import { ChangedData, Property, TouchGestureEventData, View, ViewBase } from '@nativescript/core';
import { Pointer } from '@nativescript/core/ui/gestures';
import { CollectionViewBase } from './common';
export * from './common';
export declare enum ContentInsetAdjustmentBehavior {
    Always = 3,
    Automatic = 0,
    Never = 2,
    ScrollableAxes = 1
}
export declare const contentInsetAdjustmentBehaviorProperty: Property<CollectionView, ContentInsetAdjustmentBehavior>;
export declare const estimatedItemSizeProperty: Property<CollectionView, boolean>;
export declare const autoSizeProperty: Property<CollectionView, boolean>;
export declare enum SnapPosition {
    START = -1,// = androidx.recyclerview.widget.LinearSmoothScroller.SNAP_TO_START,
    END = 1
}
export declare class CollectionView extends CollectionViewBase {
    _layout: UICollectionViewLayout;
    _dataSource: CollectionViewDataSource;
    _delegate: UICollectionViewDelegateImpl | UICollectionViewDelegateFixedSizeImpl;
    private _preparingCell;
    private _map;
    _measureCellMap: Map<string, {
        cell: CollectionViewCell;
        view: View;
    }>;
    _lastLayoutKey: string;
    autoSize: boolean;
    reorderLongPressGesture: UILongPressGestureRecognizer;
    reorderLongPressHandler: ReorderLongPressImpl;
    reorderStartingRow: number;
    reorderEndingRow: number;
    manualDragging: boolean;
    scrollEnabledBeforeDragging: boolean;
    estimatedItemSize: boolean;
    draggingStartDelta: [number, number];
    nativeViewProtected: UICollectionView;
    constructor();
    createNativeView(): UICollectionViewImpl;
    onTemplateAdded(t: any): void;
    initNativeView(): void;
    disposeNativeView(): void;
    get _childrenCount(): number;
    onLoaded(): void;
    eachChild(callback: (child: ViewBase) => boolean): void;
    eachChildAsync(callback: any): Promise<void>;
    getViewForItemAtIndex(index: number): View;
    startDragging(index: number, pointer?: Pointer): void;
    onReorderingTouch(event: TouchGestureEventData): void;
    handleReorderEnd(): void;
    onReorderLongPress(gesture: UILongPressGestureRecognizer): void;
    protected updateScrollBarVisibility(value: any): void;
    eachChildView(callback: (child: View) => boolean): void;
    onLayout(left: number, top: number, right: number, bottom: number): void;
    updateRowColSize(): void;
    _onRowHeightPropertyChanged(oldValue: any, newValue: any): void;
    _onColWidthPropertyChanged(oldValue: any, newValue: any): void;
    isHorizontal(): boolean;
    clearCachedSize(...indexes: number[]): void;
    layoutAttributesForElementsInRect(attributesArray: NSArray<UICollectionViewLayoutAttributes>, rect: CGRect): void;
    onSourceCollectionChanged(event: ChangedData<any>): void;
    onItemTemplatesChanged(oldValue: any, newValue: any): void;
    private unbindUnusedCells;
    refreshVisibleItems(): void;
    isItemAtIndexVisible(itemIndex: number): boolean;
    findFirstVisibleItemIndex(): number;
    findLastVisibleItemIndex(): number;
    private getRowIndexPath;
    refresh(): void;
    get scrollOffset(): number;
    get verticalOffsetX(): number;
    get verticalOffsetY(): number;
    scrollToIndex(index: number, animated?: boolean, snap?: SnapPosition): void;
    scrollToOffset(value: any, animated: any): void;
    requestLayout(): void;
    _setNativeClipToBounds(): void;
    notifyForItemAtIndex(eventName: string, view: View, index: number, bindingContext?: any, native?: any): any;
    _getItemTemplateType(indexPath: any): string;
    getItemTemplateContent(index: any, templateType: any): any;
    _prepareCell(cell: CollectionViewCell, indexPath: NSIndexPath, templateType: string, notForCellSizeComp?: boolean): [number, number];
    getCellSize(index: number): any;
    private measureCell;
    layoutCell(index: number, cell: CollectionViewCell, cellView: View): any;
    private clearRealizedCells;
    private _clearCellViews;
    private _removeContainer;
    private _setPadding;
    numberOfSectionsInCollectionView(collectionView: UICollectionView): 0 | 1;
    collectionViewNumberOfItemsInSection(collectionView: UICollectionView, section: number): number;
    collectionViewCellForItemAtIndexPath(collectionView: UICollectionView, indexPath: NSIndexPath): UICollectionViewCell;
    collectionViewWillDisplayCellForItemAtIndexPath(collectionView: UICollectionView, cell: UICollectionViewCell, indexPath: NSIndexPath): void;
    collectionViewDidSelectItemAtIndexPath(collectionView: UICollectionView, indexPath: NSIndexPath): NSIndexPath;
    collectionViewDidHighlightItemAtIndexPath(collectionView: UICollectionView, indexPath: NSIndexPath): void;
    collectionViewDidUnhighlightItemAtIndexPath(collectionView: UICollectionView, indexPath: NSIndexPath): void;
    collectionViewLayoutSizeForItemAtIndexPath(collectionView: UICollectionView, collectionViewLayout: UICollectionViewLayout, indexPath: NSIndexPath): CGSize;
    private computeScrollEventData;
    lastContentOffset: CGPoint;
    needsScrollStartEvent: boolean;
    isScrolling: boolean;
    scrollViewWillBeginDragging(scrollView: UIScrollView): void;
    scrollViewDidScroll(scrollView: UIScrollView): void;
    stopScrolling(scrollView: UIScrollView): void;
    scrollViewDidEndDecelerating(scrollView: UIScrollView): void;
    scrollViewWillEndDraggingWithVelocityTargetContentOffset?(scrollView: UIScrollView, velocity: CGPoint, targetContentOffset: interop.Pointer | interop.Reference<CGPoint>): void;
    scrollViewDidEndDraggingWillDecelerate(scrollView: UIScrollView, decelerate: boolean): void;
    scrollViewDidEndScrollingAnimation(scrollView: UIScrollView): void;
}
interface ViewItemIndex {
}
type ItemView = View & ViewItemIndex;
declare class CollectionViewCell extends UICollectionViewCell {
    owner: WeakRef<ItemView>;
    currentIndex: number;
    get view(): ItemView;
    systemLayoutSizeFittingSizeWithHorizontalFittingPriorityVerticalFittingPriority(targetSize: CGSize, horizontalFittingPriority: number, verticalFittingPriority: number): CGSize;
}
declare class UICollectionViewImpl extends UICollectionView {
    _owner: WeakRef<CollectionView>;
    sizeThatFits(size: CGSize): CGSize;
    static initWithOwner(owner: CollectionView, layout: any): UICollectionViewImpl;
}
declare class CollectionViewDataSource extends NSObject implements UICollectionViewDataSource {
    _owner: WeakRef<CollectionView>;
    static ObjCProtocols: {
        prototype: UICollectionViewDataSource;
    }[];
    static initWithOwner(owner: CollectionView): CollectionViewDataSource;
    numberOfSectionsInCollectionView(collectionView: UICollectionView): 0 | 1;
    collectionViewNumberOfItemsInSection(collectionView: UICollectionView, section: number): number;
    collectionViewCellForItemAtIndexPath(collectionView: UICollectionView, indexPath: NSIndexPath): UICollectionViewCell;
    collectionViewMoveItemAtIndexPathToIndexPath(collectionView: UICollectionView, sourceIndexPath: NSIndexPath, destinationIndexPath: NSIndexPath): void;
    collectionViewTargetIndexPathForMoveFromItemAtIndexPathToProposedIndexPath?(collectionView: UICollectionView, originalIndexPath: NSIndexPath, proposedIndexPath: NSIndexPath): NSIndexPath;
    collectionViewCanMoveItemAtIndexPath(collectionView: UICollectionView, indexPath: NSIndexPath): boolean;
}
declare class UICollectionViewDelegateImpl extends UICollectionViewCacheDelegateFlowLayout implements UICollectionViewDelegate {
    _owner: WeakRef<CollectionView>;
    static ObjCProtocols: {
        prototype: UICollectionViewDelegate;
    }[];
    static initWithOwner(owner: CollectionView): UICollectionViewDelegateImpl;
    collectionViewWillDisplayCellForItemAtIndexPath(collectionView: UICollectionView, cell: UICollectionViewCell, indexPath: NSIndexPath): void;
    collectionViewDidSelectItemAtIndexPath(collectionView: UICollectionView, indexPath: NSIndexPath): NSIndexPath;
    collectionViewLayoutComputedSizeForItemAtIndexPath(collectionView: UICollectionView, collectionViewLayout: UICollectionViewLayout, indexPath: NSIndexPath): CGSize;
    scrollViewDidScroll(scrollView: UIScrollView): void;
    scrollViewWillBeginDragging(scrollView: UIScrollView): void;
    scrollViewDidEndDecelerating(scrollView: UIScrollView): void;
    scrollViewWillEndDraggingWithVelocityTargetContentOffset?(scrollView: UIScrollView, velocity: CGPoint, targetContentOffset: interop.Pointer | interop.Reference<CGPoint>): void;
    scrollViewDidEndDraggingWillDecelerate(scrollView: UIScrollView, decelerate: boolean): void;
    scrollViewDidEndScrollingAnimation(scrollView: UIScrollView): void;
    collectionViewTargetIndexPathForMoveFromItemAtIndexPathToProposedIndexPath(collectionView: UICollectionView, currentIndexPath: NSIndexPath, proposedIndexPath: NSIndexPath): NSIndexPath;
}
declare class UICollectionViewDelegateFixedSizeImpl extends NSObject implements UICollectionViewDelegate, UICollectionViewDelegateFlowLayout {
    _owner: WeakRef<CollectionView>;
    static ObjCProtocols: {
        prototype: UICollectionViewDelegate;
    }[];
    static initWithOwner(owner: CollectionView): UICollectionViewDelegateFixedSizeImpl;
    collectionViewWillDisplayCellForItemAtIndexPath(collectionView: UICollectionView, cell: UICollectionViewCell, indexPath: NSIndexPath): void;
    collectionViewDidSelectItemAtIndexPath(collectionView: UICollectionView, indexPath: NSIndexPath): NSIndexPath;
    scrollViewDidScroll(scrollView: UIScrollView): void;
    scrollViewWillBeginDragging(scrollView: UIScrollView): void;
    scrollViewDidEndDecelerating(scrollView: UIScrollView): void;
    scrollViewWillEndDraggingWithVelocityTargetContentOffset?(scrollView: UIScrollView, velocity: CGPoint, targetContentOffset: interop.Pointer | interop.Reference<CGPoint>): void;
    scrollViewDidEndDraggingWillDecelerate(scrollView: UIScrollView, decelerate: boolean): void;
    scrollViewDidEndScrollingAnimation(scrollView: UIScrollView): void;
    collectionViewTargetIndexPathForMoveFromItemAtIndexPathToProposedIndexPath(collectionView: UICollectionView, currentIndexPath: NSIndexPath, proposedIndexPath: NSIndexPath): NSIndexPath;
}
declare class ReorderLongPressImpl extends NSObject {
    private _owner;
    static initWithOwner(owner: WeakRef<CollectionView>): ReorderLongPressImpl;
    longPress(recognizer: UILongPressGestureRecognizer): void;
    static ObjCExposedMethods: {
        longPress: {
            returns: interop.Type<void>;
            params: interop.Type<any>[];
        };
    };
}