我有两个控制器，并在它们之间用app.factory函数共享数据。
当单击链接时，第一个控制器在模型数组(pluginsDisplayed)中添加一个小部件。窗口小部件被推入数组，并且此更改反映到视图中(使用ng-repeat显示数组内容)：
<div ng-repeat="pluginD in pluginsDisplayed">
<div k2plugin pluginname="{{pluginD.name}}" pluginid="{{pluginD.id}}"></div>
</div>
该小部件建立在三个指令，k2plugin，删除和调整大小。 remove指令将一个范围添加到k2plugin指令的模板中。当单击所述跨度时，使用Array.splice()删除共享数组中的正确元素。共享阵列已正确更新，但更改不会反映在视图中。但是，当添加另一个元素时，在删除后，视图会正确刷新，并且不会显示先前删除的元素。
我错了什么？你能解释我为什么这不工作吗？
有没有更好的方法来做我想使用AngularJS？
这是我的index.html：
<!doctype html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.5/angular.min.js">
</script>
<script src="main.js"></script>
</head>
<body>
<div ng-app="livePlugins">
<div ng-controller="pluginlistctrl">
<span>Add one of {{pluginList.length}} plugins</span>
<li ng-repeat="plugin in pluginList">
<span><a href="" ng-click="add()">{{plugin.name}}</a></span>
</li>
</div>
<div ng-controller="k2ctrl">
<div ng-repeat="pluginD in pluginsDisplayed">
<div k2plugin pluginname="{{pluginD.name}}" pluginid="{{pluginD.id}}"></div>
</div>
</div>
</div>
</body>
</html>
这是我的main.js：
var app = angular.module ("livePlugins",[]);
app.factory('Data',function () {
return {pluginsDisplayed: []};
});
app.controller ("pluginlistctrl",function ($scope,Data) {
$scope.pluginList = [{name: "plugin1"},{name:"plugin2"},{name:"plugin3"}];
$scope.add = function () {
console.log ("Called add on",this.plugin.name,this.pluginList);
var newPlugin = {};
newPlugin.id = this.plugin.name + '_' + (new Date()).getTime();
newPlugin.name = this.plugin.name;
Data.pluginsDisplayed.push (newPlugin);
}
})
app.controller ("k2ctrl",Data) {
$scope.pluginsDisplayed = Data.pluginsDisplayed;
$scope.remove = function (element) {
console.log ("Called remove on ",this.pluginid,element);
var len = $scope.pluginsDisplayed.length;
var index = -1;
// Find the element in the array
for (var i = 0; i < len; i += 1) {
if ($scope.pluginsDisplayed[i].id === this.pluginid) {
index = i;
break;
}
}
// Remove the element
if (index !== -1) {
console.log ("removing the element from the array,index: ",index);
$scope.pluginsDisplayed.splice(index,1);
}
}
$scope.resize = function () {
console.log ("Called resize on ",this.pluginid);
}
})
app.directive("k2plugin",function () {
return {
restrict: "A",scope: true,link: function (scope,elements,attrs) {
console.log ("creating plugin");
// This won't work immediately. Attribute pluginname will be undefined
// as soon as this is called.
scope.pluginname = "Loading...";
scope.pluginid = attrs.pluginid;
// Observe changes to interpolated attribute
attrs.$observe('pluginname',function(value) {
console.log('pluginname has changed value to ' + value);
scope.pluginname = attrs.pluginname;
});
// Observe changes to interpolated attribute
attrs.$observe('pluginid',function(value) {
console.log('pluginid has changed value to ' + value);
scope.pluginid = attrs.pluginid;
});
},template: "<div>{{pluginname}} <span resize>_</span> <span remove>X</span>" +
"<div>Plugin DIV</div>" +
"</div>",replace: true
};
});
app.directive("remove",function () {
return function (scope,element,attrs) {
element.bind ("mousedown",function () {
scope.remove(element);
})
};
});
app.directive("resize",function () {
scope.resize(element);
})
};
});
每当你在AngularJS之外做一些形式的操作，比如使用jQuery调用Ajax，或者将一个事件绑定到一个像你这样的元素，你需要让AngularJS知道更新自己。这里是你需要做的代码更改：
原文链接：/angularjs/147097.htmlapp.directive("remove",function () {
scope.remove(element);
scope.$apply();
})
};
});
app.directive("resize",function () {
scope.resize(element);
scope.$apply();
})
};
});
这里是文档：https://docs.angularjs.org/api/ng/type/$rootScope.Scope#$apply
