Catalyst - Impossible to pre-select multiple cells of an UITableView under macOS

Question

Created Jun ’20

Replies 3

Boosts 0

Participants 3

Description:
In an iOS / iPad / tvOS / macOS application, under macOS it's impossible to pre-select several cells of the same UITableView.
Visually only one cell is checked and the tableView.indexPathsForSelectedRows property has always only one element.

Instruction:

Create a UITaleView with custom cell and several sections
tableView.allowsMultipleSelection = true
In the custom cell, overload setSelected to show a .checkmark or .none
In awakeFromNib of the custom cell define selectionStyle to .none
In cellForRowAt of the tableview define cells to pre-select, example first cell of each section:

Code Block 		if (indexPath.row == 0) {
						tableView.selectRow(at: indexPath, animated: false, scrollPosition: .none)
				} else {
						tableView.deselectRow(at: indexPath, animated: false)
				}

> Run

Expected result:
Cells visually selected AND indexPathsForSelectedRows reflecting this selection

Obtained result:
Only the last cell called by tableview.selectRow is selected and present in the property indexPathsForSelectedRows

Did you find a solution to have cell preselected and have property indexPathsForSelectedRows representing the display ?

Thanks for your help !

Boost

Answer 1

J0hn OP

Jun ’20

Is the UITableView in “edit mode”? allowsMultipleSelectionDuringEditing Would also need to be true in this situation.

0

Answer 2

sdbg OP

Jun ’20

Hello,

Yes I tried but the result is still inconsistent between iOS & macOS.
I just push a POC with a screenshot, am i doing something wrong?

Demo

Thanks !

0

Answer 3

Frameworks Engineer OP

Apple

Jun ’20

I can reproduce this behavior and as of now unfortunately there isn't a good workaround. It would be great if you could file this via the feedback assistant and include your sample project.

0