title: how to get Activity's windowToken without view?
body: <p>Now, I try to hide the softkeyboard when user touch outside the keyboard:</p>
  
  <pre><code>((InputMethodManager) getSystemService(INPUT_METHOD_SERVICE))
  .hideSoftInputFromWindow(editView.getWindowToken(),
  InputMethodManager.HIDE_NOT_ALWAYS);
  </code></pre>
  
  <p>I want put the logic in my base activity class, so if it is possible to getWindowToken without View?</p>