title: intent-filter for knowing when some app is being opened?
body: <p>I would like to know which intent-filter use for listen when some app is being opened from my BroadcastReceiver.</p>
  <pre><code>&lt;intent-filter&gt;
      &lt;action android:name=&quot;android.intent.action.BOOT_COMPLETED&quot; /&gt;
      &lt;action android:name=&quot;android.net.conn.CONNECTIVITY_CHANGE&quot; /&gt;
      &lt;action android:name=&quot;android.intent.action.PACKAGE_REMOVED&quot; /&gt;
  &lt;/intent-filter&gt;
  </code></pre>