android action bar progress

setContentView前调

        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);

显示progress

setProgressBarIndeterminateVisibility(true);

隐藏progress

                setProgressBarIndeterminateVisibility(false);

一般常用到获取列表数据的activity里。

注意：用上面的代码前提是

extends ActionBarActivity