迫使角摘要 [英] Forcing a digest in Angular

问题描述

在用户操作后，某些时候，我想引起消化发生的，所以UI反映了数据模型支持它的变化。

At some point after a user action I would like to cause a digest to occur, so the UI reflects a change in the data-model backing it.

我有一个回调（异步）

据我所知， $范围才有意义，在控制器的情况下。我可以通过执行实现同样的效果 $适用（）在 $ rootScope ？

I understand that $scope only makes sense in the context of a controller. Can I achieve the same effect by performing $apply() on the $rootScope?

我见过code，用来检查 $$阶段或类似的相关避免摘要错误，哪些检查，我应该为了安全地触发摘要执行？

I have seen code that checks for $$phase or similar related to avoiding digest errors, what checks should I perform in order to trigger a digest safely?

推荐答案

看到这个答案：<一href=\"http://stackoverflow.com/questions/17868889/running-apply-on-rootscope-vs-any-other-scope\">Running在$ rootScope $适用VS任何其他范围

您可以致电 $ rootScope。$适用（）控制器之外（即服务），以引发消化循环。

You can call $rootScope.$apply() outside of a controller (i.e. in a service) in order to trigger a digest loop.

另外，你可以考虑使用 $广播和 $关于来的通知发送到您的应用程序的其它部分当事情需要刷新。 （请参见理解角的$范围和$ rootScope事件系统$冒出， $广播和$上）

Alternatively, you could consider using $broadcast and $on to send a notification to other parts of your app when something needs refreshing. (See Understanding Angular’s $scope and $rootScope event system $emit, $broadcast and $on)

// in a service
$rootScope.$broadcast('myCustomEvent', {
  someProp: 'foobar'
  // other data
});

// in a controller or another service
$scope.$on('myCustomEvent', function (event, data) {
  console.log(data);
  // do something with this event
});

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