unity笔记-1128-UGUI替换Image图片的三种方式

转载自 http://www.manew.com/thread-96801-1-1.html  网虫虫

在NGUI中，我们可以直接用spriteName = “想要替换的图片名称”;  就可以很方便的替换资源

而UGUI却相对要麻烦一点，下面为大家介绍比较常用的三种替换方式。

一、

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class Test : MonoBehaviour
{

[SerializeField]
Image myImage;

// Use this for initialization
void Start()
{
myImage.sprite = Resources.Load("Image/pic", typeof(Sprite)) as Sprite; // Image/pic 在 Assets/Resources/目录下
}
}

二、

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class Test : MonoBehaviour
{

[SerializeField]
Image myImage;

[SerializeField]
Sprite mySprite;

// Use this for initialization
void Start()
{
myImage.sprite = mySprite; // mySprite 为外部指定的图片资源
}
}

三、

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class Test : MonoBehaviour {

[SerializeField]
Image myImage;

// Use this for initialization
void Start () {
StartCoroutine(GetImage());
}

IEnumerator GetImage()
{
string url = "http://www.5dbb.com/images/logo.gif";
WWW www = new WWW(url);
yield return www;
if (string.IsNullOrEmpty(www.error))
{
Texture2D tex = www.texture;
Sprite temp = Sprite.Create(tex, new Rect(0, 0, tex.width, tex.height), new Vector2(0, 0));
myImage.sprite = temp;
}
}
}