title: obfuscates android source by ProGuard(All Activity)
body: <p>I want to obfuscate all my Android App's activities by using <strong>ProGuard</strong> but my ProGuard configuration is not working. </p>
  
  <p>Some of the source code  is being obfuscated but still showing my source on reverse engineering.</p>
  
  <p>My proguard.cfg below:</p>
  
  <pre><code>-overloadaggressively
  -repackageclasses ''
  -allowaccessmodification
  -microedition
  -printseeds
  </code></pre>
  
  <p>I want to obfuscate all code.</p>