Skip to content

Instantly share code, notes, and snippets.

@MobiDevelop

MobiDevelop/ArchiveFileHandle.java

Created May 3, 2013 21:28
Show Gist options
  • Save MobiDevelop/5514357 to your computer and use it in GitHub Desktop.
Save MobiDevelop/5514357 to your computer and use it in GitHub Desktop.
Download ZIP
A ZipFile-based FileHandle implementation for LibGDX.
Raw
README.md

This is a ZipFile-based FileHandle implementation for LibGDX.

Raw
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();
}
}
Raw
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);
}
}
Raw
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;
}
}
@Arijitofficial
Copy link

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.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment