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163
fuintUniapp/components/page/banner/index.vue
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163
fuintUniapp/components/page/banner/index.vue
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<template>
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<view class="diy-banner" :style="{ height: `${imgHeights[imgCurrent]}rpx` }">
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<!-- 图片轮播 -->
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<swiper :autoplay="autoplay" class="swiper-box" :duration="duration" :circular="true" :interval="itemStyle.interval * 1000"
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@change="_bindChange">
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<swiper-item v-for="(dataItem, index) in dataList" :key="index">
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<image lazy-load :lazy-load-margin="0" class="slide-image" :src="dataItem.image" @click="onLink(dataItem.url)"
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@load="_imagesHeight" />
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</swiper-item>
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</swiper>
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<!-- 指示点 -->
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<view class="indicator-dots" :class="itemStyle.btnShape">
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<view class="dots-item" :class="{ active: imgCurrent == index }" :style="{ backgroundColor: itemStyle.btnColor }"
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v-for="(dataItem, index) in dataList" :key="index"></view>
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</view>
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</view>
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</template>
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<script>
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import mixin from '../mixin'
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export default {
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name: "Banner",
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/**
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* 组件的属性列表
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* 用于组件自定义设置
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*/
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props: {
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itemIndex: String,
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itemStyle: Object,
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params: Object,
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dataList: Array
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},
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mixins: [mixin],
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/**
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* 私有数据,组件的初始数据
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* 可用于模版渲染
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*/
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data() {
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return {
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width: 730,
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indicatorDots: false, // 是否显示面板指示点
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autoplay: true, // 是否自动切换
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duration: 800, // 滑动动画时长
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imgHeights: [], // 图片的高度
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imgCurrent: 0, // 当前banne所在滑块指针
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}
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},
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/**
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* 组件的方法列表
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* 更新属性和数据的方法与更新页面数据的方法类似
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*/
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methods: {
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onLink(linkObj) {
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this.$navTo(linkObj)
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},
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/**
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* 计算图片高度
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*/
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_imagesHeight(e) {
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// 获取图片真实宽度
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const imgwidth = e.detail.width,
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imgheight = e.detail.height,
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// 宽高比
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ratio = imgwidth / imgheight;
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// 计算的高度值
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const viewHeight = this.width / ratio;
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const imgHeights = this.imgHeights;
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// 把每一张图片的高度记录到数组里
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imgHeights.push(viewHeight);
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this.imgHeights = imgHeights;
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},
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/**
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* 记录当前指针
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*/
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_bindChange(e) {
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this.imgCurrent = e.detail.current
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}
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}
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}
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</script>
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<style lang="scss" scoped>
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.diy-banner {
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position: relative;
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max-height: 400rpx;
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margin-top: 100rpx;
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/* #ifdef H5 */
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margin-top: 120rpx;
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/* #endif */
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// swiper组件
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.swiper-box {
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height: 100%;
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padding: 0rpx 20rpx 0rpx 20rpx;
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max-width: 750rpx;
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max-height: 450rpx;
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.slide-image {
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width: 100%;
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height: 100%;
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margin: 0 auto;
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display: block;
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border-radius: 10rpx;
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}
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}
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/* 指示点 */
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.indicator-dots {
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width: 100%;
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height: 28rpx;
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padding: 0 20rpx;
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position: absolute;
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left: 0;
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right: 0;
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bottom: 20rpx;
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opacity: 0.8;
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display: flex;
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justify-content: center;
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.dots-item {
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width: 16rpx;
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height: 16rpx;
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margin-right: 8rpx;
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background-color: #fff;
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&:last-child {
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margin-right: 0;
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}
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&.active {
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background-color: #313131 !important;
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}
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}
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// 圆形
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&.round .dots-item {
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width: 16rpx;
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height: 16rpx;
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border-radius: 20rpx;
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}
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// 正方形
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&.square .dots-item {
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width: 16rpx;
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height: 16rpx;
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}
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// 长方形
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&.rectangle .dots-item {
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width: 22rpx;
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height: 14rpx;
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}
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}
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}
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</style>
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