小程序原生js获取用户权限

1.首先要有一个按钮

<view name="authorizemodal">
    <view class="drawer_screen" wx:if="{{isauthorizeModal}}">
        <view class="drawer_box fishqccenter phonechoosebox">
            <view>
                <image style="width:90%;" src="https://try.fishqc.com/img/Try-sm/authorization.png" mode="widthFix"></image>
            </view>
            <view>
                <button class="authorization-btn" open-type="getUserInfo" bindgetuserinfo="getlogincode" style="border-radius: 1rpx"></button>
            </view>
            <!-- <view class="weChatAuth">授权提示</view>
            <view class="phonechoosetxt">放心试小程序需授权获取微信权限信息</view>
            <view class="phonechoosebtncontain">
               <view class="getPhoneContain">
                    <button class="author-btn"  open-type="getUserInfo" bindgetuserinfo="getlogincode" style="border-radius: 1rpx">授权</button>
               </view>
            </view> -->
        </view>
    </view>
</view>

2.授权的js代码

var app = getApp()
Component({
    properties: {

    },
    data: {
        isauthorizeModal:false
    },
    methods: {
        toasttips: function (text, icon, time) {
            wx.showToast({
                title: text == null ? '' : text,
                icon: icon,
                duration: time == null ? '1000' : time
            })
        },
        getlogincode: function () {
            var that = this;
            wx.login({
                success: function (res) {
                    if (res.code) {
                        var logincode = res.code

                        // 弹窗授权
                        wx.getUserInfo({
                            success: function (res) {
                                if (res.errMsg == 'getUserInfo:ok') {
                                    var encryptedData = res.encryptedData
                                    var iv = res.iv;
                                    that.setData({
                                        isauthorizeModal: false
                                    })
                                    that.triggerEvent('myevent',{arg:false})
                                    that.WeixinLogin(logincode, encryptedData, iv);
                                }

                            },
                            fail: function (res) {
                                // console.log('点击确认取消')
                                that.checkauthorize();
                            }
                        })
                    } else {
                        // console.log('登录失败！' + res.errMsg)

                    }
                }
            });

        },
        // 检查是否授权过
        checkauthorize: function () {
            var that = this;
            wx.getSetting({
                success(res) {
                    // 没有授权过的，进入如下
                    if (!res.authSetting['scope.userInfo']) {
                        that.authorizemodal();
                    }else{
                        that.setData({
                            isauthorizeModal:false
                        })
                        that.triggerEvent('myevent',{arg:false})
                    }
                }
            })
        },
        // 授权失败，弹窗
        authorizemodal: function () {
            var that = this;
            wx.showModal({
                title: '获取用户信息授权',
                content: '当前功能需授权获取用户信息',
                confirmText: '继续授权',
                confirmColor: '#64c8bc',
                success: function (res) {
                    if (res.confirm) {
                        // console.log("点击去设置")
                        that.authorize();
                    } else if (res.cancel) {
                        // console.log("点击取消")
                        // console.log(res)
                    }

                }
            })
        },
        authorize: function () {
            var that = this;
            wx.openSetting({
                success: function (res) {
                    // console.log("授权不成功")
                    if (!res.authSetting['scope.userInfo']) {
                        that.setData({
                            isauthorizeModal:true
                        })
                        that.triggerEvent('myevent',{arg:true})

                    }else{
                        // console.log("授权成功")
                        wx.login({
                            success: function (res) {
                                if (res.code) {
                                    var logincode = res.code
                                    // 弹窗授权
                                    wx.getUserInfo({
                                        success: function (res) {
                                            // console.log('点击确认授权')
                                            if (res.errMsg == 'getUserInfo:ok') {
                                                var encryptedData = res.encryptedData
                                                var iv = res.iv;
                                                that.setData({
                                                    isauthorizeModal: false
                                                })
                                                that.triggerEvent('myevent',{arg:false})
                                                that.WeixinLogin(logincode, encryptedData, iv);
                                            }

                                        },
                                        fail: function (res) {
                                        }
                                    })
                                } else {
                                    // console.log('登录失败！' + res.errMsg)

                                }
                            }
                        });

                    }

                },
                fail: function () {
                    that.checkauthorize();
                }
            })
        },
        show:function(){
            var that = this;
            wx.getSetting({
                success(res) {
                    // console.log(res)
                    // 没有授权过的，进入如下
                    if (!res.authSetting['scope.userInfo']) {

                        var modalarg  = wx.getStorageSync('modalarg')
                        console.log(modalarg)
                        if(modalarg == ''){   //没缓存，调接口
                            wx.request({
                                url: 'https://try.fishqc.com/getAb', //请求接口地址
                                data: {},
                                method:'GET',
                                header: {
                                    'content-type': 'application/x-www-form-urlencoded', // 默认值
                                    'skey': wx.getStorageSync('getstoreskey')
                                },
                                success: function(res) {
                                    if(res.data.code == 200){ 

                                        if(res.data.data.abstatus == 1){ //abstatus为1时，授权弹窗开启

                                            wx.setStorageSync('modalarg',res.data.data)  //设置已经调用过该接口的标识缓存
                                            if(res.data.data.abvalue  == 'a'){  //abvalue为a时，授权弹窗
                                                wx.getSetting({
                                                    success(res) {

                                                        // 没有授权过的，进入如下
                                                        if (!res.authSetting['scope.userInfo']) {
                                                            that.setData({
                                                                isauthorizeModal:true
                                                            })
                                                            that.triggerEvent('myevent',{arg:true})
                                                        }
                                                    }
                                                })

                                            }
                                        }

                                    }

                                }
                            })

                        }else{  //有缓存，直接判断
                            if(modalarg.abstatus == 1){ //abstatus为1时，授权弹窗开启
                                if(modalarg.abvalue  == 'a'){   //abvalue为a时，授权弹窗
                                    console.log('有缓存')
                                    wx.getSetting({
                                        success(res) {

                                            // 没有授权过的，进入如下
                                            if (!res.authSetting['scope.userInfo']) {
                                                that.setData({
                                                    isauthorizeModal:true
                                                })
                                                that.triggerEvent('myevent',{arg:true})
                                            }
                                        }
                                    })
                                }
                            }
                        }
                    }else{

                        that.setData({
                            isauthorizeModal:false
                        })
                        that.triggerEvent('myevent',{arg:false})
                    }
                }
            })

        },
        WeixinLogin: function (logincode, encryptedData, iv) {
            var that = this;
            var arg = wx.getStorageSync('modalarg')?wx.getStorageSync('modalarg'):''
            var channel = wx.getStorageSync('channel')?wx.getStorageSync('channel'):''
            console.log('channel test')
            console.log(channel)
            wx.request({
                url: 'https://product.fishqc.com/Api/WeixinLogin/weiXinMini',
                data: {
                    code: logincode,
                    iv: iv,
                    encryptedData: encryptedData,
                    device_id:arg.deviceId,
                    abtest:'1',
                    is_login:0,
                    channel:channel

                },
                method: 'POST',
                header: {
                    'content-type': 'application/x-www-form-urlencoded' // 默认值
                },
                success: function (res) {

                }
            })
        }
    }
})