Android 6.0 DatePickerDialog Theme

Question

Seems like anyone using Marshmallow (Android 6.0) is not able to use the DatePicketDialog within my app. There appears to be some sort of theme issue that I'm encountering. I use a DialogFragment which contains a DatePicketDialog for the user to select birthday. Here are shots of the DialogFragment with Android 5.x an d 6.x.

I attempted to add a theme in the DatePickerDialog constructor, but that made the DialogFragment fullscreen and I don't want that. Does anyone know how I can get the DatePickerDialog to look like it was prior to Marshmallow?

UPDATE 1

Here is the code where I create the DialogFragment:

DialogFragment ageFragment = new DatePickerDialogFragment();
ageFragment.show(getFragmentManager(), "datePicker");

Here is the onCreateDialog inside the DatePickerDialogFragment:

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    // Use the current date as the default date in the picker if no filters are set
    Calendar cal = Calendar.getInstance();
    // Set the date 18 years previous, since only 18 and older are allowed on the app
    cal.add(Calendar.YEAR, -18);
    int year, month, day;
    if (iDialogListener.getYear() == -1 || iDialogListener.getMonth() == -1
            || iDialogListener.getDay() == -1) {
        Calendar defaultCal = Calendar.getInstance();
        // 40 is the default age to show
        defaultCal.add(Calendar.YEAR, -40);
        year = defaultCal.get(Calendar.YEAR);
        month = defaultCal.get(Calendar.MONTH);
        day = defaultCal.get(Calendar.DAY_OF_MONTH);
    } else {
        year = iDialogListener.getYear();
        month = iDialogListener.getMonth();
        day = iDialogListener.getDay();
    }

    DatePickerDialog datepicker = new DatePickerDialog(getActivity(), this, year, month, day);
    datepicker.getDatePicker().setMaxDate(cal.getTimeInMillis());
    Calendar minDate = Calendar.getInstance();
    minDate.set(Calendar.YEAR, Calendar.getInstance().get(Calendar.YEAR) - 100);
    datepicker.getDatePicker().setMinDate(minDate.getTimeInMillis());

    // Create a new instance of DatePickerDialog and return it
    return datepicker;
}

In the themes.xml the only line that touches Dialogs is

<item name="android:alertDialogTheme">@style/CustomDialogTheme</item>

But if I'm thinking right, that doesn't touch the DialogFragment does it?

Update 2

Here is the CustomDialogTheme:

<style name="CustomDialogTheme" parent="@android:style/Theme.Holo.Light.Dialog">
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:windowMinWidthMajor">@android:dimen/dialog_min_width_major</item>
    <item name="android:windowMinWidthMinor">@android:dimen/dialog_min_width_minor</item>
</style>

Answer 1

You create theme in styles.xml but didn't refer it to DatePickerDialog like

DatePickerDialog dlg = new DatePickerDialog(getActivity(),
                R.style.datepickerCustom,this,year,month,day);

and create a folder name values-v21 and add a copy of style.xml to it. and paste

<style name="datepickerCustom" parent="@android:style/Theme.DeviceDefault.Light.Dialog">
        <item name="android:colorAccent">@color/orange_theme</item>
        <item name="android:windowBackground">@android:color/darker_gray</item>
        <!--<item name="android:windowContentOverlay">@null</item>-->
        <!--<item name="android:textColorPrimary">@color/white</item>-->
        <!--<item name="android:textColorSecondary">@color/white</item>-->
    </style>