微信小程序点击图片实现长按预览、保存、识别带参数二维码、转发等功能

<view wx:for=“{{imgalist}}” wx:for-item=“image” class=“previewimg”><image src=“{{image}}” data-src=“{{image}}” bindtap=“previewImage”></image></view>js页面Page({data: {imgalist: [‘http://sz800800.cn/video/test.png','http://sz800800.cn/video/test.png'],},previewImage: function (e) {wx.previewImage({current: this.data.imgalist, // 当前显示图片的http链接urls: this.data.imgalist // 需要预览的图片http链接列表})},})

<!pages/dis_dil/dis_d5.wxml><text class=‘search_no'>点击可保存及分享二维码</text><view class=‘view_img' ><image class=‘img' bindtap=“previewImage” src=‘{{scene}}'></image></view>// pages/dis_dil/dis_d5.jsvar app = getApp();Page({data: {scene: ”},onLoad: function (options) {var that = thisvar scene_img = ” //这里添加图片的地址that.setData({scene: scene_img})},previewImage: function (e) {wx.previewImage({urls: this.data.scene.split(‘,')// 需要预览的图片http链接 使用split把字符串转数组。不然会报错})}})