titlebar 标题栏显示进度条

@Override public void onCreate(Bundle icicle) {     super.onCreate(icicle);     requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);     setContentView(R.layout.your_layout); }

然后你可任意调用

 setProgressBarIndeterminateVisibility(true);  setProgressBarIndeterminateVisibility(false);