Beispiel #1
0
        public async Task <bool> CloseDrawerAsync()
        {
            TapGestureRecognizer.Enabled = false;

            var finished = await UIView.AnimateNotifyAsync(0.2, () => {
                TopView.Frame = TopViewFrame;
            });

            DrawerTransitioning?.Invoke(this, new DrawerTransitioningEventArgs(DrawerTransitioningState.Closed));

            updateStatusBarAppearance();

            return(finished);
        }
        public async override void AnimateTransition(IUIViewControllerContextTransitioning transitionContext)
        {
            UIViewController fromVC   = transitionContext.GetViewControllerForKey(UITransitionContext.FromViewControllerKey);
            UIView           fromView = fromVC.View;
            UIViewController toVC     = transitionContext.GetViewControllerForKey(UITransitionContext.ToViewControllerKey);
            UIView           toView   = toVC.View;

            UIView containerView = transitionContext.ContainerView;

            if (IsPresentation)
            {
                containerView.AddSubview(toView);
            }

            UIViewController animatingVC   = IsPresentation ? toVC : fromVC;
            UIView           animatingView = animatingVC.View;

            CGRect appearedFrame  = transitionContext.GetFinalFrameForViewController(animatingVC);
            CGRect dismissedFrame = appearedFrame;

            CGPoint targetLacation = dismissedFrame.Location;

            targetLacation.X       += dismissedFrame.Size.Width;
            dismissedFrame.Location = targetLacation;

            CGRect initialFrame = IsPresentation ? dismissedFrame : appearedFrame;
            CGRect finalFrame   = IsPresentation ? appearedFrame : dismissedFrame;

            animatingView.Frame = initialFrame;

            UIViewAnimationOptions opt = UIViewAnimationOptions.AllowUserInteraction
                                         | UIViewAnimationOptions.BeginFromCurrentState;
            await UIView.AnimateNotifyAsync(TransitionDuration (transitionContext), 0, 300, 5, opt, () => {
                animatingView.Frame = finalFrame;
            });

            if (!IsPresentation)
            {
                fromView.RemoveFromSuperview();
            }

            transitionContext.CompleteTransition(true);
        }
Beispiel #3
0
        public async override void AnimateTransition(IUIViewControllerContextTransitioning transitionContext)
        {
            UIViewController fromVC   = transitionContext.GetViewControllerForKey(UITransitionContext.FromViewControllerKey);
            UIView           fromView = fromVC.View;
            UIViewController toVC     = transitionContext.GetViewControllerForKey(UITransitionContext.ToViewControllerKey);
            UIView           toView   = toVC.View;

            UIView containerView = transitionContext.ContainerView;

            if (IsPresentation)
            {
                containerView.AddSubview(toView);
            }

            UIViewController animatingVC   = IsPresentation? toVC : fromVC;
            UIView           animatingView = animatingVC.View;

            animatingView.Frame = transitionContext.GetFinalFrameForViewController(animatingVC);

            CGAffineTransform presentedTransform = CGAffineTransform.MakeIdentity();
            CGAffineTransform dismissedTransform = CGAffineTransform.MakeScale(0.001f, 0.001f) * CGAffineTransform.MakeRotation(8 * (float)Math.PI);

            animatingView.Transform = IsPresentation ? dismissedTransform : presentedTransform;

            var opt = UIViewAnimationOptions.AllowUserInteraction | UIViewAnimationOptions.BeginFromCurrentState;
            await UIView.AnimateNotifyAsync(TransitionDuration (transitionContext), 0, 300, 5, opt, () => {
                animatingView.Transform = IsPresentation ? presentedTransform : dismissedTransform;
            });

            animatingView.Transform = CGAffineTransform.MakeIdentity();

            if (!IsPresentation)
            {
                fromView.RemoveFromSuperview();
            }

            transitionContext.CompleteTransition(true);
        }
Beispiel #4
0
        public async Task ReplaceViewControllerAsync(UIViewController newViewController, ITransitionAnimation transition)
        {
            var oldViewController = TopViewController;

            oldViewController?.WillMoveToParentViewController(null);
            AddChildViewController(newViewController);

            transition.WillTransition(this, newViewController);

            View.AddSubview(newViewController.View);
            await UIView.AnimateNotifyAsync(transition.Duration,
                                            0.0f,
                                            transition.SpringDampingRatio,
                                            transition.InitialSprintVelocity,
                                            UIViewAnimationOptions.CurveEaseInOut,
                                            () => transition.Transition(this, oldViewController, newViewController));

            transition.DidTransition(this, oldViewController, newViewController);
            oldViewController?.View.RemoveFromSuperview();

            oldViewController?.RemoveFromParentViewController();
            newViewController.DidMoveToParentViewController(this);
            TopViewController = newViewController;
        }