I was also looking for this functionality but the answer is you can't at this time. If you are looking to get a search field like behaviour where the search magnifier is located inside of the focus you can not get the exact behaviour. The best solution I got so far is to copy a magnifier form SF Symbols in the label of a TextField. With this solution it looks nearly the same but the magnifier goes out of the way if the user starts typing (maybe even better as the original solution, of course without a search menu attached). Another option I tried is to use a TextEditor by monitoring with onChange on TAB and RETURN to resign the first responder. Unfortunately I failed to resign the responser. Only option was to send keyboard events but this would require user permissions.

@SGB Basically its in you user folder /Library/Containers. Containers folder will be empty in finder. you need to open the Terminal "New Terminal at Folder" command. With a ls in Terminal you will see all containers and can cd a folder to access it.

Same issue here. I had to delete the Fruta app container to get the sidebar back. This is an issue from the beginning of SwiftUI and should be fixed. We still have to use NSSplitViewController to provide a full functional app.

I am getting the same issues. The only thing is to hope that new releases introduced on WWDC 2020 will fix this.

I got the same issue. Did you find a solution ?