import * as React from 'react';
import { Animated, StyleProp, PanResponderGestureState, ViewStyle } from 'react-native';
export interface IOnLayoutEvent {
    nativeEvent: {
        layout: {
            x: number;
            y: number;
            width: number;
            height: number;
        };
    };
}
interface IBaseItemType {
    key: string;
}
export interface IDraggableGridProps<DataType extends IBaseItemType> {
    numColumns: number;
    data: DataType[];
    renderItem: (item: DataType, order: number) => React.ReactElement<any>;
    style?: ViewStyle;
    itemHeight?: number;
    dragStartAnimation?: StyleProp<any>;
    onItemPress?: (item: DataType, position: Animated.AnimatedValueXY) => void;
    onDragStart?: (item: DataType) => void;
    onDragRelease?: (newSortedData: DataType[]) => void;
    onHandMove?: (gestureEvent: PanResponderGestureState) => void;
    dragEnabled?: boolean;
}
export interface IDraggableGridState {
    blockHeight: number;
    blockWidth: number;
    gridHeight: Animated.Value;
    activeItemIndex?: number;
    gridLayout: {
        x: number;
        y: number;
        width: number;
        height: number;
    };
    hadInitBlockSize: boolean;
    dragStartAnimatedValue: Animated.Value;
}
export declare class DraggableGrid<DataType extends IBaseItemType> extends React.Component<IDraggableGridProps<DataType>, IDraggableGridState> {
    private panResponder;
    private panResponderCapture;
    private orderMap;
    private items;
    private blockPositions;
    private activeBlockOffset;
    static defaultProps: {
        dragEnabled: boolean;
    };
    constructor(props: IDraggableGridProps<DataType>);
    private resetGridHeight;
    componentWillReceiveProps(nextProps: IDraggableGridProps<DataType>): void;
    componentDidUpdate(): void;
    private addItem;
    private removeItem;
    componentWillMount(): void;
    render(): JSX.Element;
    private onBlockPress;
    private getBlockStyle;
    private setActiveBlock;
    private getDragStartAnimation;
    private getDefaultDragStartAnimation;
    private startDragStartAnimation;
    private getBlockPositionByOrder;
    private assessGridSize;
    private initBlockPositions;
    private getActiveItem;
    private getDistance;
    private onStartDrag;
    private onHandMove;
    private resetBlockPositionByOrder;
    private moveBlockToBlockOrderPosition;
    private getKeyByOrder;
    private onHandRelease;
}
export {};