mobile-frame-h5-example/pages/componentsA/lazyLoad/index.vue

<template>
	<view class="wrap">
		<view class="item-warp">
			<view class="item" v-for="(item, index) in list" :key="index">
				<u-lazy-load threshold="-450" height="400" img-mode="aspectFill" border-radius="10" :image="item.src" :index="index" @statusChange="statusChange" @clickImg="clickImg"></u-lazy-load>
			</view>
		</view>
		<u-loadmore :status="status" @loadmore="getData"></u-loadmore>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				list: [],
				status: 'loadmore',
				data: [{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB124_3NXXXXXasXVXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i7/TB1IWtgQFXXXXcmXFXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB1_f_PLXXXXXbVXpXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						// 这里会加载失败，显示错误的占位图
						src: "error.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i6/TB1SIYrLXXXXXaAXpXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB11yxeNVXXXXbwXFXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i3/TB1ndJiQFXXXXctaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i4/TB1BYGDLpXXXXbuXXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i2/TB1_9GoMVXXXXXmaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i2/TB1cSZZNFXXXXaKaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						// 这里会加载失败，显示错误的占位图
						src: "error.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i8/TB1RVS_QpXXXXXBXXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i5/TB1xEJiLXXXXXcxaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i6/TB1DSuHJVXXXXXmXXXXwu0bFXXX.png_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i5/TB1aMNyLpXXXXa2XXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i8/TB1JRHEQpXXXXXwXVXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i7/TB1qKEuQpXXXXXYXXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i7/TB1TlOfQFXXXXX2XXXXwu0bFXXX.png_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB1SKu.QpXXXXbDXVXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						// 这里会加载失败，显示错误的占位图
						src: "error.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i8/TB1um5GQpXXXXbiaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB1pxCTQpXXXXa2apXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i6/TB1zksMNVXXXXaRapXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i4/TB1nbrcOXXXXXXEXpXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i4/TB1CI_NQpXXXXXaXVXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i2/TB18vTdQFXXXXXlXpXXwu0bFXXX.png_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i7/TB1doDVQpXXXXcRaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB17LgBNFXXXXaSXVXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i6/TB1fVJJQFXXXXcyXpXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i3/TB1wnBTKFXXXXcQXXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB124_3NXXXXXasXVXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i7/TB1IWtgQFXXXXcmXFXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB1_f_PLXXXXXbVXpXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB1DX3hIpXXXXXIaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i6/TB1SIYrLXXXXXaAXpXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB11yxeNVXXXXbwXFXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i3/TB1ndJiQFXXXXctaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i4/TB1BYGDLpXXXXbuXXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i2/TB1_9GoMVXXXXXmaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i2/TB1cSZZNFXXXXaKaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						// 这里会加载失败，显示错误的占位图
						src: "error.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i8/TB1RVS_QpXXXXXBXXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i5/TB1xEJiLXXXXXcxaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i6/TB1DSuHJVXXXXXmXXXXwu0bFXXX.png_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i5/TB1aMNyLpXXXXa2XXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i8/TB1JRHEQpXXXXXwXVXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i7/TB1qKEuQpXXXXXYXXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i7/TB1TlOfQFXXXXX2XXXXwu0bFXXX.png_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB1SKu.QpXXXXbDXVXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i2/TB17gJ3OXXXXXcrXpXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i8/TB1um5GQpXXXXbiaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB1pxCTQpXXXXa2apXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i6/TB1zksMNVXXXXaRapXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i4/TB1nbrcOXXXXXXEXpXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i4/TB1CI_NQpXXXXXaXVXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i2/TB18vTdQFXXXXXlXpXXwu0bFXXX.png_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i7/TB1doDVQpXXXXcRaXXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						src: "https://gtd.alicdn.com/sns_logo/i1/TB17LgBNFXXXXaSXVXXSutbFXXX.jpg_240x240xz.jpg",
					},
					{
						// 这里会加载失败，显示错误的占位图
						src: "error.jpg",
					}
				]
			}
		},
		onLoad() {
			this.getData();
		},
		onReachBottom() {
			this.getData();
		},
		methods: {
			statusChange(status) {
				//console.log(status);
			},
			clickImg(img) {
				//console.log(img);
			},
			getData() {
				let index = 0;
				this.status = 'loading';
				setTimeout(() => {
					for(let i = 0; i < 10; i++) {
						index = this.$u.random(0, this.data.length - 1);
						this.list.push({
							src: this.data[index].src
						})
					}
					this.status = 'loadmore';
				}, 1500);
			}
		},
	} 
</script>

<style lang="scss" scoped>
	.wrap {
		padding: 30rpx;
		display: block;
		
	}
	
	.item-warp {
		display: flex;
		justify-content: space-between;
		flex-wrap: wrap;
	}
	
	.item-warp .item {
		flex: 0 0 335rpx;
		height: 400rpx;
		margin-bottom: 20rpx;
		border-radius: 10rpx;
		overflow: hidden;
	}
</style>