React实现底部浮动弹出层

BottomSheet组件

import React, { useEffect, useState, memo, type ReactElement } from 'react'
import { CloseOutlined } from '@ant-design/icons'
import style from "./BottomSheet.module.scss"

interface IProps {
    title?: ReactElement,
    children?: ReactElement,
    visible: boolean,
    onClose?: () => void
}

const minHeight = 48

const BottomSheet = (props: IProps) => {
    const [height, setHeight] = useState(minHeight)
    const [dragging, setDragging] = useState(false)

    useEffect(() => {
        if (dragging) {
            document.addEventListener('mousemove', handleMouseMove)
            document.addEventListener('mouseup', handleMouseUp)
        }
        return () => {
            document.removeEventListener('mousemove', handleMouseMove)
            document.removeEventListener('mouseup', handleMouseUp)
        }
    }, [dragging])

    // 拖拽中
    const handleMouseMove = (e: MouseEvent) => {
        const maxHeight = window.innerHeight * 0.8
        const newHeight = window.innerHeight - e.clientY
        const moveHeight = Math.max(minHeight, Math.min(newHeight, maxHeight)) // 取最小高度和最大高度的中间值
        setHeight(moveHeight)
    }

    const handleMouseUp = () => {
        setDragging(false)
    }

    const handleMouseDown = (e: React.MouseEvent) => {
        e.preventDefault()
        setDragging(true)
    }

    const closeSheet = () => {
        props.onClose?.()
    }

    return (
        <div className={style.sheet} style={{ height: props.visible ? height : 0 }}>
            <div className={style.sheet_title} onMouseDown={handleMouseDown}>
                <div className={style.sheet_title_handle} />
                {props.title}
                <CloseOutlined className={style.sheet_title_close} onClick={closeSheet} />
            </div>
            <div className={style.sheet_content}>
                {props.children}
            </div>
        </div>
    )
}
export default memo(BottomSheet)

.sheet {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: #fff;
    border-radius: 16px 16px 0 0;
    box-shadow: 0px 0px 6px 0px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;

    &_title {
        position: relative;
        width: 100%;
        height: 48px;
        min-height: 48px;
        padding: 8px 20px 0 20px;
        border-bottom: 1px solid #DCDFE6;
        cursor: move;

        &_handle {
            width: 41px;
            height: 5px;
            background-color: #DCDFE6;
            border-radius: 4px;
            margin: 0 auto;
        }

        &_close {
            position: absolute;
            top: 50%;
            right: 20px;
            transform: translateY(-50%);
            font-size: 14px;
            color: #303133;
        }
    }

    &_content {
        padding: 20px;
        flex: 1;
        overflow: auto;
    }
}

使用

    <BottomSheet visible={visible} title={<InputTitle />} onClose={() => setVisible(false)}>
         <InputSetup />
    </BottomSheet>