313 lines
8.1 KiB
Plaintext
313 lines
8.1 KiB
Plaintext
<template>
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<view class="fui-top__tabs">
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<view>
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<fui-tabs :tabs="tabs" :scroll="true" alignLeft :current="tabIndex" @change="change"></fui-tabs>
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</view>
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<swiper :current="tabIndex" class="fui-swiper__box" :duration="300" @change="tabChange">
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<swiper-item class="fui-swiper__item" v-for="(tab, index) in newsList" :key="index">
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<!-- #ifdef APP-NVUE -->
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<list class="fui-scroll__list" :enableBackToTop="true" :scroll-y="true" loadmoreoffset="15"
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@loadmore="loadMore(index)">
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<refresh class="fui-refresh" @refresh="onrefresh(index)" @pullingdown="onpullingdown"
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:display="tab.refreshing ? 'show' : 'hide'">
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<div class="fui-refresh__view">
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<image class="fui-refresh__icon" :src="refreshIcon"
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:style="{ width: tab.refreshing || pulling ? 0 : '20px' }"
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:class="{ 'fui-refresh__icon-active': tab.refreshFlag }"></image>
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<loading-indicator class="fui-loading__icon" animating="true" v-if="tab.refreshing">
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</loading-indicator>
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<text class="fui-loading__text">{{ tab.refreshText }}</text>
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</div>
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</refresh>
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<cell v-for="(item, idx) in tab.data" :key="item.id">
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<f-news-item :item="item" @click="detail(item)"></f-news-item>
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</cell>
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<cell>
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<fui-loadmore v-if="tab.isLoading"></fui-loadmore>
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<fui-divider text="已加载全部数据" v-if="!tab.isLoading && tab.pageIndex > 3"></fui-divider>
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</cell>
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</list>
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<!-- #endif -->
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<!-- #ifndef APP-NVUE -->
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<scroll-view class="fui-scroll__list" refresher-enabled :refresher-triggered="tab.refreshing"
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refresher-background="#F1F4FA" enable-back-to-top :refresher-threshold="100" scroll-y
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@scrolltolower="loadMore(index)" @refresherrefresh="onrefresh">
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<view style="min-height:101%">
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<view v-for="(item, idx) in tab.data" :key="idx">
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<f-news-item :item="item" @click="detail(item)"></f-news-item>
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</view>
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<fui-loadmore v-if="tab.isLoading"></fui-loadmore>
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<fui-divider text="已加载全部数据" v-if="!tab.isLoading && tab.pageIndex > 3"></fui-divider>
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</view>
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</scroll-view>
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<!-- #endif -->
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</swiper-item>
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</swiper>
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</view>
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</template>
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<script>
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import fNewsItem from './fNewsItem.nvue'
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import newsData from './index.js'
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// 缓存最多页数
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const MAX_CACHE_PAGEINDEX = 3;
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// 缓存页签数量
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const MAX_CACHE_PAGE = 3;
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export default {
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components: {
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fNewsItem
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},
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data() {
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return {
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isIos: false,
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newsList: [],
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cacheTab: [],
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tabIndex: 0,
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tabs: ['推荐', '热榜', '新时代', '科技', '懂车帝', '体育', '健康', 'NBA', '每日必看'],
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pulling: false,
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refreshIcon: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFEAAABRBAMAAABYoVcFAAAAKlBMVEUAAACXl5eZmZmfn5+YmJiXl5eampqZmZmYmJiYmJiZmZmYmJiZmZmZmZl02B9kAAAADXRSTlMAQKAQ0GAsUN+wz5CA21ow0AAAAM5JREFUSMftzLEJAkEQheFR4WzjGji4wC5E0A7E0OgaEIwF4RqwJEEODKcX1114yQ/uhsLtY6Lh57NZ7Dz1heXd27Kwcb+WlQv3Vy1rWcta1rKW/1Q2R8PWt8FYdhPLi79ZLt33KB/hibJzH1E+PaAqRfqAcuMBVSlyMmy1C6hKka0CoCpBAlUJEmgsQQJVCRKoSpBAU0mSaCpJEk0lSSMaS5JG9FuK/IkeQkmSaEjikSSaRpJoHEmiIvOoyCwqMo+KzKMi8+hoZTtte5vDPrSGI5zJ/Z1kAAAAAElFTkSuQmCC'
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};
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},
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onLoad() {
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setTimeout(() => {
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this.newsList = this.initData();
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uni.getSystemInfo({
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success: res => {
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this.isIos = 'ios' == res.platform.toLocaleLowerCase();
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}
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});
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}, 200);
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},
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methods: {
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initData() {
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let ary = [];
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for (let i = 0, length = this.tabs.length; i < length; i++) {
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let aryItem = {
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loadingText: '正在加载...',
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refreshing: false,
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refreshText: '',
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data: [],
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isLoading: false,
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pageIndex: 1
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};
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if (i === this.tabIndex) {
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aryItem.pageIndex = 2;
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aryItem.data = aryItem.data.concat(newsData);
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}
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ary.push(aryItem);
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}
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return ary;
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},
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getList(index, refresh) {
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let activeTab = this.newsList[index];
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let list = newsData || [];
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if (refresh) {
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activeTab.data = [];
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activeTab.loadingText = '正在加载...';
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activeTab.pageIndex = 2;
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activeTab.data = list || [];
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} else {
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activeTab.data = activeTab.data.concat(list);
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activeTab.pageIndex++;
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activeTab.isLoading = false;
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//根据实际修改判断条件
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if (activeTab.pageIndex > 3) {
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activeTab.loadingText = '没有更多了';
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}
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}
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},
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detail(e) {
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uni.showToast({
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title: '详情~',
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icon: 'none'
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});
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},
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loadMore(e) {
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let index = this.tabIndex
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let activeTab = this.newsList[index];
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if (activeTab.pageIndex < 4 && !activeTab.isLoading) {
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activeTab.isLoading = true;
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setTimeout(() => {
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this.getList(index);
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}, 300);
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}
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},
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change(e) {
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this.switchTab(e.index);
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},
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tabChange(e) {
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console.log(e)
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if (e.detail.source == 'touch' || e.detail.source == 'autoplay') {
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let index = e.target.current || e.detail.current;
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this.switchTab(index);
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}
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},
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switchTab(index) {
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if (this.tabIndex === index) return;
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if (this.newsList[index].data.length === 0) {
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this.getList(index);
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}
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// 缓存 tabId
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if (this.newsList[this.tabIndex].pageIndex > MAX_CACHE_PAGEINDEX) {
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let isExist = this.cacheTab.indexOf(this.tabIndex);
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if (isExist < 0) {
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this.cacheTab.push(this.tabIndex);
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}
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}
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this.tabIndex = index;
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let scrollIndex = index - 1 < 0 ? 0 : index - 1;
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// 释放 tabId
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if (this.cacheTab.length > MAX_CACHE_PAGE) {
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let cacheIndex = this.cacheTab[0];
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this.clearTabData(cacheIndex);
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this.cacheTab.splice(0, 1);
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}
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},
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clearTabData(e) {
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this.newsList[e].data.length = 0;
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this.newsList[e].loadingText = '加载更多...';
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this.newsList[e].refreshing = false;
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this.newsList[e].isLoading = false;
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this.newsList[e].pageIndex = 1;
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},
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onrefresh(e) {
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let index = this.tabIndex;
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var tab = this.newsList[index];
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// #ifdef APP-NVUE
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if (!tab.refreshFlag) {
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return;
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}
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// #endif
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// #ifndef APP-NVUE
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if (tab.refreshing) {
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return;
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}
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// #endif
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tab.refreshing = true;
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tab.refreshText = '正在刷新...';
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setTimeout(() => {
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this.getList(index, true);
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this.pulling = true;
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tab.refreshing = false;
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tab.refreshFlag = false;
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tab.refreshText = '刷新成功';
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// #ifndef H5
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uni.showToast({
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title: '刷新成功',
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icon: 'none'
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});
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// #endif
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setTimeout(() => {
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// TODO fix ios和Android 动画时间相反问题
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this.pulling = false;
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}, 500);
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}, 1000);
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},
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onpullingdown(e) {
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var tab = this.newsList[this.tabIndex];
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if (tab.refreshing || this.pulling) {
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return;
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}
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if (Math.abs(e.pullingDistance) > Math.abs(e.viewHeight)) {
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tab.refreshFlag = true;
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tab.refreshText = '释放立即刷新';
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} else {
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tab.refreshFlag = false;
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tab.refreshText = '下拉可以刷新';
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}
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}
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}
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};
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</script>
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<style>
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/* #ifndef APP-PLUS */
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page {
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width: 100%;
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min-height: 100%;
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}
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/* #endif */
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.fui-top__tabs {
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/* #ifndef APP-NVUE */
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display: flex;
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overflow: hidden;
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/* #endif */
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flex: 1;
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flex-direction: column;
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background-color: #F1F4FA;
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height: 100vh;
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}
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.fui-swiper__box {
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flex: 1;
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}
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.fui-swiper__item {
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flex: 1;
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/* #ifndef APP-NVUE */
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display: flex;
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/* #endif */
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flex-direction: row;
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}
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.fui-scroll__list {
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/* flex: 1; */
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/* #ifndef APP-NVUE */
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display: flex;
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/* #endif */
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/* #ifndef MP-ALIPAY */
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flex-direction: column;
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/* #endif */
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width: 750rpx;
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}
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/* #ifdef APP-NVUE */
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.fui-refresh {
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width: 750rpx;
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height: 64px;
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justify-content: center;
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}
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.fui-refresh__view {
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flex-direction: row;
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flex-wrap: nowrap;
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align-items: center;
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justify-content: center;
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}
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.fui-refresh__icon {
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width: 20px;
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height: 20px;
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transition-duration: 0.25s;
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transition-property: transform;
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transform: rotate(0deg);
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transform-origin: 10px 10px;
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}
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.fui-refresh__icon-active {
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transform: rotate(180deg);
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}
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.fui-loading__icon {
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width: 20px;
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height: 20px;
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margin-right: 5px;
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color: #999999;
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}
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.fui-loading__text {
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margin-left: 2px;
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font-size: 14px;
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color: #999999;
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}
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/* #endif */
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</style>
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