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Merge pull request libgdx#3408 from sarkanyi/master
Add APK expansion support
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83
backends/gdx-backend-android/src/com/badlogic/gdx/backends/android/APKExpansionSupport.java
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| /* | ||
| * Copyright (C) 2012 The Android Open Source Project | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package com.badlogic.gdx.backends.android; | ||
|
|
||
| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.util.Vector; | ||
|
|
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| import android.content.Context; | ||
| import android.os.Environment; | ||
|
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| public class APKExpansionSupport { | ||
| // The shared path to all app expansion files | ||
| private final static String EXP_PATH = "/Android/obb/"; | ||
|
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| static String[] getAPKExpansionFiles(Context ctx, int mainVersion, | ||
| int patchVersion) { | ||
| String packageName = ctx.getPackageName(); | ||
| Vector<String> ret = new Vector<String>(); | ||
| if (Environment.getExternalStorageState().equals( | ||
| Environment.MEDIA_MOUNTED)) { | ||
| // Build the full path to the app's expansion files | ||
| File root = Environment.getExternalStorageDirectory(); | ||
| File expPath = new File(root.toString() + EXP_PATH + packageName); | ||
|
|
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| // Check that expansion file path exists | ||
| if (expPath.exists()) { | ||
| if (mainVersion > 0) { | ||
| String strMainPath = expPath + File.separator + "main." | ||
| + mainVersion + "." + packageName + ".obb"; | ||
| File main = new File(strMainPath); | ||
| if (main.isFile()) { | ||
| ret.add(strMainPath); | ||
| } | ||
| } | ||
| if (patchVersion > 0) { | ||
| String strPatchPath = expPath + File.separator + "patch." | ||
| + mainVersion + "." + packageName + ".obb"; | ||
| File main = new File(strPatchPath); | ||
| if (main.isFile()) { | ||
| ret.add(strPatchPath); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| String[] retArray = new String[ret.size()]; | ||
| ret.toArray(retArray); | ||
| return retArray; | ||
| } | ||
|
|
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| static public ZipResourceFile getResourceZipFile(String[] expansionFiles) | ||
| throws IOException { | ||
| ZipResourceFile apkExpansionFile = null; | ||
| for (String expansionFilePath : expansionFiles) { | ||
| if (null == apkExpansionFile) { | ||
| apkExpansionFile = new ZipResourceFile(expansionFilePath); | ||
| } else { | ||
| apkExpansionFile.addPatchFile(expansionFilePath); | ||
| } | ||
| } | ||
| return apkExpansionFile; | ||
| } | ||
|
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| static public ZipResourceFile getAPKExpansionZipFile(Context ctx, | ||
| int mainVersion, int patchVersion) throws IOException { | ||
| String[] expansionFiles = getAPKExpansionFiles(ctx, mainVersion, | ||
| patchVersion); | ||
| return getResourceZipFile(expansionFiles); | ||
| } | ||
| } |
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184 changes: 184 additions & 0 deletions
184
backends/gdx-backend-android/src/com/badlogic/gdx/backends/android/AndroidZipFileHandle.java
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| /******************************************************************************* | ||
| * Copyright 2011 See AUTHORS file. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| ******************************************************************************/ | ||
|
|
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| package com.badlogic.gdx.backends.android; | ||
|
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| import java.io.*; | ||
|
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| import android.content.res.AssetFileDescriptor; | ||
|
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| import com.badlogic.gdx.Gdx; | ||
| import com.badlogic.gdx.Files.FileType; | ||
| import com.badlogic.gdx.backends.android.ZipResourceFile.ZipEntryRO; | ||
| import com.badlogic.gdx.files.FileHandle; | ||
| import com.badlogic.gdx.utils.GdxRuntimeException; | ||
|
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| /** @author sarkanyi */ | ||
| public class AndroidZipFileHandle extends AndroidFileHandle { | ||
| private AssetFileDescriptor assetFd; | ||
| private ZipResourceFile expansionFile; | ||
| private String path; | ||
|
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| public AndroidZipFileHandle(String fileName) { | ||
| super(null, fileName, FileType.Internal); | ||
| initialize(); | ||
| } | ||
|
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| public AndroidZipFileHandle(File file, FileType type) { | ||
| super(null, file, type); | ||
| initialize(); | ||
| } | ||
|
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| private void initialize() { | ||
| path = file.getPath().replace('\\', '/'); | ||
| expansionFile = ((AndroidFiles) Gdx.files).getExpansionFile(); | ||
| assetFd = expansionFile.getAssetFileDescriptor(getPath()); | ||
|
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| // needed for listing entries and exists() of directories | ||
| if (isDirectory()) | ||
| path += "/"; | ||
| } | ||
|
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| public AssetFileDescriptor getAssetFileDescriptor(String path) throws IOException { | ||
| return assetFd; | ||
| } | ||
|
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| private String getPath() { | ||
| return path; | ||
| } | ||
|
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| @Override | ||
| public InputStream read() { | ||
| InputStream input = null; | ||
|
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| try { | ||
| input = expansionFile.getInputStream(getPath()); | ||
| } catch (IOException ex) { | ||
| throw new GdxRuntimeException("Error reading file: " + file + " (ZipResourceFile)", ex); | ||
| } | ||
| return input; | ||
| } | ||
|
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| @Override | ||
| public FileHandle child(String name) { | ||
| if (file.getPath().length() == 0) | ||
| return new AndroidZipFileHandle(new File(name), type); | ||
| return new AndroidZipFileHandle(new File(file, name), type); | ||
| } | ||
|
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| @Override | ||
| public FileHandle sibling(String name) { | ||
| if (file.getPath().length() == 0) | ||
| throw new GdxRuntimeException("Cannot get the sibling of the root."); | ||
| return new AndroidZipFileHandle(new File(file.getParent(), name), type); | ||
| } | ||
|
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| @Override | ||
| public FileHandle parent() { | ||
| File parent = file.getParentFile(); | ||
| if (parent == null) | ||
| parent = new File(""); | ||
| return new AndroidZipFileHandle(parent.getPath()); | ||
| } | ||
|
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| @Override | ||
| public FileHandle[] list() { | ||
| ZipEntryRO[] zipEntries = expansionFile.getEntriesAt(getPath()); | ||
| FileHandle[] handles = new FileHandle[zipEntries.length]; | ||
| for (int i = 0, n = handles.length; i < n; i++) | ||
| handles[i] = new AndroidZipFileHandle(zipEntries[i].mFileName); | ||
| return handles; | ||
| } | ||
|
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| @Override | ||
| public FileHandle[] list(FileFilter filter) { | ||
| ZipEntryRO[] zipEntries = expansionFile.getEntriesAt(getPath()); | ||
| FileHandle[] handles = new FileHandle[zipEntries.length]; | ||
| int count = 0; | ||
| for (int i = 0, n = handles.length; i < n; i++) { | ||
| FileHandle child = new AndroidZipFileHandle(zipEntries[i].mFileName); | ||
| if (!filter.accept(child.file())) | ||
| continue; | ||
| handles[count] = child; | ||
| count++; | ||
| } | ||
| if (count < zipEntries.length) { | ||
| FileHandle[] newHandles = new FileHandle[count]; | ||
| System.arraycopy(handles, 0, newHandles, 0, count); | ||
| handles = newHandles; | ||
| } | ||
| return handles; | ||
| } | ||
|
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| @Override | ||
| public FileHandle[] list(FilenameFilter filter) { | ||
| ZipEntryRO[] zipEntries = expansionFile.getEntriesAt(getPath()); | ||
| FileHandle[] handles = new FileHandle[zipEntries.length]; | ||
| int count = 0; | ||
| for (int i = 0, n = handles.length; i < n; i++) { | ||
| String path = zipEntries[i].mFileName; | ||
| if (!filter.accept(file, path)) | ||
| continue; | ||
| handles[count] = new AndroidZipFileHandle(path); | ||
| count++; | ||
| } | ||
| if (count < zipEntries.length) { | ||
| FileHandle[] newHandles = new FileHandle[count]; | ||
| System.arraycopy(handles, 0, newHandles, 0, count); | ||
| handles = newHandles; | ||
| } | ||
| return handles; | ||
| } | ||
|
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| @Override | ||
| public FileHandle[] list(String suffix) { | ||
| ZipEntryRO[] zipEntries = expansionFile.getEntriesAt(getPath()); | ||
| FileHandle[] handles = new FileHandle[zipEntries.length]; | ||
| int count = 0; | ||
| for (int i = 0, n = handles.length; i < n; i++) { | ||
| String path = zipEntries[i].mFileName; | ||
| if (!path.endsWith(suffix)) | ||
| continue; | ||
| handles[count] = new AndroidZipFileHandle(path); | ||
| count++; | ||
| } | ||
| if (count < zipEntries.length) { | ||
| FileHandle[] newHandles = new FileHandle[count]; | ||
| System.arraycopy(handles, 0, newHandles, 0, count); | ||
| handles = newHandles; | ||
| } | ||
| return handles; | ||
| } | ||
|
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| @Override | ||
| public boolean isDirectory() { | ||
| return assetFd == null; | ||
| } | ||
|
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| @Override | ||
| public long length() { | ||
| try { | ||
| return getAssetFileDescriptor("").getLength(); | ||
| } catch (IOException e) { | ||
| } | ||
| return 0; | ||
| } | ||
|
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| @Override | ||
| public boolean exists() { | ||
| return expansionFile.getEntriesAt(getPath()).length != 0; | ||
| } | ||
| } |
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