来高手写代码，，怎么用ProgressDialog实现请稍后的功能

Question

mydialog=ProgressDialog.show(
                ProgressActivity.this,
                "加载中...",
                "请稍等片刻...",
                true
            );            
            new Thread(){
                public void run(){
                    try{
                        //mtextview1.setText("请稍后");
                        //sleep(3000);
                    }catch(Exception e){
                        e.printStackTrace();
                    }finally{
                        mydialog.dismiss();
                    }
                }
            }.start();从A页面  跳转到B 页面，出现请稍后，貌似是handler用法。。不大会
需要代码

Answer 1

ProgressDialog waitingForRegisterPd =  new ProgressDialog(RegisterActivity.this);
waitingForRegisterPd.setMessage("请稍等");
waitingForRegisterPd.setCancelable(true);
waitingForRegisterPd.setProgressStyle(ProgressDialog.STYLE_SPINNER);
waitingForRegisterPd.show();