我在Xamarin Forms应用程序上使用Skiasharp。通过SKTouchAction，我试图捕获SKTouchAction.Pressed和SKTouchAction.Released的持续时间，并查找手势是否为长按。但问题是SKTouchAction.Released在Android上未触发。

protected override void OnTouch(SKTouchEventArgs e)
{   
  switch (e.ActionType)            
  {
    case SKTouchAction.Moved:
    break;
    case SKTouchAction.Pressed:
   //save current time here
   break;
   case SKTouchAction.Released:
   //Compare time here to check long press
   break;
 }
}