[Android] Fix bidirectional scrolling on Android (#13623)

* [Android] Fix bidirectional scrolling on Android

* Apply suggestions from code review

Co-authored-by: Samantha Houts <samhouts@users.noreply.github.com>

* Update src/Core/src/Platform/Android/MauiScrollView.cs

Co-authored-by: Manuel de la Pena <mandel@microsoft.com>

---------

Co-authored-by: Gerald Versluis <gerald.versluis@microsoft.com>
Co-authored-by: Samantha Houts <samhouts@users.noreply.github.com>
Co-authored-by: Manuel de la Pena <mandel@microsoft.com>

src/Core/src/Platform/Android/MauiScrollView.cs

@@ -187,9 +187,14 @@ protected override void OnLayout(bool changed, int left, int top, int right, int
 		{
 			base.OnLayout(changed, left, top, right, bottom);
 
-			if (_hScrollView != null && _hScrollView.Parent == this)
+			if (_hScrollView?.Parent == this && _content is not null)
 			{
-				_hScrollView.Layout(0, 0, right - left, bottom - top);
+				double scrollViewContentHeight = _content.Height;
+				var hScrollViewHeight = bottom - top;
+				//if we are scrolling both ways we need to lay out our MauiHorizontalScrollView with more than the available height
+				//so its parent the NestedScrollView can scroll vertically
+				var newBottom = _isBidirectional ? Math.Max(hScrollViewHeight, scrollViewContentHeight) : hScrollViewHeight;
+				_hScrollView.Layout(0, 0, right - left, (int)newBottom);
 			}
 
 			if (CrossPlatformArrange == null)