Unity笔记之屏幕初始化自适应

UICanvas一般会做一个初始化操作，把代码挂在Canvas上就好了

public class ProjectSceneMatch : MonoBehaviour
    {
        CanvasScaler canvas;
        private void Awake()
        {
            canvas = GetComponent<CanvasScaler>();
            SetPreferedMatch();
        }

        void SetPreferedMatch()
        {
            var screenWidth = Screen.width;
            var screenHeight = Screen.height;
            float screenRate = (float)screenWidth / screenHeight;

            var sceneScreenWidth = canvas.referenceResolution.x;
            var sceneScreenHeight = canvas.referenceResolution.y;
            float sceneCanvasRate = sceneScreenWidth / sceneScreenHeight;

            if (screenRate < sceneCanvasRate)
            {
                canvas.matchWidthOrHeight = 0;
            }
        }
    }