public SwipeUpScrollViewDelegate(SlidingContentViewController swipeUpScrollViewController, UIScrollView scrollView,
HitTestView hitTestView)
{
_slidingContentScrollViewController = swipeUpScrollViewController;
_scrollView = scrollView;
_scrollView.ShowsVerticalScrollIndicator = false;
_scrollView.ShowsHorizontalScrollIndicator = false;
_scrollView.ClipsToBounds = false;
_scrollView.AlwaysBounceVertical = true;
_scrollView.DirectionalLockEnabled = true;
_hitTestView = hitTestView;
_scrollView.Scrolled += (sender, e) => Scrolled();
_scrollView.DecelerationEnded += (sender, e) => DecelerationEnded();
var tapGestureRecogniser = new UITapGestureRecognizer();
tapGestureRecogniser.AddTarget(ScrollViewTapped);
_scrollView.AddGestureRecognizer(tapGestureRecogniser);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
AutomaticallyAdjustsScrollViewInsets = false;
EdgesForExtendedLayout = UIRectEdge.None;
SwipeUpScrollView = new UIScrollView();
SwipeUpScrollView.TranslatesAutoresizingMaskIntoConstraints = false;
AutomaticallyAdjustsScrollViewInsets = false;
NSLayoutConstraint bottomConstraint;
if (UIDevice.CurrentDevice.CheckSystemVersion(11, 0))
{
bottomConstraint = NSLayoutConstraint.Create(SwipeUpScrollView, NSLayoutAttribute.Bottom, NSLayoutRelation.Equal, View.SafeAreaLayoutGuide, NSLayoutAttribute.Bottom, 1, 0);
}
else
{
bottomConstraint = NSLayoutConstraint.Create(SwipeUpScrollView, NSLayoutAttribute.Bottom, NSLayoutRelation.Equal, View, NSLayoutAttribute.Bottom, 1, 0);
}
var constraints = new NSLayoutConstraint[]
{
NSLayoutConstraint.Create(SwipeUpScrollView, NSLayoutAttribute.Top, NSLayoutRelation.Equal, View, NSLayoutAttribute.Top, 1, 0),
NSLayoutConstraint.Create(SwipeUpScrollView, NSLayoutAttribute.Leading, NSLayoutRelation.Equal, View, NSLayoutAttribute.Leading, 1, 0),
NSLayoutConstraint.Create(SwipeUpScrollView, NSLayoutAttribute.Trailing, NSLayoutRelation.Equal, View, NSLayoutAttribute.Trailing, 1, 0),
bottomConstraint
};
View.AddSubview(SwipeUpScrollView);
View.AddConstraints(constraints);
_hitTestView = new HitTestView();
_hitTestView.TranslatesAutoresizingMaskIntoConstraints = false;
_hitTestBottomLayoutConstraint = NSLayoutConstraint.Create(_hitTestView, NSLayoutAttribute.Bottom, NSLayoutRelation.Equal, View, NSLayoutAttribute.Bottom, 1, 0);
var hitTestViewConstraints = new NSLayoutConstraint[]
{
_hitTestBottomLayoutConstraint,
NSLayoutConstraint.Create(_hitTestView, NSLayoutAttribute.Leading, NSLayoutRelation.Equal, View, NSLayoutAttribute.Leading, 1, 0),
NSLayoutConstraint.Create(_hitTestView, NSLayoutAttribute.Trailing, NSLayoutRelation.Equal, View, NSLayoutAttribute.Trailing, 1, 0),
NSLayoutConstraint.Create(_hitTestView, NSLayoutAttribute.Top, NSLayoutRelation.Equal, View, NSLayoutAttribute.Top, 1, 0)
};
View.AddSubview(_hitTestView);
View.AddConstraints(hitTestViewConstraints);
SwipeUpScrollViewDelegate = new SwipeUpScrollViewDelegate(this, SwipeUpScrollView, _hitTestView);
_hitTestView.SwipeUpScrollView = SwipeUpScrollView;
//Initialise fields in delegate now that the view has loaded
UpdateTapToRaise();
UpdateSwipeUpView();
UpdateSwipeUpScrollViewHeight();
UpdateScaling();
}
