title: My homeAsUp button is not working in android
body: <p>I have created a navigation drawer activity, from the main activity i launch 2 different activities. In both of these activities i have used actionBar.setDisplayHomeAsUpEnabled(true); to enable homeasup button. how do i find the ids of these home buttons so that i can work with them in onOptionsItemSelected? Here's my method:</p>
  
  <pre><code>@Override
      public boolean onOptionsItemSelected(MenuItem item) {
          // Handle action bar item clicks here. The action bar will
          // automatically handle clicks on the Home/Up button, so long
          // as you specify a parent activity in AndroidManifest.xml.
          int id = item.getItemId();
  
          //noinspection SimplifiableIfStatement
          if (id == R.id.action_settings) {
              Toast.makeText(this, "pressed1", Toast.LENGTH_SHORT).show();
              return true;
          }
          else if (id == R.id.home){
              Toast.makeText(this,"pressed2",Toast.LENGTH_SHORT).show();
              finish();
          }
          else{
              Toast.makeText(this,R.id.homeAsUp + " " + id + " " + item,Toast.LENGTH_SHORT).show();
          }
  
          return super.onOptionsItemSelected(item);
      }
  </code></pre>
  
  <p>R.id.home doesnt seem to work. The toast gives a correct output for all other actions but for home button the item string in toast shows: com.android.internal.view.menu.ActionMenuItem@b8d9a09. </p>