小程序-保存图片到相册拒绝授权后，重新调用授权保存图片到相册

叁歲伎倆 2021-10-19 11:54 508阅读 0赞

**1.开发工具上的代码（ok）**

wx.saveImageToPhotosAlbum({
         filePath: canvasImg,
         success: function (res) {
               wx.showToast({
                    title: '保存成功',
                    image: "../images/nologo.png",
                    duration: 1500,
               })
        },
        fail: function (res) {
               console.log(res)
               if (res.errMsg === "saveImageToPhotosAlbum:fail auth deny") {
                         console.log("打开设置窗口");
                         wx.openSetting({
                                   success(settingdata) {
                                            console.log(settingdata)
                                           if (settingdata.authSetting["scope.writePhotosAlbum"]) {
                                                     console.log("获取权限成功，再次点击图片保存到相册")
                                           } else {
                                                     console.log("获取权限失败")
                                           }
                                   }
                          })
                 }
    })

**2.下面的代码是真机上成功运行的（ok）**

wx.saveImageToPhotosAlbum({
                 filePath: canvasImg,
                  success: function (res) {
                        wx.showToast({
                               title: '保存成功',
                               image: "../images/nologo.png",
                               duration: 1500,
                         })
                    },
                   fail: function (res) {
                         console.log(res)
                         if (res.errMsg === "saveImageToPhotosAlbum:fail:auth denied") {
                                   console.log("打开设置窗口");
                                   wx.openSetting({
                                             success(settingdata) {
                                                    console.log(settingdata)
                                                    if (settingdata.authSetting["scope.writePhotosAlbum"]) {
                                                                    console.log("获取权限成功，再次点击图片保存到相册")
                                                    } else {
                                                                     console.log("获取权限失败")
                                                    }
                                               }
                                    })
                         }
                 }
     })