Calendar calendar=Calendar.getInstance();

SimpleDateFormat simpleDateFormat=new SimpleDateFormat("yyyy年MM月dd日");

String[] str1=new String[]{"Error","日","一","二","三","四","五","六"};

textView.setText("[公历]\t" + simpleDateFormat.format(new Date()) + "\t星期" + str1[calendar.DAY_OF_WEEK]);

Android获取日期及星期的方法