unity5.x Version Assetbundle Packaging research

Unity5 's assetbundle packaging mechanism is not the same as the previous version. Simply put, as long as you set a assetbundlename for the resources you want to package, unity itself will package the names of those resources, if one resource relies on another. Unity itself handles dependencies, and assetbundlemanifest files preserve the dependencies of those resources.
such as a UI panel. Prefab, relies on an atlas, a font file
Do a test:
Set Assetbundlename to UI panel 3.prefab only.

Out of the bag to see, don't look only 371KB, that is because I take the panel is not very complex, dependent on the Atlas, font, itself is not very large.
If you don't deal with dependencies in a project, you'll have a few m.

If there are other UI panels, set Assetbundlename, and hit packets, it's all that big.

Dependent files show that resources are not dependent, because each of the panels is individually packaged with a copy of the Atlas resource, font resources. Obviously this is not advisable.
For the same type of UI panel, these atlas and font files, we use the same copy, as long as the packaging of a copy, everyone sharing.
Then to the Atlas resources, font files are set Assetbundlename, and then packaged, you can see the smaller.

Looking at the. manifest file, there is a dependency.

Project, the resource is spicy, can not be in the editor a one to the resources to set assetbundlename it, it will hurt the egg, right.
On the Code

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Using unityengine;using system.collections;using unityeditor;using system.io; ///<summary>/// Package the resources under resource into a. Unity3d to streamingassets directory///</summary>public class Builder:editor{public static string SourcePath = Application.datapath + "/resources"; const string assetbundlesoutputpath = "Assets/streamingassets";  [MenuItem ("Tools/assetbundle/build")]public static void Buildassetbundle () {clearassetbundlesname ();  pack ( SourcePath);  string OutputPath = Path.Combine (Assetbundlesoutputpath,platform.getplatformfolder ( Editoruserbuildsettings.activebuildtarget)); if (! Directory.Exists (OutputPath)) {directory.createdirectory (OutputPath);} The  //is packaged Buildpipeline.buildassetbundles (outputpath,0, based on the platform activated within the buildsetting Editoruserbuildsettings.activebuildtarget);  assetdatabase.refresh ();  debug.log ("Packaged complete"); }  <summary>///clears previously set assetbundlename, avoids unnecessary resources and packages///previously said, as long as the assetbundlename is set, will be packaged, regardless of the directory///< /summary>static VoiD clearassetbundlesname () {int length = Assetdatabase.getallassetbundlenames (). Length;debug. Log (length); string[] Oldassetbundlenames = new String[length];for (int i = 0; i < length; i++) {oldassetbundlenames[i] = Assetdatabase.getallassetbundlenames () [i];}  for (int j = 0; J < Oldassetbundlenames.length; J + +) {Assetdatabase.removeassetbundlename (oldassetbundlenames[ J],true);} Length = Assetdatabase.getallassetbundlenames (). Length;debug. Log (length);}  static void Pack (string source) {DirectoryInfo folder = new DirectoryInfo (source); filesysteminfo[] Files = folder. Getfilesysteminfos (); int length = files. length;for (int i = 0; i < length; i++) {if (Files[i] is DirectoryInfo) {Pack (files[i]. FullName);} Else{if (!files[i]. Name.endswith (". Meta")) {file (Files[i]. FullName);}}}  static void file (string source) {String _source = Replace (source); string _assetpath = "Assets" + _source. Substring (Application.dataPath.Length); string _assetpath2 = _source. Substring (APPLICATION.DAtapath.length + 1);//debug.log (_assetpath);  //set the resource in code assetbundlenameassetimporter Assetimporter = Assetimporter.getatpath (_assetpath); string assetname = _assetpath2.substring (_assetpath2.indexof ("/") + 1); Assetname = Assetname.replace (Path.getextension (Assetname), ". Unity3d");//debug.log (Assetname); Assetimporter.assetbundlename = Assetname;}  static string Replace (string s) {return s.replace ("\ \", "/");}}  public class Platform {public static string Getplatformfolder (Buildtarget target) {switch (target) {case BuildTarget.Android:return "Android", Case BuildTarget.iOS:return "IOS", Case BuildTarget.WebPlayer:return "Webplayer Case BuildTarget.StandaloneWindows:case BuildTarget.StandaloneWindows64:return "Windows"; BuildTarget.StandaloneOSXIntel:case BuildTarget.StandaloneOSXIntel64:case buildtarget.standaloneosxuniversal: Return "OSX";d Efault:return Null;}}}

With this. manifest file that contains the dependencies of all resources, when loading a resource, it is necessary to load all resources dependent on the resource, then load the resource, and then use it. Load this piece and finish it next time.
The code is here, and I'm not uploading the project.
Thanks for a prayer!

unity5.x Version Assetbundle Packaging research