this.getPicSave() getPicSave(){ let _this=this wx.getSetting({ scope: 'scope.writePhotosAlbum', success(res) { if (res.authSetting['scope.writePhotosAlbum']) { _this.photoAuthorization(); } else if (res.authSetting['scope.writePhotosAlbum'] === undefined) { wx.authorize({ scope: 'scope.writePhotosAlbum', success() { _this.photoAuthorization(); }, fail(){ wx.showToast({ title: '您没有授权,无法保存到相册', icon: 'none' }) } }) }else { wx.showModal({ title: '是否授权保存到相册', content: '请确认授权,否则无法保存到相册', success: res => { if (res.confirm) { wx.openSetting({ success(res) { if (res.authSetting['scope.writePhotosAlbum']) { _this.photoAuthorization(); }else{ wx.showToast({ title:'您没有授权,无法保存到相册', icon:'none', duration: 2000, //toast 显示时长,单位为ms,默认值1500 mask: true //是否显示透明蒙层,防止触摸穿透,默认为false }) _this.setData({ isSaving: false }); } } }) } } }) } } }) }, async photoAuthorization() { let { sellerId, schoolId } = this.data.SellerInfo let requstUrl = GET_SELLERQRCODE //替换自己项目的接口和入参 let data = { schoolId, sellerId, } try { let result = await Util.request(requstUrl, data, true) const code = result.code if (code == 200) { wx.downloadFile({ url: result.data.qrCodeUrl, //返回文件url(图片url) success: (res) => { wx.showShareImageMenu({ path: res.tempFilePath, success: (res) => { console.log(402, res); if (res.errMsg == 'showShareImageMenu:ok') { wx.showToast({ title: '操作成功', icon: 'success', duration: 1300, mask: true }) return } }, fail: (res) => { } }) } }) return } else { wx.showToast({ title: '请重新登录', icon: 'none', duration: 1300, mask: true }) return } } catch (err) { console.log(err); } },