diff --git a/src/main/java/com/reandroid/lib/apk/xmlencoder/RESEncoder.java b/src/main/java/com/reandroid/lib/apk/xmlencoder/RESEncoder.java
index 16f9835..560556a 100644
--- a/src/main/java/com/reandroid/lib/apk/xmlencoder/RESEncoder.java
+++ b/src/main/java/com/reandroid/lib/apk/xmlencoder/RESEncoder.java
@@ -66,6 +66,7 @@
              throw new IOException("No .*/values/"
                      +ApkUtil.FILE_NAME_PUBLIC_XML+"  file found in '"+mainDir);
          }
+         preloadStringPool(pubXmlFileList);
          for(File pubXmlFile:pubXmlFileList){
              EncodeMaterials encodeMaterials = loadPublicXml(pubXmlFile);
              addParsedFiles(pubXmlFile);
@@ -90,6 +91,20 @@
          }
          tableBlock.refresh();
      }
+     private void preloadStringPool(List<File> pubXmlFileList){
+         logMessage("Loading string pool ...");
+         ValuesStringPoolBuilder poolBuilder=new ValuesStringPoolBuilder();
+         for(File pubXml:pubXmlFileList){
+             File resDir=toResDirectory(pubXml);
+             logMessage("Scanning: "+resDir.getParentFile().getName());
+             List<File> valuesDirList = listValuesDir(resDir);
+             for(File dir:valuesDirList){
+                 logVerbose(poolBuilder.size()+" building pool: "+dir.getName());
+                 poolBuilder.scanValuesDirectory(dir);
+             }
+         }
+         poolBuilder.addTo(tableBlock.getTableStringPool());
+     }
      private EncodeMaterials loadPublicXml(File pubXmlFile) throws IOException, XMLException {
          ResourceIds resourceIds=new ResourceIds();
          resourceIds.fromXml(pubXmlFile);
diff --git a/src/main/java/com/reandroid/lib/apk/xmlencoder/ValuesStringPoolBuilder.java b/src/main/java/com/reandroid/lib/apk/xmlencoder/ValuesStringPoolBuilder.java
new file mode 100644
index 0000000..328ea98
--- /dev/null
+++ b/src/main/java/com/reandroid/lib/apk/xmlencoder/ValuesStringPoolBuilder.java
@@ -0,0 +1,104 @@
+ /*
+  *  Copyright (C) 2022 github.com/REAndroid
+  *
+  *  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.reandroid.lib.apk.xmlencoder;
+
+import com.reandroid.lib.arsc.decoder.ValueDecoder;
+import com.reandroid.lib.arsc.pool.TableStringPool;
+import com.reandroid.xml.XMLDocument;
+import com.reandroid.xml.XMLElement;
+
+import java.io.File;
+import java.util.HashSet;
+import java.util.Set;
+
+public class ValuesStringPoolBuilder {
+    private final Set<String> stringList;
+    public ValuesStringPoolBuilder(){
+        this.stringList=new HashSet<>();
+    }
+    public void addTo(TableStringPool stringPool){
+        stringPool.addStrings(stringList);
+        stringList.clear();
+    }
+    public void scanValuesDirectory(File dir){
+        addStringsFile(new File(dir, "strings.xml"));
+        addBagsFile(new File(dir, "plurals.xml"));
+    }
+    public int size(){
+        return stringList.size();
+    }
+    private void addStringsFile(File file) {
+        if(file==null||!file.isFile()){
+            return;
+        }
+        try {
+            XMLDocument xmlDocument = XMLDocument.load(file);
+            addStrings(xmlDocument);
+        } catch (Exception ignored) {
+        }
+    }
+    private void addBagsFile(File file) {
+        if(file==null||!file.isFile()){
+            return;
+        }
+        try {
+            XMLDocument xmlDocument = XMLDocument.load(file);
+            addBagStrings(xmlDocument);
+        } catch (Exception ignored) {
+        }
+    }
+    private void addBagStrings(XMLDocument xmlDocument){
+        if(xmlDocument == null){
+            return;
+        }
+        XMLElement documentElement = xmlDocument.getDocumentElement();
+        if(documentElement==null){
+            return;
+        }
+        int count = documentElement.getChildesCount();
+        for(int i=0;i<count;i++){
+            XMLElement child=documentElement.getChildAt(i);
+            int childCount=child.getChildesCount();
+            for(int j=0;j<childCount;j++){
+                addStrings(child.getChildAt(i));
+            }
+        }
+    }
+    private void addStrings(XMLDocument xmlDocument){
+        if(xmlDocument == null){
+            return;
+        }
+        XMLElement documentElement = xmlDocument.getDocumentElement();
+        if(documentElement==null){
+            return;
+        }
+        int count = documentElement.getChildesCount();
+        for(int i=0;i<count;i++){
+            addStrings(documentElement.getChildAt(i));
+        }
+    }
+    private void addStrings(XMLElement element){
+        String text = ValueDecoder
+                .unEscapeSpecialCharacter(element.getTextContent());
+        addString(text);
+    }
+    private void addString(String text){
+        if(text!=null && text.length()>0 && text.charAt(0)!='@'){
+            stringList.add(text);
+        }
+    }
+
+}
diff --git a/src/main/java/com/reandroid/lib/apk/xmlencoder/XMLValuesEncoderString.java b/src/main/java/com/reandroid/lib/apk/xmlencoder/XMLValuesEncoderString.java
index 5d133c3..ae47bf4 100644
--- a/src/main/java/com/reandroid/lib/apk/xmlencoder/XMLValuesEncoderString.java
+++ b/src/main/java/com/reandroid/lib/apk/xmlencoder/XMLValuesEncoderString.java
@@ -27,11 +27,7 @@ class XMLValuesEncoderString extends XMLValuesEncoder{
     XMLValuesEncoderString(EncodeMaterials materials) {
         super(materials);
     }
-    @Override
-    public void encode(String type, String qualifiers, XMLDocument xmlDocument){
-        preloadStringPool(xmlDocument);
-        super.encode(type, qualifiers, xmlDocument);
-    }
+
     @Override
     void encodeStringValue(EntryBlock entryBlock, String value){
         entryBlock.setValueAsString(ValueDecoder.unEscapeSpecialCharacter(value));
@@ -44,17 +40,4 @@ class XMLValuesEncoderString extends XMLValuesEncoder{
     void encodeBooleanValue(EntryBlock entryBlock, String value){
         entryBlock.setValueAsString(value);
     }
-    private void preloadStringPool(XMLDocument xmlDocument){
-        XMLElement documentElement = xmlDocument.getDocumentElement();
-        List<String> stringList = new ArrayList<>();
-        int count = documentElement.getChildesCount();
-        for(int i=0;i<count;i++){
-            String value=getValue(documentElement.getChildAt(i));
-            if(value==null || ValueDecoder.isReference(value)){
-                continue;
-            }
-            stringList.add(ValueDecoder.unEscapeSpecialCharacter(value));
-        }
-        getMaterials().addTableStringPool(stringList);
-    }
 }