Unity3d选择本地图片并加载

①找到System.Windows.Forms.dll：在unity的安装目录中找到它，如                       E:\ProgramFiles(x86)\Unity\Editor\Data\Mono\lib\mono\2.0

②设置.NET 2.0集：Untiy默认是.NET 2.0 Subset。在Edit->Project Settings->Player->OtherSettings中修改

③任意打开一项目，新建Plugins文件夹，将找到的System.Windows.Forms.dll复制进去工程文件中(Project)

<span style="font-size:14px;">using UnityEngine;
using System.Collections;
using System;
using System.Windows.Forms;
using System.IO;
using UnityEngine.UI;
public class AddHead : MonoBehaviour {
private Texture2D img=null;
public Image image;
public Sprite sprite;
// Use this for initialization
void Start () {
}
// Update is called once per frame
void Update () {
}
/*void OnGUI(){
if (GUI.Button (new Rect (0, 0, 100, 20), "选择文件")) {
}*/
public void addhead(){
OpenFileDialog od=new OpenFileDialog();
od.Title="请选择头像图片";
od.Multiselect=false;
od.Filter="图片文件(*.jpg,*.png,*.bmp)|*.jpg;*.png;*.bmp";
if(od.ShowDialog()==DialogResult.OK){
//Debug.Log(od.FileName);
StartCoroutine(GetTexture("file://"+od.FileName));
}
/*if (img != null) {
//GUI.DrawTexture(new Rect(0,20,img.width,img.height),img);
image.sprite=sprite;
}*/
}
IEnumerator GetTexture(string url){
WWW www = new WWW (url);
yield return www;
if (www.isDone && www.error == null) {
img=www.texture;
sprite=Sprite.Create(img,new Rect(0,0,img.width,img.height),new Vector2(0.5f,0.5f));
image.sprite=sprite;
//Debug.Log(img.width+" "+img.height);
byte[] date=img.EncodeToPNG();
}
}
}</span>
为按钮绑定一个addhead()的方法



在编辑器运行，当出现此弹窗，确定忽略即可。发布成桌面客户端是不会有这个弹窗的。



看运行效果


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