来自datepicker android的getdate

Question

我想从android中的datepicker小部件获取日期我试过这个

Date date1= (Date) new Date
   (dpBirthDate.getYear(), dpBirthDate.getMonth(), dpBirthDate.getDayOfMonth());
date1  = (Date) new SimpleDateFormat("yyyy-MM-dd").parse(date1.toString());

但我得到这样的日期mon 7 dec 2011 time...我想要的是将yyyy-MM-dd其存储在数据库中的格式.

我也试着连续这样的年月日,但问题是例如今天 2011-12-7那天应该是07才有效

请问你能帮帮我吗.

Answer 1

我用这个:

    /**
 * 
 * @param datePicker
 * @return a java.util.Date
 */
public static java.util.Date getDateFromDatePicker(DatePicker datePicker){
    int day = datePicker.getDayOfMonth();
    int month = datePicker.getMonth();
    int year =  datePicker.getYear();

    Calendar calendar = Calendar.getInstance();
    calendar.set(year, month, day);

    return calendar.getTime();
}

Answer 2

您应该使用SimpleDateFormat.format将该Date对象转换为a String,就像这样

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String dateString = sdf.format(date1);

我想你只是倒退了.您需要使用format从Date到String,以及parse从String转到Date.

Answer 3

我知道这很旧，但我很难找到它。所以为了后人

场景：视图需要 yyyy-mm-dd 格式的日期

    date_field = (EditText)findViewById(R.id.input_date);
        date_field.setFocusable(false); // disable editing of this field
        date_field.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(final View v) {
                chooseDate();
            }
        });

 private void chooseDate() {
        final Calendar calendar = Calendar.getInstance();
        final int year = calendar.get(Calendar.YEAR);
        final int month = calendar.get(Calendar.MONTH);
        final int day = calendar.get(Calendar.DAY_OF_MONTH);
        DatePickerDialog datePicker =
            new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
                @Override
                public void onDateSet(final DatePicker view, final int year, final int month,
                                      final int dayOfMonth) {

                    @SuppressLint("SimpleDateFormat")
                    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
                    calendar.set(year, month, dayOfMonth);
                    String dateString = sdf.format(calendar.getTime());

                    date_field.setText(dateString); // set the date
                }
            }, year, month, day); // set date picker to current date

        datePicker.show();

        datePicker.setOnCancelListener(new DialogInterface.OnCancelListener() {
            @Override
            public void onCancel(final DialogInterface dialog) {
                dialog.dismiss();
            }
        });
    }

希望这对某人有帮助