How to display show/Hide button in highlight regular mode of NSOutlineView?
I have a grop item at the top of NSOutlineview. I try to display show/hide button in that group item, but I can't find any method to do it. The source list mode can display it but regular mode doesn't.
Is it possible to display show/hide button in highlight regular mode of NSOutlineview?
thanks for helping
This behavior is specific to the source list appearance. There is no public API for getting around this, as it's an intentional enforcement (on Apple's part) of standardized appearances. You could dig around in the headers to look for a way to "hotwire" things, but use of private API bars you from distributing your app through the App Store.
The easier (non-private-API-using) route is to create your own cell view with a borderless button with show/hide title. Use a mouse tracking area (see NSTrackingArea) on the cell view (the superview of your button) to set the button's alpha (via its animator) to fade the button in/out on mouse in/out. Your button would tell the outline view to expand/collapse its cell view's represented item (the easiest way would be to define an outlet to the button via your custom NSView cell view class and configure the button's target/action when the cell view is created for the item).
Related
The toolbar in Pages (Numbers, Keynote) has a NSPopUpButton with a fixed image (irrespective of the menu that is selected). Using view debugging it turns out that this is a standard NSPopUpButton with a fixed image.
According to the NSPopUpButton docs regarding setImage:,
This method has no effect.
The image displayed in a pop up button cell is taken from the selected
menu item (in the case of a pop up menu) or from the first menu item
(in the case of a pull-down menu).
This means that this standard NSPopUpButton has non-standard behaviour.
How could this be implemented? Because setImage: has no effect, subclass the NSPopUpButtonCell and overriding -drawImage:withFrame:inView: has no effect (because it is never called).
The problem here is confusion: Pull down menus display their menu's first menu item as the image/title.
Don't use -setImage: to display a static image in a -pull down menu. Instead set the first element of the menu to be the image/title that you want to display and add the selection options as additional menu items.
#Volker is absolutely correct. This is the built-in behaviour but you set the image by setting the first element in the menu not using setImage: or setTitle:.
Example, https://github.com/danieljfarrell/Toolbar-with-Pull-Down-Menu
How can you add or replace a view within a view with code? I'm programming for OSX, not IOS.
I am using a drawer that utilizes a custom view. In the custom view I have two boxes, one with a custom set of icons that I want to stay static and another box that has the information related to that button. What I want to do is when a user clicks one of the buttons that the 2nd box view changes to reflect the info for that button.
For example, I have five buttons and the default 2nd box is "Info", if the user clicks the 2nd button in the first box view I want to change the 2nd box to be the "List" box instead while the 1st box with the buttons stays intact.
I'm not sure how this would impact constraints since while the first box is a fixed size, the 2nd box needs to be dynamic so that it fills in the "rest of the space" so that when the drawer size changes with the window size that the 2nd box is taking up the remaining real estate.
Thank you!
I have implemented such a scenario in the past using a tabless NSTabView, and an NSSegmentedControl (for the buttons). The NSTabView has it's -takeSelectedTabViewItemFromSender: action connected to the NSSegmentedControl, using Interface Builder.
In the Connections Inspector, this shows up like so:
This has the effect that the index of the selected NSTabViewItem in your NSTabView will correspond to the index of the selected segment in the NSSegmentedControl.
How can I implement swipe to see more options? There are lot of libraries that I could readily use, but they all are designed for iPhone apps. In iPad you have a lot of space, and I want to stack the buttons vertically instead of horizontally.
Is there any library for this? If not, how should I go about building this as a custom cell?
I tried building a custom UITableViewCell class which adds a UIScrollView, but it's not the same as showing the buttons beneath the cell.
Based on your inputs I have created a simple custom cell with basic functionality of swipe to see utility buttons and of course buttons stacked vertically.
What I did was, add a UIView beneath the cell's content view and positioned at right. Now depending on the number of buttons provided each button's height is adjusted accordingly. And delegates are provided for button clicks.
Swipe gestures are added. On swiping left it will animate and shift the cell's content view to reveal the button view. On swiping right it will reset the cell to original position.
You can customise it from here onwards as you wish :)
I have uploaded them over here : https://github.com/srikanth-vm/GSSwipeableCell
So I want the ability to change the title of the UINavigationItem from within the app. To be more specific, I want to be able to tap the title on the navigation bar and have it go into edit mode; where I can type in a new title. Is there any way to do this?
It's quite possible and not very hard in fact. Here are the simple steps:
Navigation item allows for custom views in its title
Add a view with a label similar to that of the native navigation item
Add a transparent button (custom button) on top of the label
Add a hidden text field on top of the button
When the button is pressed, hide the label and show the text field - focus on the text field (becomeFirstResponder)
You are in editing mode: now track for "Return" key being pressed, and once that happens set your label text to what has been entered, resign first responder from the text field and hide it, then show the label
If you adjust all the properties of the UI components it will look like your navigation item supports inline editing!
I have an NSPopUpButton providing the NSMenu for a status item with a custom view. The popup button displays a list of links. When the user selects a link from the list, the link is displayed in the user's browser (in the background).
Naturally, the menu closes every time the user selects a link.
I would like to change this: I want the menu to stay open while the user clicks on various links, all of which can be opened in the background. The menu can then go away when the user clicks elsewhere.
How can this be accomplished? Should I subclass NSMenuItem and intercept the mouse clicks somehow? Overlay a transparent NSView on the popped-up menu and, again, intercept the clicks somehow? I make these suggestions blithely, but I would have trouble implementing either of these...pointers to the right methods for override would be appreciated.
Instead of using a menu, one might use a collapsible box.I have seen that in many apps ( also provided by Apple) , so I guess this is the recommended style guide for multiple selections.
The collapsible box expands when you click the disclosure button, and it gives free all items desired - like a tableview with checkboxes.
Views below this box must move down in this case, not to interfere with the box.
Clicking again on the disclosure button will shrink the box back to its origin. The effect is similar to closing a menu.
Usually you should not bend a control too far past it's original intent. Users expect pop up buttons to close after making a selection. I don't think you should, or can, force NSPopUpButtonCell to behave in this way. If you do, you'll be subclassing and modifying the control so heavily that it might change/break with a future version of Mac OS X. You'd also have to worry about the usability problem of users thinking the menu will close after making a selection.
You might consider writing you're own subclass of NSView to work like the menu button you're describing. After the user clicks on the button. You'll want to create a new NSWindow, with no border by using NSBorderlessWindowMask as the style mask. The content view of that window should be another custom view of yours that you implement the menu selection in.