/// <summary>
/// Returns whether a certain touch is within the area that should
/// activate the pan gesture sliding out the menu.
/// </summary>
/// <param name="touch"></param>
/// <param name="sidebar"></param>
/// <returns></returns>
public virtual bool TouchInActiveArea(UITouch touch, Sidebar sidebar)
{
var view = ContentViewController.View;
var position = touch.LocationInView(view).X;
var area = sidebar.GestureActiveArea;
return(sidebar.MenuLocation == MenuLocations.Left ?
position <area :
position> (view.Bounds.Width - area));
}
public void Pan(Sidebar sidebar)
{
if (sidebar.PanGesture.State == UIGestureRecognizerState.Began) {
PanBegan(sidebar.PanGesture, sidebar.MenuLocation, sidebar.GestureActiveArea);
} else if (!_ignorePan && (sidebar.PanGesture.State == UIGestureRecognizerState.Changed)) {
PanChanged(sidebar);
} else if (!_ignorePan && (sidebar.PanGesture.State == UIGestureRecognizerState.Ended ||
sidebar.PanGesture.State == UIGestureRecognizerState.Cancelled)) {
PanEnded(sidebar);
}
}
private void PanChanged(Sidebar sidebar)
{
var xDelta = sidebar.PanGesture.TranslationInView(ContentViewController.View).X;
if (sidebar.MenuLocation == MenuLocations.Left)
{
PanChangedMenuLeft(sidebar.MenuWidth, sidebar.IsOpen, xDelta);
}
else if (sidebar.MenuLocation == MenuLocations.Right)
{
PanChangedMenuRight(sidebar.MenuWidth, sidebar.IsOpen, xDelta);
}
ShowShadowWhileDragging(sidebar.HasShadowing, sidebar.MenuLocation);
}
private void PanEndedTowardClose(Sidebar sidebar)
{
if (ContentViewController.View.Frame.X > -ContentViewController.View.Frame.Width / 2)
{
sidebar.CloseMenu();
}
else
{
UIView.Animate(
Sidebar.SlideSpeed,
0,
UIViewAnimationOptions.CurveEaseInOut,
() => { CloseAnimation(); HideDarkOverlay(); },
() => { });
}
}
public void Pan(Sidebar sidebar)
{
if (sidebar.PanGesture.State == UIGestureRecognizerState.Began)
{
PanBegan();
}
else if (sidebar.PanGesture.State == UIGestureRecognizerState.Changed)
{
PanChanged(sidebar);
}
else if (sidebar.PanGesture.State == UIGestureRecognizerState.Ended ||
sidebar.PanGesture.State == UIGestureRecognizerState.Cancelled)
{
PanEnded(sidebar);
}
}
public void Pan(Sidebar sidebar)
{
if (sidebar.PanGesture.State == UIGestureRecognizerState.Began)
{
PanBegan(sidebar.PanGesture, sidebar.MenuLocation, sidebar.GestureActiveArea);
}
else if (!_ignorePan && (sidebar.PanGesture.State == UIGestureRecognizerState.Changed))
{
PanChanged(sidebar);
}
else if (!_ignorePan && (sidebar.PanGesture.State == UIGestureRecognizerState.Ended ||
sidebar.PanGesture.State == UIGestureRecognizerState.Cancelled))
{
PanEnded(sidebar);
}
}
/// <summary>
/// Contructor.
/// </summary>
/// <param name="rootViewController">
/// The view controller that the Sidebar is being added to.
/// </param>
/// <param name="contentViewController">
/// The view controller for the content area.
/// </param>
/// <param name="navigationViewController">
/// The view controller for the side menu.
/// </param>
public SidebarController(
UIViewController rootViewController,
UIViewController contentViewController,
UIViewController menuViewController)
{
_sidebar = new Sidebar(rootViewController, contentViewController, menuViewController);
_sidebar.StateChangeHandler += (sender, e) => {
if (StateChangeHandler != null)
StateChangeHandler.Invoke(sender, e);
};
ChangeMenuView(menuViewController);
ChangeContentView(contentViewController);
AttachSidebarControllerToRootController(rootViewController);
}
/// <summary>
/// Contructor.
/// </summary>
/// <param name="rootViewController">
/// The view controller that the Sidebar is being added to.
/// </param>
/// <param name="contentViewController">
/// The view controller for the content area.
/// </param>
/// <param name="navigationViewController">
/// The view controller for the side menu.
/// </param>
public SidebarController(
UIViewController rootViewController,
UIViewController contentViewController,
UIViewController menuViewController)
{
_sidebar = new Sidebar(rootViewController, contentViewController, menuViewController);
_sidebar.StateChangeHandler += (sender, e) => {
if (StateChangeHandler != null)
{
StateChangeHandler.Invoke(sender, e);
}
};
ChangeMenuView(menuViewController);
ChangeContentView(contentViewController);
AttachSidebarControllerToRootController(rootViewController);
}
private void PanEndedTowardClose(Sidebar sidebar) {
if (ContentViewController.View.Frame.X > -ContentViewController.View.Frame.Width / 2) {
sidebar.CloseMenu();
} else {
UIView.Animate(
Sidebar.SlideSpeed,
0,
UIViewAnimationOptions.CurveEaseInOut,
() => { CloseAnimation(); },
() => { });
}
}
private void PanEnded(Sidebar sidebar) {
var xDelta = sidebar.PanGesture.TranslationInView(ContentViewController.View).X;
var velocity = sidebar.PanGesture.VelocityInView(ContentViewController.View).X;
if ((sidebar.MenuLocation == MenuLocations.Left && sidebar.IsOpen && xDelta < 0) ||
(sidebar.MenuLocation == MenuLocations.Right && sidebar.IsOpen && xDelta > 0))
{
PanEndedTowardClose(sidebar);
}
var flungOpenFromLeft = (sidebar.MenuLocation == MenuLocations.Left && (velocity > sidebar.FlingVelocity || ContentViewController.View.Frame.X > (sidebar.MenuWidth * sidebar.FlingPercentage)));
var flungOpenFromRight = (sidebar.MenuLocation == MenuLocations.Right && (velocity < -sidebar.FlingVelocity || ContentViewController.View.Frame.X < -(sidebar.MenuWidth * sidebar.FlingPercentage)));
if (flungOpenFromLeft || flungOpenFromRight) {
sidebar.OpenMenu();
} else {
UIView.Animate(
Sidebar.SlideSpeed,
0,
UIViewAnimationOptions.CurveEaseInOut,
() => { ContentViewController.View.Frame = new RectangleF(0, 0, ContentViewController.View.Frame.Width, ContentViewController.View.Frame.Height); },
() => {});
}
}
private void PanChanged(Sidebar sidebar) {
var xDelta = sidebar.PanGesture.TranslationInView(ContentViewController.View).X;
if (sidebar.MenuLocation == MenuLocations.Left) {
PanChangedMenuLeft(sidebar.MenuWidth, sidebar.IsOpen, xDelta);
} else if (sidebar.MenuLocation == MenuLocations.Right) {
PanChangedMenuRight(sidebar.MenuWidth, sidebar.IsOpen, xDelta);
}
ShowShadowWhileDragging(sidebar.HasShadowing, sidebar.MenuLocation);
}
public SlideoutPanDelegate(Sidebar sidebar)
{
_sidebar = sidebar;
}