参见英文答案 > SimpleDateFormat ignoring month when parsing                                    4个
>            Getting wrong month when using SimpleDateFormat.parse                                    3个
>            Localdate.format, format is not applied                                    2个
在Android中使用日期选择器它正在挑选错误的日期
日期选择器对话框选择日期为2018/55/10
它有时会选择正确的日期,但大部分时间它选择了错误的日期

Calendar myCalendar = Calendar.getInstance();
DatePickerDialog.OnDateSetListener date = new DatePickerDialog.OnDateSetListener() {

        @Override
        public void onDateSet(DatePicker view, int year, int monthOfYear,
                              int dayOfMonth) {
            // TODO Auto-generated method stub
            myCalendar.set(Calendar.YEAR, year);
            myCalendar.set(Calendar.MONTH, monthOfYear);
            myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
            updateLabel();
        }

    };
    exp.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            DatePickerDialog d=new DatePickerDialog(createjobs.this, R.style.CalendarDatePickerDialog, date, myCalendar
                    .get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
                    myCalendar.get(Calendar.DAY_OF_MONTH));
            d.getDatePicker().setMinDate(System.currentTimeMillis() - 1000);
            d.show();
        }
    });

private void updateLabel() {
    String myFormat = "yyyy/mm/dd"; //In which you need put here
    SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);
    exp.setText(sdf.format(myCalendar.getTime()));
}

解决方法:

您在日期格式中犯了一个常见错误：mm是分钟,使用MM来获取月份.