Gesture Recognition - Manipulation Events do not fire - winrt-xaml

Question

I am trying to implement gesture recognition using ManipulationStarted and ManipulationDelta events in Windows 10 mobile(UW) app. But there is one problem - they do not fire.
Most likely the problem is my overcomplicated xaml view (I have HorizontalyScrollable GridView inside ListView - and to enable vertical scroll it's all packed in ScrollViewer). But I tried adding those events to all containers and they still did not fire.
Does anyone have/know any sollution ? Below is my xaml page tree:
<ScrollViewer Grid.Row="2" x:Name="SubscribersView" ManipulationStarted="SubscribersView_ManipulationStarted" ManipulationDelta="SubscribersView_ManipulationDelta">
(......)
<ListView
Margin="0"
Grid.Row="0"
SelectionMode="None"
IsItemClickEnabled="True"
ScrollViewer.HorizontalScrollMode="Disabled"
ScrollViewer.VerticalScrollMode="Disabled"
HorizontalAlignment="Stretch" >
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
(......)
<GridView Grid.Row="1"
HorizontalAlignment="Stretch"
Margin="-10"
SelectionMode="None"
IsItemClickEnabled="True"
ScrollViewer.HorizontalScrollMode="Enabled"
ScrollViewer.VerticalScrollMode="Disabled"
ScrollViewer.HorizontalScrollBarVisibility="Visible">
<GridView.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel Orientation="Horizontal"></VirtualizingStackPanel>
</ItemsPanelTemplate>
</GridView.ItemsPanel>
</GridView>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>

Answer 1

For the ScrollViewer you're trying to handle the manipulation events, set the ManipulationMode to All - or as need.
Read more:
https://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.xaml.uielement.manipulationmode

Answer 2

I found a solution - I used ViewChanged of scrollviwer : below is solution
private void SubscribersView_ViewChanged(object sender, ScrollViewerViewChangedEventArgs e)
{
var sv = sender as ScrollViewer;
var verticalOffset = sv.VerticalOffset;
var minVerticalOffset = sv.ExtentHeight - sv.ViewportHeight;
var maxVerticalOffset = sv.ScrollableHeight;
if (maxVerticalOffset < 0 || verticalOffset == maxVerticalOffset || minVerticalOffset <= 0 || verticalOffset <= 0)
{
//reached top or bottom
return;
}
if (verticalOffset > previousVerticalOffset)
{
//Scroll down
if (!popularHidden)
{
MainImageSlideOut.Begin();
popularHidden = true;
}
}
else
{
//Scroll up
if (popularHidden)
{
MainImageSlideIn.Begin();
popularHidden = false;
}
}
previousVerticalOffset = verticalOffset;
}