144 lines
4.0 KiB
Vue
144 lines
4.0 KiB
Vue
<!-- z-paging -->
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<!-- github地址:https://github.com/SmileZXLee/uni-z-paging -->
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<!-- dcloud地址:https://ext.dcloud.net.cn/plugin?id=3935 -->
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<!-- 反馈QQ群：790460711 -->
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<!-- 滑动切换选项卡swiper-item，此组件支持easycom规范，可以在项目中直接引用 -->
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<template>
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<view class="zp-swiper-item-container">
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<z-paging ref="paging" :fixed="false"
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:auto="false" :useVirtualList="useVirtualList" :useInnerList="useInnerList" :cellKeyName="cellKeyName" :innerListStyle="innerListStyle"
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:preloadPage="preloadPage" :cellHeightMode="cellHeightMode" :virtualScrollFps="virtualScrollFps" :virtualListCol="virtualListCol"
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@query="_queryList" @listChange="_updateList" style="height: 100%;">
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<slot />
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<template #header>
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<slot name="header"/>
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</template>
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<template #cell="{item,index}">
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<slot name="cell" :item="item" :index="index"/>
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</template>
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<template #footer>
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<slot name="footer"/>
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</template>
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</z-paging>
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</view>
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</template>
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<script>
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import zPaging from '../z-paging/z-paging'
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export default {
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name: "z-paging-swiper-item",
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components: { zPaging },
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data() {
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return {
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firstLoaded: false
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}
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},
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props: {
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//当前组件的index，也就是当前组件是swiper中的第几个
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tabIndex: {
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type: Number,
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default: function() {
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return 0
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}
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},
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//当前swiper切换到第几个index
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currentIndex: {
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type: Number,
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default: function() {
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return 0
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}
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},
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//是否使用虚拟列表，默认为否
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useVirtualList: {
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type: Boolean,
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default: false
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},
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//是否在z-paging内部循环渲染列表(内置列表)，默认为否。若use-virtual-list为true，则此项恒为true
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useInnerList: {
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type: Boolean,
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default: false
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},
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//内置列表cell的key名称，仅nvue有效，在nvue中开启use-inner-list时必须填此项
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cellKeyName: {
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type: String,
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default: ''
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},
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//innerList样式
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innerListStyle: {
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type: Object,
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default: function() {
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return {};
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}
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},
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//预加载的列表可视范围(列表高度)页数，默认为12，即预加载当前页及上下各12页的cell。此数值越大，则虚拟列表中加载的dom越多，内存消耗越大(会维持在一个稳定值)，但增加预加载页面数量可缓解快速滚动短暂白屏问题
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preloadPage: {
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type: [Number, String],
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default: 12
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},
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//虚拟列表cell高度模式，默认为fixed，也就是每个cell高度完全相同，将以第一个cell高度为准进行计算。可选值【dynamic】，即代表高度是动态非固定的，【dynamic】性能低于【fixed】。
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cellHeightMode: {
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type: String,
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default: 'fixed'
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},
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//虚拟列表列数，默认为1。常用于每行有多列的情况，例如每行有2列数据，需要将此值设置为2
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virtualListCol: {
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type: [Number, String],
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default: 1
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},
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//虚拟列表scroll取样帧率，默认为60，过高可能出现卡顿等问题
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virtualScrollFps: {
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type: [Number, String],
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default: 60
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},
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},
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watch: {
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currentIndex: {
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handler(newVal, oldVal) {
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if (newVal === this.tabIndex) {
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//懒加载，当滑动到当前的item时，才去加载
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if (!this.firstLoaded) {
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this.$nextTick(()=>{
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let delay = 5;
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// #ifdef MP-TOUTIAO
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delay = 100;
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// #endif
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setTimeout(() => {
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this.$refs.paging.reload().catch(() => {});
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}, delay);
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})
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}
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}
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},
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immediate: true
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}
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},
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methods: {
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reload(data) {
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return this.$refs.paging.reload(data);
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},
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complete(data) {
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this.firstLoaded = true;
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return this.$refs.paging.complete(data);
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},
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_queryList(pageNo, pageSize, from) {
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this.$emit('query', pageNo, pageSize, from);
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},
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_updateList(list) {
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this.$emit('updateList', list);
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}
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}
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}
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</script>
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<style scoped>
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.zp-swiper-item-container {
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/* #ifndef APP-NVUE */
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height: 100%;
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/* #endif */
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/* #ifdef APP-NVUE */
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flex: 1;
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/* #endif */
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}
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</style>
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