Question

我正在尝试运行这个小代码来返回一个8位integer，以便稍后在for-loop中用作搜索功能。问题是它不会返回searchDateToday的任何值。我错过了什么吗？

final Calendar cal = Calendar.getInstance();
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd");
DateToday = formatter.format(cal.getTime()); // YYYYMMDD form -
                                             // Example: 20111010
                                             // = October 10,
                                             // 2011

int searchDateToday = Integer.parseInt(DateToday);

Answer 1

您忘记使用Date对象：

final Calendar cal = Calendar.getInstance();
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd");
DateToday = formatter.format(new Date(cal.getTime())); 

// YYYYMMDD form -// Example: 20111010 // = October 10, // 2011

int searchDateToday = Integer.parseInt(DateToday);

Answer 2

用它来获取今天的日期

String currentDate = DateFormat.getDateInstance().format(new Date());
tv_date.setText(currentDate);   // tv_date is TextView

Android：日历没有返回值？

2 个答案: