Question

我想在从android日期选择器中选择日期时显示日期格式01-01-2014 但我得到格式1-1-2014，因为我在搜索日期时遇到问题

这是我的代码

// On click Of Button
@Override
public void onClick(View v) {

    switch (v.getId()) {        
    case R.id.btnAESubmit:
        saveData();
        break;
    case R.id.lblAEDate:
        showDialog(AE_DT_DIALOG_ID);
        break;
    }
}

// to create Date dialog
protected Dialog onCreateDialog(int id) {
    switch (id) {
    case AE_DT_DIALOG_ID:
        final Calendar calendar = Calendar.getInstance();
        int yy = calendar.get(Calendar.YEAR);
        int mm = calendar.get(Calendar.MONTH);
        int dd = calendar.get(Calendar.DAY_OF_MONTH);

        // set date picker as current date
        return new DatePickerDialog(this, datePickerListener, yy, mm, dd);
    }
    return null;
}

// DAte Listener Call on date dialog call
private DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() {
    // when dialog box is closed, below method will be called.
    public void onDateSet(DatePicker view, int selectedYear, int selectedMonth, int selectedDay) {
        year = selectedYear;
        month = selectedMonth;          
        day = selectedDay;
        StringBuilder Date;         
        Date = new StringBuilder().append(day).append("-").append(month + 1).append("-").append(year).append(" ");

        // set selected date into lbl View
        lblAEDate.setText(Date);
    }
};

如何格式化所选日期01-01-2014？

Answer 1

String formattedDay = (String.valueOf(day));
String formattedMonth = (String.valueOf(month));

if(day < 10)
{
    formattedDay = "0" + day;
}

if(month< 10)
{
    formattedMonth = "0" + Month;
}

将此代码放在StringBuilder Date;之前，然后移除year = selectedYear; month = selectedMonth; day = selectedDay;

然后将formattedDay，formattedMonth和year传递给您的StringBuilder。

希望它适合你。

Answer 2

public void onDateSet(DatePicker view, int yy, int mm, int dd) {
    populateSetDate(yy, mm + 1, dd);
}

public void populateSetDate(int year, int month, int day) {
    String formattedDay = (String.valueOf(day));
    String formattedMonth = (String.valueOf(month));

    if (day < 10) {
        formattedDay = "0" + day;
    }

    if (month < 10) {
        formattedMonth = "0" + month;
    }

    btnDate.setText(formattedDay + "-" + formattedMonth + "-" + year);
}

Answer 3

这里我接受了接受的答案

private DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() {
    // when dialog box is closed, below method will be called.
    public void onDateSet(DatePicker view, int selectedYear, int selectedMonth, int selectedDay) {          
        String dt;
        year = selectedYear;
        month = selectedMonth + 1;
        day = selectedDay;
        try {
            dt = day + "-" + month + "-" + year;

            SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy"); // Set your date format
            Date currentDt = null;          
            currentDt = sdf.parse(dt);
            String d = sdf.format(currentDt);
            // set selected date into lbl View
            lblDate.setText(d);
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }       
    }
};

Answer 4

试试这个，您可以将日期格式设置为您想要的任何内容，请查看SimpleDateFormat JavaDoc以获取示例。

Calendar calendar = Calendar.getInstance();
SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy");
String test = dateFormat.format(calendar.getTime());
Log.e("TEST", test);

如何在android Datepicker中更改日期日历格式？

4 个答案: