title: Android Empty Activity and Blank Activity
body: <p>I am trying to make an android project and there are many types of activities,
  from there I see blank activity and empty activity.</p>
  
  <p>Does anyone know the difference between the two?</p>
  
  <p>Blank activity is not creating main_activity.xml but is created by empty activity.</p>
  
  <p>In empty activity, I am unable to add EditText Field, Does anyone know why I am not able to add it? Error says :</p>
  
  <pre><code>Exception raised during rendering: java.lang.System.arraycopy([CI[CII)V
  Exception details are logged in Window &gt; Show View &gt; Error Log
  </code></pre>
  
  <p>And when I open error log, there is no error</p>