applet_nongchang/template/poster/index.js

const app = getApp();

Page({
  pid: '',

  onLoad: function (options) {
    var that = this;
    this.pid = options.id;
    app.request('product.api.poster',{product_id: this.pid},{
      success: function(data, res){
        app.set(that, 'imgUrl', data);
      }
    })
  },

  /**
   * 保存好报分享到朋友圈
   */
  savePoster: function(){
    var imgUrl = this.data.imgUrl;
    wx.getImageInfo({
      src: imgUrl,
      success: function (sres){
        console.log('wx.getImageInfo', sres.path);
        wx.saveImageToPhotosAlbum({
          filePath: sres.path,
          success: function (fres){
            console.log('wx.saveImageToPhotosAlbum', fres);
          }
        })
      }
    })
  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function (options) {
    //打开好友列表
    wx.showShareMenu({
      withShareTicket: true,
      success: function (res) {
        console.log('wx.showShareMenu success', res.data);
      },
      fail: function (res) {
        console.log('wx.showShareMenu fail', res.data);
      }
    });

    if (app.getUid() != '') {//拼接分享参数
      var scene = app.getUid() + ',' + this.pid;
      return {
        title: '',
        desc: '',
        path: '/template/home/index?scene=' + encodeURIComponent(scene)
      };
    }

  }
})