Form_Dialog datetime type with year

[cvp]

For people like @Grun6 who write their own Form_Dialog, the datetime field type does not really allow to select the year, but only month/day/hour/minute.
With this modification, this code creates one date picker AND one time picker and so the user can really also select the year.

def show_datepicker(self, mode):
		ui.end_editing()
		self.shield_view = ui.View()
		self.shield_view.flex = 'WH'
		self.shield_view.frame = (0, 0, self.view.width, self.view.height)
		
		self.dismiss_datepicker_button = ui.Button()
		self.dismiss_datepicker_button.flex = 'WH'
		self.dismiss_datepicker_button.frame = (0, 0, self.view.width, self.view.height)
		self.dismiss_datepicker_button.background_color = (0, 0, 0, 0.5)
		self.dismiss_datepicker_button.action = self.dismiss_datepicker
		self.dismiss_datepicker_button.alpha = 0.0
		self.shield_view.add_subview(self.dismiss_datepicker_button)

		self.date_picker = ui.DatePicker()
		self.date_picker.date = self.selected_date_value
		self.date_picker.background_color = 'white'
		if mode == ui.DATE_PICKER_MODE_DATE_AND_TIME:
			self.date_picker.mode = ui.DATE_PICKER_MODE_DATE
			w = self.shield_view.width/2
		else:
			self.date_picker.mode = mode
			w = self.shield_view.width
		self.date_picker.frame = (0, self.shield_view.height - self.date_picker.height, w, self.date_picker.height)
		self.date_picker.flex = 'TW'
		self.date_picker.transform = ui.Transform.translation(0, self.date_picker.height)
		self.shield_view.add_subview(self.date_picker)

		if mode == ui.DATE_PICKER_MODE_DATE_AND_TIME:		
			self.time_picker = ui.DatePicker()
			self.time_picker.date = self.selected_date_value
			self.time_picker.background_color = 'white'
			self.time_picker.mode = ui.DATE_PICKER_MODE_TIME
			self.time_picker.frame = (w, self.shield_view.height - self.time_picker.height, w, self.date_picker.height)
			self.time_picker.flex = 'TW'
			self.time_picker.transform = ui.Transform.translation(0, self.time_picker.height)
			self.shield_view.add_subview(self.time_picker)

		self.container_view.add_subview(self.shield_view)
		
		def fade_in():
			self.dismiss_datepicker_button.alpha = 1.0
			self.date_picker.transform = ui.Transform.translation(0, 0)
			if hasattr(self,'time_picker'):
				self.time_picker.transform = ui.Transform.translation(0, 0)
		ui.animate(fade_in, 0.3)

	def dismiss_datepicker(self, sender):
		value = self.date_picker.date
		if hasattr(self,'time_picker'):
			value_time = self.time_picker.date
			# store time of value_time in value
			date_str = datetime.datetime.strftime(value,'%Y:%m:%d %H:%M:%S')
			time_str = datetime.datetime.strftime(value_time,'%Y:%m:%d %H:%M:%S')
			date_str = date_str[:10] + time_str[10:]
			value = datetime.datetime.strptime(date_str, '%Y:%m:%d %H:%M:%S')
		
		if self.selected_date_type == 'date':
			self.selected_date_cell.detail_text_label.text = value.strftime(self.selected_date_format)
		elif self.selected_date_type == 'time':
			self.selected_date_cell.detail_text_label.text = value.strftime(self.selected_date_format)
		else:
			self.selected_date_cell.detail_text_label.text = value.strftime(self.selected_date_format)

		self.values[self.selected_date_key] = value
		
		def fade_out():
			self.dismiss_datepicker_button.alpha = 0.0
			self.date_picker.transform = ui.Transform.translation(0, self.date_picker.height)
			if hasattr(self,'time_picker'):
				self.time_picker.transform = ui.Transform.translation(0, self.time_picker.height)

[Grun6]

Nice modification @cvp