{"id":42091,"date":"2024-02-13T16:24:38","date_gmt":"2024-02-13T21:24:38","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=42091"},"modified":"2024-02-14T10:53:34","modified_gmt":"2024-02-14T15:53:34","slug":"dragging-from-a-list-with-swiftui","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2024\/02\/13\/dragging-from-a-list-with-swiftui\/","title":{"rendered":"Dragging From a List With SwiftUI"},"content":{"rendered":"

Marco Arment<\/a>:<\/p>\n

I wish so badly that SwiftUI’s .onMove<\/code> supported multiple-item selection in a List<\/code>.<\/p>

I should never need to tell my customers, “That was too difficult to achieve in SwiftUI, so that feature is gone.”<\/p><\/blockquote>\n\n

It’s scary reading stuff like this because, glancing at the API<\/a>, the source is an IndexSet<\/code>, so it seems like it was designed to handle multiple items. How are you supposed to know ahead of time that this doesn’t work? I was hoping to see someone reply, telling Arment what he was doing wrong, but instead there were two links to forum<\/a> threads<\/a> about list dragging being broken.<\/p>\n\n

Tim Schmitz<\/a>:<\/p>\n

\n

This category of problem still really concerns me about the future of Apple’s UI frameworks. There are some things that were possible in UIKit that just aren’t in SwiftUI, and Apple doesn’t seem too bothered by some of them.<\/p>\n<\/blockquote>\n\n

This is basic stuff, not obscure features. The iOS and macOS interfaces make heavy use of lists and tables. And SwiftUI was introduced almost 5 years ago<\/em>.<\/p>\n\n

Arcticulate<\/a>:<\/p>\n

\n

SwiftUI 5 feels mostly feature complete on the iOS side, but List<\/code> keeps being hard for Apple to get right it seems. In terms of onDelete<\/code> and onMove<\/code>, they have improved a bit over the years but still problematic.<\/p>\n<\/blockquote>\n\n

On the Mac side, I periodically take a look at Shortcuts to see how it’s doing. It still doesn’t support dragging and dropping shortcuts from the list into a folder in the sidebar (even if you only drag one). It does let me re-order a multiple selection, though it also lets me try when a sort is in effect, which of course doesn’t work. Whenever I click on something in the sidebar it loses the sort and goes back to the manual ordering. I don’t know what the thinking was here.<\/p>\n\n

Previously:<\/p>\n