iOS 8 UITableView separator inset 0 not working

Question

I have an app where the UITableView\'s separator inset is set to custom values - Right 0, Left 0. This works perfectly in iOS 7.

Answer 1

After having seen the answers at floor 3, I tried to figure out what the relationship of setting up the separator between TableView & TableViewCell and did some test. Here are my conclusions:

1. we can consider that setting the cell's separator to zero has to move the separator in two steps: first step is to set cell's separatorinset to zero. second step is to set cell's marginlayout to zero.

2. set the TableView's separatorinset and marginlayout can affect the Cell's separatorinset. However, from the test, I find that the TableView's separatorinset seem to be useless, TableView's marginlayout can actually affect cell's marginlayout.

3. set Cell's PreservesSuperviewLayoutMargins = false, can cut off TableView's marginlayout effect on Cells.

4. one of the solutions:

   func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
       var cell = UITableViewCell()
   
       cell.preservesSuperviewLayoutMargins = false
       cell.separatorInset = UIEdgeInsetsZero
       cell.layoutMargins = UIEdgeInsetsZero
   
       return cell
   }