title: Softkeyboard in Fragment does not show for edittext
body: <p>I have a simple application with two fragments. The right fragment is being replaced. An edittext inside has requestfocus, but does not show the keyboard. </p>
  
  <p>On Android 4.2.2 it works fine, on 2.3.x it does not, neither in emulator nor on real device. On the emulator I can type with my windows keyboard although the soft keyboard is not showing.</p>
  
  <p>I have not hidden the keyboard on purpose. Showing the keyboard with following code only works for 4.2.x.</p>
  
  <pre><code>InputMethodManager imgr = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
  imgr.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);
  </code></pre>
  
  <p>Any hint?</p>