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How to save an Image to NsData object and then retrieve.
My environment is as follows: Xcode 12, macOS BS developing a macOS app. I have an IBOutlet from a IB window as @IBOutlet weak var imageView: NSImageView! So, I want to store imageView to a NSData object and then save the NSData object in my UserDefaults. Once I saved the Image in my UserDefaults I need to be able to decode or retrieve the image for use in other parts of the app. How is this done? Also, I have seen some cautions about converting an Image to NSData object and retrieving. It seems the retrieved image may not be 100% as it was originally. Is this true and if so why? Thanks
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1.2k
Jun ’21
Xcode 13.2 and Github - No Packages listed
I connected Github to Xcode 13.2 (Monterey macOS) successfully, however I do not see any packages available when I select Github as the source. I did download Xcode 13.2 from the developers website and it did fix some problems I was having with Xcode from the App Store but did make any difference to the issue above. Anybody else have this issue with Xcode 13.2?
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1.2k
Mar ’22
How to Activate Printer Panel
How do you activate the Printer Panel using a toolbar printer Icon in a macOS app like you get when I select File -> Print (CMD-P)? This is in a tableView view based screen. I have connected the first responder to "print:" thinking this might work but the printer Icon in the toolbar remains grayed-out. Also, tried connecting it to a @IBAction func but it still is grayed out. I am using Xcode 13 and 14 beta
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370
Jul ’22
How to create bar chart with two or more bars per time period
Environment: Xcode 14.1 beta 3 on macOS Ventura Beta 9. No longer need this, I found example of this. struct LocationsChart: View {     var body: some View {         Chart {             ForEach(seriesData, id: \.city) { series in                 ForEach(series.data, id: \.weekday) {                     BarMark(                         x: .value("Weekday", $0.weekday, unit: .day),                         y: .value("Sales", $0.sales)                     )                 }                 .foregroundStyle(by: .value("City", series.city))                 .position(by: .value("City", series.city))             }         }     }     let seriesData = [         (             city: "Cupertino", data: [                 (weekday: date(year: 2022, month: 5, day: 2), sales: 54),                 (weekday: date(year: 2022, month: 5, day: 3), sales: 42),                 (weekday: date(year: 2022, month: 5, day: 4), sales: 88),                 (weekday: date(year: 2022, month: 5, day: 5), sales: 49),                 (weekday: date(year: 2022, month: 5, day: 6), sales: 42),                 (weekday: date(year: 2022, month: 5, day: 7), sales: 125),                 (weekday: date(year: 2022, month: 5, day: 8), sales: 67)             ]         ),         (             city: "San Francisco", data: [                 (weekday: date(year: 2022, month: 5, day: 2), sales: 81),                 (weekday: date(year: 2022, month: 5, day: 3), sales: 90),                 (weekday: date(year: 2022, month: 5, day: 4), sales: 52),                 (weekday: date(year: 2022, month: 5, day: 5), sales: 72),                 (weekday: date(year: 2022, month: 5, day: 6), sales: 84),                 (weekday: date(year: 2022, month: 5, day: 7), sales: 84),                 (weekday: date(year: 2022, month: 5, day: 8), sales: 137)             ]         )     ] } func date(year: Int, month: Int, day: Int = 1) -> Date {     Calendar.current.date(from: DateComponents(year: year, month: month, day: day)) ?? Date() }
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1.1k
Oct ’22
macOS Xcode 14.2 app applicationwillterminate function is not called
I want to put some code to be run when my app terminates but the following:        func applicationWillTerminate(_ aNotification: Notification) {             // Insert code here to tear down your application             print("Termination Code")         } in the AppDelegate class is not called, any ideas how to fix this issue. I saw this posts https://developer.apple.com/forums/thread/126418 but I do not have an info.plist. I think the info.plist is not longer needed. The following doc does not have much to say about this?? https://developer.apple.com/documentation/appkit/nsapplicationdelegate/1428522-applicationwillterminate
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1.4k
Jan ’23
Progress Indicator not working as expected
I have a test project with a bar progress indicator create on Ventura with Xcode 14.3.1., It does not show the any animation until the @IBAction function completes. I want to show progress as it progresses not a just the end? Any ideas how to fix this? Below is my test project code.. // // ViewController.swift // ProgressTest // // Created by Bob on 6/5/23. // import Cocoa class ViewController: NSViewController { @IBOutlet weak var progressIndicator: NSProgressIndicator! // var progress: Double = 0.0 override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. } override var representedObject: Any? { didSet { // Update the view, if already loaded. } } @IBAction func progressStart(_ sender: Any) { // Start the progress animation progressIndicator.startAnimation(self) // Do some work here... // Do some work here... var progress: Double = 0.0 for _ in 0..<100 { // Update the progress value in a loop progress += 1.0 progressIndicator.doubleValue = progress // progress = Double(i) // progressIndicator.increment(by: 10) // progressIndicator.doubleValue = progress // Do some work here... } // Stop the progress animation progressIndicator.stopAnimation(self) } } thanks Bob
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1.3k
Jun ’23
How to customize buttons in a SwiftUI view toolbar
I have the following test code import SwiftUI struct ContentView: View { @State private var field1 = "" @State private var field2 = "" @State private var field3 = "" var body: some View { VStack { Form { Section(header: Text("Input Fields")) { TextField("Field 1", text: $field1) TextField("Field 2", text: $field2) TextField("Field 3", text: $field3) } } List { ForEach(1..<6) { index in Text("Item \(index)") } } .listStyle(InsetListStyle()) } .navigationTitle("Form and List View") .toolbar { ToolbarItem(placement: .cancellationAction) { Button("Dismiss") { // Handle dismiss action } .foregroundStyle(.red) // } ToolbarItem(placement: .primaryAction) { Button("Done") { // Handle done action } .foregroundStyle(.green) // } } } } I can't customize the color of the Buttons. Besides .foreground modifier I have tried ..foregroundColor(.red) and .foregroundColor(.green) to no avail. How can I customize the buttons in the toolbar for both macOS and IOS
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1k
Aug ’23
SwiftChart with secondary Y Axis
I created a SwiftChart as below and I would like to have two YAxis, one for amount and the second for count. So, the amount YAxis is a different scale then the count YAxis. Does anybody have an example of this or shed some light on coding two different YAxis? Thanks ForEach(seriesArt) { series in ForEach(series.chartSeries.chartEntry) { BarMark( x: .value("Tier", $0.tier), y: .value("Price", $0.keyValue) ) } .foregroundStyle(by: .value("Count", series.chartCategory)) .position(by: .value("Price", series.chartCategory)) } } .frame(width: 400, height: 200) .chartXAxis { AxisMarks(position: .bottom, values: .automatic) { AxisValueLabel() .foregroundStyle(Color.white) } } .chartYAxis { AxisMarks(position: .leading, values: .automatic) { value in AxisGridLine(centered: true, stroke: StrokeStyle(lineWidth: 1)) AxisValueLabel() { if let intValue = value.as(Int.self) { Text("\(intValue)") .font(.system(size: 10)) .foregroundColor(.white) } } } .chartYAixs - for count sum by tier which needs to be a different scale from the amount YAxis } } }
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1.1k
Apr ’24
How to use NSSpellChecker and NSTextCheckingController?
I have been looking for information on how to implement NSSpellChecker and NSTextCheckingController the last couple of days and have come up empty. Does anybody of some information using these two AppKit API's or even better an example on using them with an IBOutlet text field? I understand Apple use to make available the source code for textEdit app? Does anybody know if this is still the case? Thanks
5
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1.3k
Feb ’21
How to use combo box cell in a tableView
I have a test app with a tableView that has a comboBoxCell for one of the columns in Xcode 12: The view controller code is as follows: // //  ViewController.swift //  ComboBoxExample // //  Copyright © 2016 yourCompany. All rights reserved. // import Cocoa class ViewController: NSViewController, NSComboBoxCellDataSource {     var states = ["Alabama", "Alaska", "Arizona", "Arkansas", "California", "Colorado", "Connecticut", "Delaware",                   "Florida", "Georgia", "Hawaii", "Idaho", "Illinois", "Indiana", "Iowa", "Kansas", "Kentucky",                   "Louisiana", "Maine", "Maryland", "Massachusetts", "Michigan", "Minnesota", "Mississippi",                   "Missouri", "Montana", "Nebraska", "Nevada", "New Hampshire", "New Jersey", "New Mexico",                   "New York", "North Carolina", "North Dakota", "Ohio", "Oklahoma", "Oregon", "Pennsylvania",                   "Rhode Island", "South Carolina", "South Dakota", "Tennessee", "Texas", "Utah", "Vermont",                   "Virginia", "Washington", "West Virginia", "Wisconsin", "Wyoming"]     @IBOutlet weak var itemComboCell: NSComboBoxCell!     override func viewDidLoad() {         super.viewDidLoad()         itemComboCell.usesDataSource = true         itemComboCell.dataSource = self         self.itemComboCell.completes = true         // Do any additional setup after loading the view.     }     override var representedObject: Any? {         didSet {         // Update the view, if already loaded.         }     }     func numberOfItemsInComboBoxCell(in comboBoxCell: NSComboBoxCell) - Int {       // anArray is an Array variable containing the objects         return states.count     }     func comboBoxCell(_ comboBoxCell: NSComboBoxCell, objectValueForItemAt index: Int) - Any {         return (states[index])     } } When running the example I get the following error: 2021-03-05 15:16:29.940373-0600 ComboBoxExample[40515:1914724] *** Illegal NSComboBoxCell data source (ComboBoxExample.ViewController: 0x600000e501b0).  Must implement numberOfItemsInComboBoxCell: and comboBoxCell:objectValueForItemAtIndex: How do I resolve this?
6
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1.4k
Mar ’21