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用线程控制dialog的呈现时间，思路非常easy，直接show代码了，我也是为了方便自己记录

private void showProgressDialog() {	pDialog = new ProgressDialog(mContext);	pDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);	pDialog.setProgress(100);	pDialog.setMessage("请稍等一秒...");	pDialog.setIndeterminate(false);	pDialog.show();	WindowManager.LayoutParams lp = pDialog.getWindow().getAttributes();	lp.gravity = Gravity.CENTER;	Window win = pDialog.getWindow();	win.setAttributes(lp);	// 仅仅呈现1s	new Thread(new Runnable() {		@Override		public void run() {			long startTime = System.currentTimeMillis();			int progress = 0;			while (System.currentTimeMillis() - startTime < 1000) {				try {					progress += 10;					pDialog.setProgress(progress);					Thread.sleep(100);				} catch (InterruptedException e) {					pDialog.dismiss();				}			}			pDialog.dismiss();		}	}).start();}