如何在Windows 10 UWP中为网格添加触摸操作事件？

我目前正在Windows 10上工作,我想为用户添加滑动手势.因此,我做了一些研究,发现了操纵事件.我已经尝试了以下代码,但是当我使用鼠标指针而不是使用触摸滑动手势时它可以工作.

 pageLayoutGrid.ManipulationMode = ManipulationModes.TranslateX;
 pageLayoutGrid.ManipulationDelta += PageLayoutGrid_ManipulationDelta;
 pageLayoutGrid.ManipulationCompleted += LayoutManipulationCompleted;

 private void PageLayoutGrid_ManipulationDelta(object sender, ManipulationDeltaRoutedEventArgs e)
    {
        e.Handled = true;
    }

    private void LayoutManipulationCompleted(object sender, ManipulationCompletedRoutedEventArgs e)
    {
        var velocities = e.Velocities.Linear;
        Double swipeLeftRight = velocities.X;
        Double swipeUpDown = velocities.Y;
        // A negative value means swiping to the left
        if (swipeLeftRight < 0)
        {
            navigateToNextPage();
        }
        // a positive value is a swipe to the right.
        else if (swipeLeftRight > 0)
        {
            navigateToPreviousPage();
        }
    }

此Grid的子元素是ScrollViewer.

有人可以建议代码出什么问题吗？

解决方法:

作为对link的参考,这里是解决方案

我在ScrollViewer的PointerEntered事件中禁用ScrollViewer VerticalScrollMode,以便将调用Grid Manipulation事件.操作完成后即在ManipulationCompleted事件中启用VerticalScrollMode

ScrollViewer scroolviewr;
        private void ScrollViewer_PointerEntered(object sender, PointerRoutedEventArgs e)
        {
            scroolviewr = (sender as ScrollViewer); 
            (sender as ScrollViewer).VerticalScrollMode = ScrollMode.Disabled;
        }
private void PageLayoutGrid_ManipulationDelta(object sender, ManipulationDeltaRoutedEventArgs e)
    {
        e.Handled = true;
    }

    private void LayoutManipulationCompleted(object sender, ManipulationCompletedRoutedEventArgs e)
    {
        scroolviewr.VerticalScrollMode = ScrollMode.Enabled;
        var velocities = e.Velocities.Linear;
        Double swipeLeftRight = velocities.X;
        Double swipeUpDown = velocities.Y;
        // A negative value means swiping to the left
        if (swipeLeftRight < 0)
        {
            navigateToNextPage();
        }
        // a positive value is a swipe to the right.
        else if (swipeLeftRight > 0)
        {
            navigateToPreviousPage();
        }
    }




 <Grid ManipulationMode="TranslateX" ManipulationDelta="Grid_ManipulationDelta" ManipulationCompleted="Grid_ManipulationCompleted">
    <ScrollViewer HorizontalScrollBarVisibility="Disabled" HorizontalScrollMode="Disabled" PointerEntered="ScrollViewer_PointerEntered">
    .....
    </ScrollViewer>

</Grid>

标签：windows-10-universal,win-universal-app,c
来源： https://codeday.me/bug/20191027/1941740.html