diff --git a/build.gradle b/build.gradle
index 4a8f1cf..5a93315 100755
--- a/build.gradle
+++ b/build.gradle
@@ -2,7 +2,7 @@
 apply plugin: 'java-library'
 
 group 'com.reandroid.lib.arsc'
-version '1.0.6'
+version '1.0.7'
 
 java {
     sourceCompatibility JavaVersion.VERSION_1_8
diff --git a/src/main/java/com/reandroid/lib/apk/ApkBundle.java b/src/main/java/com/reandroid/lib/apk/ApkBundle.java
new file mode 100644
index 0000000..ccf9192
--- /dev/null
+++ b/src/main/java/com/reandroid/lib/apk/ApkBundle.java
@@ -0,0 +1,129 @@
+package com.reandroid.lib.apk;
+
+import com.reandroid.archive.APKArchive;
+import com.reandroid.lib.arsc.chunk.TableBlock;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.*;
+
+public class ApkBundle {
+    private final Map<String, ApkModule> mModulesMap;
+    private APKLogger apkLogger;
+    public ApkBundle(){
+        this.mModulesMap=new HashMap<>();
+    }
+
+    public ApkModule mergeModules() throws IOException {
+        List<ApkModule> moduleList=getApkModuleList();
+        if(moduleList.size()==0){
+            throw new FileNotFoundException("Nothing to merge, empty modules");
+        }
+        ApkModule result=new ApkModule("merged", new APKArchive());
+        result.setAPKLogger(apkLogger);
+        ApkModule base=getBaseModule();
+        if(base==null){
+            base=getLargestTableModule();
+        }
+        result.merge(base);
+        for(ApkModule module:moduleList){
+            if(module==base){
+                continue;
+            }
+            result.merge(module);
+        }
+        if(result.hasTableBlock()){
+            TableBlock tableBlock=result.getTableBlock();
+            tableBlock.sortPackages();
+            tableBlock.refresh();
+        }
+        result.sortApkFiles();
+        return result;
+    }
+    private ApkModule getLargestTableModule() throws IOException {
+        ApkModule apkModule=null;
+        int chunkSize=0;
+        for(ApkModule module:getApkModuleList()){
+            if(!module.hasTableBlock()){
+                continue;
+            }
+            TableBlock tableBlock=module.getTableBlock();
+            int size=tableBlock.getHeaderBlock().getChunkSize();
+            if(apkModule==null || size>chunkSize){
+                chunkSize=size;
+                apkModule=module;
+            }
+        }
+        return apkModule;
+    }
+    public ApkModule getBaseModule(){
+        for(ApkModule module:getApkModuleList()){
+            if(module.isBaseModule()){
+                return module;
+            }
+        }
+        return null;
+    }
+    public List<ApkModule> getApkModuleList(){
+        return new ArrayList<>(mModulesMap.values());
+    }
+    public void loadApkDirectory(File dir) throws IOException {
+        if(!dir.isDirectory()){
+            throw new FileNotFoundException("No such directory: "+dir);
+        }
+        List<File> apkList=ApkUtil.listFiles(dir, ".apk");
+        if(apkList.size()==0){
+            throw new FileNotFoundException("No '*.apk' files in directory: "+dir);
+        }
+        logMessage("Found apk files: "+apkList.size());
+        for(File file:apkList){
+            logVerbose("Loading: "+file.getName());
+            String name=ApkUtil.toModuleName(file);
+            ApkModule module=ApkModule.loadApkFile(file, name);
+            module.setAPKLogger(apkLogger);
+            addModule(module);
+        }
+    }
+    public void addModule(ApkModule apkModule){
+        String name=apkModule.getModuleName();
+        mModulesMap.remove(name);
+        mModulesMap.put(name, apkModule);
+    }
+    public boolean containsApkModule(String moduleName){
+        return mModulesMap.containsKey(moduleName);
+    }
+    public ApkModule removeApkModule(String moduleName){
+        return mModulesMap.remove(moduleName);
+    }
+    public ApkModule getApkModule(String moduleName){
+        return mModulesMap.get(moduleName);
+    }
+    public List<String> listModuleNames(){
+        return new ArrayList<>(mModulesMap.keySet());
+    }
+    public int countModules(){
+        return mModulesMap.size();
+    }
+    public Collection<ApkModule> getModules(){
+        return mModulesMap.values();
+    }
+    public void setAPKLogger(APKLogger logger) {
+        this.apkLogger = logger;
+    }
+    private void logMessage(String msg) {
+        if(apkLogger!=null){
+            apkLogger.logMessage(msg);
+        }
+    }
+    private void logError(String msg, Throwable tr) {
+        if(apkLogger!=null){
+            apkLogger.logError(msg, tr);
+        }
+    }
+    private void logVerbose(String msg) {
+        if(apkLogger!=null){
+            apkLogger.logVerbose(msg);
+        }
+    }
+}
diff --git a/src/main/java/com/reandroid/lib/apk/ApkModule.java b/src/main/java/com/reandroid/lib/apk/ApkModule.java
index d0adc39..265329c 100644
--- a/src/main/java/com/reandroid/lib/apk/ApkModule.java
+++ b/src/main/java/com/reandroid/lib/apk/ApkModule.java
@@ -2,6 +2,7 @@ package com.reandroid.lib.apk;
 
 import com.reandroid.archive.*;
 import com.reandroid.lib.arsc.array.PackageArray;
+import com.reandroid.lib.arsc.chunk.BaseChunk;
 import com.reandroid.lib.arsc.chunk.PackageBlock;
 import com.reandroid.lib.arsc.chunk.TableBlock;
 import com.reandroid.lib.arsc.chunk.xml.AndroidManifestBlock;
@@ -30,6 +31,16 @@ public class ApkModule {
         this.mUncompressedFiles=new UncompressedFiles();
         this.mUncompressedFiles.addPath(apkArchive);
     }
+    public List<DexFileInputSource> listDexFiles(){
+        List<DexFileInputSource> results=new ArrayList<>();
+        for(InputSource source:getApkArchive().listInputSources()){
+            if(DexFileInputSource.isDexName(source.getAlias())){
+                results.add(new DexFileInputSource(source.getAlias(), source));
+            }
+        }
+        DexFileInputSource.sort(results);
+        return results;
+    }
     public boolean isBaseModule(){
         if(!hasAndroidManifestBlock()){
             return false;
@@ -223,6 +234,9 @@ public class ApkModule {
             tableBlock=((SplitJsonTableInputSource)inputSource).getTableBlock();
         }else if(inputSource instanceof SingleJsonTableInputSource){
             tableBlock=((SingleJsonTableInputSource)inputSource).getTableBlock();
+        }else if(inputSource instanceof BlockInputSource){
+            BaseChunk block = ((BlockInputSource<?>) inputSource).getBlock();
+            tableBlock=(TableBlock) block;
         }else {
             InputStream inputStream = inputSource.openStream();
             if(loadDefaultFramework){
@@ -246,6 +260,78 @@ public class ApkModule {
         this.loadDefaultFramework = loadDefaultFramework;
     }
 
+    public void merge(ApkModule module) throws IOException {
+        if(module==null||module==this){
+            return;
+        }
+        logMessage("Merging: "+module.getModuleName());
+        mergeDexFiles(module);
+        mergeTable(module);
+        mergeFiles(module);
+        getUncompressedFiles().merge(module.getUncompressedFiles());
+    }
+    private void mergeTable(ApkModule module) throws IOException {
+        if(!module.hasTableBlock()){
+            return;
+        }
+        logMessage("Merging resource table: "+module.getModuleName());
+        TableBlock exist;
+        if(!hasTableBlock()){
+            exist=new TableBlock();
+            BlockInputSource<TableBlock> inputSource=new BlockInputSource<>(TableBlock.FILE_NAME, exist);
+            getApkArchive().add(inputSource);
+        }else{
+            exist=getTableBlock();
+        }
+        TableBlock coming=module.getTableBlock();
+        exist.merge(coming);
+    }
+    private void mergeFiles(ApkModule module) throws IOException {
+        APKArchive archiveExist = getApkArchive();
+        APKArchive archiveComing = module.getApkArchive();
+        Map<String, InputSource> comingAlias=ApkUtil.toAliasMap(archiveComing.listInputSources());
+        Map<String, InputSource> existAlias=ApkUtil.toAliasMap(archiveExist.listInputSources());
+        UncompressedFiles uf=getUncompressedFiles();
+        for(InputSource inputSource:comingAlias.values()){
+            if(existAlias.containsKey(inputSource.getAlias())||existAlias.containsKey(inputSource.getName())){
+                continue;
+            }
+            if(DexFileInputSource.isDexName(inputSource.getName())){
+                continue;
+            }
+            logVerbose("Added: "+inputSource.getAlias());
+            archiveExist.add(inputSource);
+            uf.addPath(inputSource);
+        }
+    }
+    private void mergeDexFiles(ApkModule module){
+        List<DexFileInputSource> existList=listDexFiles();
+        List<DexFileInputSource> comingList=module.listDexFiles();
+        APKArchive archive=getApkArchive();
+        int index=0;
+        if(existList.size()>0){
+            index=existList.get(existList.size()-1).getDexNumber();
+            if(index==0){
+                index=2;
+            }else {
+                index++;
+            }
+        }
+        for(DexFileInputSource source:comingList){
+            String name=DexFileInputSource.getDexName(index);
+            DexFileInputSource add=new DexFileInputSource(name, source.getInputSource());
+            archive.add(add);
+            logMessage("Added ["+module.getModuleName()+"] "
+                    +source.getAlias()+" -> "+name);
+            index++;
+            if(index==1){
+                index=2;
+            }
+        }
+    }
+    void sortApkFiles(){
+        sortApkFiles(new ArrayList<>(getApkArchive().listInputSources()));
+    }
     public void setAPKLogger(APKLogger logger) {
         this.apkLogger = logger;
     }
@@ -264,6 +350,10 @@ public class ApkModule {
             apkLogger.logVerbose(msg);
         }
     }
+    @Override
+    public String toString(){
+        return getModuleName();
+    }
     public static ApkModule loadApkFile(File apkFile) throws IOException {
         return loadApkFile(apkFile, ApkUtil.DEF_MODULE_NAME);
     }
@@ -271,4 +361,39 @@ public class ApkModule {
         APKArchive archive=APKArchive.loadZippedApk(apkFile);
         return new ApkModule(moduleName, archive);
     }
+    private static void sortApkFiles(List<InputSource> sourceList){
+        Comparator<InputSource> cmp=new Comparator<InputSource>() {
+            @Override
+            public int compare(InputSource in1, InputSource in2) {
+                return getSortName(in1).compareTo(getSortName(in2));
+            }
+        };
+        sourceList.sort(cmp);
+        int i=0;
+        for(InputSource inputSource:sourceList){
+            inputSource.setSort(i);
+            i++;
+        }
+    }
+    private static String getSortName(InputSource inputSource){
+        String name=inputSource.getAlias();
+        StringBuilder builder=new StringBuilder();
+        if(name.equals(AndroidManifestBlock.FILE_NAME)){
+            builder.append("0 ");
+        }else if(name.equals(TableBlock.FILE_NAME)){
+            builder.append("1 ");
+        }else if(name.startsWith("classes")){
+            builder.append("2 ");
+        }else if(name.startsWith("res/")){
+            builder.append("3 ");
+        }else if(name.startsWith("lib/")){
+            builder.append("4 ");
+        }else if(name.startsWith("assets/")){
+            builder.append("5 ");
+        }else {
+            builder.append("6 ");
+        }
+        builder.append(name.toLowerCase());
+        return builder.toString();
+    }
 }
diff --git a/src/main/java/com/reandroid/lib/apk/ApkUtil.java b/src/main/java/com/reandroid/lib/apk/ApkUtil.java
index a5b9dbf..d30a631 100644
--- a/src/main/java/com/reandroid/lib/apk/ApkUtil.java
+++ b/src/main/java/com/reandroid/lib/apk/ApkUtil.java
@@ -1,8 +1,9 @@
 package com.reandroid.lib.apk;
 
+import com.reandroid.archive.InputSource;
+
 import java.io.File;
-import java.util.ArrayList;
-import java.util.List;
+import java.util.*;
 
 public class ApkUtil {
     public static String replaceRootDir(String path, String dirName){
@@ -106,6 +107,21 @@ public class ApkUtil {
         }
         return results;
     }
+    public static String toModuleName(File file){
+        String name=file.getName();
+        int i=name.lastIndexOf('.');
+        if(i>0){
+            name=name.substring(0,i);
+        }
+        return name;
+    }
+    public static Map<String, InputSource> toAliasMap(Collection<InputSource> sourceList){
+        Map<String, InputSource> results=new HashMap<>();
+        for(InputSource inputSource:sourceList){
+            results.put(inputSource.getAlias(), inputSource);
+        }
+        return results;
+    }
     public static final String JSON_FILE_EXTENSION=".json";
     public static final String RES_JSON_NAME="res-json";
     public static final String ROOT_NAME="root";
diff --git a/src/main/java/com/reandroid/lib/apk/DexFileInputSource.java b/src/main/java/com/reandroid/lib/apk/DexFileInputSource.java
new file mode 100644
index 0000000..785656e
--- /dev/null
+++ b/src/main/java/com/reandroid/lib/apk/DexFileInputSource.java
@@ -0,0 +1,51 @@
+package com.reandroid.lib.apk;
+
+import com.reandroid.archive.InputSource;
+
+import java.util.Comparator;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class DexFileInputSource extends RenamedInputSource<InputSource> implements Comparable<DexFileInputSource>{
+    public DexFileInputSource(String name, InputSource inputSource){
+        super(name, inputSource);
+    }
+    public int getDexNumber(){
+        return getDexNumber(getAlias());
+    }
+    @Override
+    public int compareTo(DexFileInputSource source) {
+        return Integer.compare(getDexNumber(), source.getDexNumber());
+    }
+    public static void sort(List<DexFileInputSource> sourceList){
+        sourceList.sort(new Comparator<DexFileInputSource>() {
+            @Override
+            public int compare(DexFileInputSource s1, DexFileInputSource s2) {
+                return s1.compareTo(s2);
+            }
+        });
+    }
+    public static boolean isDexName(String name){
+        return getDexNumber(name)>=0;
+    }
+    static String getDexName(int i){
+        if(i==0){
+            return "classes.dex";
+        }
+        return "classes"+i+".dex";
+    }
+    static int getDexNumber(String name){
+        Matcher matcher=PATTERN.matcher(name);
+        if(!matcher.find()){
+            return -1;
+        }
+        String num=matcher.group(1);
+        if(num.length()==0){
+            return 0;
+        }
+        return Integer.parseInt(num);
+    }
+    private static final Pattern PATTERN=Pattern.compile("^classes([0-9]*)\\.dex$");
+
+}
diff --git a/src/main/java/com/reandroid/lib/apk/RenamedInputSource.java b/src/main/java/com/reandroid/lib/apk/RenamedInputSource.java
new file mode 100644
index 0000000..5fbc0b9
--- /dev/null
+++ b/src/main/java/com/reandroid/lib/apk/RenamedInputSource.java
@@ -0,0 +1,40 @@
+package com.reandroid.lib.apk;
+
+import com.reandroid.archive.InputSource;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+public class RenamedInputSource<T extends InputSource> extends InputSource {
+    private final T inputSource;
+    public RenamedInputSource(String name, T input){
+        super(name);
+        this.inputSource=input;
+        super.setMethod(input.getMethod());
+        super.setSort(input.getSort());
+    }
+    public T getInputSource() {
+        return inputSource;
+    }
+    @Override
+    public void close(InputStream inputStream) throws IOException {
+        getInputSource().close(inputStream);
+    }
+    @Override
+    public long getLength() throws IOException {
+        return getInputSource().getLength();
+    }
+    @Override
+    public long getCrc() throws IOException {
+        return getInputSource().getCrc();
+    }
+    @Override
+    public long write(OutputStream outputStream) throws IOException {
+        return getInputSource().write(outputStream);
+    }
+    @Override
+    public InputStream openStream() throws IOException {
+        return getInputSource().openStream();
+    }
+}
diff --git a/src/main/java/com/reandroid/lib/apk/TableBlockJsonBuilder.java b/src/main/java/com/reandroid/lib/apk/TableBlockJsonBuilder.java
index df18f4e..8832b51 100644
--- a/src/main/java/com/reandroid/lib/apk/TableBlockJsonBuilder.java
+++ b/src/main/java/com/reandroid/lib/apk/TableBlockJsonBuilder.java
@@ -30,6 +30,7 @@ public class TableBlockJsonBuilder {
         for(File pkgDir:pkgDirList){
             scanPackageDirectory(tableBlock, pkgDir);
         }
+        tableBlock.sortPackages();
         tableBlock.refresh();
         return tableBlock;
     }
diff --git a/src/main/java/com/reandroid/lib/apk/UncompressedFiles.java b/src/main/java/com/reandroid/lib/apk/UncompressedFiles.java
index 70bcf13..4022414 100644
--- a/src/main/java/com/reandroid/lib/apk/UncompressedFiles.java
+++ b/src/main/java/com/reandroid/lib/apk/UncompressedFiles.java
@@ -159,6 +159,17 @@ public class UncompressedFiles implements JSONConvert<JSONObject> {
             }
         }
     }
+    public void merge(UncompressedFiles uf){
+        if(uf==null||uf==this){
+            return;
+        }
+        for(String path: uf.mPathList){
+            addPath(path);
+        }
+        for(String ext:uf.mExtensionList){
+            addExtension(ext);
+        }
+    }
     public void fromJson(File jsonFile) throws IOException {
         if(!jsonFile.isFile()){
             return;
diff --git a/src/main/java/com/reandroid/lib/arsc/array/EntryBlockArray.java b/src/main/java/com/reandroid/lib/arsc/array/EntryBlockArray.java
index 0a77cbe..bb104cd 100755
--- a/src/main/java/com/reandroid/lib/arsc/array/EntryBlockArray.java
+++ b/src/main/java/com/reandroid/lib/arsc/array/EntryBlockArray.java
@@ -1,12 +1,18 @@
 package com.reandroid.lib.arsc.array;
 
+import com.reandroid.lib.arsc.chunk.TypeBlock;
 import com.reandroid.lib.arsc.item.IntegerArray;
 import com.reandroid.lib.arsc.item.IntegerItem;
+import com.reandroid.lib.arsc.value.BaseResValue;
 import com.reandroid.lib.arsc.value.EntryBlock;
+import com.reandroid.lib.arsc.value.ResValueInt;
+import com.reandroid.lib.arsc.value.ValueType;
 import com.reandroid.lib.json.JSONConvert;
 import com.reandroid.lib.json.JSONArray;
 import com.reandroid.lib.json.JSONObject;
 
+import java.util.Iterator;
+
 
 public class EntryBlockArray extends OffsetBlockArray<EntryBlock> implements JSONConvert<JSONArray> {
     public EntryBlockArray(IntegerArray offsets, IntegerItem itemCount, IntegerItem itemStart){
@@ -56,7 +62,6 @@ public class EntryBlockArray extends OffsetBlockArray<EntryBlock> implements JSO
         }
         return jsonArray;
     }
-
     @Override
     public void fromJson(JSONArray json) {
         clearChildes();
@@ -74,6 +79,34 @@ public class EntryBlockArray extends OffsetBlockArray<EntryBlock> implements JSO
         }
         refreshCountAndStart();
     }
+    public void merge(EntryBlockArray entryBlockArray){
+        if(entryBlockArray==null||entryBlockArray==this||entryBlockArray.isEmpty()){
+            return;
+        }
+        ensureSize(entryBlockArray.childesCount());
+        Iterator<EntryBlock> itr=entryBlockArray.iterator(true);
+        while (itr.hasNext()){
+            EntryBlock comingBlock=itr.next();
+            EntryBlock existingBlock=get(comingBlock.getIndex());
+            if(shouldMerge(existingBlock, comingBlock)){
+                existingBlock.merge(comingBlock);
+            }
+        }
+    }
+    private boolean shouldMerge(EntryBlock exist, EntryBlock coming){
+        if(exist.isNull()){
+            return true;
+        }
+        if(coming.isNull()){
+            return false;
+        }
+        BaseResValue resVal = coming.getResValue();
+        if(resVal instanceof ResValueInt){
+            ValueType valueType=((ResValueInt)resVal).getValueType();
+            return valueType!=ValueType.INT_BOOLEAN;
+        }
+        return true;
+    }
     @Override
     public String toString(){
         return getClass().getSimpleName()+": size="+childesCount();
diff --git a/src/main/java/com/reandroid/lib/arsc/array/LibraryInfoArray.java b/src/main/java/com/reandroid/lib/arsc/array/LibraryInfoArray.java
index 7e1efd9..d1a33b5 100755
--- a/src/main/java/com/reandroid/lib/arsc/array/LibraryInfoArray.java
+++ b/src/main/java/com/reandroid/lib/arsc/array/LibraryInfoArray.java
@@ -15,6 +15,25 @@ public class LibraryInfoArray extends BlockArray<LibraryInfo> implements JSONCon
     public LibraryInfoArray(IntegerItem infoCount){
         this.mInfoCount=infoCount;
     }
+    public LibraryInfo getOrCreate(int pkgId){
+        LibraryInfo info=getById(pkgId);
+        if(info!=null){
+            return info;
+        }
+        int index=childesCount();
+        ensureSize(index+1);
+        info=get(index);
+        info.setPackageId(pkgId);
+        return info;
+    }
+    public LibraryInfo getById(int pkgId){
+        for(LibraryInfo info:listItems()){
+            if(pkgId==info.getPackageId()){
+                return info;
+            }
+        }
+        return null;
+    }
     @Override
     public LibraryInfo newInstance() {
         return new LibraryInfo();
@@ -61,4 +80,13 @@ public class LibraryInfoArray extends BlockArray<LibraryInfo> implements JSONCon
             libraryInfo.fromJson(jsonObject);
         }
     }
+    public void merge(LibraryInfoArray infoArray){
+        if(infoArray==null||infoArray==this||infoArray.childesCount()==0){
+            return;
+        }
+        for(LibraryInfo info:infoArray.listItems()){
+            LibraryInfo exist=getOrCreate(info.getPackageId());
+            exist.merge(info);
+        }
+    }
 }
diff --git a/src/main/java/com/reandroid/lib/arsc/array/PackageArray.java b/src/main/java/com/reandroid/lib/arsc/array/PackageArray.java
index df2696b..219f745 100755
--- a/src/main/java/com/reandroid/lib/arsc/array/PackageArray.java
+++ b/src/main/java/com/reandroid/lib/arsc/array/PackageArray.java
@@ -11,14 +11,22 @@ import com.reandroid.lib.json.JSONArray;
 import com.reandroid.lib.json.JSONObject;
 
 import java.io.IOException;
+import java.util.Comparator;
 import java.util.Iterator;
 
-public class PackageArray extends BlockArray<PackageBlock> implements BlockLoad, JSONConvert<JSONArray> {
+public class PackageArray extends BlockArray<PackageBlock>
+        implements BlockLoad, JSONConvert<JSONArray>, Comparator<PackageBlock> {
     private final IntegerItem mPackageCount;
     public PackageArray(IntegerItem packageCount){
         this.mPackageCount=packageCount;
         mPackageCount.setBlockLoad(this);
     }
+    public void sort(){
+        for(PackageBlock packageBlock:listItems()){
+            packageBlock.sortTypes();
+        }
+        sort(this);
+    }
     public PackageBlock getOrCreate(byte pkgId){
         PackageBlock packageBlock=getPackageBlockById(pkgId);
         if(packageBlock!=null){
@@ -88,4 +96,17 @@ public class PackageArray extends BlockArray<PackageBlock> implements BlockLoad,
             packageBlock.fromJson(jsonObject);
         }
     }
+    public void merge(PackageArray packageArray){
+        if(packageArray==null||packageArray==this){
+            return;
+        }
+        for(PackageBlock packageBlock:packageArray.listItems()){
+            PackageBlock exist=getOrCreate((byte) packageBlock.getId());
+            exist.merge(packageBlock);
+        }
+    }
+    @Override
+    public int compare(PackageBlock p1, PackageBlock p2) {
+        return p1.compareTo(p2);
+    }
 }
diff --git a/src/main/java/com/reandroid/lib/arsc/array/ResValueBagItemArray.java b/src/main/java/com/reandroid/lib/arsc/array/ResValueBagItemArray.java
index 63d9fc7..ec3caaf 100755
--- a/src/main/java/com/reandroid/lib/arsc/array/ResValueBagItemArray.java
+++ b/src/main/java/com/reandroid/lib/arsc/array/ResValueBagItemArray.java
@@ -1,6 +1,7 @@
 package com.reandroid.lib.arsc.array;
 
 import com.reandroid.lib.arsc.base.BlockArray;
+import com.reandroid.lib.arsc.value.ResValueBag;
 import com.reandroid.lib.arsc.value.ResValueBagItem;
 import com.reandroid.lib.json.JSONConvert;
 import com.reandroid.lib.json.JSONArray;
@@ -22,6 +23,13 @@ public class ResValueBagItemArray extends BlockArray<ResValueBagItem> implements
     @Override
     protected void onRefreshed() {
 
+    }
+    @Override
+    public void clearChildes(){
+        for(ResValueBagItem bagItem:listItems()){
+            bagItem.onRemoved();
+        }
+        super.clearChildes();
     }
     @Override
     public JSONArray toJson() {
@@ -47,4 +55,17 @@ public class ResValueBagItemArray extends BlockArray<ResValueBagItem> implements
             get(i).fromJson(json.getJSONObject(i));
         }
     }
+    public void merge(ResValueBagItemArray bagItemArray){
+        if(bagItemArray==null||bagItemArray==this){
+            return;
+        }
+        clearChildes();
+        int count=bagItemArray.childesCount();
+        ensureSize(count);
+        for(int i=0;i<count;i++){
+            ResValueBagItem coming=bagItemArray.get(i);
+            ResValueBagItem exist=get(i);
+            exist.merge(coming);
+        }
+    }
 }
diff --git a/src/main/java/com/reandroid/lib/arsc/array/SpecTypePairArray.java b/src/main/java/com/reandroid/lib/arsc/array/SpecTypePairArray.java
index f68cf3e..9c86f12 100755
--- a/src/main/java/com/reandroid/lib/arsc/array/SpecTypePairArray.java
+++ b/src/main/java/com/reandroid/lib/arsc/array/SpecTypePairArray.java
@@ -1,6 +1,7 @@
 package com.reandroid.lib.arsc.array;
 
 import com.reandroid.lib.arsc.base.BlockArray;
+import com.reandroid.lib.arsc.chunk.PackageBlock;
 import com.reandroid.lib.arsc.chunk.TypeBlock;
 import com.reandroid.lib.arsc.container.SpecTypePair;
 import com.reandroid.lib.arsc.value.EntryBlock;
@@ -226,6 +227,18 @@ public class SpecTypePairArray extends BlockArray<SpecTypePair>
             specTypePair.fromJson(jsonObject);
         }
     }
+    public void merge(SpecTypePairArray pairArray){
+        if(pairArray==null || pairArray==this){
+            return;
+        }
+        for(SpecTypePair typePair:pairArray.listItems()){
+            if(typePair.isEmpty()){
+                continue;
+            }
+            SpecTypePair exist=getOrCreate(typePair.getTypeId());
+            exist.merge(typePair);
+        }
+    }
     @Override
     public int compare(SpecTypePair typePair1, SpecTypePair typePair2) {
         return typePair1.compareTo(typePair2);
diff --git a/src/main/java/com/reandroid/lib/arsc/array/StyleArray.java b/src/main/java/com/reandroid/lib/arsc/array/StyleArray.java
index 1051164..89fb1c6 100755
--- a/src/main/java/com/reandroid/lib/arsc/array/StyleArray.java
+++ b/src/main/java/com/reandroid/lib/arsc/array/StyleArray.java
@@ -58,16 +58,27 @@ public class StyleArray extends OffsetBlockArray<StyleItem> implements JSONConve
     public JSONArray toJson() {
         if(childesCount()==0){
             return null;
-        }
-        int i=0;
-        for(StyleItem styleItem:listItems()){
-
         }
         return null;
     }
     @Override
     public void fromJson(JSONArray json) {
 
+    }
+    public void merge(StyleArray styleArray){
+        if(styleArray==null||styleArray==this){
+            return;
+        }
+        if(childesCount()!=0){
+            return;
+        }
+        int count=styleArray.childesCount();
+        ensureSize(count);
+        for(int i=0;i<count;i++){
+            StyleItem exist=get(i);
+            StyleItem coming=styleArray.get(i);
+            exist.merge(coming);
+        }
     }
     private static final byte END_BYTE= (byte) 0xFF;
 }
diff --git a/src/main/java/com/reandroid/lib/arsc/array/TypeBlockArray.java b/src/main/java/com/reandroid/lib/arsc/array/TypeBlockArray.java
index f57c115..ab15340 100755
--- a/src/main/java/com/reandroid/lib/arsc/array/TypeBlockArray.java
+++ b/src/main/java/com/reandroid/lib/arsc/array/TypeBlockArray.java
@@ -5,6 +5,7 @@ import com.reandroid.lib.arsc.base.Block;
 import com.reandroid.lib.arsc.base.BlockArray;
 import com.reandroid.lib.arsc.chunk.SpecBlock;
 import com.reandroid.lib.arsc.chunk.TypeBlock;
+import com.reandroid.lib.arsc.container.SpecTypePair;
 import com.reandroid.lib.arsc.header.HeaderBlock;
 import com.reandroid.lib.arsc.io.BlockReader;
 import com.reandroid.lib.arsc.item.TypeString;
@@ -277,6 +278,15 @@ public class TypeBlockArray extends BlockArray<TypeBlock>
             typeBlock.fromJson(jsonObject);
         }
     }
+    public void merge(TypeBlockArray typeBlockArray){
+        if(typeBlockArray==null||typeBlockArray==this){
+            return;
+        }
+        for(TypeBlock typeBlock:typeBlockArray.listItems()){
+            TypeBlock block=getOrCreate(typeBlock.getResConfig());
+            block.merge(typeBlock);
+        }
+    }
     @Override
     public int compare(TypeBlock typeBlock1, TypeBlock typeBlock2) {
         return typeBlock1.compareTo(typeBlock2);
diff --git a/src/main/java/com/reandroid/lib/arsc/chunk/LibraryBlock.java b/src/main/java/com/reandroid/lib/arsc/chunk/LibraryBlock.java
index 27e0cae..4f34391 100755
--- a/src/main/java/com/reandroid/lib/arsc/chunk/LibraryBlock.java
+++ b/src/main/java/com/reandroid/lib/arsc/chunk/LibraryBlock.java
@@ -50,10 +50,15 @@ public class LibraryBlock extends BaseChunk {
         mLibCount.set(count);
         mLibraryInfoArray.setChildesCount(count);
     }
-
     @Override
     protected void onChunkRefreshed() {
         mLibCount.set(mLibraryInfoArray.childesCount());
     }
 
+    public void merge(LibraryBlock libraryBlock){
+        if(libraryBlock==null||libraryBlock==this){
+            return;
+        }
+        getLibraryInfoArray().merge(libraryBlock.getLibraryInfoArray());
+    }
 }
diff --git a/src/main/java/com/reandroid/lib/arsc/chunk/PackageBlock.java b/src/main/java/com/reandroid/lib/arsc/chunk/PackageBlock.java
index 7482b04..6048a2b 100755
--- a/src/main/java/com/reandroid/lib/arsc/chunk/PackageBlock.java
+++ b/src/main/java/com/reandroid/lib/arsc/chunk/PackageBlock.java
@@ -1,6 +1,7 @@
 package com.reandroid.lib.arsc.chunk;
 
 import com.reandroid.lib.arsc.array.LibraryInfoArray;
+import com.reandroid.lib.arsc.array.PackageArray;
 import com.reandroid.lib.arsc.array.SpecTypePairArray;
 import com.reandroid.lib.arsc.base.Block;
 import com.reandroid.lib.arsc.container.PackageLastBlocks;
@@ -24,7 +25,8 @@ import java.io.IOException;
 import java.util.*;
 
 
-public class PackageBlock extends BaseChunk implements BlockLoad, JSONConvert<JSONObject> {
+public class PackageBlock extends BaseChunk
+        implements BlockLoad, JSONConvert<JSONObject>, Comparable<PackageBlock> {
     private final IntegerItem mPackageId;
     private final PackageName mPackageName;
 
@@ -136,7 +138,7 @@ public class PackageBlock extends BaseChunk implements BlockLoad, JSONConvert<JS
         return mSpecTypePairArray;
     }
     public Collection<LibraryInfo> listLibraryInfo(){
-        return mLibraryBlock.listLibraryInfo();
+        return getLibraryBlock().listLibraryInfo();
     }
 
     public void addLibrary(LibraryBlock libraryBlock){
@@ -148,7 +150,10 @@ public class PackageBlock extends BaseChunk implements BlockLoad, JSONConvert<JS
         }
     }
     public void addLibraryInfo(LibraryInfo info){
-        mLibraryBlock.addLibraryInfo(info);
+        getLibraryBlock().addLibraryInfo(info);
+    }
+    private LibraryBlock getLibraryBlock(){
+        return mLibraryBlock;
     }
     public Set<Integer> listResourceIds(){
         return mEntriesGroup.keySet();
@@ -291,6 +296,22 @@ public class PackageBlock extends BaseChunk implements BlockLoad, JSONConvert<JS
         LibraryInfoArray libraryInfoArray = mLibraryBlock.getLibraryInfoArray();
         libraryInfoArray.fromJson(json.optJSONArray(NAME_libraries));
     }
+    public void merge(PackageBlock packageBlock){
+        if(packageBlock==null||packageBlock==this){
+            return;
+        }
+        if(getId()!=packageBlock.getId()){
+            throw new IllegalArgumentException("Can not merge different id packages: "
+                    +getId()+"!="+packageBlock.getId());
+        }
+        setName(packageBlock.getName());
+        getLibraryBlock().merge(packageBlock.getLibraryBlock());
+        getSpecTypePairArray().merge(packageBlock.getSpecTypePairArray());
+    }
+    @Override
+    public int compareTo(PackageBlock pkg) {
+        return Integer.compare(getId(), pkg.getId());
+    }
     @Override
     public String toString(){
         StringBuilder builder=new StringBuilder();
diff --git a/src/main/java/com/reandroid/lib/arsc/chunk/TableBlock.java b/src/main/java/com/reandroid/lib/arsc/chunk/TableBlock.java
index d5bf610..1292a5a 100755
--- a/src/main/java/com/reandroid/lib/arsc/chunk/TableBlock.java
+++ b/src/main/java/com/reandroid/lib/arsc/chunk/TableBlock.java
@@ -30,6 +30,9 @@ public class TableBlock extends BaseChunk implements JSONConvert<JSONObject> {
         addChild(mTableStringPool);
         addChild(mPackageArray);
     }
+    public void sortPackages(){
+        getPackageArray().sort();
+    }
     public Collection<PackageBlock> listPackages(){
         return getPackageArray().listItems();
     }
@@ -138,6 +141,16 @@ public class TableBlock extends BaseChunk implements JSONConvert<JSONObject> {
         getPackageArray().fromJson(json.getJSONArray(NAME_packages));
         refresh();
     }
+    public void merge(TableBlock tableBlock){
+        if(tableBlock==null||tableBlock==this){
+            return;
+        }
+        if(getPackageArray().childesCount()==0){
+            getTableStringPool().merge(tableBlock.getTableStringPool());
+        }
+        getPackageArray().merge(tableBlock.getPackageArray());
+        refresh();
+    }
     public static TableBlock loadWithAndroidFramework(InputStream inputStream) throws IOException{
         TableBlock tableBlock=load(inputStream);
         tableBlock.addFramework(Frameworks.getAndroid());
diff --git a/src/main/java/com/reandroid/lib/arsc/chunk/TypeBlock.java b/src/main/java/com/reandroid/lib/arsc/chunk/TypeBlock.java
index a730915..f3649ee 100755
--- a/src/main/java/com/reandroid/lib/arsc/chunk/TypeBlock.java
+++ b/src/main/java/com/reandroid/lib/arsc/chunk/TypeBlock.java
@@ -1,6 +1,7 @@
 package com.reandroid.lib.arsc.chunk;
 
 import com.reandroid.lib.arsc.array.EntryBlockArray;
+import com.reandroid.lib.arsc.array.TypeBlockArray;
 import com.reandroid.lib.arsc.base.Block;
 import com.reandroid.lib.arsc.container.SpecTypePair;
 import com.reandroid.lib.arsc.item.IntegerArray;
@@ -138,6 +139,17 @@ public class TypeBlock extends BaseTypeBlock
         getEntryBlockArray().fromJson(json.getJSONArray("entries"));
         getResConfig().fromJson(json.getJSONObject("config"));
     }
+    public void merge(TypeBlock typeBlock){
+        if(typeBlock==null||typeBlock==this){
+            return;
+        }
+        if(getTypeId() != typeBlock.getTypeId()){
+            throw new IllegalArgumentException("Can not merge different id types: "
+                    +getTypeId()+"!="+typeBlock.getTypeId());
+        }
+        setTypeName(typeBlock.getTypeName());
+        getEntryBlockArray().merge(typeBlock.getEntryBlockArray());
+    }
     @Override
     public int compareTo(TypeBlock typeBlock) {
         int id1=getTypeId();
diff --git a/src/main/java/com/reandroid/lib/arsc/chunk/xml/AndroidManifestBlock.java b/src/main/java/com/reandroid/lib/arsc/chunk/xml/AndroidManifestBlock.java
index 354dd68..fcf8ccc 100644
--- a/src/main/java/com/reandroid/lib/arsc/chunk/xml/AndroidManifestBlock.java
+++ b/src/main/java/com/reandroid/lib/arsc/chunk/xml/AndroidManifestBlock.java
@@ -18,9 +18,14 @@ public class AndroidManifestBlock extends ResXmlBlock{
     public ResXmlElement getMainActivity(){
         for(ResXmlElement activity:listActivities()){
             for(ResXmlElement intentFilter:activity.listElements(TAG_intent_filter)){
-                ResXmlAttribute attribute = intentFilter.searchAttributeByResourceId(ID_name);
-                if(VALUE_android_intent_action_MAIN.equals(attribute.getValueAsString())){
-                    return activity;
+                for(ResXmlElement action:intentFilter.listElements(TAG_action)){
+                    ResXmlAttribute attribute = action.searchAttributeByResourceId(ID_name);
+                    if(attribute==null){
+                        continue;
+                    }
+                    if(VALUE_android_intent_action_MAIN.equals(attribute.getValueAsString())){
+                        return activity;
+                    }
                 }
             }
         }
@@ -294,6 +299,8 @@ public class AndroidManifestBlock extends ResXmlBlock{
     public static final String NAME_versionCode = "versionCode";
     public static final String NAME_versionName = "versionName";
     public static final String NAME_name = "name";
+    public static final String NAME_extractNativeLibs = "extractNativeLibs";
+    public static final String NAME_isSplitRequired = "isSplitRequired";
 
     public static final int ID_name = 0x01010003;
     public static final int ID_compileSdkVersion = 0x01010572;
@@ -302,6 +309,8 @@ public class AndroidManifestBlock extends ResXmlBlock{
     public static final int ID_host = 0x01010028;
     public static final int ID_configChanges = 0x0101001f;
     public static final int ID_screenOrientation = 0x0101001e;
+    public static final int ID_extractNativeLibs = 0x010104ea;
+    public static final int ID_isSplitRequired = 0x01010591;
 
     public static final String VALUE_android_intent_action_MAIN = "android.intent.action.MAIN";
 
diff --git a/src/main/java/com/reandroid/lib/arsc/container/SpecTypePair.java b/src/main/java/com/reandroid/lib/arsc/container/SpecTypePair.java
index bb7f8b7..2096a5e 100755
--- a/src/main/java/com/reandroid/lib/arsc/container/SpecTypePair.java
+++ b/src/main/java/com/reandroid/lib/arsc/container/SpecTypePair.java
@@ -159,6 +159,16 @@ public class SpecTypePair extends BlockContainer<Block>
         getSpecBlock().setTypeId((byte) json.getInt("id"));
         getTypeBlockArray().fromJson(json.getJSONArray("types"));
     }
+    public void merge(SpecTypePair typePair){
+        if(typePair==null||typePair==this){
+            return;
+        }
+        if(getTypeId() != typePair.getTypeId()){
+            throw new IllegalArgumentException("Can not merge different id types: "
+                    +getTypeId()+"!="+typePair.getTypeId());
+        }
+        getTypeBlockArray().merge(typePair.getTypeBlockArray());
+    }
     @Override
     public int compareTo(SpecTypePair specTypePair) {
         return Integer.compare(getTypeId(), specTypePair.getTypeId());
diff --git a/src/main/java/com/reandroid/lib/arsc/item/ByteItem.java b/src/main/java/com/reandroid/lib/arsc/item/ByteItem.java
index 1e82146..45aa2c0 100755
--- a/src/main/java/com/reandroid/lib/arsc/item/ByteItem.java
+++ b/src/main/java/com/reandroid/lib/arsc/item/ByteItem.java
@@ -5,6 +5,23 @@ public class ByteItem extends BlockItem {
     public ByteItem() {
         super(1);
     }
+    public boolean getBit(int index){
+        return ((get()>>index) & 0x1) == 1;
+    }
+    public void putBit(int index, boolean bit){
+        int val=get();
+        int left=val>>index;
+        if(bit){
+            left=left|0x1;
+        }else {
+            left=left & 0xFE;
+        }
+        left=left<<index;
+        index=8-index;
+        int right=(0xFF>>index) & val;
+        val=left|right;
+        set((byte) val);
+    }
     public void set(byte b){
         getBytesInternal()[0]=b;
     }
diff --git a/src/main/java/com/reandroid/lib/arsc/item/StyleItem.java b/src/main/java/com/reandroid/lib/arsc/item/StyleItem.java
index 88567b2..bf7f607 100755
--- a/src/main/java/com/reandroid/lib/arsc/item/StyleItem.java
+++ b/src/main/java/com/reandroid/lib/arsc/item/StyleItem.java
@@ -307,6 +307,14 @@ public class StyleItem extends IntegerArray implements JSONConvert<JSONObject> {
             addSpanInfo(spanInfo.getTag(), spanInfo.getFirst(), spanInfo.getLast());
         }
     }
+    public void merge(StyleItem styleItem){
+        if(styleItem==null||styleItem==this){
+            return;
+        }
+        for(int[] info:styleItem.getIntSpanInfoList()){
+            addStylePiece(info[0], info[1], info[2]);
+        }
+    }
     @Override
     public String toString(){
         return "Spans count = "+getSpanInfoList().size();
diff --git a/src/main/java/com/reandroid/lib/arsc/pool/TableStringPool.java b/src/main/java/com/reandroid/lib/arsc/pool/TableStringPool.java
index 3c6ad36..3bdb95b 100755
--- a/src/main/java/com/reandroid/lib/arsc/pool/TableStringPool.java
+++ b/src/main/java/com/reandroid/lib/arsc/pool/TableStringPool.java
@@ -15,4 +15,22 @@ public class TableStringPool extends BaseStringPool<TableString> {
     StringArray<TableString> newInstance(IntegerArray offsets, IntegerItem itemCount, IntegerItem itemStart, boolean is_utf8) {
         return new TableStringArray(offsets, itemCount, itemStart, is_utf8);
     }
+    public void merge(TableStringPool stringPool){
+        if(stringPool==null||stringPool==this){
+            return;
+        }
+        StringArray<TableString> existArray = getStringsArray();
+        if(existArray.childesCount()!=0){
+            return;
+        }
+        StringArray<TableString> comingArray = stringPool.getStringsArray();
+        int count=comingArray.childesCount();
+        existArray.ensureSize(count);
+        for(int i=0;i<count;i++){
+            TableString exist = existArray.get(i);
+            TableString coming = comingArray.get(i);
+            exist.set(coming.get());
+        }
+        getStyleArray().merge(stringPool.getStyleArray());
+    }
 }
diff --git a/src/main/java/com/reandroid/lib/arsc/value/BaseResValue.java b/src/main/java/com/reandroid/lib/arsc/value/BaseResValue.java
index 832984a..163d0c0 100755
--- a/src/main/java/com/reandroid/lib/arsc/value/BaseResValue.java
+++ b/src/main/java/com/reandroid/lib/arsc/value/BaseResValue.java
@@ -11,6 +11,9 @@ public abstract class BaseResValue extends BlockItem implements JSONConvert<JSON
         super(bytesLength);
     }
 
+    protected void onRemoved(){
+    }
+
     public EntryBlock getEntryBlock(){
         Block parent=getParent();
         while(parent!=null){
diff --git a/src/main/java/com/reandroid/lib/arsc/value/EntryBlock.java b/src/main/java/com/reandroid/lib/arsc/value/EntryBlock.java
index f68f1a8..dc97159 100755
--- a/src/main/java/com/reandroid/lib/arsc/value/EntryBlock.java
+++ b/src/main/java/com/reandroid/lib/arsc/value/EntryBlock.java
@@ -1,8 +1,10 @@
 package com.reandroid.lib.arsc.value;
 
+import com.reandroid.lib.arsc.array.EntryBlockArray;
 import com.reandroid.lib.arsc.base.Block;
 import com.reandroid.lib.arsc.base.BlockCounter;
 import com.reandroid.lib.arsc.chunk.PackageBlock;
+import com.reandroid.lib.arsc.chunk.SpecBlock;
 import com.reandroid.lib.arsc.chunk.TableBlock;
 import com.reandroid.lib.arsc.chunk.TypeBlock;
 import com.reandroid.lib.arsc.group.EntryGroup;
@@ -17,6 +19,7 @@ import com.reandroid.lib.json.JSONObject;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.List;
 
 public class EntryBlock extends Block implements JSONConvert<JSONObject> {
@@ -228,41 +231,23 @@ public class EntryBlock extends Block implements JSONConvert<JSONObject> {
         removeSpecReferences();
     }
     public void setEntryTypeBag(boolean b){
-        int val=mFlagEntryType.get();
-        if(b){
-            val=val|0x1;
-        }else {
-            val=val&0xFE;
-        }
-        mFlagEntryType.set((byte) val);
+        mFlagEntryType.putBit(0, b);
         refreshHeaderSize();
     }
     public boolean isEntryTypeBag(){
-        return ((mFlagEntryType.get() & 0x1) != 0);
+        return mFlagEntryType.getBit(0);
     }
     public void setEntryTypeShared(boolean b){
-        int val=mFlagEntryType.get();
-        if(b){
-            val=val|0x2;
-        }else {
-            val=val&0xFD;
-        }
-        mFlagEntryType.set((byte) val);
+        mFlagEntryType.putBit(1, b);
     }
     public boolean isEntryTypeShared(){
-        return (mFlagEntryType.get() & 0x2) !=0;
+        return mFlagEntryType.getBit(1);
     }
     public void setEntryTypePublic(boolean b){
-        int val=mFlagEntryType.get();
-        if(b){
-            val=val|0x4;
-        }else {
-            val=val&0xFB;
-        }
-        mFlagEntryType.set((byte) val);
+        mFlagEntryType.putBit(2, b);
     }
     public boolean isEntryTypePublic(){
-        return (mFlagEntryType.get() & 0x4) !=0;
+        return mFlagEntryType.getBit(2);
     }
     private void setByteFlagsB(byte b){
         mByteFlagsB.set(b);
@@ -310,6 +295,7 @@ public class EntryBlock extends Block implements JSONConvert<JSONObject> {
         if(mResValue!=null){
             mResValue.setIndex(-1);
             mResValue.setParent(null);
+            mResValue.onRemoved();
         }
         if(resValue!=null){
             setNull(false);
@@ -685,6 +671,41 @@ public class EntryBlock extends Block implements JSONConvert<JSONObject> {
         baseResValue.fromJson(json.getJSONObject(NAME_value));
         mResValue.onDataLoaded();
     }
+    public void merge(EntryBlock entryBlock){
+        if(entryBlock==null||entryBlock==this||entryBlock.isNull()){
+            return;
+        }
+        String name=entryBlock.getName();
+        if(name==null){
+            name="";
+        }
+        if(!entryBlock.isEntryTypeBag()){
+            ResValueInt comingValue = (ResValueInt) entryBlock.getResValue();
+            ResValueInt exist = getOrCreateResValueInt();
+            setResValue(exist);
+            exist.merge(comingValue);
+        }else {
+            ResValueBag comingValue = (ResValueBag)  entryBlock.getResValue();
+            ResValueBag exist=getOrCreateResValueBag();
+            setResValue(exist);
+            exist.merge(comingValue);
+        }
+        SpecString spec = getPackageBlock()
+                .getSpecStringPool().getOrCreate(name);
+        setSpecReference(spec.getIndex());
+    }
+    private ResValueBag getOrCreateResValueBag(){
+        if(mResValue instanceof ResValueBag){
+            return (ResValueBag) mResValue;
+        }
+        return new ResValueBag();
+    }
+    private ResValueInt getOrCreateResValueInt(){
+        if(mResValue instanceof ResValueInt){
+            return (ResValueInt) mResValue;
+        }
+        return new ResValueInt();
+    }
     @Override
     public String toString(){
         StringBuilder builder=new StringBuilder();
diff --git a/src/main/java/com/reandroid/lib/arsc/value/LibraryInfo.java b/src/main/java/com/reandroid/lib/arsc/value/LibraryInfo.java
index 487e318..b9ad367 100755
--- a/src/main/java/com/reandroid/lib/arsc/value/LibraryInfo.java
+++ b/src/main/java/com/reandroid/lib/arsc/value/LibraryInfo.java
@@ -1,5 +1,6 @@
 package com.reandroid.lib.arsc.value;
 
+import com.reandroid.lib.arsc.array.LibraryInfoArray;
 import com.reandroid.lib.arsc.base.Block;
 import com.reandroid.lib.arsc.base.BlockCounter;
 import com.reandroid.lib.arsc.io.BlockReader;
@@ -88,6 +89,16 @@ public class LibraryInfo extends Block implements JSONConvert<JSONObject> {
         setPackageId(json.getInt("id"));
         setPackageName(json.getString("name"));
     }
+    public void merge(LibraryInfo info){
+        if(info==null||info==this){
+            return;
+        }
+        if(getPackageId()!=info.getPackageId()){
+            throw new IllegalArgumentException("Can not add different id libraries: "
+                    +getPackageId()+"!="+info.getPackageId());
+        }
+        setPackageName(info.getPackageName());
+    }
     @Override
     public String toString(){
         StringBuilder builder=new StringBuilder();
diff --git a/src/main/java/com/reandroid/lib/arsc/value/ResValueBag.java b/src/main/java/com/reandroid/lib/arsc/value/ResValueBag.java
index 14a6c3d..02fc0a8 100755
--- a/src/main/java/com/reandroid/lib/arsc/value/ResValueBag.java
+++ b/src/main/java/com/reandroid/lib/arsc/value/ResValueBag.java
@@ -113,7 +113,6 @@ public class ResValueBag extends BaseResValue {
         if(isNull()){
             return 0;
         }
-        refreshCount();
         int result;
         result=mParentId.writeBytes(writer);
         result+=mCount.writeBytes(writer);
@@ -150,6 +149,14 @@ public class ResValueBag extends BaseResValue {
         getResValueBagItemArray().fromJson(json.getJSONArray(NAME_items));
         refreshCount();
     }
+    public void merge(ResValueBag resValueBag){
+        if(resValueBag==null||resValueBag==this){
+            return;
+        }
+        setParentId(resValueBag.getParentId());
+        getResValueBagItemArray().merge(resValueBag.getResValueBagItemArray());
+        refreshCount();
+    }
 
     @Override
     public String toString(){
diff --git a/src/main/java/com/reandroid/lib/arsc/value/ResValueBagItem.java b/src/main/java/com/reandroid/lib/arsc/value/ResValueBagItem.java
index 16c4521..01fbb6e 100755
--- a/src/main/java/com/reandroid/lib/arsc/value/ResValueBagItem.java
+++ b/src/main/java/com/reandroid/lib/arsc/value/ResValueBagItem.java
@@ -11,6 +11,10 @@ public class ResValueBagItem extends BaseResValueItem{
         super(BYTES_COUNT);
         setHeaderSize(BYTES_SIZE);
     }
+    @Override
+    public void onRemoved(){
+        removeTableReference();
+    }
     public String getValueAsString(){
         return getTableString(getData()).getHtml();
     }
@@ -186,6 +190,19 @@ public class ResValueBagItem extends BaseResValueItem{
             setData(json.getInt(NAME_data));
         }
     }
+    public void merge(ResValueBagItem bagItem){
+        if(bagItem==null||bagItem==this){
+            return;
+        }
+        setId(bagItem.getId());
+        ValueType valueType=bagItem.getValueType();
+        if(valueType==ValueType.STRING){
+            setValueAsString(bagItem.getValueAsString());
+        }else {
+            setType(valueType);
+            setData(bagItem.getData());
+        }
+    }
 
     @Override
     public String toString(){
diff --git a/src/main/java/com/reandroid/lib/arsc/value/ResValueInt.java b/src/main/java/com/reandroid/lib/arsc/value/ResValueInt.java
index 42a86d6..0f5eacd 100755
--- a/src/main/java/com/reandroid/lib/arsc/value/ResValueInt.java
+++ b/src/main/java/com/reandroid/lib/arsc/value/ResValueInt.java
@@ -1,6 +1,7 @@
 package com.reandroid.lib.arsc.value;
 
 import com.reandroid.lib.arsc.decoder.ValueDecoder;
+import com.reandroid.lib.arsc.item.SpecString;
 import com.reandroid.lib.arsc.item.TableString;
 import com.reandroid.lib.json.JSONObject;
 
@@ -9,6 +10,9 @@ public class ResValueInt extends BaseResValueItem  {
         super(BYTES_COUNT);
         setHeaderSize(BYTES_SIZE);
     }
+    protected void onRemoved(){
+        removeTableReference();
+    }
     public String getValueAsString(){
         return getString(getData());
     }
@@ -116,6 +120,18 @@ public class ResValueInt extends BaseResValueItem  {
             setData(json.getInt(NAME_data));
         }
     }
+    public void merge(ResValueInt resValueInt){
+        if(resValueInt==null||resValueInt==this){
+            return;
+        }
+        ValueType valueType=resValueInt.getValueType();
+        if(valueType==ValueType.STRING){
+            setValueAsString(resValueInt.getValueAsString());
+        }else {
+            setType(valueType);
+            setData(resValueInt.getData());
+        }
+    }
     @Override
     public String toString(){
         StringBuilder builder=new StringBuilder();