change android action bar title

Change with customized view

  // Set the custom section of the ActionBar with Browse and Search.

  ActionBar actionBar = getActionBar();

  View mActionBarView = getLayoutInflater().inflate(R.layout.actionbar_compat, null);

  actionBar.setCustomView(mActionBarView);

  actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);

Set the title text and icon 

getActionBar().setDisplayHomeAsUpEnabled(true);

getActionBar().setTitle(R.string.menu_done);

getActionBar().setIcon(R.drawable.btn_done);