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