Unity实现GUI适配

Posted 2021-09-14 Hello Bug.

一：前言

例如通过OnGUI绘制一个按钮，在不同分辨率下的大小比例会不同

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二：代码实现

using UnityEngine;

public class TestGUI : MonoBehaviour
{
    private void OnGUI()
    {
        Resize();

        GUILayout.Button("this is a button");
    }

    Vector2 nativeResolution = new Vector2(750, 1334);
    Vector2 ratio;
    void Resize()
    {
        ratio = new Vector2(Screen.width * 1f / nativeResolution.x, Screen.height * 1f / nativeResolution.y);
        Matrix4x4 m = Matrix4x4.identity;
        m.SetTRS(Vector3.zero, Quaternion.identity, new Vector3(ratio.x, ratio.y, 1));
        GUI.matrix = m;
    }
}