Android datepicker min max date before api level 1

2019-01-05 03:19发布

I am trying to set the min and max date of the date picker in Android to before API level 11. I used the following code:

mDatePickerField = startDatePickerDialog.getClass().getDeclaredField("mDatePicker");
mDatePickerField.setAccessible(true);

DatePicker startDatePickerInstance =(DatePicker)mDatePickerField.get(startDatePickerDialog);
startDatePickerInstance.init(mYearMin, mMonthMin, mDayMin, new DatePicker.OnDateChangedListener() {
    @Override
    public void onDateChanged(DatePicker datePicker, int i, int i1, int i2) {
        Date maxDate = new Date(mYearMax, mMonthMax, mDayMax, 0, 0, 0);
        Date selectedDate = new Date(i, i1, i2, 0, 0, 0);
        if (selectedDate.after(maxDate)) {
            datePicker.updateDate(mYearMax, mMonthMax, mDayMax);                                        
        }
    }
}

However, the updateDate method fires onDateChanged again and the date picker is not updated.
Can anyone help to solve the problem?

7条回答
Bombasti
2楼-- · 2019-01-05 04:06

Found a cool way to set the min and max date for DatePickerDialog. Works for All Android versions. Simply you need to return the DatePickerDialog based on Android version

protected Dialog onCreateDialog(int id)
{
    switch ( id )
    {
        case DATE_DIALOG_ID:
            DatePickerDialog dialog = null;
            if ( Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB )
            {
                dialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener()
                {
                    @Override
                    public void onDateSet(DatePicker view, int selectedYear, int selectedMonth, int selectedDate)
                    {
                        mTextView.setText(selectedDate + "/" + selectedMonth + 1 + "/" + selectedYear);
                    }
                }, year, month - 1, date);
                Calendar currentDate = Calendar.getInstance();
                dialog.getDatePicker().setMaxDate(currentDate.getTimeInMillis());
                //If you need you can set min date too
            }
            else
            {
                dialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener()
                {
                    @Override
                    public void onDateSet(DatePicker view, int selectedYear, int selectedMonth, int selectedDate)
                    {
                        mTextView.setText(selectedDate + "/" + selectedMonth + 1 + "/" + selectedYear);
                    }
                }, year, month - 1, date)
                {
                    @Override
                    public void onDateChanged(DatePicker view, int year, int month, int day)
                    {
                        if ( year <= maxYear && month + 1 <= maxMonth && date <= maxDate ) //meets your criteria
                        {
                            view.updateDate(year, month, date); //update the date picker to selected date
                        }
                        else
                        {
                            view.updateDate(maxYear, maxMonth - 1, maxDate); // or you update the date picker to previously selected date
                        }
                    }
                };
            }
            return dialog;
    }
    return null;
}
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