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listing all classes after multidex http://xudshen.info/2014/11/12/list-all-classes-after-multidex/
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package info.xudshen.test; | |
import android.content.Context; | |
import android.content.SharedPreferences; | |
import android.content.pm.ApplicationInfo; | |
import android.content.pm.PackageManager; | |
import android.os.Build; | |
import java.io.File; | |
import java.io.IOException; | |
import java.util.ArrayList; | |
import java.util.Enumeration; | |
import java.util.List; | |
import dalvik.system.DexFile; | |
/** | |
* Created by xudshen@hotmail.com on 14/11/13. | |
*/ | |
public class MultiDexHelper { | |
private static final String EXTRACTED_NAME_EXT = ".classes"; | |
private static final String EXTRACTED_SUFFIX = ".zip"; | |
private static final String SECONDARY_FOLDER_NAME = "code_cache" + File.separator + | |
"secondary-dexes"; | |
private static final String PREFS_FILE = "multidex.version"; | |
private static final String KEY_DEX_NUMBER = "dex.number"; | |
private static SharedPreferences getMultiDexPreferences(Context context) { | |
return context.getSharedPreferences(PREFS_FILE, | |
Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB | |
? Context.MODE_PRIVATE | |
: Context.MODE_PRIVATE | Context.MODE_MULTI_PROCESS); | |
} | |
/** | |
* get all the dex path | |
* | |
* @param context the application context | |
* @return all the dex path | |
* @throws PackageManager.NameNotFoundException | |
* @throws IOException | |
*/ | |
public static List<String> getSourcePaths(Context context) throws PackageManager.NameNotFoundException, IOException { | |
ApplicationInfo applicationInfo = context.getPackageManager().getApplicationInfo(context.getPackageName(), 0); | |
File sourceApk = new File(applicationInfo.sourceDir); | |
File dexDir = new File(applicationInfo.dataDir, SECONDARY_FOLDER_NAME); | |
List<String> sourcePaths = new ArrayList<String>(); | |
sourcePaths.add(applicationInfo.sourceDir); //add the default apk path | |
//the prefix of extracted file, ie: test.classes | |
String extractedFilePrefix = sourceApk.getName() + EXTRACTED_NAME_EXT; | |
//the total dex numbers | |
int totalDexNumber = getMultiDexPreferences(context).getInt(KEY_DEX_NUMBER, 1); | |
for (int secondaryNumber = 2; secondaryNumber <= totalDexNumber; secondaryNumber++) { | |
//for each dex file, ie: test.classes2.zip, test.classes3.zip... | |
String fileName = extractedFilePrefix + secondaryNumber + EXTRACTED_SUFFIX; | |
File extractedFile = new File(dexDir, fileName); | |
if (extractedFile.isFile()) { | |
sourcePaths.add(extractedFile.getAbsolutePath()); | |
//we ignore the verify zip part | |
} else { | |
throw new IOException("Missing extracted secondary dex file '" + | |
extractedFile.getPath() + "'"); | |
} | |
} | |
return sourcePaths; | |
} | |
/** | |
* get all the classes name in "classes.dex", "classes2.dex", .... | |
* | |
* @param context the application context | |
* @return all the classes name | |
* @throws PackageManager.NameNotFoundException | |
* @throws IOException | |
*/ | |
public static List<String> getAllClasses(Context context) throws PackageManager.NameNotFoundException, IOException { | |
List<String> classNames = new ArrayList<String>(); | |
for (String path : getSourcePaths(context)) { | |
try { | |
DexFile dexfile = null; | |
if (path.endsWith(EXTRACTED_SUFFIX)) { | |
//NOT use new DexFile(path), because it will throw "permission error in /data/dalvik-cache" | |
dexfile = DexFile.loadDex(path, path + ".tmp", 0); | |
} else { | |
dexfile = new DexFile(path); | |
} | |
Enumeration<String> dexEntries = dexfile.entries(); | |
while (dexEntries.hasMoreElements()) { | |
classNames.add(dexEntries.nextElement()); | |
} | |
} catch (IOException e) { | |
throw new IOException("Error at loading dex file '" + | |
path + "'"); | |
} | |
} | |
return classNames; | |
} | |
} |
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