我有2个视图和3个控制器。
我想要的: 当我点击“settings.html”中的一个按钮时,我想在“settings.js”中更新我的变量'shopMarkers'(变量在“main.js”中定义),我也想在“map”中自动更新一个对象。 js“使用'shopMarkers'的新值更新,以在”map.html“中的地图中显示标记。
Settings.html
<div class="settings">
<div class="row">
<div class="question">
Show shops ?
</div>
<div class="switch">
<input id="toggle-1" class="toggle toggle-round" type="checkbox" ng-click="toggleShops()">
<label for="toggle-1"></label>
</div>
</div>
</div>
Settings.js
'use strict';
/**
* @ngdoc function
* @name frontEndOpenEatApp.controller:SettingsCtrl
* @description
* # SettingsCtrl
* Controller of the frontEndOpenEatApp
*/
angular.module('frontEndOpenEatApp')
.controller('SettingsCtrl', ['$scope', 'shops', function ($scope, shops) {
$scope.toggleShops = function() {
if ($scope.$parent.shopMarkers.length == 0){
shops.getShops().then(
function (data){
createMarkersForShops(data);
}, function (msg) {
console.log(msg);
}
);
}
else {
$scope.$parent.shopMarkers = [];
}
};
var createMarkersForShops = function (shops){
var markers = [];
for (var shop in shops) {
var marker = {
position : new google.maps.LatLng(shops[shop].latitude,shops[shop].longitude),
title : shops[shop].description
};
markers.push(marker);
}
$scope.$parent.shopMarkers = markers;
};
}]);
map.html
<div id="loader" class="animated fadeIn">
<i class="fa fa-cog fa-spin"></i>
</div>
<div id="map-canvas"></div>
map.js
'use strict';
/**
* @ngdoc function
* @name frontEndOpenEatApp.controller:MapCtrl
* @description
* # MapCtrl
* Controller of the frontEndOpenEatApp
*/
angular.module('frontEndOpenEatApp')
.controller('MapCtrl', ['$scope', 'shops', '$timeout', function ($scope, shops, $timeout) {
var map;
/**
* Initialisation de la carte google map.
*/
function initialize () {
var mapOptions = {
zoom: 18,
center: new google.maps.LatLng(48.8879996, 2.2882407)
};
map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
}
$scope.$parent.$watch($scope.shopMarkers, updateShopsMarkers, true);
function updateShopsMarkers (){
for (var shop in $scope.$parent.shopMarkers){
var marker = new google.maps.Marker($scope.$parent.shopMarkers[shop]);
marker.setMap(map);
}
}
}]);
main.js
'use strict';
/**
* @ngdoc function
* @name frontEndOpenEatApp.controller:MainCtrl
* @description
* # MainCtrl
* Controller of the frontEndOpenEatApp
*/
angular.module('frontEndOpenEatApp')
.controller('MainCtrl', ['$scope', function ($scope) {
$scope.shopMarkers = [];
}]);
我希望我能正确描述我的问题。
PS:'商店'是我创建的服务,但我不认为更多地描述它。我使用了一些谷歌地图功能,但这不是问题,你可以忘记这些功能。我的问题实际上是关于从其他子控制器更新的父控制器的$ watch。 最后,我为任何不正确的拼写道歉。
答案 0 :(得分:1)
您可以在$ rootScope中使shopMarkers变量可用,并且如果发生任何更改,它将相应地更改。
所以我建议注入$ rootScope服务并使用$ rootScope定义变量。
即
$rootScope.shopMarkers = [];
&#13;
答案 1 :(得分:0)
您可以使用$scope.broadcast
和$scope.$on
在settings.js
中angular.module('frontEndOpenEatApp')
.controller('SettingsCtrl', ['$scope', 'shops', function ($scope, shops) {
// watch for $scope.shopMarkers changes
$scope.$watch('shopMarkers', function(newValue) {
// broadcast an event telling that $scope.shopMarkers value has been changed
$scope.boradcast('shopMarkersValueChanged', { value: newValue });
});
}]);
在map.js
中angular.module('frontEndOpenEatApp')
.controller('MapCtrl', ['$scope', 'shops', '$timeout', function ($scope, shops, $timeout) {
// listen for event "shopMarkersValueChanged"
$scope.$on('shopMarkersValueChanged', function(event, args) {
// update the value of $scope.shopMarkers with the value sent from "SettingsCtrl"
$scope.shopMarkers = args.value;
});
}]);
答案 2 :(得分:0)
我发现了我的错误:
在map.js中的我写道:
$scope.$parent.$watch($scope.shopMarkers, updateShopsMarkers, true);
解决方案是:
$scope.$parent.$watch('shopMarkers', updateShopsMarkers, true);