From our customer demand we want to keep the HOLO style on the DatePickerDialog for all Android OS version, sth like: DatePicker on Android 7-
But it seems to not to
Date picker has it's own separate style https://developer.android.com/reference/android/R.style.html#Widget_DatePicker
I think you need R.style.Widget.Holo.DatePicker
instead of AlertDialog.THEME_HOLO_LIGHT
. It's possible you may need to create your own empty style that has @android:style/Widget.Holo.DatePicker
as it's parent and use that.