Prior to macOS Big Sur, I could create an NSOutlineView and hide the default show/hide arrows that expand and collapse groups of items. But now in Big Sur, I can't find any way to get rid of the default arrows. I'm using my own arrow style and functionality.
Here's a screenshot:
I have my NSOutlineView set to have a Plain Style since I also provide my own margins around the rows. But I don't see any options in the storyboard editor for hiding the arrows, nor do I see any options under NSOutlineView in the docs for doing it.
Does anyone know how to hide the default expand/collapse arrows in Big Sur?
A reliable way of customizing the disclosure button for NSOutlineView is to subclass NSOutlineView and override a couple key methods. First, override frameOfOutlineCellAtRow: to reposition the arrow where you want. Then, override makeViewWithIdentifier: to customize the view that actually implements the arrow. You can identify it with the identifier NSOutlineViewDisclosureButtonKey.
Achieving the goal in this way is probably both more reliable than however you were doing it before, and likely to be more consistent for technologies like accessibility screen readers.
Related
Several places in OS X (in this example, the Users & Groups pane in System Preferences) have circular image views that allow the user to either drag in an image, like in an editable NSImageView but also allow them to click to show a popover that allows various other choices of image sources.
I have checked the ImageKit framework, but the only thing I found similar is the image taking sheet.
How can I make use of this feature in my own Cocoa applications? I'd imagine it is implemented in some standard framework—but any pointers on implementing something like this would be quite appreciated.
You will have to go down the custom control root as this is not available as a stand alone control.
However you have all the prerequisites.
The circular image view
There a several ways to implement this. You could try using a standard Cocoa button and customise as needed. Although it might just be easier to build from scratch by subclassing NSView. This was you can avoid all the NSCell stuff. I would do the latter.
The popover
Roll your own master-details type view controller to be displayed as the popover's content. In the left have a NSTableView (the master), the right have a NSCollectionView (the details). Below the collection view add some buttons.
I have an older application that has a specific appearance based on NSCell-based NSTableView having Source List highlighting. Unfortunately, on Yosemite this adds the NSVisualEffectView vibrancy under the selected cell which breaks the appearance in an unpleasant way.
I can't find a way to opt-out of this behaviour, unfortunately.
Setting Regular highlighting breaks the appearance in another way (grey selection instead of blue).
Any idea if there is a way to opt-out of this behaviour on 10.10?
You need to change table view appearance from NSAppearanceNameVibrantLight to NSAppearanceNameAqua. If you're targeting OS X 10.8 or earlier try setting the appearance by editing XIB file directly:
<tableView appearanceType="aqua" ...>
Also make sure that table view background color is set to Default in IB.
I don't know if it works for your case, but the best way to disable an implicit visual effect view is to just embed your NSTable/OutlineView in another NSVisualEffectView and set that views state to inactive
visualEffectView.state = .inactive
Is there a bevel style that can replicate NSToolbar style of buttons that are used, for instance, in the Safari's preferences window to switch between different panes?
I need to replicate NSToolbar in an NSView using NSButtons. I understand that I should probably be using NSTabView, but I'd like to implement the look of xcode's left pane. Any tips here would be appreciated greatly.
There's nothing built-in, you'd have to create the images yourself. However, replicating the behaviour is straightforward.
You could simply use a single-row NSMatrix of NSButton objects. Just give the buttons an image and an alternate image (for the highlighted state) and set the matrix mode to NSRadioModeMatrix.
I've been making iOS apps for awhile, but I'm trying my hand at MacOS development. I'm adding an NSTextField to my UI and I noticed in Xcode that one of the options in the graphical widgets is "NSTextField with NSNumberFormatter" which implies to me that I'll be able to restrict the input of the field to numbers and configure the formatter in some way.
When I add the NSTextField with NSNumberFormatter to my UI, I can see it has a formatter outlet which appears to be kind of linked to an NSNumberFormatter (although the name is a little grayed out). However, I can't figure out any way to interact with or configure that NSNumberFormatter.
Any help?
To access the NSNumberFormatter, you have to select it in the dock (that list of objects on the left side of the XCode 4 Interface Builder [IB] window).
If the dock isn't in outline view, e.g., it just shows about 4 icons, click the triangle-in-a-square-button at the bottom of the dock. The dock should now show a "Placeholders" section and an "Objects" section; the objects are your UI objects in a hierarchical outline view.
In the IB window, click your NSTextField; that'll highlight the corresponding Text Field Cell in the outline (you may have to twiddle down some disclosure triangles to see it). The Text Field Cell should have a disclosure triangle; twiddle it down to reveal the Number Formatter. Select it, and you should now be able to manipulate it in the Inspector panel.
(There are a lot of things non-obvious like that in XCode. When in doubt, examine your UI object in the Dock's outline view, or prowl the menus with that object selected. It's amazing--and often useful--what you can discover lurking there!
to configure the number formatter, you can ( after you've selected the formatter ) open the Attributes inspector, select the behavior you want and customize the formatter. At least that worked for me in XCode 4.
– moritz
XCode 4 (but also iTunes and other Mac apps) provide side or bottom bars that can be shown or hidden with a smooth animation as the user presses a button.
How can I obtain a similar effect in my applications?
You can use NSSplitView to do that. You can have more than 2 subviews in a split view (left|center|right) and you can build a kind of hierarchy for the different bars (center consists of top and lower split views).
The show/hide effect is not built in, though. But you should be able to use the animator to do that. Most certainly you can also define animations for hiding a view.
You could also use the BWSplitView of http://brandonwalkin.com/bwtoolkit/ where the show/hide animation is already included.
You could also consider subclassing NSViewAnimation, which I believe Xcode uses in a number of places to achieve its fancy animation effects.