GridLayout | Swift library for displaying UI elements using a grid layout | Grid library

this code returns me a black screen, what am I doing wrong?

python file:

This Has To One OF The Most Annoying Errors In Python That Have So Many Solutions Depending On The Question

Main.py

I need help.

I created a small mobile application with Kivy.

I have two screens: ScreenList and ScreenDetail.

However the screen(ScreenList) containing GridLayout does not refresh

ScreenList: contains a list of items

ScreenDetail: Contains the details of a single item.

How the app works:

1. When I click on the first item on button 1
2. I go to the details of the item.
3. I modify the second field. I replace the text: Firt element for First and update data
4. After recording, I redirect the application to the screens which contain (ScreenList) the list of elements.
5. But the list of elements remains unchanged then the data has been modified in the database. 6.And when I return to the screen (ScreenDetail) which contains the details, there I see that the data is updated.

How can I refresh the item list in ScreenList?

Here are the pictures as an example

List before update

before update

after update

List after update

Here is the python code:

I'm new to Android and I need to use a ScrollView to wrap my whole content, since in some cases it needs to take up more height than is available on the screen. Most of the cases though, the height of the content is smaller than the screen. The ScrollView will almost always have a background color (not white), which needs to fill the whole screen available, not just wrap the content. I've checked a few other topics related to this, but the answers were outdated and none of them seems to solve the issue or even focuses on the question asked.

Extra details: Inside the ScrollView there is a RelativeLayout which encapsulates the content, as there can be only one element inside a ScrollView.

Please limit the answers to Java for Android Studio or XML configuration, if they don't use a programmatic approach, neither Kotlin, nor any other language used for Android programming. Thank you in advance!

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Here is the code of my GUI Class:

ok so my goal is to have a very clean slate as I like it when my code is organized, but that has also caused me too much trouble.

I have 3 .py files:

Main.py:

I am trying to make a dynamic Gridlayout, 3 by 3 in portrait, or 5 by 5 in landscape. The plan is to fill the grid with ImageViews for a Tic Tac Toe game. During the game, players can choose to change the orientation so the grid will also change dimension. So i made the ImageViews fill the grid dynamically:

ImageView xml: