title: Fragment activity catch onKeyDown and use in fragment
body: <p>I have Fragment activity with pager:</p>
  
  <pre><code>List&lt;Fragment&gt; fragments = new Vector&lt;Fragment&gt;();
      fragments.add(Fragment.instantiate(this, PastEventListFragment.class.getName(),bundle));
      fragments.add(Fragment.instantiate(this, EventListFragment.class.getName(),bundle));
  
      this.mPagerAdapter  = new EventPagerAdapter(super.getSupportFragmentManager(), fragments);
      //
      ViewPager pager = (ViewPager)super.findViewById(R.id.viewpager1);
  
      pager.setAdapter(this.mPagerAdapter);
      pager.setCurrentItem(1);
  </code></pre>
  
  <p>I catch onKeyDown event :</p>
  
  <pre><code>@Override
  public boolean onKeyDown(int keyCode, KeyEvent event) {
      if (keyCode == KeyEvent.KEYCODE_MENU) {
  
      }
      return super.onKeyDown(keyCode, event);
  }
  </code></pre>
  
  <p>The Question is:
  How to use event in all fragments i have instantiated in this activity . Thanks</p>