Does AssetBundle on Android work well ?

Questions & Answers
1

My development enviroment is Unity Pro 3.3, Android Pro, and Windows Xp.

I try to make my own avatar system with CharacterCustomization Sample. But on Android, I can't load data of assets via AssetBundles.

On Windows, I succeeded to load assets via AssetBundles.Load() with WWW class. But on Android, same program does not work well. I can't load data.

How do I load data of assets on Android ?

3

I've got the answer.

Points are these.

  1. Use the option "BuildTarget.Android".
  2. Describe the path with triple slash "file:///"

I did it with these processes.

  1. Delete directories "Per Texture Materials", "assetbundles", and so on.
  2. Use the option "BuildTarget.Android" to all "BuildPipeline.BuildAssetBundle".
  3. Run these on Editor. Character Generator/Generate Materials Character Generator/Create Assetbundles Character Generator/Update Character Element Database
  4. Copy Assetbundles database to Android device which like "/mnt/sdcard/assetbundles/"
  5. Modify AssetbundleBaseURL. (the point was "file:///")
public static string AssetbundleBaseURL
{
    get
    {
        if (Application.platform == RuntimePlatform.WindowsWebPlayer || Application.platform == RuntimePlatform.OSXWebPlayer)
        {
            return Application.dataPath + "/assetbundles/";
        }
        else if (Application.platform == RuntimePlatform.Android)
        {
            return "file:///mnt/sdcard/assetbundles/";
        }
        else
        {
            return "file://" + Application.dataPath + "/../assetbundles/";
        }
    }
}
4

AssestBundles need to be made specifically for the target you want to use them on for it to work. It took a lot of swearing and head banging to figure this out. The docs should specify this. Once you make it for the android (or in this case, re-make them) it should work.

BuildPipeline.BuildAssetBundle(Selection.activeObject, selection, path, BuildAssetBundleOptions.CollectDependencies | BuildAssetBundleOptions.CompleteAssets, BuildTarget.Android);

notice the optional param BuildTarget.Android

6

If i do not want to Copy the AssetBundle ,Can i package the assetBundle in an apk !wich floder should i place the assetBundle !If i put the assetBundle in Assets floder the Code can not find the AssetBundle!

2

I've Got the same Problem just like U've.

Feel Sad Badly.

5

Thanks, Victor! You saved the day with that comment! I don’t know if I ever would have found that about the BuildTarget.Android if you didn’t mention it. I made that one change and then it worked! Awesome!