Start another app using Intents and Intent filters
<p>So what I am is pretty simple, but I can't figure it out.  I am trying to start another app using an intent and intent filter. </p>

<p>In my first app when a user clicks on a button I want it to start another activity in a separate app. This is the intent I am using in the first app with the button.</p>

<pre><code>Intent notificationIntent = new Intent("foo");
</code></pre>

<p>In my second app I am trying to catch that intent by defining an Intent filter in the manifest like this:</p>

<pre><code>   &lt;activity
       android:name=".MainActivity"
       android:label="@string/app" &gt;
       &lt;intent-filter&gt;
         &lt;action android:name="android.intent.action.MAIN" /&gt;
         &lt;action android:name="foo" /&gt;

         &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
       &lt;/intent-filter&gt;
   &lt;/activity&gt;
</code></pre>

<p>Shouldn't the MainActivity catch the intent and start up?  It doesnt seem to be working. </p>
