绿满眶商城微信小程序-uniapp
zxl
4 天以前 c9928dd4f6d25e2339ea1400f59ec58674a927a7
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<template>
    <view class="wrapper">
        
        
        <view style="height: 100rpx"></view>
        <!-- 内容区域 -->
        <scroll-view scroll-y class="content" style="height: 40vh;" @scrolltolower="loadMore" :lower-threshold="100">
            <view class="waterfall">
                <view class="column" v-for="(column, index) in columns" :key="index">
                    <!-- 遍历每列内容 -->
                    <view class="item" v-for="(item, idx) in column" :key="item.id" @click="handleItemClick(item)">
                        <!-- 图片类型 -->
                        <image v-if="item.type === 'image'" :src="item.url" mode="widthFix" class="media" @load="imageLoad"  :data-item="item"
                            :style="{ height: item.height + 'px' }" />
 
                        <!-- 视频类型 -->
                        <video v-if="item.type === 'video'" :src="item.url" class="media" controls :poster="item.poster"  :data-item="item"
                            @play="handleVideoPlay" :style="{ height: item.height + 'px' }"></video>
 
                        <!-- 文字类型 -->
                        <view v-if="item.type === 'text'" class="text-content">
                            <text class="title">{{ item.cover }}</text>
                        </view>
                        <text class="title">{{ item.title }}</text>
 
                    </view>
                </view>
            </view>
            <!--     <view style="height: 150rpx;"></view> -->
            <!-- 改进的加载更多提示 -->
            <view class="load-more">
                <u-loadmore v-if="mockData.length > 0" :status="loading ? 'loading' : noMore ? 'nomore' : 'loadmore'"
                    :load-text="{
                        loadmore: '上拉加载更多',
                        loading: '正在加载',
                        nomore: '没有更多了'
                      }" />
            </view>
            <view style="height:150rpx">
 
            </view>
        </scroll-view>
 
 
 
    </view>
</template>
 
<script>
    import {
        changeCollect
    } from '@/api/collect.js'
    import {
        getFilePreviewUrl
    } from '@/api/common.js'
    import '@/components/uview-components/uview-ui';
    import {
        getActivityReportList,
    } from '@/api/activity.js';
    export default {
        data() {
            return {
                columns: [
                    [],
                    []
                ], // 双列布局
                mockData: [],
                colHeight: [0, 0], // 记录各列高度
                baseImageHeight: 300, // 图片基础高度
                baseVideoHeight: 350, // 视频基础高度
                baseTextHeight: 120, // 文字基础高度
                query: {
                    pageNumber: 1,
                    pageSize: 10,
                },
                loading: false, // 是否正在加载
                noMore: false, // 是否没有更多数据
                total: 0 // 总数据量
            };
        },
        onLoad() {
            this.getActivityList();
        },
        methods: {
            /**
             * 下拉刷新时
             */
            onPullDownRefresh() {
                this.query.pageNumber = 1; // 重置页码
                this.noMore = false;
                this.mockData = []; // 清空数据
                this.getActivityList();
            },
            loadMore() {
 
                // 显示加载状态
                this.loading = true;
 
                // 延迟执行让UI有反应时间
                setTimeout(() => {
                    this.query.pageNumber += 1;
                    this.getActivityList();
                }, 300);
            },
            async getActivityList() {
 
                try {
 
                    const res = await getActivityReportList(this.query);
                    this.loading = false;
                    if (res.statusCode === 200) {
                        const newData = res.data.data.map(value => ({
                            id: value.id,
                            type: value.coverType,
                            cover: value.cover,
                            height: value.coverType === 'image' ? this.baseImageHeight : value.coverType ===
                                'video' ? this.baseVideoHeight : this.baseTextHeight,
                            title: value.activityName,
                            content: value.activityContent,
                            poster: '',
                            url: value.url
                        }));
 
                        // 更新总数据量
                        this.total = res.data.total || 0;
 
                        // 追加或替换数据
                        this.mockData = this.query.pageNumber === 1 ?
                            newData :
                            [...this.mockData, ...newData];
 
                        // 判断是否还有更多数据
                        this.noMore = newData.length < this.query.pageSize ||
                            this.mockData.length >= this.total;
 
                        // 布局更新
                        this.$nextTick(() => {
                            this.layoutItems();
                        });
                    }
                } catch (error) {
                    console.error('加载失败:', error);
                    // 失败时回退页码
                    if (this.query.pageNumber > 1) {
                        this.query.pageNumber -= 1;
                    }
                } finally {
                    this.loading = false;
                    uni.hideLoading();
                    uni.stopPullDownRefresh();
                }
            },
            // 图片加载完成回调
            layoutItems() {
                this.columns = [
                    [],
                    []
                ];
                this.colHeight = [0, 0];
 
                this.mockData.forEach(item => {
                    const minIndex = this.colHeight.indexOf(Math.min(...this.colHeight));
                    this.columns[minIndex].push(item); //获得高度更小的 放入元素
                    this.colHeight[minIndex] += item.height + 40; // 40为间距
                });
            },
            // 图片加载回调
            imageLoad(e) {
                const {
                    height,
                    width
                } = e.detail;
                const ratio = height / width;
                const item = e.currentTarget.dataset.item;
 
                 if (!item) {
                        console.error('无法获取图片项数据', e);
                        return;
                    }
                // 重新计算实际显示高度
                const viewWidth = uni.upx2px(345); // 将rpx转换为px
                const viewHeight = viewWidth * ratio;
 
                // 更新item高度
                item.height = viewHeight;
 
                // 重新计算列高度
                this.recalculateColumns();
            },
            // 重新计算列高度
            recalculateColumns() {
                this.colHeight = [0, 0];
                this.columns.forEach((column, colIndex) => {
                    column.forEach(item => {
                        this.colHeight[colIndex] += item.height + 40; // 40为间距
                    });
                });
            },
            handleItemClick(item) {
                console.log(item)
                uni.navigateTo({
                    url: `/pages/mine/activity/detail?id=${item.id}` // 参数通过 URL 传递
                });
            }
        }
    }
</script>
 
<style lang="scss">
    /* 新增加载更多样式 */
    .load-more {
        padding: 20rpx 0;
        text-align: center;
        color: #999;
        font-size: 26rpx;
        background-color: #f7f8fa;
    }
 
    .btn-container {
        display: flex;
        justify-content: center;
        align-items: center;
        margin-top: 8px;
        /* 与上方标题保持间距 */
    }
 
    /* 全局样式优化 */
    .wrapper {
        height: 100vh;
        display: flex;
        flex-direction: column;
        background-color: #f7f8fa;
    }
 
    /* 导航栏优化 */
    .u-navbar {
        box-shadow: 0 2rpx 10rpx rgba(0, 0, 0, 0.05);
    }
 
    /* 内容区域优化 */
    .content {
        flex: 1;
        overflow: hidden;
        padding: 0 20rpx;
        box-sizing: border-box;
        /* 确保可以滚动 */
        -webkit-overflow-scrolling: touch;
    }
 
    /* 瀑布流布局优化 */
    .waterfall {
        display: flex;
        padding: 20rpx 0;
        gap: 20rpx;
    }
 
    .column {
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 20rpx;
    }
 
    /* 卡片项优化 */
    .item {
        background: #fff;
        border-radius: 16rpx;
        overflow: hidden;
        box-shadow: 0 4rpx 16rpx rgba(0, 0, 0, 0.08);
        transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
 
        &:active {
            transform: scale(0.98);
            box-shadow: 0 2rpx 8rpx rgba(0, 0, 0, 0.12);
        }
    }
 
    /* 媒体内容样式 */
    .media {
        width: 100%;
        display: block;
        border-radius: 16rpx 16rpx 0 0;
        background-color: #f5f5f5;
 
        &[mode="widthFix"] {
            height: auto;
        }
    }
 
    /* 视频特殊样式 */
    video.media {
        object-fit: cover;
    }
 
    /* 文字内容样式 */
    .text-content {
        padding: 24rpx;
        background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
        min-height: 160rpx;
        display: flex;
        align-items: center;
        justify-content: center;
 
        .title {
            color: #fff;
            font-size: 32rpx;
            font-weight: 500;
            line-height: 1.4;
            text-align: center;
            display: -webkit-box;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 3;
            overflow: hidden;
        }
    }
 
    /* 标题样式优化 */
    .title {
        padding: 20rpx 24rpx;
        font-size: 28rpx;
        color: #333;
        line-height: 1.5;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        overflow: hidden;
        font-weight: 500;
 
        &:not(.text-content .title) {
            border-top: 1rpx solid #f0f0f0;
        }
    }
 
    /* 加载动画 */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(20rpx);
        }
 
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
 
    .item {
        animation: fadeInUp 0.4s ease forwards;
        opacity: 0;
 
        @for $i from 1 through 10 {
            &:nth-child(#{$i}) {
                animation-delay: $i * 0.05s;
            }
        }
    }
 
    /* 空状态样式 */
    .empty-state {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        height: 60vh;
        text-align: center;
 
        image {
            width: 240rpx;
            opacity: 0.6;
            margin-bottom: 30rpx;
        }
 
        text {
            color: #c0c4cc;
            font-size: 28rpx;
        }
    }
</style>