class AppDelegate: NSObject,NSApplicationDelegate {
var statusItem: NSStatusItem!
var popOver: NSPopover!
func applicationDidFinishLaunching(_ notification: Notification){
let contentView = ContentView()
let popOver = NSPopover();
popOver.behavior = .transient
popOver.animates = true
popOver.contentViewController = NSHostingController(rootView: contentView)
popOver.setValue(true, forKeyPath: "shouldHideAnchor")
self.popOver = popOver
self.statusItem = NSStatusBar.system.statusItem(withLength: CGFloat(NSStatusItem.variableLength))
if let MenuButton = self.statusItem.button {
MenuButton.image = NSImage(systemSymbolName: "display.2", accessibilityDescription: nil)
MenuButton.action = #selector(MenuButtonToggle)
}
}
#objc func MenuButtonToggle(_ sender: AnyObject){
if let button = self.statusItem.button {
if self.popOver.isShown{
self.popOver.performClose(sender)
}else {
self.popOver.show(relativeTo: button.bounds, of: button, preferredEdge: NSRectEdge.minY)
self.popOver.contentViewController?.view.window?.makeKey()
}
}
}
}
In your code just add a "random" larger size than the popover itself.
I think this happens because the size of the popover is not calculated right away so there is a race condition in there, but this seems to work pretty well for me 👌
popOver.contentSize = NSSize(width: 600, height: 1)
I'm looking to not show a window for a SwiftUI application on macOS. The app uses SwiftUI's application lifecycle and only runs in the status bar. Showing a window on start up is unnecessary. I'm unsure however how to get around the WindowGroup. There's no such a thing as an EmptyScene and putting an EmptyView inside the WindowGroup of course creates an empty window.
#main
struct MyApp: App {
#NSApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
var body: some Scene {
WindowGroup {
ContentView()
}
}
}
I basically only need the app delegate. I'm guessing using the default AppKit lifecycle makes more sense, but if there is a way to use SwiftUI's lifecycle, I'd love to know.
In your AppDelegate, do the following in your applicationDidFinishLaunching:
func applicationDidFinishLaunching(_ notification: Notification) {
// Close main app window
if let window = NSApplication.shared.windows.first {
window.close()
}
// Code continues here...
}
For example:
class AppDelegate: NSObject, NSApplicationDelegate {
var popover = NSPopover.init()
var statusBar: StatusBarController?
func applicationDidFinishLaunching(_ notification: Notification) {
// Close main app window
if let window = NSApplication.shared.windows.first {
window.close()
}
// Create the SwiftUI view that provides the contents
let contentView = ContentView()
// Set the SwiftUI's ContentView to the Popover's ContentViewController
popover.contentSize = NSSize(width: 160, height: 160)
popover.contentViewController = NSHostingController(rootView: contentView)
// Create the Status Bar Item with the above Popover
statusBar = StatusBarController.init(popover)
}
}
You should be able to do something like this:
var body: some Scene {
WindowGroup {
ZStack {
EmptyView()
}
.hidden()
}
}
If you app has settings (who doesn't?), you can do like this:
#main
struct TheApp: App {
#NSApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
var body: some Scene {
Settings {
SettingsView()
}
}
}
The app uses SwiftUI's application lifecycle and only runs in the status bar.
Use a MenuBarExtra
scene to render a persistent control in the system menu bar with the native SwiftUI lifecycle. (Xcode 14.2, macOS Ventura)
#main
struct MyStatubarMenuApp: App {
var body: some Scene {
// -- no WindowGroup required --
// -- no AppDelegate needed --
MenuBarExtra("😎") {
Text("Hello Status Bar Menu!")
Divider()
Button(…)
MyCustomSubmenu()
}
}
}
Note: Add and set Application is agent = YES in Info.plist for the app icon to not show on the dock.
I am writing a small App for the Mac..
I need to disable to (Green Button) for full screen.
I am using SwiftUI App not AppKit App Delegate
Cant find how to disable the Full Screen Button for my app.
Any thoughts?
Because no one answered with a cleaner SwiftUI only version:
struct ContentView: View {
var body: some View {
HostingWindowFinder { window in
window?.standardWindowButton(.zoomButton)?.isHidden = true //this removes the green zoom button
}
Text("Hello world")
}
}
struct HostingWindowFinder: NSViewRepresentable {
var callback: (NSWindow?) -> ()
func makeNSView(context: Self.Context) -> NSView {
let view = NSView()
DispatchQueue.main.async { [weak view] in
self.callback(view?.window)
}
return view
}
func updateNSView(_ nsView: NSView, context: Context) {}
}
HostingWindowFinder concept taken from https://lostmoa.com/blog/ReadingTheCurrentWindowInANewSwiftUILifecycleApp/
I am trying to use the NSVisualEffectView in my project with SwiftUI. This is how I imported it:
struct VisualEffectView: NSViewRepresentable {
func makeNSView(context: Context) -> NSVisualEffectView {
let view = NSVisualEffectView()
view.blendingMode = .withinWindow
view.isEmphasized = true
view.material = .sidebar
return view
}
func updateNSView(_ nsView: NSVisualEffectView, context: Context) {
}
}
Then this is how I am using it
var body: some View {
ZStack {
Image("someImage")
SomeText()
.background(VisualEffectView())
}
}
Eventually, it showed up on the screen as a box grey box without translucent or blur. Anyone know what I am missing from the example above? Thank you for your help