CODEWITHSUNDEEP
cocoanstableviewappkitnsoutlineview
Edward Anthony
Edward Anthony

Reputation: 3464

NSOutlineView moveItem() and reloadItem() doesn't work

I have an NSOutlineView. I've set the delegate and data source. It displays all data correctly after I do outlineView.reloadData()

You could picture my outline view like this:

Room A
      - Ash
     - Brock

Room B
      - Misty
     - Professor Oak

I do some editing to the data (not to the outlineView) and move "Misty" to Room A.

Room A
      - Ash
     - Brock
     - Misty

Room B
      - Professor Oak

After I do outlineView.reloadData(), it shows the updated data correctly.

Then, I change

outlineView.reloadData()

with

outlineView.moveItem(at: 0, inParent: room[1], to: 2, inParent: room[0])

But nothing happens. I checked the data source, and the data source wasn't called. It's only called if I do outlineView.reloadData().

I also tried to do outlineView.reloadItem() and it also didn't work.

Any idea why outlineView.moveItem() doesn't work?

Upvotes: 0

Views: 252

Answers (1)

Edward Anthony
Edward Anthony

Reputation: 3464

I can't believe how unreliable Cocoa / Appkit framework is compared to UIKit.

The reason why the moveItem() doesn't work is because the NSOutlineView only supports Objective-C NSObject. You can't use plain Swift class for the NSOutlineView's item object.

Upvotes: 0

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