How can I find the window produced by -[NSApplication orderFrontStandardAboutPanel:]? (I’d like to hide the window when my app deactivates.) I know it’s somewhere in the array -[NSApplication windows]

I have a file type all set up in my target's Document Types and Exported UTIs as so: <key>CFBundleDocumentTypes</key> <array> <dict> <key>CFBundleTypeExtensions</key> <array> <string>livery</string> <

I have an app where I see this crash periodically. Does this look to you like the stream is being destroyed before the run loop releases it? Basically an overrelease? Thread 8 Crashed: 0 com.apple.Cor

Since we finally were able to move up to 10.13 (printing company, historically slow to change), I've noticed that text fields in views and in cell-based table views now exit editing as soon as any cha

Hi all, Can anybody advise on the following exception/crash that I am encountering? The issue is: > [NSWindowGraphicsContext retainedCGImage]: unrecognized selector sent to instance The problem is tha

This is a Swift usage question. I am working on a family of UI objects which share some common behaviors. Having done several, it is time to refactor (for all of the obvious reasons). I would like to

Running Xcode 9.4.1 on macOS 10.4.2, when I click on a combo box in a window, in the debugger I get an exception: > [General] The window has been marked as needing another Display Window > pass, but i

Let me start by saying I have a solution to my problem, but would like to know why some of the other things I tried didn't work... I have some procedures which are performed on background queues (spec

I solved this problem in 2012, and then again in 2014, when a change disrupted things. Now Mojave is changing the playing field once more... The problem: I need to get the icon for the current keyboar

Because of other issues, I am having to use Xcode 9.4.1 for my app. However, there is one function that depends on a third-party tool which fails on macOS 10.14. I'd like to disable the command that c

Has NSAlert changed recently? Looking at the documentation I see that the only initializer (swift) is `init(error: Error)` yet my code never passes an error. Is the Error argument new? But my issue is

Hi all, Given an arbitrary NSColor, how does one get the rgb components to pass to OpenGL APIs? I know the getRed:green:blue:alpha: API, and I know I need to first use colorUsingColorSpace: to get a c

iOS 11, Xcode 10 I have an UITableViewController and the UITableViewCells have a Detail Accessory with an accessory action = Navigation Controller Show Detail The UITableViewController does prepareFor

Hi all, I have some custom controls (views) that I’m updating to be Dark Mode aware. The view’s background is filled using the relevant semantic colour (controlBackgroundColor), and the icon is render

iOS app + Watch App + Watch App Extension all have Capabilities → App Groups → ON selected: group.de.mdenkmann.BikeIosLogger The iOS app has a Settings-Watch.bundle. The Watch.app has: Watch App → con

iOS 12.0.1; watchOS 5.01; Xcode Version 10.0 (10A255) MyWatchApp has all 11 png in Assets.xcassets/AppIcon set. On the watch it’s icon is visible. MyIosApp has all 8 png in Assets.xcassets/AppIcon set

I’ve been recooking up my tools and decided to take another stab at graphic fidelity when preparing graphics for iOS, Android and Mac apps. Previous tests I did in the past indicated that creating gra

Hi, I have an AppID that I want to delete from my Apple Developer account. I select it and Click Edit, Scroll down to the bottom and Click Delete, I then get this message: The App ID ‘xxxxxxxxx.com.lo

Documentation about UIActivity: “You should subclass UIActivity only if you want to provide custom services to the user. " “This class must be subclassed before it can be used. " So what? Kind of conf

I was looking at the Xcode operation Edit > Convert > To Modern Objective-C Syntax, and what it does with NS_DESIGNATED_INITIALIZER markup. I know, I'm late to the party. I often have a subclass of NS