微信小程序获取用户授权的思路

 export function requestSubscribeMessage(callback){	uni.requestSubscribeMessage({		tmplIds: [pushReservationTmplIds],		success: (res)=>{			let value = res[pushReservationTmplIds]			console.log("申请成功：", res, value)			if(value == 'reject'){				guideOpenSubscribeMessage(callback)			}else if(value == 'accept'){				// showToast('授权成功')				if(isFunction(callback))					callback.call(null, true)			}else {				showToast("授权订阅消息有误")			}					},		fail: (error)=>{			console.error("异常情况：", error)			if (error.errCode == 20004) {				// console.log(res, 'fail:用户关闭了主开关，无法进行订阅,引导开启---');				guideOpenSubscribeMessage(callback);			}					}	})}
export function guideOpenSubscribeMessage(callback){	uni.showModal({		title: '提示',		showCancel: false,		content: '检测到您没有开启订阅消息的权限，是否去设置？',		success: function (res) {			if (res.confirm) {				console.log('用户点击确定');				uni.openSetting({					complete() {						guidSubscribeMessageAuthAfter(callback)					},					fail(error) {						console.error("异常情况：", error)					}				})			} else if (res.cancel) {				console.log('用户点击取消');			}		}	})	}
// res.subscriptionsSetting = {//   mainSwitch: true, // 订阅消息总开关//   itemSettings: {   // 每一项开关//     SYS_MSG_TYPE_INTERACTIVE: 'accept', // 小游戏系统订阅消息//     SYS_MSG_TYPE_RANK: 'accept'//     zun-LzcQyW-edafCVvzPkK4de2Rllr1fFpw2A_x0oXE: 'reject', // 普通一次性订阅消息//     ke_OZC_66gZxALLcsuI7ilCJSP2OJ2vWo2ooUPpkWrw: 'ban',//   }// }export function guidSubscribeMessageAuthAfter(callback) {//引导用户 开启订阅消息 之后，「openSetting」 接口暂时不会返回，用户手动设置后的状态，所以采用「getSetting」接口重新进行查询	uni.getSetting({	  withSubscriptions: true,	  success: res => {		console.log(res.subscriptionsSetting)		let {		  authSetting = {},		  subscriptionsSetting: { mainSwitch = false, itemSettings = {} } = {}		} = res;
		if ((authSetting['scope.subscribeMessage'] || mainSwitch) &&		  itemSettings[pushReservationTmplIds] === 'accept'		) {			console.log('用户手动开启同意了，订阅消息');			if(isFunction(callback))				callback.call(null, true)		} else {			console.log('您没有同意授权订阅消息');			if(isFunction(callback))				callback.call(null, false)		}	  }	})}