title: Code to launch external app explicitly
body: <p>From one of my apps, I'm trying to launch another. I want to use an explicit intent.</p>
  
  <pre><code>ComponentName cn = new ComponentName("com.myOtherApp", "OtherAppActivity");
  Intent intent = new Intent();
  intent.setComponent(cn);
  context.startActivity(intent);
  </code></pre>
  
  <p>When I run that code, however, it asks if I've declared that activity in my manifest. However, when I put the following into the manifest, I get the same error:</p>
  
  <pre><code>&lt;activity android:name="com.myOtherApp.OtherAppActivity"&gt;
  &lt;/activity&gt;
  </code></pre>
  
  <p>What am I doing wrong?</p>
  
  <p>Thanks</p>