angularjs – Ionic / Angular JS – 从Reverse Geolocation获取

这是我使用的代码：

.controller('PetitionsCtrl',function($scope,$cordovaGeolocation,$cordovaCamera,$log,$ionicLoading,$http,$timeout,$compile,Upload) {


  $scope.getLocation = function() {
    $ionicLoading.show({
      templateUrl: 'loading.html',hideOnStateChange: true
    });
      var posOptions = {timeout: 15000,enableHighAccuracy: true};
      $cordovaGeolocation
      .getCurrentPosition(posOptions)
      .then(function (position) {
        $scope.lat = position.coords.latitude;
        $scope.lng = position.coords.longitude;
        $scope.pLat = {value: $scope.lat};
        $scope.pLng = {value: $scope.lng};

        var geocoder = new google.maps.Geocoder();
        var latlng = new google.maps.LatLng($scope.lat,$scope.lng);
        var request = {
          latLng: latlng
        };

        geocoder.geocode(request,function(data,status) {
          if (status == google.maps.GeocoderStatus.OK) {
            if (data[0] != null) {
              $scope.$apply(function () {
                $scope.pStreet = {value: data[0].address_components[1].long_name};
                $scope.pNumber = {value: data[0].address_components[0].long_name};
                $scope.pCity = {value: data[0].address_components[2].long_name};
                $scope.pAddress = {value: data[0].formatted_address};
                setTimeout(function () {
                  $ionicLoading.hide();
                },500);
              });
            } else {
              $log.log("Adresa indisponibila");
              setTimeout(function () {
                $ionicLoading.hide();
              },500);
            }
          }
        })
      });
    };
})

以下是Google的示例回复：

{
   "results" : [
      {
         "address_components" : [
            {
               "long_name" : "1600","short_name" : "1600","types" : [ "street_number" ]
            },{
               "long_name" : "Amphitheatre Pkwy","short_name" : "Amphitheatre Pkwy","types" : [ "route" ]
            },{
               "long_name" : "Mountain View","short_name" : "Mountain View","types" : [ "locality","political" ]
            },{
               "long_name" : "Santa Clara County","short_name" : "Santa Clara County","types" : [ "administrative_area_level_2",{
               "long_name" : "California","short_name" : "CA","types" : [ "administrative_area_level_1",{
               "long_name" : "United States","short_name" : "US","types" : [ "country",{
               "long_name" : "94043","short_name" : "94043","types" : [ "postal_code" ]
            }
         ],"formatted_address" : "1600 Amphitheatre Parkway,Mountain View,CA 94043,USA","geometry" : {
            "location" : {
               "lat" : 37.4224764,"lng" : -122.0842499
            },"location_type" : "ROOFTOP","viewport" : {
               "northeast" : {
                  "lat" : 37.4238253802915,"lng" : -122.0829009197085
               },"southwest" : {
                  "lat" : 37.4211274197085,"lng" : -122.0855988802915
               }
            }
         },"place_id" : "ChIJ2eUgeAK6j4ARbn5u_wAGqWA","types" : [ "street_address" ]
      }
   ],"status" : "OK"
}

如何更改我的代码,以便在读取值之前检查“类型”值,如果不可用则将其留空.为了更加特别,而不是使用数据[0] .address_components [0] .long_name来获取街道号码,我想知道“类型”值是“street_number”.