DoubleDateAndTimePickerDialog, need public access to the picker or some callback.

[ghost]

DoubleDateAndTimePickerDialog keeps two SingleDateAndTimePicker objects, but it seems that not able to change value of isAmPm. (version: 2.1.5) It's hard to use reflection to do some workarounds due to everything are lazy-initialized after display the dialog, and no callback to detect the dialog state. IMO, it's hard to customize this useful library.