A ZipFile-based FileHandle implementation for LibGDX.

README.md

This is a ZipFile-based FileHandle implementation for LibGDX.

ArchiveFileHandle.java

package com.mobidevelop.gdx.examples;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

import com.badlogic.gdx.Files.FileType;
import com.badlogic.gdx.files.FileHandle;
import com.badlogic.gdx.utils.GdxRuntimeException;

public class ArchiveFileHandle extends FileHandle {

  final ZipFile archive;
	final ZipEntry archiveEntry;
	
	public ArchiveFileHandle (ZipFile archive, File file) {
		super(file, FileType.Classpath);
		this.archive = archive;
		archiveEntry = this.archive.getEntry(file.getPath());
	}
	
	public ArchiveFileHandle (ZipFile archive, String fileName) {
		super(fileName.replace('\\', '/'), FileType.Classpath);
		this.archive = archive;
		this.archiveEntry = archive.getEntry(fileName.replace('\\', '/'));
	}

	@Override
	public FileHandle child (String name) {
		name = name.replace('\\', '/');
		if (file.getPath().length() == 0) return new ArchiveFileHandle(archive, new File(name));
		return new ArchiveFileHandle(archive, new File(file, name));
	}

	@Override
	public FileHandle sibling (String name) {
		name = name.replace('\\', '/');
		if (file.getPath().length() == 0) throw new GdxRuntimeException("Cannot get the sibling of the root.");
		return new ArchiveFileHandle(archive, new File(file.getParent(), name));
	}

	@Override
	public FileHandle parent () {
		File parent = file.getParentFile();
		if (parent == null) {
			if (type == FileType.Absolute)
				parent = new File("/");
			else
				parent = new File("");
		}
		return new ArchiveFileHandle(archive, parent);
	}
	
	@Override
	public InputStream read () {
		try {
			return archive.getInputStream(archiveEntry);
		} catch (IOException e) {
			throw new GdxRuntimeException("File not found: " + file + " (Archive)");
		}
	}
	
	@Override
	public boolean exists() {
		return archiveEntry != null;		
	}

	@Override
	public long length () {
		return archiveEntry.getSize();
	}

	@Override
	public long lastModified () {
		return archiveEntry.getTime();
	}
	
}

ArchiveFileHandleResolver.java

package com.mobidevelop.gdx.examples;

import java.util.zip.ZipFile;

import com.badlogic.gdx.assets.loaders.FileHandleResolver;
import com.badlogic.gdx.files.FileHandle;

public class ArchiveFileHandleResolver implements FileHandleResolver {

  private final ZipFile archive;
	
	public ArchiveFileHandleResolver (ZipFile archive) {
		this.archive = archive;
	}
	
	@Override
	public FileHandle resolve (String fileName) {
		return new ArchiveFileHandle(archive, fileName);
	}

}

ArchiveFileHandleResolverTest.java

package com.mobidevelop.gdx.examples;

import java.io.IOException;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.assets.AssetManager;
import com.badlogic.gdx.graphics.GL10;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.maps.tiled.TiledMap;
import com.badlogic.gdx.maps.tiled.TiledMapRenderer;
import com.badlogic.gdx.maps.tiled.TmxMapLoader;
import com.badlogic.gdx.maps.tiled.renderers.OrthogonalTiledMapRenderer;
import com.badlogic.gdx.tests.utils.GdxTest;
import com.badlogic.gdx.tests.utils.OrthoCamController;

public class ArchiveFileHandleResolverTest extends GdxTest {

  
	private TiledMap map;
	private TiledMapRenderer renderer;
	private OrthographicCamera camera;
	private OrthoCamController cameraController;
	private AssetManager assetManager;
	private BitmapFont font;
	private SpriteBatch batch;
	
	@Override
	public void create() {		
		float w = Gdx.graphics.getWidth();
		float h = Gdx.graphics.getHeight();
		
		camera = new OrthographicCamera();
		camera.setToOrtho(false, (w / h) * 10, 10);
		camera.zoom = 2;
		camera.update();
		
		cameraController = new OrthoCamController(camera);
		Gdx.input.setInputProcessor(cameraController);
	
		font = new BitmapFont();
		batch = new SpriteBatch();
		
		try {
			ZipFile archive = new ZipFile(Gdx.files.internal("test.zip").file());
			ArchiveFileHandleResolver resolver = new ArchiveFileHandleResolver(archive);			
			assetManager = new AssetManager(resolver);
			assetManager.setLoader(TiledMap.class, new TmxMapLoader(resolver));
			assetManager.load("tmx/level1.tmx", TiledMap.class);
			assetManager.finishLoading();
			map = assetManager.get("tmx/level1.tmx");
			renderer = new OrthogonalTiledMapRenderer(map, 1f / 16f);
			
		} catch (ZipException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	@Override
	public void render() {
		Gdx.gl.glClearColor(100f / 255f, 100f / 255f, 250f / 255f, 1f);
		Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
		camera.update();
		renderer.setView(camera);
		renderer.render();
		batch.begin();
		font.draw(batch, "FPS: " + Gdx.graphics.getFramesPerSecond(), 10, 20); 
		batch.end();
	}
	
	@Override
	public boolean needsGL20 () {
		return true;
	}

}

Hello. It works on the desktop but does not work on Android.
I am using the following code:

try {
      FileHandle fileHandle = Gdx.files.internal("data.zip");
      Gdx.app.log("Assets", "exists = "+fileHandle.exists()+" / "+fileHandle.file().exists());
      archive = new ZipFile(fileHandle.file());
} catch (IOException e) {
      e.printStackTrace();
}

and getting an error:

I/Assets: exists = true / false
W/System.err: java.io.FileNotFoundException: data.zip: open failed: ENOENT (No such file or directory)
        at libcore.io.IoBridge.open(IoBridge.java:456)
        at java.io.RandomAccessFile.<init>(RandomAccessFile.java:117)
        at java.io.RandomAccessFile.<init>(RandomAccessFile.java:149)
        at java.util.zip.ZipFile.<init>(ZipFile.java:158)
        at java.util.zip.ZipFile.<init>(ZipFile.java:119)
        at com.android.miscellaneous.assets.Assets.getFileResolver(Assets.java:52)
        at com.android.miscellaneous.assets.Assets.getInstance(Assets.java:35)
        at com.android.EngineCore.create(EngineCore.java:121)
        at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:311)
        at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1520)
        at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1248)
    Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
        at libcore.io.Posix.open(Native Method)
        at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
        at libcore.io.IoBridge.open(IoBridge.java:442)
    	... 10 more

How can I fix this issue?

حسنا

Hello. It works on the desktop but does not work on Android. I am using the following code:

try {
      FileHandle fileHandle = Gdx.files.internal("data.zip");
      Gdx.app.log("Assets", "exists = "+fileHandle.exists()+" / "+fileHandle.file().exists());
      archive = new ZipFile(fileHandle.file());
} catch (IOException e) {
      e.printStackTrace();
}

and getting an error:

I/Assets: exists = true / false
W/System.err: java.io.FileNotFoundException: data.zip: open failed: ENOENT (No such file or directory)
        at libcore.io.IoBridge.open(IoBridge.java:456)
        at java.io.RandomAccessFile.<init>(RandomAccessFile.java:117)
        at java.io.RandomAccessFile.<init>(RandomAccessFile.java:149)
        at java.util.zip.ZipFile.<init>(ZipFile.java:158)
        at java.util.zip.ZipFile.<init>(ZipFile.java:119)
        at com.android.miscellaneous.assets.Assets.getFileResolver(Assets.java:52)
        at com.android.miscellaneous.assets.Assets.getInstance(Assets.java:35)
        at com.android.EngineCore.create(EngineCore.java:121)
        at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:311)
        at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1520)
        at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1248)
    Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
        at libcore.io.Posix.open(Native Method)
        at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
        at libcore.io.IoBridge.open(IoBridge.java:442)
    	... 10 more

How can I fix this issue?

I think data.zip doesn't exist, "test.zip" is used in the example above.