3335 修改debugroot，以适应超宽屏幕

client_Wu Xijin

2018-12-05 a6d733063f3b40d302e7ec4b5ea0459dcbb0b5b1

3335 修改debugroot，以适应超宽屏幕

 UI/Core/DebugCanvasAddition.cs

New file
@@ -0,0 +1,39 @@
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using Snxxz.UI;

[DisallowMultipleComponent]
[RequireComponent(typeof(Canvas))]
public class DebugCanvasAddition : MonoBehaviour
{

    [SerializeField]
    Canvas m_Canvas;
    public Canvas canvas {
        get {
            return this.m_Canvas ?? (this.m_Canvas = this.GetComponent<Canvas>());
        }
    }

    void Start()
    {
        var canvasScaler = this.GetComponent<CanvasScaler>();
        if (canvasScaler != null && canvasScaler.screenMatchMode == CanvasScaler.ScreenMatchMode.MatchWidthOrHeight)
        {
            var screenAspect = Screen.width / (float)Screen.height;
            var referenceAspect = canvasScaler.referenceResolution.x / (float)canvasScaler.referenceResolution.y;

            if ((screenAspect - referenceAspect) > 0.0001f)
            {
                canvasScaler.matchWidthOrHeight = 1f;
            }
            else
            {
                canvasScaler.matchWidthOrHeight = 0f;
            }
        }
    }

}

 UI/Core/DebugCanvasAddition.cs.meta

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@@ -0,0 +1,12 @@
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