Unity3d — — UGUI之Box Collider自適應大小

NGUI下給Sprite/image添加collider后能自適應大小，但是在UGUI下Collider是默認在（0，0）位置，size為0

因此寫了個簡單的腳本，效果如下（最后附代碼）

1.如下圖添加Box Collider 2D后的默認位置與大小

 

2.給需要的物體添加Script並運行后的效果：

 

 

代碼：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class BoxColliderAdjust : MonoBehaviour {

    public bool AdjustBoxCollider = false;
    private BoxCollider2D boxCollider2D;
    private RectTransform gameObject;
    // Use this for initialization
     void Start () {
        gameObject = this.GetComponent<RectTransform>();
        boxCollider2D = this.GetComponent<BoxCollider2D>();
    }
    
    // Update is called once per frame
    void Update () {
        if (boxCollider2D == null)
        {
            Debug.Log("can't find collider");
            return;
        }
        else
        {

            if (AdjustBoxCollider == true)
            {
                boxCollider2D.offset = gameObject.rect.center;      //把box collider設置到物體的中心
                boxCollider2D.size = new Vector2(gameObject.rect.width, gameObject.rect.height);    //改變collider大小
            }
        }
    }
}