KivyMD android app - problem with permission

[polak7gt]

I created a simple app for viewing my weekly meal plan. It reads the SQLite database. The app worked on my old smartphone; however, it does not work on my new Pixel 7 smartphone. The issue is that my app does not have access to the smartphone's storage, where the database is localized. It was possible to grant that access with my old smartphone; however, it is not possible with the new one. So, I have to modify my app to make it request such permission. Unfortunately, I don't know how to do that. I tried with ChatGPT, but it didn't work.

Here is my simple code, which worked on my old smartphone:

from kivy.properties import StringProperty
from kivy.lang import Builder
from kivy.uix.tabbedpanel import TabbedPanel
from kivymd.app import MDApp

import functions

meals = functions.getMealList()
meal_list_for_kv_file = functions.getMealsFor_kv_File(meals)
current_meal_name = ''

kv_string = '''
<MyLayout>
	do_default_tab: False
	size_hint: 1, 1
	
		# ft_top, left_mid, left_bottom, top_left,
		# top_mid, top_right, right_top, right_mid,
		# right_bottom, bottom_left, bottom_mid,
		# bottom_right.

	tab_pos: 'top_mid'

	TabbedPanelItem:
		text: "Meal List"
		ScrollView:
			MDList:
{0}

	TabbedPanelItem:
		text: "Meal"
		on_release: root.pressedMealTab()
		BoxLayout:
			orientation: 'vertical'
			Label:
				font_size: self.width/30
			    text_size: self.size
			    halign: 'left'
			    valign: 'top'
				id: Label1Tab2_id
				text: root.meal_ingredients
			Label:
				font_size: self.width/40
			    text_size: self.size
			    halign: 'left'
			    valign: 'top'			
				id: Label2Tab2_id
				text: root.meal_recipe


	TabbedPanelItem:
		text: "Week"
		on_release: root.pressedWeekTab()
		BoxLayout:
			orientation: 'vertical'
			Label:
			    text_size: self.size
			    halign: 'left'
			    valign: 'middle'			
				id: Label1Tab3_id
				text: root.monday_meals
			Label:
			    text_size: self.size
			    halign: 'left'
			    valign: 'middle'
				id: Label2Tab3_id
				text: root.thuesday_meals
			Label:
			    text_size: self.size
			    halign: 'left'
			    valign: 'middle'
				id: Label3Tab3_id
				text: root.wednesday_meals
			Label:
			    text_size: self.size
			    halign: 'left'
			    valign: 'middle'
				id: Label4Tab3_id
				text: root.thursday_meals
			Label:
			    text_size: self.size
			    halign: 'left'
			    valign: 'middle'
				id: Label5Tab3_id
				text: root.friday_meals
			Label:
			    text_size: self.size
			    halign: 'left'
			    valign: 'middle'
				id: Label6Tab3_id
				text: root.saturday_meals
			Label:
			    text_size: self.size
			    halign: 'left'
			    valign: 'middle'
				id: Label7Tab3_id
				text: root.sunday_meals

'''.format(meal_list_for_kv_file)

# print(kv_string)

# Designate Our .kv design file
Builder.load_string(kv_string)

class MyLayout(TabbedPanel):
	meal_ingredients = StringProperty()
	meal_recipe = StringProperty()
	monday_meals = StringProperty()
	thuesday_meals = StringProperty()
	wednesday_meals = StringProperty()
	thursday_meals = StringProperty()
	friday_meals = StringProperty()
	saturday_meals = StringProperty()
	sunday_meals = StringProperty()

	

	def pressedMealTab(self):
		global current_meal_name
		try:
			self.ids.Label1Tab2_id.text = functions.getMealIngredientString(current_meal_name)
			self.ids.Label2Tab2_id.text = functions.getMealRecipe(current_meal_name)
		except:
			print("YOU HAVEN'T CHOOSE A MEAL")

	def pressedWeekTab(self):
		try:
			self.ids.Label1Tab3_id.text = functions.getMealsForASingleDay("MONDAY", "weekly_menu1_1")
			self.ids.Label2Tab3_id.text = functions.getMealsForASingleDay("THUESDAY", "weekly_menu1_2")
			self.ids.Label3Tab3_id.text = functions.getMealsForASingleDay("WEDNESDAY", "weekly_menu1_3")
			self.ids.Label4Tab3_id.text = functions.getMealsForASingleDay("THURSDAY", "weekly_menu1_4")
			self.ids.Label5Tab3_id.text = functions.getMealsForASingleDay("FRIDAY", "weekly_menu1_5")
			self.ids.Label6Tab3_id.text = functions.getMealsForASingleDay("SATURDAY", "weekly_menu1_6")
			self.ids.Label7Tab3_id.text = functions.getMealsForASingleDay("SUNDAY", "weekly_menu1_7")

		except:
			print("CAN'T GET WEEKLY MENU")





class MealPlannerAndroid(MDApp):
	def build(self):
		return MyLayout()

	def pressedMealOnList(self, pressed, list_id):
		pressed.tertiary_text = f"You Pressed {list_id}"
		#print(pressed.tertiary_text)
		global current_meal_name
		current_meal_name = list_id


if __name__ == '__main__':
	MealPlannerAndroid().run()

And here is the modified by chatGPT code, which does not work:
https://pastebin.com/Rfd79a32

And here is the functions.py file:
https://pastebin.com/TkG82VhY

How to solve this problem?