1、启用窗口特征，启用带进度和不带进度的进度条
requestWindowFeature(Window.FEATURE_PROGRESS);
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
2、将两种进度条显示出来
setProgressBarVisibility(true);
setProgressBarIndeterminate(true);
setProgress(600);
原文：http://www.cnblogs.com/cheney1006/p/5738582.html