[Unity热更新]01.打包与加载基础

参考链接：

https://www.jianshu.com/p/7e7b34b24296

unity版本：2018.3.8

1.打包

新建一个Cube，保存为prefab，使用下面的脚本进行打包(先设置AssetBundleName然后打包)

打包脚本：

using UnityEngine;
using UnityEditor;
using System.IO;

public class CreateAssetBundle : Editor
{
    [MenuItem("AssetBundle/01.SetAssetBundleName")]
    static void SetAssetBundleName()
    {
        Object[] objects = Selection.objects;
        foreach (Object o in objects)
        {
            string assetPath = AssetDatabase.GetAssetPath(o);
            AssetImporter assetImporter = AssetImporter.GetAtPath(assetPath);
            assetImporter.assetBundleName = o.name; 
            assetImporter.SaveAndReimport();
        }
        AssetDatabase.Refresh();
    }

    [MenuItem("AssetBundle/02.BuildAll")]
    static void BuildAll()
    {
        string path = Application.dataPath + "/AB/";
        if (Directory.Exists(path))
        {
            Directory.Delete(path, true);
        }
        Directory.CreateDirectory(path);
        BuildPipeline.BuildAssetBundles(path, BuildAssetBundleOptions.None, BuildTarget.Android);
        AssetDatabase.Refresh();
    }
}

如下：

2.加载

using UnityEngine;

public class TestAB : MonoBehaviour
{
    void Start()
    {
        AssetBundle ab = AssetBundle.LoadFromFile("Assets/AB/cube");
        if (ab != null)
        {
            GameObject go = Instantiate(ab.LoadAsset<GameObject>("cube"));
            go.transform.localScale = Vector3.one * 2;
        }
    }
}

如下：