Unity5 Assetbundle Series--loading and unloading of resources and use of assetbundlemanifest

The following code lists common operations for Assetbundle resources, with operations for bundles, asset, Gameobject, and three types of objects, which are guaranteed to be used in practice.

This piece of operation is more cumbersome, but as long as the use of the correct, can ensure that the resources are completely non-leaking.

usingUnityengine;usingSystem.Collections; Public classtestassetbundle:monobehaviour{ Public stringAssetbundlename ="Cube1.assetbundle"; Private stringDIR =""; PrivateAssetbundle bundle =NULL; PrivateUnityengine.object Asset =NULL; PrivateGameobject go =NULL; Private voidStart () {dir = Application.datapath +"/streamingassets/"; } Private voidOngui () {//Once these operations come down, the requested resources can be fully recovered.        if(Guilayout.button ("Loadassetbundle", Guilayout.width ( $), Guilayout.height ( -)) {loadbundle ();} if(Guilayout.button ("Loadasset", Guilayout.width ( $), Guilayout.height ( -)) {Loadasset ();} if(Guilayout.button ("Instantiate", Guilayout.width ( $), Guilayout.height ( -)) {instantiate ();} if(Guilayout.button ("Destroy", Guilayout.width ( $), Guilayout.height ( -)) {Destroy ();} if(Guilayout.button ("Unload", Guilayout.width ( $), Guilayout.height ( -)) {Unload ();} if(Guilayout.button ("Unloadforce", Guilayout.width ( $), Guilayout.height ( -)) {Unloadforce ();} if(Guilayout.button ("unloadunusedassets", Guilayout.width ( $), Guilayout.height ( -)) {unloadunusedassets ();} }    //Load Assetbundle    Private voidLoadbundle () {bundle=assetbundle.loadfromfile (System.IO.Path.Combine (dir, assetbundlename)); if(Bundle = =NULL) Debug.logerror ("Loadbundle Failed"); }    //load asset from Assetbundle    Private voidLoadasset () {if(Bundle = =NULL)return; Asset= bundle. Loadasset ("Cube1"); if(Asset = =NULL) Debug.logerror ("Loadasset Failed"); }    //instantiate Gameobject based on asset    Private voidInstantiate () {if(Asset = =NULL)return; Go= gameobject.instantiate (Asset) asGameobject; if(Go = =NULL) Debug.logerror ("Instantiate Failed"); }    //destroying Gameobject    Private voidDestroy () {if(Go = =NULL)return;        Gameobject.destroy (GO); Go=NULL; }    //weak offload, freeing the memory of Assetbundle itself    Private voidUnload () {if(Bundle = =NULL)return; //unload end, bundle can no longer use, remember to emptyBundle. Unload (false); Asset=NULL; Bundle=NULL; }    //Strong offload (ignoring the referenced offload), freeing the memory of Assetbundle itself while recovering asset extracted from Assetbundle    Private voidUnloadforce () {if(Bundle = =NULL)return; //unload end, bundle can no longer use, remember to emptyBundle. Unload (true); Asset=NULL; Bundle=NULL; }    //Global Weak offload, recycle unreferenced asset    Private voidunloadunusedassets () {resources.unloadunusedassets (); }}

Since bundles are dependent on each other before they are used, it is necessary to load all the bundle packages that they depend on before using a bundle package, a process that needs to be implemented with global manifest , with the following simple code:

usingUnityengine;usingSystem.Collections; Public classtestmanifest:monobehaviour{Private stringDIR =""; PrivateGameobject go =NULL; PrivateAssetbundlemanifest manifest =NULL; Private voidStart () {dir = Application.datapath +"/streamingassets/"; } Private voidOngui () {if(Guilayout.button ("loadassetbundlemanifest", Guilayout.width ( $), Guilayout.height ( -)) {loadassetbundlemanifest ();} if(Guilayout.button ("Loadbundle", Guilayout.width ( $), Guilayout.height ( -)) {loadbundle ();} }    //Load Manifest    Private voidloadassetbundlemanifest () {varBundle = Assetbundle.loadfromfile (System.IO.Path.Combine (dir,"streamingassets")); Manifest= bundle. Loadasset<assetbundlemanifest> ("assetbundlemanifest"); //Compress package releasedBundle. Unload (false); Bundle=NULL; }    //Load Assetbundle    Private voidLoadbundle () {stringBundlename ="Assets.resources.test.cube1.prefab.assetbundle"; //Note: The getalldependencies will return direct and indirect associated Assetbundle//load dependent packages do not have order requirements        string[] dependence =manifest.        Getalldependencies (Bundlename);  for(inti =0; I < dependence. Length; ++i) {assetbundle.loadfromfile (System.IO.Path.Combine (dir, dependence[i])); //Note: Manual loadasset is not required here//just load Assetbundle to//asset will load automatically when other associated asset are loaded        }        varbundle =assetbundle.loadfromfile (System.IO.Path.Combine (dir, bundlename)); varAsset = bundle. Loadasset ("Cube1"); Go= gameobject.instantiate (Asset) asGameobject; }}

Unity5 Assetbundle Series--loading and unloading of resources and use of assetbundlemanifest