i am new to angulerJS, so have no idea on how to add multi-select Checkbox dropdown list.
Here is my partial html that show multi-select. I want it to be in shape of dropdown with checkbox as shown in the pic below after code.

<select id="example-getting-started" class="multiselect" data-placeholder="Select User Groups" ng-model="groupselection" ng-options="group as group for group in groups" multiple="multiple" multiselect-dropdown />

And here is my controller full code that populate the multi-select

app.controller('MyObjectsAddSelectedController',
    ['$http', '$scope', '$modalInstance','$modal', '$translate', '$location', '$window', '$anchorScroll', 'config', 'ApiService', 'Flash', 'user_id', 'userObjects',
        function($http, $scope, $modalInstance, $modal, $translate, $location,$window, $anchorScroll, config, ApiService, Flash, user_id, userObjects) {

            $scope.user_id = null;
            $scope.notGroup = false;
            $scope.formProcessing = false;
            $scope.leadUrl = config.leadUrl;            
            $scope.groups=[];
             
            
            var init = function() {
                $scope.groups=[];
                $scope.user_id = user_id;
                //$scope.userObjects = userObjects;
                $('#loadingDiv').show();
                $http.get(config.api.url + '/get_user_group_name/' + $scope.user_id).then(function (response) {
                    if(response.data.error == 'not_group'){
                        $scope.notGroup = true;
                    }else {
                        $scope.notGroup = false;
                        angular.forEach(response.data, function (value, key) {
                            $scope.groups[key] = value;

                        });
                    }

                });
                if($('#loadingDiv').hide()){
                    setTimeout(function () {
                        $("#ob_hier").css("display", "block");
                    }, 1100);
                }
            };            
            //init controller
            init();
        }]);

I want to know, how i can achieve following kind of multi-select checkbox dropdown.

And how to get the selected groups(checkbox) values after in the controller

the application is made in anguler1, bootstrap3.

Note: in the project all files are manually included. no package json etc