uniapp开发微信小程序弹窗

<template>
	<view>
		<view @click="show=true">
			<view class="typedown">
				<image class="kuai" src="https://images.wanjunshijie.com/mini/buildingMaterialsCloud/home/icon_kuai.png"
					mode=""></image>
				<text>全部</text>
				<image class="down" src="https://images.wanjunshijie.com/mini/buildingMaterialsCloud/home/icon_down.png"
					mode=""></image>
			</view>
		</view>
		<u-popup :show="show" mode="bottom" bgColor="transparent">
			<view class="popupwin">
				<div class="popTitle">
					筛选
				</div>
				<div class="close" @click="getHide">
					<u-icon name="close"></u-icon>
				</div>
				<scroll-view class="searchbody" scroll-y>
					<div class="list">
						<div @click="getselected" :class="{active:selectedAll}" class="listitem">
							<text>全部</text>
							<div v-if="selectedAll" class="icon">
								<image
									src="https://images.wanjunshijie.com/mini/buildingMaterialsCloud/home/icon_selectedcheck.png"
									mode="widthFix">
								</image>
							</div>
						</div>
						<div @click="selected(index)" :class="{active:item.selected}" class="listitem"
							v-for="(item,index) in list" :key="index">
							<text>{{item.name}}</text>
							<div v-if="item.selected" class="icon">
								<image
									src="https://images.wanjunshijie.com/mini/buildingMaterialsCloud/home/icon_selectedcheck.png"
									mode="widthFix">
								</image>
							</div>
						</div>
					</div>
				</scroll-view>
				<div class="operation">
					<div class="reset" @click="reset">重置</div>
					<div class="confirm" @click="confirm">确认</div>
				</div>
			</view>
		</u-popup>
	</view>
</template>
<script>
	export default {
		data() {
			return {
				show: false,
				active: 0,
				list: [],
				selectedAll: true
			}
		},
		props: {
			list2: {
				type: Array,
				default () {
					return []
				}
			}
		},
		watch: {
			list2() {
				this.list = this.list2
			},
		},
		mounted() {},
		methods: {
			// 全选
			getselected() {
				this.selectedAll = !this.selectedAll
				this.getselectedCheck()
			},
			getselectedCheck() {
				var that = this
				var data = that.list
				for (var i = 0; i < data.length; i++) {
					data[i].selected = this.selectedAll
				}
				that.list = data
			},
			reset() {
				var that = this;
				that.getselected()
				that.$emit('getdata', that.list)
				that.getHide()
			},
			confirm() {
				var that = this;
				that.$emit('getdata', that.list)
				that.getHide()
			},
			getHide() {
				this.show = false
			},
			getIsSeletedAll() {
				var data = this.list
				this.selectedAll = false
				var num = 0
				for (var i = 0; i < data.length; i++) {
					if (data[i].selected) {
						num = num + 1
					}
				}
				if (num === this.list.length && this.list.length > 0) {
					this.selectedAll = true
				}
			},
			// 选择
			selected(e) {
				this.list[e].selected = !this.list[e].selected
				// 更新列表
				this.$forceUpdate()
				this.getIsSeletedAll()
			},
		}
	}
</script>

<style scoped lang="scss">
	.popupwin {
		width: 750rpx;
		// height: 750rpx;
		background: #FFFFFF;
		border-radius: 20rpx 20rpx 0px 0px;
		opacity: 1;
		position: relative;
		z-index: 1000;
	}

	.list {
		width: 694rpx;
		margin: 0 auto;
		display: flex;
		justify-content: flex-start;
		align-items: flex-start;
		flex-wrap: wrap;
		flex-direction: row;
		align-content: flex-start;

		.listitem {
			height: 72rpx;
			padding: 0 45rpx;
			display: flex;
			justify-content: center;
			align-items: center;
			flex-wrap: nowrap;
			flex-direction: row;
			align-content: flex-start;
			background: #FFFFFF;
			border-radius: 12rpx;
			border: 2rpx solid rgba(21, 24, 82, 0.1);
			margin-right: 20rpx;
			margin-bottom: 20rpx;
			position: relative;

			text {
				font-size: 28rpx;
				font-family: PingFangSC-Regular, PingFang SC;
				font-weight: 400;
				color: #737497;
			}
		}

		.listitem.active {
			border: 2rpx solid #3F87FF;

			text {
				color: #4087FF;
			}
		}
	}

	.searchbody {
		height: 550rpx;
	}

	.close {
		position: absolute;
		right: 30rpx;
		top: 30rpx;
		z-index: 10;
	}

	.popTitle {
		height: 100rpx;
		display: flex;
		justify-content: flex-start;
		align-items: center;
		flex-wrap: nowrap;
		flex-direction: row;
		font-size: 32rpx;
		color: #000;
		margin-left: 28rpx;
	}

	.typedown {
		width: 171rpx;
		height: 60rpx;
		background: #F5F6FC;
		border-radius: 8rpx;
		display: flex;
		justify-content: center;
		align-items: center;
		flex-wrap: nowrap;
		flex-direction: row;
		align-content: flex-start;

		.kuai {
			width: 24rpx;
			height: 23rpx;
		}

		text {
			font-size: 28rpx;
			font-family: PingFangSC-Medium, PingFang SC;
			font-weight: 500;
			color: #151852;
			margin-left: 9rpx;
			margin-right: 23rpx;
		}

		.down {
			width: 21rpx;
			height: 13rpx;
		}
	}

	.icon {
		display: flex;
		justify-content: center;
		align-items: center;
		flex-wrap: nowrap;
		flex-direction: row;
		align-content: flex-start;
		width: 36rpx;
		position: absolute;
		right: 0;
		bottom: 0;

		image {
			width: 36rpx;
		}
	}

	.operation {
		width: 694rpx;
		display: flex;
		justify-content: space-between;
		align-items: center;
		flex-wrap: nowrap;
		flex-direction: row;
		align-content: flex-start;
		margin: 0 auto;
		padding-bottom: 64rpx;

		.reset {
			width: 333rpx;
			height: 88rpx;
			background: rgba(#4087FF, 0.1);
			border-radius: 20rpx;
			display: flex;
			justify-content: center;
			align-items: center;
			flex-wrap: nowrap;
			flex-direction: row;
			align-content: flex-start;
			font-size: 32rpx;
			font-family: PingFangSC-Medium, PingFang SC;
			font-weight: 500;
			color: #4087FF;
		}

		.confirm {
			width: 333rpx;
			height: 88rpx;
			background: #4087FF;
			border-radius: 20rpx;
			display: flex;
			justify-content: center;
			align-items: center;
			flex-wrap: nowrap;
			flex-direction: row;
			align-content: flex-start;
			font-size: 32rpx;
			font-family: PingFangSC-Medium, PingFang SC;
			font-weight: 500;
			color: #fff;
		}
	}
</style>