yzyCli/u3d/Assets/LuaFramework/Scripts/UIHelper/DebugUILine.cs

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
public class DebugUILine : MonoBehaviour
{
#if UNITY_EDITOR
    static Vector3[] fourCorners = new Vector3[4];
    public bool is_enable = true;
    void OnDrawGizmos()
    {   
        if (is_enable)
        {
            foreach (MaskableGraphic g in GameObject.FindObjectsOfType<MaskableGraphic>())
            {
                if (g.raycastTarget)
                {
                    RectTransform rectTransform = g.transform as RectTransform;
                    rectTransform.GetWorldCorners(fourCorners);
                    Gizmos.color = Color.blue;
                    for (int i = 0; i < 4; i++)
                        Gizmos.DrawLine(fourCorners[i], fourCorners[(i + 1) % 4]);

                }
            }
        }
        
    }
#endif
}