我已经设置了一个RXJS可观察对象。我有两个组件订阅服务工厂中的主题。如何取消订阅选定的组件到主题，以便按下按钮停止收听主题广播？
查看我的jsfiddle退订应用程序
我的代码：
<div ng-app="myApp" ng-controller="mainCtrl">
<script type="text/ng-template" id="/boxa">
BoxA - Message Listener: </br>
<strong>{{boxA.msg}}</strong></br>
<md-button ng-click='boxA.unsubcribe()' class='md-warn'>Unsubscribe A</md-button>
</script>
<script type="text/ng-template" id="/boxb">
BoxB - Message Listener: </br>
<strong>{{boxB.msg}}</strong></br>
<md-button ng-click='boxB.unsubcribe()' class='md-warn'>Unsubscribe B</md-button>
</script>
<md-content class='md-padding'>
<h3>
{{name}}
</h3>
<label>Enter Text To Broadcast</label>
<input ng-model='msg'/></br>
<md-button class='md-primary' ng-click='broadcastFn()'>Broadcast</md-button></br>
<h4>
Components
</h4>
<box-a></box-a></br>
<box-b></box-b>
</md-content>
</div><!--end app-->
var app = angular.module('myApp', ['ngMaterial']);
app.controller('mainCtrl', function($scope,msgService) {
$scope.name = "Observer App Example";
$scope.msg = 'Message';
$scope.broadcastFn = function(){
msgService.broadcast($scope.msg);
}
});
app.component("boxA", {
bindings: {},
controller: function(msgService) {
var boxA = this;
boxA.msgService = msgService;
boxA.msg = '';
boxA.msgService.subscribe(function(obj) {
console.log('Listerner A');
boxA.msg = obj;
});
boxA.unsubscribe=function(){
};
},
controllerAs: 'boxA',
templateUrl: "/boxa"
})
app.component("boxB", {
bindings: {},
controller: function(msgService) {
var boxB = this;
boxB.msgService = msgService;
boxB.msg = '';
boxB.msgService.subscribe(function(obj) {
console.log('Listerner B');
boxB.msg = obj;
});
boxB.unsubscribe=function(){
};
},
controllerAs: 'boxB',
templateUrl: "/boxb"
})
app.factory('msgService', ['$http', function($http){
var msgSubject = new Rx.ReplaySubject();
return{
subscribe:function(subscription){
msgSubject.subscribe(subscription);
},
broadcast:function(msg){
console.log('success');
msgSubject.onNext(msg);
}
}
}])
根据我上面的评论，新的RxJs 5 Beta现在从订阅. dispos（）更改为订阅.取消订阅（）请参考这里https://github.com/ReactiveX/rxjs/blob/master/MIGRATION.md#subscription-dispose-is-now-unsubscribe
请看更新的小提琴：这里
订阅函数返回一个Disposable来使用，您必须首先从工厂返回订阅（第60行）：
subscribe: function(subscription){
return msgSubject.subscribe(subscription);
}
这将允许您将订阅存储在每个控制器中，以便将来使用。（第21行
var boxASubscription = boxA.msgService.subscribe(function(obj) {
console.log('Listerner A');
boxA.msg = obj;
});
然后，当您想取消订阅时，您可以调用订阅上的disple方法：
boxA.unsubscribe = function(){
console.log('Unsubscribe A');
boxASubscription.dispose();
};
n. b.
由于某种原因，我无法让您的演示与一起使用
