PanInfo PanLeftResultInfoForVelocity(CGPoint velocity)
{
nfloat ThresholdVelocity = 1000.0f;
nfloat PointOfNoReturn = (nfloat)Math.Floor(LeftMinOrigin()) + SlideMenuOptions.PointOfNoReturnWidth;
nfloat LeftOrigin = LeftContainerView.Frame.X;
PanInfo panInfo = new PanInfo();
panInfo.action = SlideAction.Close;
panInfo.ShouldBounce = false;
panInfo.Velocity = 0.0f;
panInfo.action = LeftOrigin <= PointOfNoReturn ? SlideAction.Close : SlideAction.Open;
if (velocity.X >= ThresholdVelocity)
{
panInfo.action = SlideAction.Open;
panInfo.Velocity = velocity.X;
}
else if (velocity.X <= (-1.0 * ThresholdVelocity))
{
panInfo.action = SlideAction.Close;
panInfo.Velocity = velocity.X;
}
return(panInfo);
}
PanInfo PanRightResultInfoForVelocity(CGPoint velocity)
{
nfloat ThresholdVelocity = -1000.0f;
nfloat PointOfNoReturn = (nfloat)Math.Floor(View.Bounds.Width) - SlideMenuOptions.PointOfNoReturnWidth;
nfloat RightOrigin = RightContainerView.Frame.X;
PanInfo panInfo = new PanInfo();
panInfo.action = SlideAction.Close;
panInfo.ShouldBounce = false;
panInfo.Velocity = 0.0f;
panInfo.action = RightOrigin >= PointOfNoReturn ? SlideAction.Close : SlideAction.Open;
if (velocity.X <= ThresholdVelocity)
{
panInfo.action = SlideAction.Open;
panInfo.Velocity = velocity.X;
}
else if (velocity.X >= (-1.0 * ThresholdVelocity))
{
panInfo.action = SlideAction.Close;
panInfo.Velocity = velocity.X;
}
return(panInfo);
}
public void HandleRightPanGesture(UIPanGestureRecognizer panGesture)
{
if (!IsTargetViewController())
{
return;
}
if (IsLeftOpen())
{
return;
}
switch (panGesture.State)
{
case UIGestureRecognizerState.Began:
if (RightPanState.LastState != UIGestureRecognizerState.Ended &&
RightPanState.LastState != UIGestureRecognizerState.Cancelled &&
RightPanState.LastState != UIGestureRecognizerState.Failed)
{
return;
}
if (IsRightHidden() && RightWillOpen != null)
{
RightWillOpen();
}
else if (RightWillClose != null)
{
RightWillClose();
}
RightPanState.FrameAtStartOfPan = RightContainerView.Frame;
RightPanState.StartPointOfPan = panGesture.LocationInView(View);
RightPanState.WasOpenAtStartOfPan = IsRightOpen();
RightPanState.WasHiddenAtStartOfPan = IsRightHidden();
if (RightViewController != null)
{
RightViewController.BeginAppearanceTransition(RightPanState.WasHiddenAtStartOfPan, true);
}
AddShadowToView(RightContainerView);
SetOpenWindowLevel();
break;
case UIGestureRecognizerState.Changed:
if (RightPanState.LastState != UIGestureRecognizerState.Began &&
RightPanState.LastState != UIGestureRecognizerState.Changed)
{
return;
}
CGPoint Translation = panGesture.TranslationInView(panGesture.View);
RightContainerView.Frame = ApplyRightTranslation(Translation, RightPanState.FrameAtStartOfPan);
ApplyRightOpacity();
ApplyRightContentViewScale();
break;
case UIGestureRecognizerState.Ended:
case UIGestureRecognizerState.Cancelled:
if (RightPanState.LastState != UIGestureRecognizerState.Changed)
{
SetCloseWindowLevel();
return;
}
CGPoint Velocity = panGesture.VelocityInView(panGesture.View);
PanInfo panInfo = PanRightResultInfoForVelocity(Velocity);
if (panInfo.action == SlideAction.Open)
{
if (!RightPanState.WasHiddenAtStartOfPan && RightViewController != null)
{
RightViewController.BeginAppearanceTransition(true, true);
}
OpenRightWithVelocity(panInfo.Velocity);
Track(TrackAction.RightFlickOpen);
}
else
{
if (!RightPanState.WasHiddenAtStartOfPan && RightViewController != null)
{
RightViewController.BeginAppearanceTransition(false, true);
}
CloseRightWithVelocity(panInfo.Velocity);
SetCloseWindowLevel();
Track(TrackAction.RightFlickClose);
}
break;
case UIGestureRecognizerState.Failed:
case UIGestureRecognizerState.Possible:
break;
}
RightPanState.LastState = panGesture.State;
}
