heshanApp/pages/expert/collectionManage.vue

<template>
	<view class="wrap">
		<!-- 可移动区域：高度随数据多少自动撑开 -->
		<mescroll-body ref="mescrollRef" @init="mescrollInit" @down="downCallback" @up="upCallback" :down="downOption"
			:up="upOption">
			<view v-if="list.length>0">
				<movable-area class="movable-area" :style="{ height: areaHeight + 'px' }">
					<movable-view v-for="(item, index) in list" :key="item.id" class="movable-row"
						:style="{ height: rowHeight + 'px' }" direction="vertical" :y="item.y" :disabled="!canMove"
						@longpress="handleLongPress(index)" @change="onChange" @touchend="handleTouchEnd">
						<!-- 左侧勾选（可选） -->
						<view class="choose" @tap.stop="toggleCheck(item)">
							<image v-if="item.checked" src="@/static/image/hall/choose_icon.png" />
							<image v-else src="@/static/image/hall/choose_moren_icon.png" />
						</view>

						<!-- 主内容 -->
						<image class="pic" :src="item.cover || item.thumbnail" mode="aspectFill" />
						<view class="title textTwo">{{ item.title }}</view>

						<!-- 右侧拖拽把手 -->
						<view v-if="type == 'edit'" class="handle" @longpress.stop="handleLongPress(index)">
							<u-icon name="list" color="#999" size="24" />
						</view>
					</movable-view>
				</movable-area>
			</view>
		</mescroll-body>
		<!-- 底部操作栏 -->
		<view class="footer">
			<view>已选择 {{ checkedCount }} 个视频</view>
			<view class="addbtn" @tap="handleSubmit">
				{{ type === "add" ? "加入合集" : "移除合集" }}
			</view>
		</view>
	</view>
</template>

<script>
	import {
		videoAdd,
		removeVideo,
		updateVideo,
		videoCollectionMyList,
		videoCollectionList,
		getVideoList,
		collectionList,
		updateSort,
		getMyVideoList
	} from "@/api/expert.js"
	const ROW = 120; // 每行高度 rpx → px 转换后
	export default {
		data() {
			return {
				type: "add",
				isOperate: true, // 是否进入编辑模式
				list: [], // 数据
				rowHeight: 0, // 每行 px 高度
				areaHeight: 0, // 区域 px 高度
				canMove: false, // 是否正在拖拽
				dragIndex: -1, // 当前拖拽项下标
				mescroll: null,
				downOption: { //下拉刷新
					use: true,
					auto: false // 不自动加载 (mixin已处理第一个tab触发downCallback)
				},
				upOption: {
					onScroll: false,
					use: true, // 是否启用上拉加载; 默认true
					page: {
						pae: 0, // 当前页码,默认0,回调之前会加1,即callback(page)会从1开始
						size: 10 // 每页数据的数量,默认10
					},
					noMoreSize: 5, // 配置列表的总数量要大于等于5条才显示'-- END --'的提示
					textNoMore: "已经到底了",
					empty: {
						icon: 'https://cos.his.cdwjyyh.com/fs/20240423/cf4a86b913a04341bb44e34bb4d37aa2.png',
						tip: '暂无数据'
					}
				},
			};
		},
		computed: {
			checkedCount() {
				return this.list.filter((i) => i.checked).length;
			},
		},
		onLoad(opt) {
			this.type = opt.type || "add";
			// this.getList()
			const sys = uni.getSystemInfoSync();
			this.rowHeight = (ROW * sys.windowWidth) / 750;
			// 模拟 8 条数据
			// const raw = Array.from({
			// 	length: 8
			// }, (_, i) => ({
			// 	id: i,
			// 	title: "西藏旅游" + i,
			// 	checked: false,
			// }));
			// this.initData(raw);
		},
		methods: {
			mescrollInit(mescroll) {
				this.mescroll = mescroll;
			},
			downCallback(mescroll) {
				mescroll.resetUpScroll()
			},
			async upCallback(page) {
				let that = this;
				let res = ''
				if (this.type == 'edit') {
					let params = {
						status: 1,
						collectionId: uni.getStorageSync('collectionData').collectionId || '',
						pageNum: page.num,
						pageSize: page.size
					}
					res = await collectionList(params)

				} else {
					let params = {
						status: 1,
						collectionId: uni.getStorageSync('collectionData').collectionId || '',
						talentId: uni.getStorageSync('expertInfo').talentId,
						pageNum: page.num,
						pageSize: page.size
					}
					res = await getMyVideoList(params)
					// res = await getVideoList(params)
				}
				if (res.code == 200) {
					let data = res.data.list.map((item, index) => ({
						...item,
						checked: false,
						sort: index + 1,
						y: index * this.rowHeight,
					}));
					if (page.num == 1) that.list = []
					that.list = that.list.concat(data);
					that.mescroll.endBySize(data.length, res.data.total);
					this.areaHeight = data.length * this.rowHeight;
				}
			},
			async getList() {
				let res = ''
				if (this.type == 'edit') {
					let params = {
						status: 1,
						collectionId: uni.getStorageSync('collectionData').collectionId || ''
					}
					res = await collectionList(params)

				} else {
					let params = {
						status: 1,
						collectionId: uni.getStorageSync('collectionData').collectionId || '',
						talentId: uni.getStorageSync('expertInfo').talentId,
					}
					res = await getMyVideoList(params)
					// res = await getVideoList(params)
				}
				if (res.code == 200) {
					this.list = res.data.list.map((item, index) => ({
						...item,
						checked: false,
						sort: index + 1,
						y: index * this.rowHeight,
					}));
					this.areaHeight = this.list.length * this.rowHeight;
				}
			},
			// 初始化坐标
			initData(src) {
				const sys = uni.getSystemInfoSync();
				// rpx → px
				this.rowHeight = (ROW * sys.windowWidth) / 750;
			},
			// 长按把手启动拖拽
			handleLongPress(index) {
				this.canMove = true;
				this.dragIndex = index;
			},
			// 拖拽过程中 movable-view 会不断触发 change
			onChange(e) {
				if (!this.canMove || e.detail.source !== "touch") return;
				const curY = e.detail.y;
				let targetIdx = Math.round(curY / this.rowHeight);
				targetIdx = Math.max(0, Math.min(targetIdx, this.list.length - 1));
				if (targetIdx !== this.dragIndex) {
					this.swapData(this.dragIndex, targetIdx);
					this.dragIndex = targetIdx;
				}
			},
			// 交换数据并重置 y
			async swapData(from, to) {
				const arr = [...this.list];
				const tmp = arr.splice(from, 1)[0];
				arr.splice(to, 0, tmp);
				let updateData = arr.map((item, idx) => ({
					...item,
					sort: idx + 1,
					y: idx * this.rowHeight
				}));
				let params = updateData.map(({
					id,
					sort
				}) => ({
					id,
					sort
				}));
				const res = await updateSort(params)
				// this.list =
				if (res.code == 200) {
					this.getList()
				}
			},
			// 松手
			handleTouchEnd() {
				this.canMove = false;
				this.dragIndex = -1;
			},
			toggleCheck(item) {
				item.checked = !item.checked;
			},
			async handleSubmit() {
				if (this.type === "add") {
					let params = []
					this.list.forEach((item, idx) => {
						if (item.checked) {
							params.push({
								collectionId: 7,
								videoId: item.id * 1
							})
						}
					});
					const res = await videoAdd(params)
					// const res = await updateVideo(params)
					if (res.code == 200) {
						uni.showToast({
							title: '加入成功！',
						})
						setTimeout(() => {
							uni.navigateBack()
						}, 1000)
					}
				}
				if (this.type === "edit") {
					uni.showModal({
						title: "移除合集",
						content: "合集内的视频移除后，视频会继续保留在个人页",
						confirmText: "移除",
						confirmColor: "#FF5030",
						success: async (result) => {
							let params = this.list.filter(item => item.checked).map(item => item.id);
							const res = await removeVideo(params)
							if (res.code == 200) {
								uni.showToast({
									title: '移除成功！',
								})
								setTimeout(() => {
									uni.navigateBack()
								}, 1000)
							}
						}
					});
				}
			},
		},
	};
</script>

<style lang="scss" scoped>
	.wrap {
		padding-bottom: 140rpx; // 给底部栏留空
	}

	.movable-area {
		width: 100%;
	}

	.movable-row {
		width: 100%;
		display: flex;
		align-items: center;
		padding: 28rpx;
		box-sizing: border-box;
		background: #fff;
		border-bottom: 1rpx solid #eee;
	}

	.choose {
		margin-right: 20rpx;

		image {
			width: 36rpx;
			height: 36rpx;
		}
	}

	.pic {
		width: 100rpx;
		height: 100rpx;
		border-radius: 10rpx;
		flex-shrink: 0;
	}

	.title {
		flex: 1;
		padding: 0 20rpx;
		font-size: 30rpx;
		color: #333;
	}

	.handle {
		padding: 20rpx;
	}

	.footer {
		position: fixed;
		left: 0;
		bottom: 0;
		width: 100%;
		display: flex;
		align-items: center;
		justify-content: space-between;
		padding: 24rpx 40rpx;
		box-sizing: border-box;
		background: #fff;
		border-top: 1rpx solid #eee;
		font-size: 28rpx;
		color: #999;

		.addbtn {
			padding: 20rpx 40rpx;
			background: #FF5030;
			color: #fff;
			border-radius: 50rpx;
		}
	}
</style>