appkit

Is there a visual guide to the controls in Mac OS/X AppKit? Take, for instance, the following control that appears at different places in XCode UI: I don't know which AppKit control is that. Any ideas? It looks like a series of NSRadioButton views in an NSMatrix . You can determine the former using Accessibility Inspector, which will tell you that these buttons are of the accessibility class AXRadioButton . You can determine the latter using f-script . (You'll need the new 10.7 injection workflow that isn't in 2.1 yet.) 来源： https://stackoverflow.com/questions/8419660/visual-guide-of-appkit

What is the main difference between cell based and view based tableviews in Cocoa. The understanding I have is cell based tableviews are basically used for displaying strings and view based are for custom cells.User events such as dragging rows, selection etc can be handled in view based. cell based tableviews use objectValueForTableColumn: method and view based tables use viewForTableColumn: method. Is my understanding correct?. Or is any other design concerns between these table views. When to go for cell based and when to go for view based. Thanks in advance short answer: A cell can contain

I want to get a thumbnail representation of a file I have to display in my app. I'm using NSURL here: NSDictionary *thumbnails = nil; BOOL success = [fileURL getResourceValue:&thumbnails forKey:NSURLThumbnailDictionaryKey error: &error]; This works fine if I am connected to iCloud, and the URL is a link to a file stored in iCloud. The fileURL is something like: file:///Users/me/Library/Mobile%20Documents/BJXXGLR9R3~com~myapp~icloud/FileStorage/contact-page%20copy.png If I use the same code with a NSURL pointing to a local file, however, the thumbnails dictionary is empty. Here is an example of

Intro When my custom NSTextField is in "text editing mode" and the field editor has been placed in front of it as firstResponder I no longer get the keystrokes through NSTextField.keyDown(...) . I understand that the keystrokes are now being routed through the field editor . Most online recommendations are to override the following method within the delegate of the custom NSTextField : control(_:textView:doCommandBySelector:) I have indeed overridden this method but it doesn't seem to get called? See code below: class FocusDelegate: NSObject, NSTextFieldDelegate{ func control(control:

I saw in the AppKit API Reference that the insertText method is deprecated in OS X v10.11. What am I supposed to use as a replacement? The documentation says - (void)insertText:(id)aString This method is the means by which text typed by the user enters an NSTextView . See the NSInputManager class and NSTextInput protocol specifications for more information. ... In NSTextInput there is a note: IMPORTANT NSTextInput protocol is slated for deprecation. Please use NSTextInputClient protocol, introduced in OS X v10.5, as described in NSTextInputClient Protocol Reference . In NSTextInputClient

I am trying to run an audio file in python from playsound import playsound def main(): playsound('audio.mp3') main() However, I keep getting the following error: File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/playsound.py", line 55, in _playsoundOSX from AppKit import NSSound ImportError: No module named 'AppKit' I am using Python 3.5.4 on macOS 10.12.6. I have tried installing it via pip but I am returned this error: Using cached AppKit-0.2.8.tar.gz Requirement already satisfied: flask in /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site

I have an outline view where I don't want to indent the top couple levels (they have a distinctive appearance anyway), but I do want to indent subsequent levels. How can I do this? I've tried overriding -levelForRow: and -levelForItem: to subtract 2 from the return values, but this didn't help. I also tried overriding -frameOfOutlineCellAtRow: to subtract 2 * indentationPerLevel from the frame's width, but that didn't help either, possibly because I'm not showing disclosure triangles. Any thoughts about how I can fix this issue? The outline view is bound to an NSTreeController , which makes it

I'm having difficulties to understand exactly WHEN autorelease pools are created and released in AppKit apps. For example, if I have an ApplicationController class that overrides init, is there an autorelease pool that gets created before it starts and gets drained after it ends? The main thread in an AppKit application runs an NSRunLoop to process events. NSRunLoop creates a new autorelease pool every time it processes a new event (or timer) and drains it once control flow has returned to the NSRunLoop. So in essence, every pass through the run loop has a fresh autorelease pool. 来源： https:/