Creating a Scroll View with a Vertical Layout in Unity

1. Add a UI Panel to the scene. This panel will serve as the parent container for the scroll view and layout.

2. In the panel, add a UI Scroll Rect component. This component will allow the contents of the panel to be scrollable.

3. Next, add a UI Mask component to the panel. This component will be used to mask the contents of the scroll view and make them appear inside the panel's boundaries.

4. Create a new UI Image component and set it as the child of the panel. This image will serve as the background for the scroll view.

5. Inside the image, add a UI Vertical Layout Group component. This component will be used to arrange the contents of the scroll view vertically.

6. Create a new UI Button and set it as the child of the panel. This button will be used as an example of the contents of the scroll view.

7. Repeat step 6 as many times as needed to create additional buttons to be displayed in the scroll view.

8. In the Scroll Rect component, set the "Content" field to the image game object and set the "Viewport" field to the panel game object.

9. In the Vertical Layout Group component, adjust the settings such as "Child Control Width", "Child Control Height", "Child Force Expand Width", "Child Force Expand Height" and the padding to fit the design of the scrollview.

10. Test the scroll view by running the Unity project and observing the contents of the scroll view being displayed vertically inside the panel and being scrollable.

Example of a basic Code:

using UnityEngine;

using UnityEngine.UI;

public class ScrollViewVertical : MonoBehaviour

{

    public GameObject scrollViewContent;

    public GameObject buttonPrefab;

    public int numberOfButtons = 10;

    private void Start()

    {

        for(int i = 0; i < numberOfButtons; i++)

        {

            GameObject button = Instantiate(buttonPrefab, scrollViewContent.transform);

            button.GetComponentInChildren<Text>().text = "Button " + (i+1);

        }

    }

}

In this code, the ScrollViewVertical script is attached to the parent panel game object, the scrollViewContent variable is linked to the Image game object with the Vertical Layout Group component, and the buttonPrefab variable is linked to a prefab of a button game object that will be used to instantiate the buttons. The script uses a for loop to instantiate the number of buttons specified in the numberOfButtons variable, and set their text. Please note that this is a basic example, you can add more functionality like adding a scrollbar or using different UI components, you can also adjust the layout of the scrollview to fit your design.