title: "Exported activity does not require permission" when attempting to launch from a URI
body: <p>I am trying to launch an Android app from a URI using <a href="https://stackoverflow.com/questions/2958701/launch-custom-android-application-from-android-browser">this SO question</a> as a reference. </p>
  
  <p>I have a manifest file with the following declared activity: </p>
  
  <pre><code>&lt;activity android:name=".MainActivity"&gt;
      &lt;intent-filter&gt;
          &lt;action android:name="android.intent.action.VIEW" /&gt;
          &lt;data android:scheme="http" android:host="example.com" /&gt;
      &lt;/intent-filter&gt;
  &lt;/activity&gt;
  </code></pre>
  
  <p>I am attempting to launch MainActivity with the <a href="http://example.com" rel="nofollow noreferrer">http://example.com</a> link. My issue is that I get the warning</p>
  
  <pre><code>"exported activity does not require permission"
  </code></pre>
  
  <p>I have looked at other SO questions that report this same warning and all solutions don't seem to work. </p>
  
  <p>How do I write the activity intent-filter correctly to avoid the warning? </p>
  
  <p>Thanks</p>