$ watch angularjs未检测到自动填充inpud

Question

我有一种地址形式，其中有一个来自googleMaps的输入自动填充功能。当我选择一个地址时，其余的输入都会被填充。这种形式中的两种是纬度和经度。

我希望当我输入地址时，服务$ watch会检测此值并刷新地图。

注意：如果我在该字段中写入，服务$ watch会检测值，但我想写入地址并获取此值。

我的代码表格地址：

                                <input vs-google-autocomplete="{ types: ['address'] }"
                                       vs-autocomplete-validator="vs-street-address"

                                       ng-model="streetNumber[a.count].name"
                                       vs-place="streetNumber[a.count].place"
                                       vs-place-id="streetNumber[a.count].components.placeId"
                                       vs-street-number="streetNumber[a.count].components.streetNumber"
                                       vs-street="streetNumber[a.count].components.street"
                                       vs-city="streetNumber[a.count].components.city"
                                       vs-state="streetNumber[a.count].components.state"
                                       vs-country-short="streetNumber[a.count].components.countryCode"
                                       vs-country="streetNumber[a.count].components.country"
                                       vs-post-code="streetNumber[a.count].components.postCode"
                                       vs-latitude="streetNumber[a.count].components.location.lat"
                                       vs-longitude="streetNumber[a.count].components.location.long"

                                       type="text"
                                       name="streetNumber"
                                       id="streetNumber"
                                       class="form-control"
                                       placeholder="Enter full address (street number, street, ...)">

                                <input type="text" id="user_address_{{ ::address.count }}_latitude" name="user[address][{{ ::address.count }}][latitude]"
                                       value="{{streetNumber[a.count].components.location.lat}}" ng-model="latitude" class="form-control">

                                <input type="text" id="user_address_{{ ::address.count }}_longitude" name="user[address][{{ ::address.count }}][longitude]"
                                       ng-model="longitude" value="{{streetNumber[a.count].components.location.long}}" class="form-control">

                        <ui-gmap-google-map center='map.center' zoom='map.zoom'></ui-gmap-google-map>

AngularJS：

app.controller("testCtrl",function ($scope) {
        $scope.map = { center: { latitude: 40.37464, longitude: -3.7319700000000466 }, zoom: 16 };
        $scope.address = {
            count: -1
        };

        $scope.$watch('longitude', function(newLongitude) {
            alert('newLongitude');
        }, true);

        $scope.$watch('latitude', function(newLatitude) {
            if (!angular.isUndefined(newLatitude)){
                $scope.map['center']['latitude'] = newLatitude;
            }
        }, true);


    });