小程序中首次获取位置权限失败后，主动引导用户授权方案

onLoad() {

    wx.getLocation({

      type: "wgs84",

      success(res) {

        //如果首次授权成功则执行地图定位操作，具体实现代码与此文无关，就不贴出

      },

      fail: function(res) {

        //授权失败

        wx.getSetting({

          //获取用户的当前设置，返回值中只会出现小程序已经向用户请求过的权限

          success: function(res) {

            //成功调用授权窗口

            var statu = res.authSetting;

            if (!statu["scope.userLocation"]) {

              //如果设置中没有位置权限

              wx.showModal({

                //弹窗提示

                title: "是否授权当前位置",

                content:

                  "需要获取您的地理位置，请确认授权，否则地图功能将无法使用",

                success: function(tip) {

                  if (tip.confirm) {

                    wx.openSetting({

                      //点击确定则调其用户设置

                      success: function(data) {

                        if (data.authSetting["scope.userLocation"] === true) {

                          //如果设置成功

                          wx.showToast({

                            //弹窗提示

                            title: "授权成功",

                            icon: "success",

                            duration: 1000

                          });

                          wx.getLocation({

                            //通过getLocation方法获取数据

                            type: "wgs84",

                            success(res) {

                              //成功的执行方法

                            }

                          });

                        }

                      }

                    });

                  } else {

                    //点击取消按钮，则刷新当前页面

                    wx.redirectTo({

                      //销毁当前页面，并跳转到当前页面

                      url: "index" //此处按照自己的需求更改

                    });

                  }

                }

              });

            }

          },

          fail: function(res) {

            wx.showToast({

              title: "调用授权窗口失败",

              icon: "success",

              duration: 1000

            });

          }

        });

      }

    });

  }

原版https://www.cnblogs.com/liuwei54/p/10911091.html