nstextfield

问题 I need somebody to show me how to allow specific characters in a nstexfield in swift. For example when a user tries to enter a character which is not in the list the nstexfield will not show that character in the field.. Very simple. There are many IOS examples out there but could not find an OSX example. 回答1: First add a NSTextFieldDelegate to your class... and then add this : override func controlTextDidChange(obj: NSNotification) { let characterSet: NSCharacterSet = NSCharacterSet

问题 How can I programatically select all the text in a NSTextField using Swift? For UITextField theres a method like textField.selectedTextRange = textField.textRangeFromPosition(...) 回答1: Try this in a playground: import XCPlayground import AppKit let view = NSView(frame: CGRect(x: 0, y: 0, width: 300, height: 300)) XCPShowView("view", view) let txtf = NSTextField(frame: CGRect(x: 50, y: 50, width: 200, height: 50)) view.addSubview(txtf) txtf.stringValue = "falling asleep at the keyboard..."

问题 How can I programatically select all the text in a NSTextField using Swift? For UITextField theres a method like textField.selectedTextRange = textField.textRangeFromPosition(...) 回答1: Try this in a playground: import XCPlayground import AppKit let view = NSView(frame: CGRect(x: 0, y: 0, width: 300, height: 300)) XCPShowView("view", view) let txtf = NSTextField(frame: CGRect(x: 50, y: 50, width: 200, height: 50)) view.addSubview(txtf) txtf.stringValue = "falling asleep at the keyboard..."

问题 I'm running into the strangest issue with my NSOutlineView : Everything is set up in a storyboard, i.e. the outline view and two NSTableCellView s The two cell views are mostly the same, only one shows an icon, the other one doesn't I can begin editing an item (row) by pressing the Return key, i.e. the NSTextField that is part of my NSTableCellView enters into edit mode. This is the default behavior and works fine so far. However: After editing ends and the item was changed, I use the second

问题 I'm running into the strangest issue with my NSOutlineView : Everything is set up in a storyboard, i.e. the outline view and two NSTableCellView s The two cell views are mostly the same, only one shows an icon, the other one doesn't I can begin editing an item (row) by pressing the Return key, i.e. the NSTextField that is part of my NSTableCellView enters into edit mode. This is the default behavior and works fine so far. However: After editing ends and the item was changed, I use the second

问题 I would like to change the background color of a SwiftUI text editor on macOS. Is there a variant for the code below (used for iOS) to work for NSTextField instead of UITextView? Thanks. struct ContentView: View { init() { UITextView.appearance().backgroundColor = .clear } var body: some View { TextEditor(text: .constant("Placeholder")) .background(Color.red) } } 回答1: I have just posted an answer for that issue on a similar question here With the help of extension, you can clear the default

问题 I would like to change the background color of a SwiftUI text editor on macOS. Is there a variant for the code below (used for iOS) to work for NSTextField instead of UITextView? Thanks. struct ContentView: View { init() { UITextView.appearance().backgroundColor = .clear } var body: some View { TextEditor(text: .constant("Placeholder")) .background(Color.red) } } 回答1: I have just posted an answer for that issue on a similar question here With the help of extension, you can clear the default

来源： https://stackoverflow.com/questions/22033138/set-limit-to-nstextfield

问题 I need to programmatically make some labels and text fields. I can get there. //create the file name label NSTextField* newFileNameLabel = [[NSTextField alloc] initWithFrame:NSMakeRect(objXPos, objYPos, 300.0, 20.0)]; //set properties [newFileNameLabel setBordered: NO]; [newFileNameLabel setTextColor: [NSColor whiteColor]]; [newFileNameLabel setDrawsBackground:NO]; [newFileNameLabel setEditable:NO]; [newFileNameLabel setStringValue: @"File Name:"]; [vSheetView addSubview:newFileNameLabel];

问题 I'm new to coding and about to tear my hair out. I have a split view set up (macOS app) and I'm just trying to get a label on the left hand side to update to text entered on the right as the user is typing. I’ve been struggling for around 15+ hours with this problem. I’ve searched extensively and tried many solutions (notably those found at Swift3: Live UiLabel update on user input), below are all the attempts that have build successfully but none change the label when entering text. I’m