TypeError:不能读取未定义的'then'属性

my Service.js

我Service.js

appnService.factory('LocationService', function(){

var currentLocation = {
    latitude:"",
    longitude:""
}

 return {
   GetLocation : function(){
     return navigator.geolocation.getCurrentPosition(function(pos){
            currentLocation.latitude = pos.coords.latitude;
            currentLocation.longitude= pos.coords.longitude;
          return currentLocation;
     });
   }
 };

});

my controller

我的控制器

appne.controller('NewObservationCtrl',function($scope,$state,LocationService) {     
LocationService.GetLocation().then(function(data){
console.log(data);
});
});

But im getting the error

但是我得到了错误

TypeError: Cannot read property 'then' of undefined in controller

TypeError:无法读取控制器中未定义的属性。

Please help

请帮助

1 个解决方案

#1

navigator.geolocation.getCurrentPosition(function() {}) return undefined. If you want promise you must resolve deferred object with position value

navigator.geolocation.getCurrentPosition(函数(){ })返回定义。如果你想要承诺，你必须用位置值来解析递延对象

.factory('LocationService', function ($q) {

var currentLocation = {
    latitude: "",
    longitude: ""
}

return {
    GetLocation: function () {
        var d = $q.defer();
        navigator.geolocation.getCurrentPosition(function (pos) {
            currentLocation.latitude = pos.coords.latitude;
            currentLocation.longitude = pos.coords.longitude;
            d.resolve(currentLocation);
        });
        return d.promise
    }
};

});