@class UICollectionViewLayout, NSString, UICollectionView, UIScrollView, UIAutoRespondingScrollViewControllerKeyboardSupport, UILongPressGestureRecognizer; @protocol _UIKeyboardAutoRespondingScrollView; @interface UICollectionViewController : UIViewController <_UIKeyboardAutoRespondingScrollViewController, UIGestureRecognizerDelegate, UICollectionViewFocusDelegate_Legacy, UIViewControllerPreviewingDelegate, UIViewControllerPreviewingDelegate_Deprecated, UICollectionViewDelegate, UICollectionViewDataSource> { UICollectionViewLayout *_layout; UICollectionView *_collectionView; UILongPressGestureRecognizer *_reorderingGesture; UIAutoRespondingScrollViewControllerKeyboardSupport *_keyboardSupport; struct { unsigned char clearsSelectionOnViewWillAppear : 1; unsigned char useLayoutToLayoutNavigationTransitions : 1; unsigned char installsStandardReorderingGesture : 1; } _collectionViewControllerFlags; } @property (retain, nonatomic) UICollectionView *collectionView; @property (nonatomic) BOOL clearsSelectionOnViewWillAppear; @property (nonatomic) BOOL useLayoutToLayoutNavigationTransitions; @property (readonly, nonatomic) UICollectionViewLayout *collectionViewLayout; @property (nonatomic) BOOL installsStandardGestureForInteractiveMovement; @property (readonly, retain, nonatomic, getter=_scrollView) UIScrollView<_UIKeyboardAutoRespondingScrollView> *scrollView; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)viewWillAppear:(BOOL)a0; - (void)dealloc; - (id)delegate; - (void)encodeWithCoder:(id)a0; - (void)setEditing:(BOOL)a0 animated:(BOOL)a1; - (id)preferredFocusedView; - (void)willPresentPreviewViewController:(id)a0 forLocation:(struct CGPoint { double x0; double x1; })a1 inSourceView:(id)a2; - (void)loadView; - (void)previewingContext:(id)a0 commitViewController:(id)a1; - (id)initWithNibName:(id)a0 bundle:(id)a1; - (void)viewWillDisappear:(BOOL)a0; - (id)previewingContext:(id)a0 viewControllerForLocation:(struct CGPoint { double x0; double x1; })a1; - (void).cxx_destruct; - (void)viewDidAppear:(BOOL)a0; - (long long)collectionView:(id)a0 numberOfItemsInSection:(long long)a1; - (id)initWithCollectionViewLayout:(id)a0; - (void)setView:(id)a0; - (BOOL)gestureRecognizer:(id)a0 shouldRequireFailureOfGestureRecognizer:(id)a1; - (id)collectionView:(id)a0 cellForItemAtIndexPath:(id)a1; - (id)initWithCoder:(id)a0; - (id)dataSource; - (void)collectionView:(id)a0 didBeginMultipleSelectionInteractionAtIndexPath:(id)a1; - (void)__viewDidAppear:(BOOL)a0; - (void)__viewWillAppear:(BOOL)a0; - (id)_animatorForOperation:(long long)a0 fromViewController:(id)a1 toViewController:(id)a2; - (void)_clearSharedView; - (void)_handleReorderingGesture:(id)a0; - (void)_installReorderingGestureIfNecessary; - (id)_newCollectionViewWithFrame:(struct CGRect { struct CGPoint { double x0; double x1; } x0; struct CGSize { double x0; double x1; } x1; })a0 collectionViewLayout:(id)a1; - (void)_setNeedsUpdateContentUnavailableConfiguration; - (void)_setSharedCollectionView:(id)a0; - (void)_setUseLayoutToLayoutNavigationTransitions:(BOOL)a0 withCheck:(BOOL)a1; - (id)_shim_contentScrollView; - (BOOL)_shouldRespondToPreviewingMethods; - (id)_uiCollectionView; - (void)_updateCollectionViewLayoutAndDelegate:(id)a0; - (id)_wrappingView; - (id)contentScrollViewForEdge:(unsigned long long)a0; - (id)previewViewControllerForItemAtIndexPath:(id)a0; - (id)previewViewControllerForLocation:(struct CGPoint { double x0; double x1; })a0 inSourceView:(id)a1; - (BOOL)shouldCrossFadeBottomBars; - (BOOL)shouldCrossFadeNavigationBar; - (void)viewWillUnload; - (void)willPresentPreviewViewController:(id)a0 forItemAtIndexPath:(id)a1; - (void)willPresentPreviewViewController:(id)a0 forPosition:(struct CGPoint { double x0; double x1; })a1 inSourceView:(id)a2; @end