微信小程序保存图片到本地

 <view class="savecode" bindtap=‘saveToPhone‘>
保存二维码
</view>

// 保存图片
saveToPhone(e){
// let imgSrc =  e.currentTarget.dataset.url;  //要保存的图片url
// console.log(imgSrc)
  wx.showLoading({
title: ‘保存中...‘
})
wx.downloadFile({    //下载文件资源到本地
url: this.data.imgUrl,
success: function (res) {
console.log(res);
//图片保存到本地
      wx.saveImageToPhotosAlbum({
filePath: res.tempFilePath,
success: function (data) {
wx.hideLoading()
wx.showToast({
title: ‘保存成功‘,
icon: ‘success‘,
duration: 2000
})
},
fail: function (err) {
if (err.errMsg === "saveImageToPhotosAlbum:fail auth deny" || err.errMsg === "saveImageToPhotosAlbum:fail:auth denied") {
console.log("当初用户拒绝，再次发起授权")
wx.showModal({
title: ‘提示‘,
content: ‘需要您授权保存相册‘,
showCancel: false,
success: modalSuccess => {
wx.openSetting({
success(settingdata) {
console.log("settingdata", settingdata)
if (settingdata.authSetting[‘scope.writePhotosAlbum‘]) {
wx.showModal({
title: ‘提示‘,
content: ‘获取权限成功,再次点击图片即可保存‘,
showCancel: false,
})
} else {
wx.showModal({
title: ‘提示‘,
content: ‘获取权限失败，将无法保存到相册哦~‘,
showCancel: false,
})
}
},
fail(failData) {
console.log("failData", failData)
},
complete(finishData) {
console.log("finishData", finishData)
}
})
}
})
}
},
complete(res) {
console.log(res);
wx.hideLoading()
}
})
}
})
},