jMonkeyEngine/engine/src/android/com/jme3/asset/plugins/AndroidLocator.java

package com.jme3.asset.plugins;

import android.content.res.Resources;
import com.jme3.asset.AssetInfo;
import com.jme3.asset.AssetKey;
import com.jme3.asset.AssetLocator;
import com.jme3.system.JmeSystem;
import java.io.IOException;
import java.io.InputStream;
import java.util.logging.Level;
import java.util.logging.Logger;

public class AndroidLocator implements AssetLocator {

    private static final Logger logger = Logger.getLogger(AndroidLocator.class.getName());
    private Resources resources;
    private android.content.res.AssetManager androidManager;
    private String rootPath = "";

    private class AndroidAssetInfo extends AssetInfo {

        private final InputStream in;

        public AndroidAssetInfo(com.jme3.asset.AssetManager manager, AssetKey<?> key, InputStream in)
        {
            super(manager, key);
            this.in = in;
        }

        @Override
        public InputStream openStream() {
            return in;
        }
    }


    public AndroidLocator()
    {
        resources = JmeSystem.getResources();
        androidManager = resources.getAssets();
    }
    
    public void setRootPath(String rootPath) 
    {
        this.rootPath = rootPath;
    }

    @SuppressWarnings("rawtypes")
    @Override
    public AssetInfo locate(com.jme3.asset.AssetManager manager, AssetKey key) 
    {
        InputStream in = null;
        String sAssetPath = rootPath + key.getName();
        // Fix path issues
        if (sAssetPath.startsWith("/"))
        {
            // Remove leading /
            sAssetPath = sAssetPath.substring(1);
        }
        sAssetPath = sAssetPath.replace("//", "/");
        try {      
            in = androidManager.open(sAssetPath);
            if (in == null)
                return null;

            return new AndroidAssetInfo(manager, key, in);
        } 
        catch (IOException ex) 
        {
            //logger.log(Level.WARNING, "Failed to locate {0} ", sAssetPath);
        }
        return null;
    }

}