效果图

代码

<template>
	<view>

		<!-- 自定义头部 -->
		<u-navbar title=" " :bgColor="bgColor">
			<view class="u-nav-slot" slot="left">
				<view class="leftCon">
					<view class="countDown">
						{{currentTime}}s
					</view>
					<view class="line">|</view>
					<view class="passBtn" @click="passClick()">跳过</view>
				</view>
			</view>
		</u-navbar>

		<!-- 轮播图 -->
		<swiper class="swiperList_box" :circular="true" :vertical="false" :autoplay="true" interval="2000"
			@change="swiperChange">
			<swiper-item class="swiperItem" :class="swiperCurrent==index?'cur':''" v-for="(item,index) in swiperList"
				:key="index">
				<image :src="item.img_url" mode="scaleToFill"></image>
			</swiper-item>
		</swiper>

		<!-- 轮播指示点 -->
		<view class="indicationList_box">
			<block v-for="(item,index) in swiperList" :key="index">
				<view class="spotItem" :class="swiperCurrent==index?'active':''"></view>
			</block>
		</view>

	</view>
</template>

<script>
	export default {
		data() {
			return {
				// 自定义头部
				bgColor: 'transparent',

				// 定时器
				interval: null,

				// 倒计时时长
				currentTime: 0,

				// 轮播图
				swiperList: [],
				swiperCurrent: 0,
			}
		},
		onLoad() {

		},
		onShow() {},
		async onReady() {
			var _this = this;
			await _this.$onLaunched;
			_this.currentTime = uni.getStorageSync('webConfig').web_config_str.welcome_time_num;
			_this.getSwiperList();
		},
		methods: {
			// 获取轮播图
			getSwiperList() {
				var _this = this;
				uni.$u.http.get('/api/other.News/get_data_list', {
					params: {
						cat_id: '302', //301首页、302欢迎页、303商家登录
					}
				}).then(res => {
					console.log("==获取轮播图==");
					console.log(res);
					uni.hideLoading();
					_this.swiperList = res.data;

					_this.codeText();
				}).catch(res => {
					console.log(res);
				})
			},

			// 时间倒计时
			codeText() {
				var _this = this;
				var currentTime = _this.currentTime;
				_this.interval = setInterval(function() {
					currentTime--;
					// console.log(currentTime)
					_this.currentTime = currentTime;
					if (currentTime <= 0) {
						clearInterval(_this.interval);
						_this.passClick();
					}
				}, 1000)
			},

			// 滑动轮播图
			swiperChange(e) {
				this.swiperCurrent = e.detail.current;
			},

			// 跳过
			passClick() {
				var _this = this;
				clearInterval(_this.interval);
				uni.switchTab({
					url: '/pages/index/index'
				})
			},

		}
	}
</script>

<style lang="scss" scoped>
	// 自定义头部
	.leftCon {
		width: 200rpx;
		height: 62rpx;
		border-radius: 30rpx;
		border: 2rpx solid #fff;
		box-sizing: border-box;
		overflow: hidden;
		display: flex;
		justify-content: center;
		align-items: center;
	}

	.countDown,
	.line,
	.passBtn {
		color: #fff;
		opacity: 0.7;
	}

	.line {
		margin: 0 20rpx;
	}

	/* 轮播图 */
	.swiperList_box {
		width: 100%;
		height: 100vh;
		position: relative;
		top: 0;
		z-index: 1;
	}

	.swiperItem {
		width: 100%;
		height: 100vh;
	}

	.swiperItem image {
		width: 100%;
		height: 100%;
	}

	/* 轮播指示点 */
	.indicationList_box {
		width: 100%;
		height: 36rpx;
		display: flex;
		justify-content: center;
		align-items: center;
		position: fixed;
		left: 0;
		right: 0;
		bottom: 30rpx;
		z-index: 99;
	}

	.spotItem {
		width: 10rpx;
		height: 10rpx;
		border-radius: 20rpx;
		background-color: rgba(0, 0, 0, 0.3);
		overflow: hidden;
		margin: 0 5rpx;
	}

	.spotItem.active {
		width: 30rpx;
		background-color: rgba(0, 0, 0, 0.6);
	}
</style>