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Environment variable not working in another user account
I have the following in my .zshrc: export MY_LIBRARY_DIR=~/bin In Xcode I can set header/lib search path using something like $(MY_LIBRARY_DIR)/abc. This works fine in my daily used user account. But today I found that this technique does not work in a test user account (for testing purpose only). I even reboot my machine but still can't get it working. Am I missing something very obvious??? BTW, I am using Xcode 14.2 and 14.3.1.
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716
Dec ’23
How detect cyclic symbolic links using NSFileManager?
My code is crashing Xcode (or even macOS kernel) during debugging - Xcode just vanishes from screen! // pseudo code public func hunt(in directory: URL) { let fileIterator = fileMan.enumerator(at: directory) // collect app packages into a list var packages = [URL]() for case let fileURL as URL in fileIterator { if fileURL.pathExtension == "app" { packages.append(fileURL) } } // FileWrappers var wrappers = [FileWrappers]() for packageURL in packages { //!!! The line below eventually crashes Xcode (or even macOS kernel once)! wrappers[packageURL] = try? FileWrapper(url: packageURL, options: .immediate) // NOTE: I need FileWrapper.matchesContents later in some code } } // unit test case func test() {} myObj.hunt(in: URL(fileURLWithPath: "/Applications")) } I suspect that the FileWrapper constructor is traversing directories and encounter cyclic symbolic links and eventually it crashes; since it's running at system runtime level, most probably it also crashes macOS kernel! So my question is that is there any way to detect cyclic symbolic links so that I can design my own logics similar to FileWrapper?
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546
Jan ’24
TableView.makeView question
Is it possible that I bypass tableView.makeView so that I can create a NSTableCellView on the fly (based on some logics)? func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? { if NSTableColumn.identifier.rawValue == "labelColumn" { let myCellView = NSTableCellView() myCellView.textField.strinValue = "label text" return myCellView } else { let complexView = loadFromNib() // of NSTableCellView // populate complexView return complexView } }
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453
Jan ’24
How change NSTableView's width using code?
I calculate cell view's width in func tableView(_ tableView: NSTableView, sizeToFitWidthOfColumn column: Int). I have a need to resize the tableview's width to just match total width of all cell views' (without scrollbars). But it seems changing tableview's width does not work: tableView.bounds.size = CGSize(width: w, height: tableView.bounds.height) I suspect that I should change its clipping view or enclosing scrollview, but don't have any idea on this. Any help?
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684
Mar ’24
Any way to keep app running while keep main window hidden?
I tried many ways but it seems I just cannot get it working. // AppDelegate func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool { true // false does not work either } // MainWC func windowShouldClose(_ sender: NSWindow) -> Bool { print(#function) if sender === NSApp.mainWindow { print("is main window") sender.setIsVisible(false) return false } return true } Once I hide the main window (using setIsVisible or orderOut) the app quits; even if I return false from applicationShouldTerminateAfterLastWindowClosed, NSApp.mainWindow will become nil.
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770
Mar ’24
How let scroll event 'sink' to parent view?
I have an uncommon scenario here. outer tableview +--------------------------+ | column 1| inner tableview| +--------------------------+ Now most often the out tableview has many rows and vertical scrollbar visible. When user try to scroll vertically in the inner tableview but it has no vertical scrollbar (because it has only a few items), I want the scroll event sink into its parent view or better outer tableview, so that user does not have to move cursor to first column in outer tableview and scrolls. Is this possible?
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830
Mar ’24