Section Gap on IOS 11

[Wicked Waring]

Hi,

If you use MTD (I am using the latest IOS 11 tooling) you get a N pixel blank gap at the end of each section (it looked like it could be the header initially) when using Plain table style.

I had a legacy app that suddenly just went wonky when upgrading to IOS 11.

The confusing bit was that the sample does not exhibit this as I found out you need to update the app icon and launch images to use an asset catalog so it uses full screen / @3x mode, then you can see the padding everywhere.

After tracing through the code, I noticed this was the culprit -

public override nfloat GetHeightForHeader (UITableView tableView, nint sectionIdx)
		{
			var section = Root.Sections [(int) sectionIdx];
			if (section.HeaderView == null)
				return -1;
			return section.HeaderView.Frame.Height;
		}

if you return -1 then the gap happens, 0 removes it, I am just in the middle of downloading the IOS 8 emulators to see how to complete the code (see if we need any version branching on the - 1 / 0).

Do you want me to update the sample and submit a pull request when I think I have a fix?

Example -