NurseStationApp/pages/customerservice/customerservice.vue

<template>
	<view class="app">
		<view class="title">
			长按识别二维码
		</view>
		<image :src="img" mode="" :show-menu-by-longpress="true"></image>
	</view>
</template>

<script>
	import baseurl from '@/api/baseurl.js'
	export default {
		data() {
			return {
				img: '',
			};
		},
		onShow() {
			this.img = baseurl + '/profile/appletPicture/customer.jpg'
		},
		methods: {
			previewImage(e) {
				uni.previewImage({
					// 需要预览的图片链接列表。若无需预览，可以注释urls
					urls: this.img,
					// 为当前显示图片的链接/索引值
					current: 0,
					// 图片指示器样式	
					indicator: 'default',
					// 是否可循环预览
					loop: false,
					// 长按图片显示操作菜单，如不填默认为保存相册
					// longPressActions:{
					// 	itemList:[this.l('发送给朋友'),this.l]
					// },
					success: res => {
						console.log('previewImage res', res);
					},
					fail: err => {
						console.log('previewImage err', err);
					}
				});
			},
		},
	}
</script>

<style lang="scss">
	.app {
		width: 100%;
		height: 100vh;
		padding: 0;
		background-color: #000000;
		position: relative;

		.title {
			color: #fff;
			width: 100%;
			text-align: center;
			position: absolute;
			top: 50rpx;
		}

		image {
			width: 100%;
			height: 1300rpx;
		}
	}
</style>