public void ViewWillTransitionToSize(CGSize toSize, IUIViewControllerTransitionCoordinator coordinator)
{
var menu = _basePage.SlideMenu;
// this is used for rotation
double bigValue = UIScreen.MainScreen.Bounds.Height > UIScreen.MainScreen.Bounds.Width ? UIScreen.MainScreen.Bounds.Height : UIScreen.MainScreen.Bounds.Width;
double smallValue = UIScreen.MainScreen.Bounds.Height < UIScreen.MainScreen.Bounds.Width ? UIScreen.MainScreen.Bounds.Height : UIScreen.MainScreen.Bounds.Width;
if (toSize.Width < toSize.Height)
{
ScreenSizeHelper.ScreenHeight = bigValue;
// this is used for mutiltasking
ScreenSizeHelper.ScreenWidth = toSize.Width < smallValue ? toSize.Width : smallValue;
}
else
{
ScreenSizeHelper.ScreenHeight = smallValue;
ScreenSizeHelper.ScreenWidth = toSize.Width < bigValue ? toSize.Width : bigValue;
}
if (!string.IsNullOrEmpty(_currentPopup))
{
GetPopupPositionAndLayout();
// Layout background
_backgroundOverlay.Frame = new CGRect(0, 0, ScreenSizeHelper.ScreenWidth, ScreenSizeHelper.ScreenHeight);
}
if (_dragGesture == null)
{
return;
}
_dragGesture.UpdateLayoutSize(menu);
var rect = _dragGesture.GetHidePosition();
menu.Layout(new Xamarin.Forms.Rectangle(
rect.left,
rect.top,
(rect.right - rect.left),
(rect.bottom - rect.top)));
_dragGesture.LayoutHideStatus();
}
void UpdateMenuLayout()
{
var menu = _basePage.SlideMenu;
if (menu == null || _dragGesture == null)
{
return;
}
//update layout
_dragGesture.UpdateLayoutSize(menu);
var rect = _dragGesture.GetHidePosition();
menu.Layout(new Xamarin.Forms.Rectangle(
rect.left,
rect.top,
(rect.right - rect.left),
(rect.bottom - rect.top)));
_dragGesture.LayoutHideStatus();
}
void LayoutMenu()
{
if (!CheckPageAndMenu())
{
return;
}
// areadly add gesture
if (_dragGesture != null)
{
return;
}
var menu = _basePage.SlideMenu;
_dragGesture = DragGestureFactory.GetGestureByView(menu);
_dragGesture.RequestLayout = (l, t, r, b, density) => {
_menuOverlayRenderer.NativeView.Frame = new CGRect(l, t, (r - l), (b - t));
_menuOverlayRenderer.NativeView.SetNeedsLayout();
};
_dragGesture.NeedShowBackgroundView = (open, alpha) => {
UIView.CommitAnimations();
if (open)
{
ShowBackgroundOverlay(alpha);
}
else
{
HideBackgroundOverlay();
}
};
_basePage.HideMenuAction = () => {
UIView.BeginAnimations("OpenAnimation");
UIView.SetAnimationDuration(((double)menu.AnimationDurationMillisecond) / 1000);
_dragGesture.LayoutHideStatus();
};
_basePage.ShowMenuAction = () => {
UIView.BeginAnimations("OpenAnimation");
UIView.SetAnimationDuration(((double)menu.AnimationDurationMillisecond) / 1000);
_dragGesture.LayoutShowStatus();
};
if (_menuOverlayRenderer == null)
{
_menuOverlayRenderer = Platform.CreateRenderer(menu);
Platform.SetRenderer(menu, _menuOverlayRenderer);
_panGesture = new UIPanGestureRecognizer(() => {
var p0 = _panGesture.LocationInView(_pageRenderer.View);
if (_panGesture.State == UIGestureRecognizerState.Began)
{
_dragGesture.DragBegin(p0.X, p0.Y);
}
else if (_panGesture.State == UIGestureRecognizerState.Changed &&
_panGesture.NumberOfTouches == 1)
{
_dragGesture.DragMoving(p0.X, p0.Y);
}
else if (_panGesture.State == UIGestureRecognizerState.Ended)
{
_dragGesture.DragFinished();
}
});
_menuOverlayRenderer.NativeView.AddGestureRecognizer(_panGesture);
}
var rect = _dragGesture.GetHidePosition();
menu.Layout(new Rectangle(
rect.left,
rect.top,
(rect.right - rect.left),
(rect.bottom - rect.top)));
_menuOverlayRenderer.NativeView.Hidden = !menu.IsVisible;
_menuOverlayRenderer.NativeView.Frame = new CGRect(
rect.left,
rect.top,
(rect.right - rect.left),
(rect.bottom - rect.top));
_menuOverlayRenderer.NativeView.SetNeedsLayout();
}
void LayoutMenu()
{
if (!CheckPageAndMenu())
{
return;
}
var menu = _basePage.SlideMenu;
_dragGesture = DragGestureFactory.GetGestureByView(menu);
_dragGesture.RequestLayout = (l, t, r, b, density) =>
{
menu.Layout(new Xamarin.Forms.Rectangle(
l,
t,
(r - l),
(b - t)));
Canvas.SetLeft(_popMenuOverlayRenderer, l);
Canvas.SetTop(_popMenuOverlayRenderer, t);
Canvas.SetZIndex(_popMenuOverlayRenderer, 254);
_popMenuOverlayRenderer.UpdateLayout();
_mainCanvas.UpdateLayout();
};
_dragGesture.NeedShowBackgroundView = (open, alpha) =>
{
if (open)
{
ShowBackgroundOverlay(alpha);
}
else
{
HideBackgroundOverlay();
}
};
_basePage.HideMenuAction = () =>
{
if (_dragGesture == null)
{
return;
}
_dragGesture.LayoutHideStatus();
// DoubleAnimation wasn't supported by UWP?
//DoubleAnimation dal = new DoubleAnimation();
//dal.From = Canvas.GetLeft(_popMenuOverlayRenderer);
//dal.To = rectp.left;
//dal.Duration = new Duration(TimeSpan.FromMilliseconds(menu.AnimationDurationMillisecond));
//DoubleAnimation dat = new DoubleAnimation();
//dat.From = Canvas.GetTop(_popMenuOverlayRenderer);
//dat.To = rectp.top;
//dat.Duration = new Duration(TimeSpan.FromMilliseconds(menu.AnimationDurationMillisecond));
//(_popMenuOverlayRenderer as UIElement).BeginAnimation(Canvas.LeftProperty, dal);
};
_basePage.ShowMenuAction = () =>
{
if (_dragGesture == null)
{
return;
}
_dragGesture.LayoutShowStatus();
};
if (_popMenuOverlayRenderer == null)
{
_popMenuOverlayRenderer = Platform.CreateRenderer(menu) as LayoutRenderer;
_popMenuOverlayRenderer.PointerPressed += menuOverlayRenderer_PointerPressed;
_popMenuOverlayRenderer.PointerMoved += menuOverlayRenderer_PointerMoved;
_popMenuOverlayRenderer.PointerReleased += menuOverlayRenderer_PointerReleased;
_popMenuOverlayRenderer.PointerExited += menuOverlayRenderer_PointerReleased;
}
var rect = _dragGesture.GetHidePosition();
menu.Layout(new Xamarin.Forms.Rectangle(
rect.left,
rect.top,
(rect.right - rect.left),
(rect.bottom - rect.top)));
Canvas.SetLeft(_popMenuOverlayRenderer, rect.left);
Canvas.SetTop(_popMenuOverlayRenderer, rect.top);
_popMenuOverlayRenderer.Visibility = menu.IsVisible ? Visibility.Visible : Visibility.Collapsed;
_popMenuOverlayRenderer.UpdateLayout();
}
void AddMenu()
{
if (_basePage == null)
{
return;
}
var menu = _basePage.SlideMenu;
if (menu == null)
{
return;
}
_basePage.HideMenuAction = () => {
if (_dragGesture == null)
{
return;
}
var rect = _dragGesture.GetHidePosition();
_popMenuOverlayRenderer.View.Animate()
.X((float)rect.left)
.Y((float)rect.top)
.SetDuration(menu.AnimationDurationMillisecond)
.SetListener(new AnimatorListener(_dragGesture, false))
.Start();
};
_basePage.ShowMenuAction = () => {
if (_dragGesture == null)
{
return;
}
var rect = _dragGesture.GetShowPosition();
_popMenuOverlayRenderer.View.Animate()
.X((float)rect.left)
.Y((float)rect.top)
.SetDuration(menu.AnimationDurationMillisecond)
.SetListener(new AnimatorListener(_dragGesture, true))
.Start();
};
if (_popMenuOverlayRenderer == null)
{
menu.Parent = (Page)_basePage;
_popMenuOverlayRenderer = Platform.CreateRendererWithContext(menu, _context);
Platform.SetRenderer(menu, _popupRenderer);
var metrics = _pageRenderer.Resources.DisplayMetrics;
var rootView = _popMenuOverlayRenderer.View;
if (_popMenuOverlayRenderer is SlideMenuDroidRenderer)
{
_dragGesture = (_popMenuOverlayRenderer as SlideMenuDroidRenderer).GragGesture;
}
if (_dragGesture == null)
{
return;
}
var rect = _dragGesture.GetHidePosition();
menu.Layout(new Xamarin.Forms.Rectangle(
rect.left / metrics.Density,
rect.top / metrics.Density,
(rect.right - rect.left) / metrics.Density,
(rect.bottom - rect.top) / metrics.Density));
_popMenuOverlayRenderer.UpdateLayout();
_popMenuOverlayRenderer.View.Visibility = ViewStates.Visible;
rootView.Layout((int)rect.left, (int)rect.top, (int)rect.right, (int)rect.bottom);
_pageRenderer.ViewGroup.AddView(rootView);
_pageRenderer.ViewGroup.BringChildToFront(rootView);
_dragGesture.NeedShowBackgroundView = (open, alpha) => {
if (open)
{
ShowBackgroundOverlay(alpha);
}
else
{
HideBackgroundOverlay();
}
};
}
}
void LayoutMenu()
{
if (!CheckPageAndMenu ())
return;
// areadly add gesture
if (_dragGesture != null)
return;
var menu = _basePage.SlideMenu;
_dragGesture = DragGestureFactory.GetGestureByView (menu);
_dragGesture.RequestLayout = (l, t, r, b, density) => {
_menuOverlayRenderer.NativeView.Frame = new CGRect (l, t, (r - l), (b - t));
_menuOverlayRenderer.NativeView.SetNeedsLayout ();
};
_dragGesture.NeedShowBackgroundView = (open, alpha) => {
UIView.CommitAnimations ();
if (open)
ShowBackgroundOverlay (alpha);
else
HideBackgroundOverlay ();
};
_basePage.HideMenuAction = () => {
UIView.BeginAnimations ("OpenAnimation");
UIView.SetAnimationDuration (((double)menu.AnimationDurationMillisecond) / 1000);
_dragGesture.LayoutHideStatus ();
};
_basePage.ShowMenuAction = () => {
UIView.BeginAnimations ("OpenAnimation");
UIView.SetAnimationDuration (((double)menu.AnimationDurationMillisecond) / 1000);
_dragGesture.LayoutShowStatus ();
};
if (_menuOverlayRenderer == null) {
_menuOverlayRenderer = RendererFactory.GetRenderer (menu);
_panGesture = new UIPanGestureRecognizer (() => {
var p0 = _panGesture.LocationInView (_pageRenderer.View);
if (_panGesture.State == UIGestureRecognizerState.Began) {
_dragGesture.DragBegin (p0.X, p0.Y);
} else if (_panGesture.State == UIGestureRecognizerState.Changed
&& _panGesture.NumberOfTouches == 1) {
_dragGesture.DragMoving (p0.X, p0.Y);
} else if (_panGesture.State == UIGestureRecognizerState.Ended) {
_dragGesture.DragFinished ();
}
});
_menuOverlayRenderer.NativeView.AddGestureRecognizer (_panGesture);
}
var rect = _dragGesture.GetHidePosition ();
menu.Layout (new Xamarin.Forms.Rectangle (
rect.left,
rect.top,
(rect.right - rect.left),
(rect.bottom - rect.top)));
_menuOverlayRenderer.NativeView.Hidden = !menu.IsVisible;
_menuOverlayRenderer.NativeView.Frame = new CGRect (
rect.left,
rect.top,
(rect.right - rect.left),
(rect.bottom - rect.top));
_menuOverlayRenderer.NativeView.SetNeedsLayout ();
}