如何在UITableViewCell上保留子视图

Question

When the user taps the accessory view, the profile image in the UITableViewCell gets darkened by a black view that gets added on as a subview.

Here is what the cell looks like with the black subview:

Here's the issue: When I tap on another cell, the subview gets removed from the first cell and added to the second:

I would like to keep the subview for all cells that have been tapped.

Here is the code in which I handle that functionality:

 self!.profileImageBlackView.cornerRadius = cell.followUserImage.frame.height/2
 self!.profileImageBlackView.frame = cell.followUserImage.frame
 cell.followUserImage.addSubview(self!.profileImageBlackView)
 cell.followButton.hidden = false

For some reason, the follow button gets added to both cells, but the "profileImageBlackView" gets moved from cell to cell depending upon which one was activated.

Answer 1

You cannot display the same view in different cells. If you add the view to another cell it's removed from the first one. You must create a separate view for each cell.