Skip to content

Instantly share code, notes, and snippets.

@Tymski
Created April 16, 2021 22:06
Show Gist options
  • Save Tymski/652c6b47e79bfaf773f2bff8ebd43e97 to your computer and use it in GitHub Desktop.
Save Tymski/652c6b47e79bfaf773f2bff8ebd43e97 to your computer and use it in GitHub Desktop.
using UnityEngine;
using UnityEngine.UI;
/// <summary>
/// Use a number of cells and columns instead of cell width and height
/// </summary>
[RequireComponent(typeof(GridLayoutGroup))]
[ExecuteInEditMode]
public class GridLayoutGroupCells : MonoBehaviour
{
GridLayoutGroup gridLayoutGroup;
RectTransform rectTransform;
[SerializeField] int columns = 0;
[SerializeField] int rows = 0;
private void Awake()
{
gridLayoutGroup = GetComponent<GridLayoutGroup>();
rectTransform = GetComponent<RectTransform>();
}
private void Update()
{
CalculateCellSize();
}
void CalculateCellSize()
{
float cellWidth = rectTransform.rect.width;
if (columns > 0)
{
cellWidth -= gridLayoutGroup.padding.left;
cellWidth -= gridLayoutGroup.padding.right;
cellWidth -= gridLayoutGroup.spacing.x * (columns - 1);
cellWidth -= float.Epsilon * 2;
cellWidth /= columns;
}
float cellHeight = rectTransform.rect.height;
if (rows > 0)
{
cellHeight -= gridLayoutGroup.padding.top;
cellHeight -= gridLayoutGroup.padding.bottom;
cellWidth -= gridLayoutGroup.spacing.y * (rows - 1);
cellHeight -= float.Epsilon * 2;
cellHeight /= rows;
}
gridLayoutGroup.cellSize = new Vector2(
cellWidth,
cellHeight
);
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment