Android DatePicker 更改为仅月和年

问题描述

我有一个 DatePickerDialog，我只想查看月份和年份.如何更改此代码?

I have a DatePickerDialog and I want view only Month and Year. How can I change this code?

public void chooseDate2(View v) {
    new DatePickerDialog(
        act.this,
        d1,
        dateAndTime1.get(Calendar.YEAR) + 2,
        dateAndTime1.get(Calendar.MONTH),
        dateAndTime1.get(Calendar.DAY_OF_MONTH)
    ).show();
}
private void updateLabel2() {
    scadenza.setText(fmtDateAndTime.format(dateAndTime1.getTime()));           
}
DatePickerDialog.OnDateSetListener d1=new DatePickerDialog.OnDateSetListener() {
    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
        dateAndTime1.set(Calendar.YEAR, year);
        dateAndTime1.set(Calendar.MONTH, monthOfYear);
        dateAndTime1.set(Calendar.DAY_OF_MONTH, dayOfMonth);
        updateLabel2();
    }
};

谢谢

推荐答案

试试下面的代码.它将显示一个 DatePicker 仅包含年和月(不含日)

Try the following code. It will show a DatePicker with only the year and month (without day)

private DatePickerDialog createDialogWithoutDateField() {
        DatePickerDialog dpd = new DatePickerDialog(this, null, 2014, 1, 24);
        try {
            java.lang.reflect.Field[] datePickerDialogFields = dpd.getClass().getDeclaredFields();
            for (java.lang.reflect.Field datePickerDialogField : datePickerDialogFields) {
                if (datePickerDialogField.getName().equals("mDatePicker")) {
                    datePickerDialogField.setAccessible(true);
                    DatePicker datePicker = (DatePicker) datePickerDialogField.get(dpd);
                    java.lang.reflect.Field[] datePickerFields = datePickerDialogField.getType().getDeclaredFields();
                    for (java.lang.reflect.Field datePickerField : datePickerFields) {
                        Log.i("test", datePickerField.getName());
                        if ("mDaySpinner".equals(datePickerField.getName())) {
                            datePickerField.setAccessible(true);
                            Object dayPicker = datePickerField.get(datePicker);
                            ((View) dayPicker).setVisibility(View.GONE);
                        }
                    }
                }
            }
        } 
        catch (Exception ex) {
        }
        return dpd;
    }

此方法返回一个日期选择器对话框.因此，在您按钮的 onClick 方法中添加以下代码以显示您的对话框.

This method returns a date picker dialog. So , in your button's onClick method add the following code to display your dialog.

createDialogWithoutDateField().show();

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