分享报告pdf功能

通过预览文件用户手动操作分享保存实现分享功能。

deletContract() {
  try {
    let file = wx.getFileSystemManager();
    file.readdir({
      dirPath: `${wx.env.USER_DATA_PATH}`,
      success: res => {
        console.log(res);
        if (res.files.length > 2) {
          file.unlink({
            filePath: `${wx.env.USER_DATA_PATH}/${res.files[0]}`,
            complete: res => {

            }
          })
        }
      }
    })
  } catch (error) {

  }
},
  shareBg() {
    let that = this;
    const fileExtName = ".pdf";
    const randfile ='报告单' + new Date().getTime() + fileExtName; //分享的文件名
    const newPath = `${wx.env.USER_DATA_PATH}/${randfile}`;
    that.deletContract();
    wx.downloadFile({
      url: 'https://www.leomay.com/upload/file/mmo-20170707165001.pdf',//网络报告地址（接口请求回的）
      filePath: newPath,
      success: function(res) {
        const filePath = res.tempFilePath;
        wx.openDocument({
          filePath: newPath,
          showMenu: true,
          fileType: 'pdf',
          success: function(res) {}
        })
      },
      fail: function(res) {
        wx.hideLoading();
      }
    })
  }

通过分享api直接分享到用户，无文件预览效果

    deletContract() {
				try {
					let file = wx.getFileSystemManager();
					file.readdir({
						dirPath: `${wx.env.USER_DATA_PATH}`,
						success: res => {
							console.log(res);
							if (res.files.length > 2) {
								file.unlink({
									filePath: `${wx.env.USER_DATA_PATH}/${res.files[0]}`,
									complete: res => {

									}
								})
							}
						}
					})
				} catch (error) {

				}
			},
			shareBg() {
				let that = this;
				const fileExtName = ".pdf";
				const randfile ='报告单' + new Date().getTime() + fileExtName; //分享的文件名
				const newPath = `${wx.env.USER_DATA_PATH}/${randfile}`;
				that.deletContract();
				wx.downloadFile({
					url: 'https://www.leomay.com/upload/file/mmo-20170707165001.pdf',
					filePath: newPath,
					success: function(res) {
						const filePath = res.tempFilePath;
						// wx.openDocument({
						// 	filePath: newPath,
						// 	showMenu: true,
						// 	fileType: 'pdf',
						// 	success: function(res) {}
						// })
						wx.shareFileMessage({
							filePath: newPath,
							success() {},
							fail: console.error,
						})
					},
					fail: function(res) {
						wx.hideLoading();
					}
				})
			}