title: Communicate Between Components in React Native?
body: <p>Here is my react-native code:</p>
  
  <pre><code>&lt;NavigatorIOS
  ref='nav'
  style={styles.container}
  initialRoute={{
      title: 'List',
      component: TaskList,
      rightButtonTitle: 'new',
      onRightButtonPress: () =&gt; {
          this.refs.nav.push({ 
          title: 'Add Task',
          component: AddTask
          });
      }
  }} /&gt;
  </code></pre>
  
  <p>How can I push some notifications from the AddTask component to the TaskList component?</p>
  
  <p>The docs said that "<em>For communication between two components that don't have a parent-child relationship, you can set up your own global event system.</em>"</p>
  
  <p>So I need set up a global event system?</p>