diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 8a91a6b..dd8d4fc 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https://services.gradle.org/distributions/gradle-6.5.1-all.zip
+distributionUrl=file:///home/d/services.gradle.org/distributions/gradle-6.5.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
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 52ee1c1..5d97241 100644
--- a/src/main/java/com/reandroid/lib/arsc/chunk/LibraryBlock.java
+++ b/src/main/java/com/reandroid/lib/arsc/chunk/LibraryBlock.java
@@ -4,6 +4,8 @@ import com.reandroid.lib.arsc.array.LibraryInfoArray;
 import com.reandroid.lib.arsc.item.IntegerItem;
 import com.reandroid.lib.arsc.value.LibraryInfo;
 
+import java.util.List;
+
 public class LibraryBlock extends BaseChunk {
     private final IntegerItem mLibCount;
     private final LibraryInfoArray mLibraryInfoArray;
@@ -37,6 +39,9 @@ public class LibraryBlock extends BaseChunk {
         mLibraryInfoArray.add(info);
         mLibCount.set(mLibraryInfoArray.childesCount());
     }
+    public List<LibraryInfo> listLibraryInfo(){
+        return mLibraryInfoArray.listItems();
+    }
     @Override
     public boolean isNull(){
         return mLibraryInfoArray.childesCount()==0;
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 d08697f..3626424 100644
--- a/src/main/java/com/reandroid/lib/arsc/chunk/PackageBlock.java
+++ b/src/main/java/com/reandroid/lib/arsc/chunk/PackageBlock.java
@@ -3,12 +3,18 @@ package com.reandroid.lib.arsc.chunk;
 import com.reandroid.lib.arsc.array.SpecTypePairArray;
 import com.reandroid.lib.arsc.base.Block;
 import com.reandroid.lib.arsc.container.PackageLastBlocks;
+import com.reandroid.lib.arsc.container.SpecTypePair;
+import com.reandroid.lib.arsc.group.EntryGroup;
+import com.reandroid.lib.arsc.group.ItemGroup;
 import com.reandroid.lib.arsc.item.IntegerItem;
 import com.reandroid.lib.arsc.item.PackageName;
 import com.reandroid.lib.arsc.pool.SpecStringPool;
 import com.reandroid.lib.arsc.pool.TypeStringPool;
+import com.reandroid.lib.arsc.value.EntryBlock;
 import com.reandroid.lib.arsc.value.LibraryInfo;
 
+import java.util.*;
+
 
 public class PackageBlock extends BaseChunk {
     private final IntegerItem mPackageId;
@@ -28,6 +34,8 @@ public class PackageBlock extends BaseChunk {
 
     private final PackageLastBlocks mPackageLastBlocks;
 
+    private final Map<Integer, EntryGroup> mEntriesGroup;
+
     public PackageBlock() {
         super(ChunkType.PACKAGE, 3);
         this.mPackageId=new IntegerItem();
@@ -45,6 +53,8 @@ public class PackageBlock extends BaseChunk {
         this.mLibraryBlock=new LibraryBlock();
         this.mPackageLastBlocks=new PackageLastBlocks(mSpecTypePairArray, mLibraryBlock);
 
+        this.mEntriesGroup=new HashMap<>();
+
         addToHeader(mPackageId);
         addToHeader(mPackageName);
         addToHeader(mTypeStrings);
@@ -83,12 +93,57 @@ public class PackageBlock extends BaseChunk {
         }
         return null;
     }
+    public int getPackageId(){
+        return mPackageId.get();
+    }
+    public int setPackageId(){
+        return mPackageId.get();
+    }
+    public String getPackageName(){
+        return mPackageName.get();
+    }
+    public void setPackageName(String name){
+        mPackageName.set(name);
+    }
+    public void setTypeStrings(int i){
+        mTypeStrings.set(i);
+    }
+    public int getLastPublicType(){
+        return mLastPublicType.get();
+    }
+    public void setLastPublicType(int i){
+        mLastPublicType.set(i);
+    }
+    public int getKeyStrings(){
+        return mKeyStrings.get();
+    }
+    public void setKeyStrings(int i){
+        mKeyStrings.set(i);
+    }
+    public int getLastPublicKey(){
+        return mLastPublicKey.get();
+    }
+    public void setLastPublicKey(int i){
+        mLastPublicKey.set(i);
+    }
+    public int getTypeIdOffset(){
+        return mTypeIdOffset.get();
+    }
+    public void setTypeIdOffset(int i){
+        mTypeIdOffset.set(i);
+    }
     public TypeStringPool getTypeStringPool(){
         return mTypeStringPool;
     }
     public SpecStringPool getSpecStringPool(){
         return mSpecStringPool;
     }
+    public SpecTypePairArray getSpecTypePairArray(){
+        return mSpecTypePairArray;
+    }
+    public List<LibraryInfo> listLibraryInfo(){
+        return mLibraryBlock.listLibraryInfo();
+    }
 
     public void addLibrary(LibraryBlock libraryBlock){
         if(libraryBlock==null){
@@ -105,11 +160,51 @@ public class PackageBlock extends BaseChunk {
     public void addLibraryInfo(LibraryInfo info){
         mLibraryBlock.addLibraryInfo(info);
     }
+    public Set<Integer> listResourceIds(){
+        return mEntriesGroup.keySet();
+    }
+    public Collection<EntryGroup> listEntryGroup(){
+        return mEntriesGroup.values();
+    }
+    public EntryGroup getEntryGroup(int resId){
+        return mEntriesGroup.get(resId);
+    }
+    private void updateEntryGroup(EntryBlock entryBlock){
+        int resId=entryBlock.getResourceId();
+        EntryGroup group=mEntriesGroup.get(resId);
+        if(group==null){
+            group=new EntryGroup(resId);
+            mEntriesGroup.put(resId, group);
+        }
+        group.add(entryBlock);
+    }
+    public List<EntryBlock> listEntries(byte typeId, int entryId){
+        List<EntryBlock> results=new ArrayList<>();
+        for(SpecTypePair pair:listSpecTypePair(typeId)){
+            results.addAll(pair.listEntries(entryId));
+        }
+        return results;
+    }
+    public List<SpecTypePair> listSpecTypePair(byte typeId){
+        List<SpecTypePair> results=new ArrayList<>();
+        for(SpecTypePair pair:listAllSpecTypePair()){
+            if(typeId==pair.getTypeId()){
+                results.add(pair);
+            }
+        }
+        return results;
+    }
+    public List<SpecTypePair> listAllSpecTypePair(){
+        return getSpecTypePairArray().listItems();
+    }
 
     private void refreshKeyStrings(){
         int pos=countUpTo(mSpecStringPool);
         mKeyStrings.set(pos);
     }
+    public void onEntryAdded(EntryBlock entryBlock){
+        updateEntryGroup(entryBlock);
+    }
     @Override
     public void onChunkLoaded() {
     }
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 3b27b0d..7e8bb7f 100644
--- a/src/main/java/com/reandroid/lib/arsc/chunk/TypeBlock.java
+++ b/src/main/java/com/reandroid/lib/arsc/chunk/TypeBlock.java
@@ -3,8 +3,12 @@ package com.reandroid.lib.arsc.chunk;
 import com.reandroid.lib.arsc.array.EntryBlockArray;
 import com.reandroid.lib.arsc.item.IntegerArray;
 import com.reandroid.lib.arsc.item.IntegerItem;
+import com.reandroid.lib.arsc.value.EntryBlock;
 import com.reandroid.lib.arsc.value.ResConfig;
 
+import java.util.ArrayList;
+import java.util.List;
+
 public class TypeBlock extends BaseTypeBlock {
     private final IntegerItem mEntriesStart;
     private final ResConfig mResConfig;
@@ -29,6 +33,24 @@ public class TypeBlock extends BaseTypeBlock {
     public EntryBlockArray getEntryBlockArray(){
         return mEntryArray;
     }
+    public List<EntryBlock> listEntries(){
+        return listEntries(false);
+    }
+    public List<EntryBlock> listEntries(boolean includeNull){
+        List<EntryBlock> results=new ArrayList<>();
+        for(EntryBlock entryBlock:mEntryArray.listItems()){
+            if(!includeNull){
+                if(entryBlock.isNull()){
+                    continue;
+                }
+            }
+            results.add(entryBlock);
+        }
+        return results;
+    }
+    public EntryBlock getEntryBlock(int entryId){
+        return mEntryArray.get(entryId);
+    }
     @Override
     void onSetEntryCount(int count) {
         mEntryArray.setChildesCount(count);
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 c91c90e..7c73fbe 100644
--- a/src/main/java/com/reandroid/lib/arsc/container/SpecTypePair.java
+++ b/src/main/java/com/reandroid/lib/arsc/container/SpecTypePair.java
@@ -6,11 +6,14 @@ import com.reandroid.lib.arsc.base.Block;
 import com.reandroid.lib.arsc.base.BlockContainer;
 import com.reandroid.lib.arsc.chunk.PackageBlock;
 import com.reandroid.lib.arsc.chunk.SpecBlock;
+import com.reandroid.lib.arsc.chunk.TypeBlock;
 import com.reandroid.lib.arsc.header.HeaderBlock;
 import com.reandroid.lib.arsc.io.BlockReader;
+import com.reandroid.lib.arsc.value.EntryBlock;
 import com.reandroid.lib.arsc.value.ResConfig;
 
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.List;
 
 public class SpecTypePair extends BlockContainer<Block> {
@@ -55,6 +58,20 @@ public class SpecTypePair extends BlockContainer<Block> {
         }
         return null;
     }
+    public List<EntryBlock> listEntries(int entryId){
+        List<EntryBlock> results=new ArrayList<>();
+        for(TypeBlock typeBlock:listTypeBlocks()){
+            EntryBlock entryBlock=typeBlock.getEntryBlock(entryId);
+            if(entryBlock==null||entryBlock.isNull()){
+                continue;
+            }
+            results.add(entryBlock);
+        }
+        return results;
+    }
+    public List<TypeBlock> listTypeBlocks(){
+        return mTypeBlockArray.listItems();
+    }
 
     @Override
     protected void onRefreshed() {
diff --git a/src/main/java/com/reandroid/lib/arsc/group/EntryGroup.java b/src/main/java/com/reandroid/lib/arsc/group/EntryGroup.java
new file mode 100644
index 0000000..b05d633
--- /dev/null
+++ b/src/main/java/com/reandroid/lib/arsc/group/EntryGroup.java
@@ -0,0 +1,100 @@
+package com.reandroid.lib.arsc.group;
+
+import com.reandroid.lib.arsc.base.BlockArrayCreator;
+import com.reandroid.lib.arsc.chunk.PackageBlock;
+import com.reandroid.lib.arsc.chunk.TypeBlock;
+import com.reandroid.lib.arsc.item.SpecString;
+import com.reandroid.lib.arsc.item.TypeString;
+import com.reandroid.lib.arsc.pool.SpecStringPool;
+import com.reandroid.lib.arsc.value.EntryBlock;
+
+public class EntryGroup extends ItemGroup<EntryBlock> {
+    private final int resourceId;
+    public EntryGroup(int resId) {
+        super(create(), String.format("0x%08x", resId));
+        this.resourceId=resId;
+    }
+    public int getResourceId(){
+        return resourceId;
+    }
+    public void renameSpec(String name){
+        EntryBlock[] items=getItems();
+        if(items==null){
+            return;
+        }
+        SpecStringPool specStringPool=getSpecStringPool();
+        if(specStringPool==null){
+            return;
+        }
+        SpecString specString=specStringPool.getOrCreate(name);
+        renameSpec(specString.getIndex());
+    }
+    public void renameSpec(int specReference){
+        EntryBlock[] items=getItems();
+        if(items==null){
+            return;
+        }
+        for(EntryBlock block:items){
+            if(block==null||block.isNull()){
+                continue;
+            }
+            block.setSpecReference(specReference);
+        }
+    }
+    public TypeString getTypeString(){
+        EntryBlock entryBlock=get(0);
+        if(entryBlock==null){
+            return null;
+        }
+        return entryBlock.getTypeString();
+    }
+    public SpecString getSpecString(){
+        EntryBlock entryBlock=get(0);
+        if(entryBlock==null){
+            return null;
+        }
+        return entryBlock.getSpecString();
+    }
+    public String getTypeName(){
+        TypeString typeString=getTypeString();
+        if(typeString==null){
+            return null;
+        }
+        return typeString.get();
+    }
+    public String getSpecName(){
+        SpecString specString=getSpecString();
+        if(specString==null){
+            return null;
+        }
+        return specString.get();
+    }
+    private SpecStringPool getSpecStringPool(){
+        EntryBlock entryBlock=get(0);
+        if(entryBlock==null){
+            return null;
+        }
+        TypeBlock typeBlock=entryBlock.getTypeBlock();
+        if(typeBlock==null){
+            return null;
+        }
+        PackageBlock packageBlock=typeBlock.getPackageBlock();
+        if(packageBlock==null){
+            return null;
+        }
+        return packageBlock.getSpecStringPool();
+    }
+    private static BlockArrayCreator<EntryBlock> create(){
+        return new BlockArrayCreator<EntryBlock>(){
+            @Override
+            public EntryBlock newInstance() {
+                return new EntryBlock();
+            }
+
+            @Override
+            public EntryBlock[] newInstance(int len) {
+                return new EntryBlock[len];
+            }
+        };
+    }
+}
diff --git a/src/main/java/com/reandroid/lib/arsc/pool/StringGroup.java b/src/main/java/com/reandroid/lib/arsc/group/ItemGroup.java
similarity index 63%
rename from src/main/java/com/reandroid/lib/arsc/pool/StringGroup.java
rename to src/main/java/com/reandroid/lib/arsc/group/ItemGroup.java
index 51c6115..bd84d56 100644
--- a/src/main/java/com/reandroid/lib/arsc/pool/StringGroup.java
+++ b/src/main/java/com/reandroid/lib/arsc/group/ItemGroup.java
@@ -1,41 +1,67 @@
-package com.reandroid.lib.arsc.pool;
+package com.reandroid.lib.arsc.group;
 
+import com.reandroid.lib.arsc.base.Block;
 import com.reandroid.lib.arsc.base.BlockArrayCreator;
-import com.reandroid.lib.arsc.item.StringItem;
 
-import java.lang.reflect.Array;
+import java.util.AbstractList;
+import java.util.List;
 
-public class StringGroup<T extends StringItem> {
+public class ItemGroup<T extends Block> {
     private final BlockArrayCreator<T> mBlockArrayCreator;
     private final String name;
     private T[] items;
     private final int hashCode;
-    StringGroup(BlockArrayCreator<T> blockArrayCreator, String name, T[] items){
+    public ItemGroup(BlockArrayCreator<T> blockArrayCreator, String name){
         this.mBlockArrayCreator=blockArrayCreator;
         this.name=name;
-        this.items=items;
+        this.items=blockArrayCreator.newInstance(0);
         this.hashCode=(getClass().getName()+"-"+name).hashCode();
     }
-    public boolean contains(T strItem){
-        if(strItem==null){
+    public List<T> listItems(){
+        return new AbstractList<T>() {
+            @Override
+            public T get(int i) {
+                return ItemGroup.this.get(i);
+            }
+
+            @Override
+            public int size() {
+                return ItemGroup.this.size();
+            }
+        };
+    }
+    public T get(int i){
+        if(i<0||i>= size()){
+            return null;
+        }
+        return items[i];
+    }
+    public int size(){
+        if(items==null){
+            return 0;
+        }
+        return items.length;
+    }
+    public boolean contains(T block){
+        if(block==null){
             return false;
         }
         int len=items.length;
         for(int i=0;i<len;i++){
-            if(strItem==items[i]){
+            if(block==items[i]){
                 return true;
             }
         }
         return false;
     }
-    public void remove(T strItem){
-        if(strItem==null){
+    public void remove(T block){
+        if(block==null){
             return;
         }
         boolean found=false;
         int len=items.length;
         for(int i=0;i<len;i++){
-            if(strItem==items[i]){
+            if(block==items[i]){
                 items[i]=null;
                 found=true;
             }
@@ -44,14 +70,14 @@ public class StringGroup<T extends StringItem> {
             trimToSize();
         }
     }
-    public void add(T strItem){
-        if(strItem==null){
+    public void add(T block){
+        if(block==null){
             return;
         }
         int index=items.length;
         T[] update=createNew(index+1);
         System.arraycopy(items, 0, update, 0, index);
-        update[index]=strItem;
+        update[index]=block;
         items=update;
     }
     public T[] getItems(){
@@ -94,7 +120,7 @@ public class StringGroup<T extends StringItem> {
     public boolean equals(Object obj){
         if(obj instanceof StringGroup){
             StringGroup other=(StringGroup)obj;
-            return name.equals(other.name);
+            return hashCode==other.hashCode();
         }
         return false;
     }
diff --git a/src/main/java/com/reandroid/lib/arsc/group/StringGroup.java b/src/main/java/com/reandroid/lib/arsc/group/StringGroup.java
new file mode 100644
index 0000000..48e3e14
--- /dev/null
+++ b/src/main/java/com/reandroid/lib/arsc/group/StringGroup.java
@@ -0,0 +1,10 @@
+package com.reandroid.lib.arsc.group;
+
+import com.reandroid.lib.arsc.base.BlockArrayCreator;
+import com.reandroid.lib.arsc.item.StringItem;
+
+public class StringGroup<T extends StringItem> extends ItemGroup<T>{
+    public StringGroup(BlockArrayCreator<T> blockArrayCreator, String name){
+        super(blockArrayCreator, name);
+    }
+}
diff --git a/src/main/java/com/reandroid/lib/arsc/pool/BaseStringPool.java b/src/main/java/com/reandroid/lib/arsc/pool/BaseStringPool.java
index 34b9db7..e324820 100644
--- a/src/main/java/com/reandroid/lib/arsc/pool/BaseStringPool.java
+++ b/src/main/java/com/reandroid/lib/arsc/pool/BaseStringPool.java
@@ -5,6 +5,7 @@ import com.reandroid.lib.arsc.array.StringArray;
 import com.reandroid.lib.arsc.array.StyleArray;
 import com.reandroid.lib.arsc.base.Block;
 import com.reandroid.lib.arsc.chunk.BaseChunk;
+import com.reandroid.lib.arsc.group.StringGroup;
 import com.reandroid.lib.arsc.io.BlockLoad;
 import com.reandroid.lib.arsc.io.BlockReader;
 import com.reandroid.lib.arsc.item.*;
@@ -87,8 +88,7 @@ public abstract class BaseStringPool<T extends StringItem> extends BaseChunk imp
         if(group!=null){
             return group;
         }
-        T[] items=mArrayStrings.newInstance(0);
-        group=new StringGroup<>(mArrayStrings, str, items);
+        group=new StringGroup<>(mArrayStrings, str);
         mUniqueMap.put(str, group);
         return group;
     }
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 883260d..0644105 100644
--- a/src/main/java/com/reandroid/lib/arsc/value/EntryBlock.java
+++ b/src/main/java/com/reandroid/lib/arsc/value/EntryBlock.java
@@ -288,6 +288,17 @@ public class EntryBlock extends Block {
         return result;
     }
 
+    private void updatePackage(){
+        TypeBlock typeBlock=getTypeBlock();
+        if(typeBlock==null){
+            return;
+        }
+        PackageBlock packageBlock=typeBlock.getPackageBlock();
+        if(packageBlock==null){
+            return;
+        }
+        packageBlock.onEntryAdded(this);
+    }
     @Override
     public void onReadBytes(BlockReader reader) throws IOException{
         setNull(false);
@@ -297,6 +308,7 @@ public class EntryBlock extends Block {
         mSpecReference.readBytes(reader);
         createResValue();
         mResValue.readBytes(reader);
+        updatePackage();
     }
     public String toString(){
         StringBuilder builder=new StringBuilder();