微信小程序保存图片到相册

一时失言乱红尘 2022-02-05 07:39 432阅读 0赞

/**
     * 保存到相册
     */
    downShareImgFun : function () {
        let that = this;
        //获取相册授权
        wx.getSetting({
            success(res) {
                if (!res.authSetting['scope.writePhotosAlbum']) {
                    wx.authorize({
                        scope:'scope.writePhotosAlbum',
                        success() {
                            console.log('授权成功')
                        }
                    });
                }
            }
        });
    
        wx.downloadFile({
            url: that.data.shareImage,
            success: function (res) {
                console.log(res);
                //图片保存到本地
                wx.saveImageToPhotosAlbum({
                    filePath: res.tempFilePath,
                    success: function (data) {
                        wx.showToast({
                            title: '保存成功',
                            icon: 'success',
                            duration: 2000
                        });
                    },
                    fail: function (err) {
                        console.log(err);
                        if (err.errMsg === "saveImageToPhotosAlbum:fail auth deny") {
                            console.log("当初用户拒绝，再次发起授权")
                            wx.openSetting({
                                success(settingdata) {
                                    console.log(settingdata)
                                    if (settingdata.authSetting['scope.writePhotosAlbum']) {
                                        console.log('获取权限成功，给出再次点击图片保存到相册的提示。')
                                    } else {
                                        console.log('获取权限失败，给出不给权限就无法正常使用的提示')
                                    }
                                }
                            })
                        }
                    },
                    complete(res){
                        console.log(res);
                    }
                });
            }
        });
    },

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTQ2MTQ4Nw_size_16_color_FFFFFF_t_70][]

参考地址：

[小程序之保存图片到相册的几种方法][Link 1]

[小程序丨【已解决】wx.downloadFile调用问题][wx.downloadFile]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTQ2MTQ4Nw_size_16_color_FFFFFF_t_70]: /images/20220205/73572c39de7f4344bbdc122d9b5b4491.png
[Link 1]: https://www.jianshu.com/p/5479041607fa
[wx.downloadFile]: https://www.aiyingli.com/51576.html