protected override bool CanBegin(SwipeGesture gesture, FingerGestures.IFingerList touches)
{
if (!base.CanBegin(gesture, touches))
{
return(false);
}
if (touches.GetAverageDistanceFromStart() < 0.5f)
{
return(false);
}
// all touches must be moving
if (!touches.AllMoving())
{
return(false);
}
// if multiple touches, make sure they're all going in roughly the same direction
if (!touches.MovingInSameDirection(0.35f))
{
return(false);
}
return(true);
}
protected override bool CanBegin(DragGesture gesture, FingerGestures.IFingerList touches)
{
if (!base.CanBegin(gesture, touches))
{
return(false);
}
// must have moved beyond move tolerance threshold
if (touches.GetAverageDistanceFromStart() < ToPixels(MoveTolerance))
{
return(false);
}
// all touches must be moving
if (!touches.AllMoving())
{
return(false);
}
// if multiple touches, make sure they're all going in roughly the same direction
if (RequiredFingerCount >= 2 && ApplySameDirectionConstraint && !touches.MovingInSameDirection(0.35f))
{
return(false);
}
return(true);
}
protected override bool CanBegin(FingerGestures.IFingerList touches)
{
if (!base.CanBegin(touches))
{
return(false);
}
if (touches.GetAverageDistanceFromStart() < 0.5f)
{
return(false);
}
return(true);
}
protected override GestureRecognitionState OnRecognize(LongPressGesture gesture, FingerGestures.IFingerList touches)
{
if (touches.Count != RequiredFingerCount)
{
return(GestureRecognitionState.Failed);
}
if (gesture.ElapsedTime >= Duration)
{
return(GestureRecognitionState.Recognized);
}
// check if we moved too far from initial position
if (touches.GetAverageDistanceFromStart() > ToPixels(MoveTolerance))
{
return(GestureRecognitionState.Failed);
}
return(GestureRecognitionState.InProgress);
}
protected override bool CanBegin(DragGesture gesture, FingerGestures.IFingerList touches)
{
if (!base.CanBegin(gesture, touches))
{
return(false);
}
//若是在Ui层上滑动，false
if (IsPointerOverUIObject())
{
return(false);
}
// must have moved beyond move tolerance threshold
if (touches.GetAverageDistanceFromStart() < ToPixels(MoveTolerance))
{
return(false);
}
// all touches must be moving
if (!touches.AllMoving())
{
return(false);
}
// if multiple touches, make sure they're all going in roughly the same direction
if (RequiredFingerCount >= 2 && ApplySameDirectionConstraint && !touches.MovingInSameDirection(0.35f))
{
return(false);
}
//判断allPages是否有isActive为true
foreach (var item in PageMgr.allPages.Values)
{
if (item.name == "UIParkPage" || item.name == "UIEntryPage" || item.name == "UIZooPage" || item.name == "UILoading" || item.name == "UIMapPage")
{
if (item.isActive() == true)
{
return(false);
}
}
}
return(true);
}
protected override GestureState OnActive(FingerGestures.IFingerList touches)
{
if (touches.Count != RequiredFingerCount)
{
return(GestureState.Failed);
}
if (ElapsedTime >= Duration)
{
RaiseOnLongPress();
return(GestureState.Recognized);
}
// check if we moved too far from initial position
if (touches.GetAverageDistanceFromStart() > MoveTolerance)
{
return(GestureState.Failed);
}
return(GestureState.InProgress);
}