定时器的指令通讯的角度指令

问题描述

我从，并且需要使计时器能够使stop方法上升到位于其中的按钮的父指令父模板.

I have taken the ideas from AngularJS - How to make a stop watch starting from 00:00:00 format and have a need to have the timer be able to have a stop method go up to the parent directive for a button that is in the parent template.

<parent-container>
  <timer-container />
  <button ng-click="??.stopTimer()">Stop</button>
</parent-container>

如果在计时器容器中有一个方法可以停止计时器，如何使父容器和计时器容器进行交互，以便在单击按钮时将调用stopTimer方法?

If there is a method in the timer-container that will stop the timer, how do I get the parent container and timer container to interact so that when the button is clicked, the stopTimer method will be invoked?

推荐答案

查看 $ emit 和 $ broadcast 函数.$ emit将在层次结构中发送事件，而$ broadcast将在层次结构中发送事件.您可以使用 $ on 函数添加侦听器.

Look into the $emit and $broadcast functions. $emit will send an event up the heirarchy and $broadcast sends the event down the heirarchy. You can add a listener using the $on function.

如果两个作用域之间没有直接关系，则可以将$ rootScope注入两个控制器中，并在那里处理事件.

If there is no direct relation between the two scopes, you can inject $rootScope into both controllers and handle the event there.

有关更完整的示例，请检查我在评论中链接的答案.

For a more complete example, check the answer I linked in my comment.

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