小程序保存圖片到本地相冊

 

/**
   * 下載圖標到相冊
   */
  saveToPhone:function(e){


    //獲取相冊授權
    let imgSrc = this.data.qrcode_img            //要保存的圖片url
    console.log(imgSrc)
    wx.showLoading({
      title: '保存中...'
    })
    wx.downloadFile({    //下載文件資源到本地
      url: imgSrc,
      success: function (res) {
        console.log(res);
        //圖片保存到本地
        wx.saveImageToPhotosAlbum({
          filePath: res.tempFilePath,
          success: function (data) {
            console.log(data)
            wx.hideLoading()
            wx.showToast({
              title: '保存成功',
              icon: 'success',
              duration: 2000
            })
          },
          fail: function (err) {
            console.log(err);
            // $yjpToast.show({
            //   text: `保存失敗`
            // })
            if (err.errMsg === "saveImageToPhotosAlbum:fail auth deny" || err.errMsg === "saveImageToPhotosAlbum:fail:auth denied") {
              console.log("當初用戶拒絕，再次發起授權")
              wx.showModal({
                title: '提示',
                content: '需要您授權保存相冊',
                showCancel: false,
                success: modalSuccess => {
                  wx.openSetting({
                    success(settingdata) {
                      console.log("settingdata", settingdata)
                      if (settingdata.authSetting['scope.writePhotosAlbum']) {
                        wx.showModal({
                          title: '提示',
                          content: '獲取權限成功,再次點擊圖片即可保存',
                          showCancel: false,
                        })
                      } else {
                        wx.showModal({
                          title: '提示',
                          content: '獲取權限失敗，將無法保存到相冊哦~',
                          showCancel: false,
                        })
                      }
                    },
                    fail(failData) {
                      console.log("failData", failData)
                    },
                    complete(finishData) {
                      console.log("finishData", finishData)
                    }
                  })
                }
              })
            }
          },
          complete(res) {
            console.log(res);
            wx.hideLoading()
          }
        })


      }  

    })






  },

 

轉 : https://blog.csdn.net/Zhoulizhen_/article/details/92764492