在 UWP 中触发 DoubleTappedEvent 时如何停止 TappedEvent？

Question

我有一个带有点击和双点击事件的 Stackpanel。

        StackPanel ButtonPanel=new StackPanel{Widyh=100,Height=30};
        ButtonPanel.IsDoubleTapEnabled = true;
        ButtonPanel.DoubleTapped += ButtonPanel_DoubleTapped;
        ButtonPanel.Tapped += ButtonPanel_Tapped;

        private void ButtonPanel_Tapped(object sender, TappedRoutedEventArgs e)
        {
        Debug.WriteLine("Tapped");
        }

        private void ButtonPanel_DoubleTapped(object sender, DoubleTappedRoutedEventArgs e)
        {
        Debug.WriteLine("Double");
        }

当我双击 Stackpanel 时，它会先触发点击事件，然后再触发 doubleTapped event.In 在这种情况下，我不想触发点击事件。双击时如何停止触发 tappedEvent？我想对 tapped 和 doubeTapped 事件执行单独的操作。如何在 UWP 中实现？

Answer 1

official document 提到“如果您想要 Tapped 与 DoubleTapped 的不同逻辑，您的 Tapped 处理程序可能需要使用特定于应用程序的变量和计时器以避免运行最终被解释为 DoubleTap 操作。”

所以你可以像下面这样解决这个问题。

    public bool singleTap;  
    private async void ButtonPanel_Tapped(object sender, TappedRoutedEventArgs e)
    {
        singleTap = true;
        await Task.Delay(200);
        if (this.singleTap)
        {
         
            Debug.WriteLine("Tapped");
        }
            
    }

    private void ButtonPanel_DoubleTapped(object sender, DoubleTappedRoutedEventArgs e)
    {
        singleTap = false;
        Debug.WriteLine("Double");
    }

在 UWP 中触发 DoubleTappedEvent 时如何停止 TappedEvent？

how to stop TappedEvent when DoubleTappedEvent is fired in UWP?

uwp

uwp-xaml