diff --git a/android-example/app/app/release/app-app-release.apk b/android-example/app/app/release/app-app-release.apk
new file mode 100644
index 0000000..63e1246
Binary files /dev/null and b/android-example/app/app/release/app-app-release.apk differ
diff --git a/android-example/app/app/release/output-metadata.json b/android-example/app/app/release/output-metadata.json
new file mode 100644
index 0000000..d4bd0ce
--- /dev/null
+++ b/android-example/app/app/release/output-metadata.json
@@ -0,0 +1,20 @@
+{
+  "version": 3,
+  "artifactType": {
+    "type": "APK",
+    "kind": "Directory"
+  },
+  "applicationId": "net.irext.ircontrol",
+  "variantName": "appRelease",
+  "elements": [
+    {
+      "type": "SINGLE",
+      "filters": [],
+      "attributes": [],
+      "versionCode": 7,
+      "versionName": "1.5.0",
+      "outputFile": "app-app-release.apk"
+    }
+  ],
+  "elementType": "File"
+}
\ No newline at end of file
diff --git a/android-example/app/build.gradle b/android-example/app/build.gradle
index 611e5aa..7b69887 100644
--- a/android-example/app/build.gradle
+++ b/android-example/app/build.gradle
@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 28
+    compileSdk 36
     defaultConfig {
         applicationId "net.irext.ircontrol"
-        minSdkVersion 19
-        targetSdkVersion 28
-        versionCode 6
-        versionName '0.2.4'
+        targetSdkVersion 36
+        minSdkVersion 26
+        versionCode 7
+        versionName '1.5.0'
     }
     buildTypes {
         release {
@@ -15,25 +15,35 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
-    sourceSets.main {
-        jniLibs.srcDirs = ['src/main/jniLibs']
-    }
-    repositories {
-        mavenCentral()
-        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
-    }
-    compileOptions {
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
     }
+
+    flavorDimensions = ['app']
+
     productFlavors {
+        app {
+            ndk {
+                abiFilters "armeabi-v7a", "arm64-v8a", "x86", "x86_64"
+            }
+        }
     }
     namespace 'net.irext.ircontrol'
 }
 
 dependencies {
+    implementation project(':decodesdk')
+    implementation project(':web-api')
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation fileTree(dir: 'libs', include: ['*.aar'])
+
     implementation 'com.android.support:appcompat-v7:28.0.0'
     implementation 'com.android.support:design:28.0.0'
     implementation 'com.android.support:support-v4:28.0.0'
-    implementation 'com.michaelpardo:activeandroid:3.1.0-SNAPSHOT'
-    implementation project(':decodesdk')
-    implementation project(':web-api')
+
+    implementation 'com.android.support:multidex:1.0.3'
+
 }
\ No newline at end of file
diff --git a/android-example/app/libs/activeandroid-3.1.0.jar b/android-example/app/libs/activeandroid-3.1.0.jar
new file mode 100644
index 0000000..28b494e
Binary files /dev/null and b/android-example/app/libs/activeandroid-3.1.0.jar differ
diff --git a/android-example/app/libs/web-api.aar b/android-example/app/libs/web-api.aar
deleted file mode 100644
index be92dad..0000000
Binary files a/android-example/app/libs/web-api.aar and /dev/null differ
diff --git a/android-example/app/src/main/AndroidManifest.xml b/android-example/app/src/main/AndroidManifest.xml
index 6e5b411..59bbe6d 100644
--- a/android-example/app/src/main/AndroidManifest.xml
+++ b/android-example/app/src/main/AndroidManifest.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
@@ -15,12 +14,14 @@
             android:icon="@mipmap/ir_logo"
             android:label="@string/app_name"
             android:supportsRtl="true"
+            android:requestLegacyExternalStorage="true"
             android:networkSecurityConfig="@xml/network_security_config"
             android:theme="@android:style/Theme.Holo.Light.DarkActionBar">
 
         <activity
                 android:name="net.irext.ircontrol.ui.activity.MainActivity"
                 android:label="@string/title_activity_main"
+                android:exported="true"
                 android:theme="@style/AppTheme">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
diff --git a/android-example/app/src/main/java/net/irext/ircontrol/IRApplication.java b/android-example/app/src/main/java/net/irext/ircontrol/IRApplication.java
index d89c43c..31235a5 100644
--- a/android-example/app/src/main/java/net/irext/ircontrol/IRApplication.java
+++ b/android-example/app/src/main/java/net/irext/ircontrol/IRApplication.java
@@ -71,4 +71,8 @@ public class IRApplication extends com.activeandroid.app.Application {
             }
         }.start();
     }
+
+    public static String getApplicationName() {
+        return IRApplication.class.getPackageName();
+    }
 }
diff --git a/android-example/app/src/main/java/net/irext/ircontrol/ui/activity/MainActivity.java b/android-example/app/src/main/java/net/irext/ircontrol/ui/activity/MainActivity.java
index cb02d2c..c12439b 100644
--- a/android-example/app/src/main/java/net/irext/ircontrol/ui/activity/MainActivity.java
+++ b/android-example/app/src/main/java/net/irext/ircontrol/ui/activity/MainActivity.java
@@ -11,16 +11,20 @@ import android.support.annotation.NonNull;
 import android.support.design.widget.FloatingActionButton;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.app.FragmentManager;
+import android.support.v4.content.ContextCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.util.Log;
 import android.view.MenuItem;
 import android.view.View;
+import android.widget.Toast;
 import net.irext.ircontrol.R;
 import net.irext.ircontrol.bean.RemoteControl;
 import net.irext.ircontrol.ui.fragment.MainFragment;
 import net.irext.ircontrol.utils.MessageUtil;
 
 import java.lang.ref.WeakReference;
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * Filename:       MainActivity.java
@@ -37,6 +41,11 @@ public class MainActivity extends AppCompatActivity {
 
     private static final String TAG = MainActivity.class.getSimpleName();
 
+    private boolean mReadPermissionGranted = false;
+
+    private boolean mWritePermissionGranted = false;
+    private static final int PERMISSIONS_REQUEST_STORAGE = 1001;
+
     public static final int CMD_GOTO_CONTROL = 0;
 
     private RemoteControl mCurrentRemoteControl;
@@ -62,6 +71,7 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         initView();
+        checkAndRequestStoragePermissions();
     }
 
     @Override
@@ -98,49 +108,64 @@ public class MainActivity extends AppCompatActivity {
                 gotoCreateNew();
             }
         });
-        isReadStoragePermissionGranted();
-        isWriteStoragePermissionGranted();
     }
 
-    public void isReadStoragePermissionGranted() {
-        if (Build.VERSION.SDK_INT >= 23) {
-            if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE)
-                    == PackageManager.PERMISSION_GRANTED) {
-                Log.v(TAG,"read permission is granted");
-            } else {
+    private void checkAndRequestStoragePermissions() {
+        boolean readGranted = ContextCompat.checkSelfPermission(this,
+                Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
+        boolean writeGranted = ContextCompat.checkSelfPermission(this,
+                Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
 
-                Log.v(TAG,"read permission is revoked");
-                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 3);
-            }
+        List<String> permissionsToRequest = new ArrayList<>();
+
+        if (!readGranted) {
+            permissionsToRequest.add(Manifest.permission.READ_EXTERNAL_STORAGE);
+            Log.w(TAG, "read external storage permission not granted");
         }
-        else { //permission is automatically granted on sdk<23 upon installation
-            Log.v(TAG,"read permission is granted");
+
+        if (!writeGranted) {
+            permissionsToRequest.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
+            Log.w(TAG, "write external storage permission not granted");
+        }
+
+        if (!permissionsToRequest.isEmpty()) {
+            Log.d(TAG, "requesting permission: " + String.join(", ", permissionsToRequest));
+            ActivityCompat.requestPermissions(this,
+                    permissionsToRequest.toArray(new String[0]),
+                    PERMISSIONS_REQUEST_STORAGE);
+        } else {
+            Log.i(TAG, "storage permissions already granted.");
+            mReadPermissionGranted = true;
+            mWritePermissionGranted = true;
         }
     }
 
-    public void isWriteStoragePermissionGranted() {
-        if (Build.VERSION.SDK_INT >= 23) {
-            if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
-                    == PackageManager.PERMISSION_GRANTED) {
-                Log.v(TAG,"write permission is granted");
-            } else {
-
-                Log.v(TAG,"write permission is revoked");
-                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 2);
-            }
-        }
-        else {
-            // permission is automatically granted on sdk<23 upon installation
-            Log.v(TAG,"write permission is granted");
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        if (requestCode == PERMISSIONS_REQUEST_STORAGE) {
+            Log.d(TAG, "storage permission requested successfully");
+            mReadPermissionGranted = true;
+            mWritePermissionGranted = true;
         }
     }
 
     private void gotoCreateNew() {
+        if (!mReadPermissionGranted || !mWritePermissionGranted) {
+            Log.e(TAG, "storage read and write permission not granted");
+            Toast.makeText(this, this.getString(R.string.storage_permission_warning), Toast.LENGTH_SHORT).show();
+            checkAndRequestStoragePermissions();
+        }
         Intent intent = new Intent(this, CreateActivity.class);
         startActivity(intent);
     }
 
     private void gotoControl() {
+        if (!mReadPermissionGranted || !mWritePermissionGranted) {
+            Log.e(TAG, "storage read and write permission not granted");
+            Toast.makeText(this, this.getString(R.string.storage_permission_warning), Toast.LENGTH_SHORT).show();
+            checkAndRequestStoragePermissions();
+        }
         Intent intent = new Intent(this, ControlActivity.class);
         Bundle bundle = new Bundle();
         bundle.putLong(ControlActivity.KEY_REMOTE_ID, mCurrentRemoteControl.getID());
@@ -167,10 +192,4 @@ public class MainActivity extends AppCompatActivity {
             }
         }
     }
-
-    @Override
-    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
-                                           @NonNull int[] grantResults) {
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
-    }
 }
diff --git a/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/ControlFragment.java b/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/ControlFragment.java
index 0137d17..66222bd 100644
--- a/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/ControlFragment.java
+++ b/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/ControlFragment.java
@@ -132,7 +132,7 @@ public class ControlFragment extends Fragment implements View.OnClickListener {
         mCurrentRemoteControl = RemoteControl.getRemoteControl(mRemoteID);
         if (null != mCurrentRemoteControl) {
             int category = mCurrentRemoteControl.getCategoryId();
-            String binFileName = FileUtils.BIN_PATH + FileUtils.FILE_NAME_PREFIX +
+            String binFileName = FileUtils.binDir + FileUtils.FILE_NAME_PREFIX +
                     mCurrentRemoteControl.getRemoteMap() + FileUtils.FILE_NAME_EXT;
 
             /* decode SDK - load binary file */
@@ -234,6 +234,14 @@ public class ControlFragment extends Fragment implements View.OnClickListener {
         } else if (id == R.id.iv_menu) {
             decoded = irControl(KEY_MENU);
         }
+
+        // debug decoded value
+        String decodedValue = "";
+        for (int i = 0; i < decoded.length; i++) {
+            decodedValue += decoded[i];
+            decodedValue += ",";
+        }
+        Log.d(TAG, "decodedValue : " + decodedValue);
         // send decoded integer array to IR emitter
         ConsumerIrManager irEmitter =
                 (ConsumerIrManager) mParent.getSystemService(Context.CONSUMER_IR_SERVICE);
diff --git a/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/IndexFragment.java b/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/IndexFragment.java
index feece3d..3ecbdf2 100644
--- a/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/IndexFragment.java
+++ b/android-example/app/src/main/java/net/irext/ircontrol/ui/fragment/IndexFragment.java
@@ -145,10 +145,11 @@ public class IndexFragment extends BaseCreateFragment {
     }
 
     private boolean createDirectory() {
-        File file = new File(FileUtils.BIN_PATH);
+        File file = new File(FileUtils.binDir);
         if (file.exists()) {
             return true;
         }
+        Log.d(TAG, "create directory : " + file.getAbsolutePath());
         return file.mkdirs();
     }
 
@@ -157,7 +158,7 @@ public class IndexFragment extends BaseCreateFragment {
             @Override
             public void run() {
                 if (createDirectory()) {
-                    File binFile = new File(FileUtils.BIN_PATH +
+                    File binFile = new File(FileUtils.binDir +
                             FileUtils.FILE_NAME_PREFIX + mCurrentIndex.getRemoteMap() +
                             FileUtils.FILE_NAME_EXT);
                     boolean ret = FileUtils.write(binFile, mBinStream);
diff --git a/android-example/app/src/main/java/net/irext/ircontrol/utils/FileUtils.java b/android-example/app/src/main/java/net/irext/ircontrol/utils/FileUtils.java
index 2339993..f344891 100644
--- a/android-example/app/src/main/java/net/irext/ircontrol/utils/FileUtils.java
+++ b/android-example/app/src/main/java/net/irext/ircontrol/utils/FileUtils.java
@@ -2,6 +2,7 @@ package net.irext.ircontrol.utils;
 
 import android.os.Environment;
 import android.util.Log;
+import net.irext.ircontrol.IRApplication;
 
 import java.io.*;
 
@@ -20,9 +21,9 @@ public class FileUtils {
 
     private static final String TAG = FileUtils.class.getSimpleName();
 
-    public static final String BASE_PATH = Environment.getExternalStorageDirectory() + File.separator +
-            "irext" + File.separator;
-    public static final String BIN_PATH = BASE_PATH + "bin" + File.separator;
+    public static final String packageDataDir = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator +
+            Environment.DIRECTORY_DOWNLOADS + File.separator + IRApplication.getApplicationName() + File.separator;
+    public static final String binDir = packageDataDir + "bin" + File.separator;
 
     public static final String FILE_NAME_PREFIX = "irext_";
     public static final String FILE_NAME_EXT = ".ir";
@@ -64,36 +65,15 @@ public class FileUtils {
         return false;
     }
 
-    public static File createBinaryFile(String fileName) {
-        if(createDirs(BASE_PATH) && createDirs(BIN_PATH)) {
-            String path = BIN_PATH + fileName;
-            File file = new File(path);
-            if (!file.exists()) {
-                try {
-                    if (file.createNewFile()) {
-                        return file;
-                    }
-                } catch (IOException e) {
-                    e.printStackTrace();
-                }
-            } else {
-                Log.w(TAG, "binary file already exists ?");
-            }
-        } else {
-            Log.e(TAG, "failed to create dirs");
-        }
-        return null;
-    }
-
     private static boolean createDirs(String path) {
         File file = new File(path);
         return file.exists() || file.mkdir();
     }
 
     public static File getLocalFile(String fileName) {
-        File file = new File(BIN_PATH);
+        File file = new File(binDir);
         if (file.exists()) {
-            String path = BIN_PATH + fileName;
+            String path = binDir + fileName;
             file = new File(path);
             if (file.exists()) {
                 return file;
diff --git a/android-example/app/src/main/java/net/irext/ircontrol/utils/ToastUtils.java b/android-example/app/src/main/java/net/irext/ircontrol/utils/ToastUtils.java
new file mode 100644
index 0000000..587c151
--- /dev/null
+++ b/android-example/app/src/main/java/net/irext/ircontrol/utils/ToastUtils.java
@@ -0,0 +1,24 @@
+package net.irext.ircontrol.utils;
+
+import android.content.Context;
+import android.widget.Toast;
+
+/**
+ * Filename:       ToastUtil.java
+ * Revised:        Date: 2020-10-24
+ * Revision:       Revision: 1.0
+ * <p>
+ * Description:    Utils of popup
+ * <p>
+ * Revision log:
+ * 2020-10-24: created by strawmanbobi
+ */
+public class ToastUtils {
+
+    public static void showToast(Context context, String text) {
+        int duration = Toast.LENGTH_SHORT;
+
+        Toast toast = Toast.makeText(context, text, duration);
+        toast.show();
+    }
+}
diff --git a/android-example/app/src/main/jniLibs/arm64-v8a/libirdecode.so b/android-example/app/src/main/jniLibs/arm64-v8a/libirdecode.so
index 6574f17..234e4df 100644
Binary files a/android-example/app/src/main/jniLibs/arm64-v8a/libirdecode.so and b/android-example/app/src/main/jniLibs/arm64-v8a/libirdecode.so differ
diff --git a/android-example/app/src/main/jniLibs/armeabi-v7a/libirdecode.so b/android-example/app/src/main/jniLibs/armeabi-v7a/libirdecode.so
index 8cb2d88..b043552 100644
Binary files a/android-example/app/src/main/jniLibs/armeabi-v7a/libirdecode.so and b/android-example/app/src/main/jniLibs/armeabi-v7a/libirdecode.so differ
diff --git a/android-example/app/src/main/jniLibs/x86/libirdecode.so b/android-example/app/src/main/jniLibs/x86/libirdecode.so
index bfafd44..aff802f 100644
Binary files a/android-example/app/src/main/jniLibs/x86/libirdecode.so and b/android-example/app/src/main/jniLibs/x86/libirdecode.so differ
diff --git a/android-example/app/src/main/jniLibs/x86_64/libirdecode.so b/android-example/app/src/main/jniLibs/x86_64/libirdecode.so
index cdf2ddd..13ed693 100644
Binary files a/android-example/app/src/main/jniLibs/x86_64/libirdecode.so and b/android-example/app/src/main/jniLibs/x86_64/libirdecode.so differ
diff --git a/android-example/app/src/main/res/mipmap-hdpi/ir_logo.png b/android-example/app/src/main/res/mipmap-hdpi/ir_logo.png
deleted file mode 100644
index fc9e44f..0000000
Binary files a/android-example/app/src/main/res/mipmap-hdpi/ir_logo.png and /dev/null differ
diff --git a/android-example/app/src/main/res/mipmap-mdpi/ir_logo.png b/android-example/app/src/main/res/mipmap-mdpi/ir_logo.png
deleted file mode 100644
index cc35f45..0000000
Binary files a/android-example/app/src/main/res/mipmap-mdpi/ir_logo.png and /dev/null differ
diff --git a/android-example/app/src/main/res/mipmap-xhdpi/ir_logo.png b/android-example/app/src/main/res/mipmap-xhdpi/ir_logo.png
deleted file mode 100644
index 02d9e9b..0000000
Binary files a/android-example/app/src/main/res/mipmap-xhdpi/ir_logo.png and /dev/null differ
diff --git a/android-example/app/src/main/res/mipmap-xxhdpi/ir_logo.png b/android-example/app/src/main/res/mipmap-xxhdpi/ir_logo.png
index 001f53d..164c7a5 100644
Binary files a/android-example/app/src/main/res/mipmap-xxhdpi/ir_logo.png and b/android-example/app/src/main/res/mipmap-xxhdpi/ir_logo.png differ
diff --git a/android-example/app/src/main/res/mipmap-xxxhdpi/ir_logo.png b/android-example/app/src/main/res/mipmap-xxxhdpi/ir_logo.png
deleted file mode 100644
index 33247c8..0000000
Binary files a/android-example/app/src/main/res/mipmap-xxxhdpi/ir_logo.png and /dev/null differ
diff --git a/android-example/app/src/main/res/values-zh-rCN/strings.xml b/android-example/app/src/main/res/values-zh-rCN/strings.xml
index 8031d91..c530e02 100644
--- a/android-example/app/src/main/res/values-zh-rCN/strings.xml
+++ b/android-example/app/src/main/res/values-zh-rCN/strings.xml
@@ -11,6 +11,7 @@
 
     <!-- Main UI -->
     <string name="create_new">点击 + 安装遥控</string>
+    <string name="storage_permission_warning">请先授权应用对存储进行读写</string>
 
     <!-- Create New -->
     <string name="default_category">电视机</string>
diff --git a/android-example/app/src/main/res/values/strings.xml b/android-example/app/src/main/res/values/strings.xml
index 09732d6..f484359 100644
--- a/android-example/app/src/main/res/values/strings.xml
+++ b/android-example/app/src/main/res/values/strings.xml
@@ -11,6 +11,7 @@
 
     <!-- Main UI -->
     <string name="create_new">Tap + to create new remote control</string>
+    <string name="storage_permission_warning">Please grant storage read and write permission first</string>
 
     <!-- Create New -->
     <string name="default_category">TV</string>
diff --git a/android-example/build.gradle b/android-example/build.gradle
index 96475e0..7991078 100644
--- a/android-example/build.gradle
+++ b/android-example/build.gradle
@@ -1,24 +1,29 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
+
     repositories {
-        jcenter()
+        maven {
+            url "https://maven.aliyun.com/nexus/content/repositories/releases"
+        }
         google()
+        jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.2.0'
-        // NOTE: Do not place your application dependencies here; they belong
-        // in the individual module build.gradle files
+        classpath 'com.android.tools.build:gradle:8.1.0'
     }
 }
 
 allprojects {
     repositories {
-        jcenter()
-        google()
-    }
-}
+        maven {
+            url "https://maven.aliyun.com/nexus/content/repositories/releases/"
+        }
+        maven {
+            url "https://maven.aliyun.com/nexus/content/repositories/snapshots"
+        }
 
-task clean(type: Delete) {
-    delete rootProject.buildDir
-}
+        google()
+        jcenter()
+    }
+}
\ No newline at end of file
diff --git a/android-example/decodesdk/build.gradle b/android-example/decodesdk/build.gradle
index 85c4077..f64e7fe 100644
--- a/android-example/decodesdk/build.gradle
+++ b/android-example/decodesdk/build.gradle
@@ -1,11 +1,11 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 28
+    compileSdk 36
 
     defaultConfig {
-        minSdkVersion 19
-        targetSdkVersion 28
+        minSdkVersion 26
+        targetSdkVersion 36
     }
     buildTypes {
         release {
@@ -17,6 +17,6 @@ android {
 }
 
 dependencies {
-    api fileTree(include: ['*.jar'], dir: 'libs')
-    api 'com.android.support:appcompat-v7:28.0.0'
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:appcompat-v7:28.0.0'
 }
diff --git a/android-example/decodesdk/src/main/AndroidManifest.xml b/android-example/decodesdk/src/main/AndroidManifest.xml
index 69e31bf..9912c54 100644
--- a/android-example/decodesdk/src/main/AndroidManifest.xml
+++ b/android-example/decodesdk/src/main/AndroidManifest.xml
@@ -1,6 +1,4 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-
->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <application android:allowBackup="true" android:label="@string/app_name"
         android:supportsRtl="true">
diff --git a/android-example/gradle.properties b/android-example/gradle.properties
index aac7c9b..ead51f6 100644
--- a/android-example/gradle.properties
+++ b/android-example/gradle.properties
@@ -1,17 +1,22 @@
 # Project-wide Gradle settings.
-
 # IDE (e.g. Android Studio) users:
 # Gradle settings configured through the IDE *will override*
 # any settings specified in this file.
-
 # For more details on how to configure your build environment visit
 # http://www.gradle.org/docs/current/userguide/build_environment.html
-
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
-org.gradle.jvmargs=-Xmx1536m
-
+org.gradle.jvmargs=-Xmx4096M \
+--add-exports=java.base/sun.nio.ch=ALL-UNNAMED \
+--add-opens=java.base/java.lang=ALL-UNNAMED \
+--add-opens=java.base/java.lang.reflect=ALL-UNNAMED \
+--add-opens=java.base/java.io=ALL-UNNAMED \
+--add-exports=jdk.unsupported/sun.misc=ALL-UNNAMED
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
+android.useDeprecatedNdk=true
+android.defaults.buildfeatures.buildconfig=true
+android.nonTransitiveRClass=false
+android.nonFinalResIds=false
\ No newline at end of file
diff --git a/android-example/gradle/wrapper/gradle-wrapper.properties b/android-example/gradle/wrapper/gradle-wrapper.properties
index 59bc51a..757b2fe 100644
--- a/android-example/gradle/wrapper/gradle-wrapper.properties
+++ b/android-example/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,6 @@
+#Thu Jan 04 08:41:31 CST 2024
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/android-example/web-api/build.gradle b/android-example/web-api/build.gradle
index 80d2ba6..ff970ab 100644
--- a/android-example/web-api/build.gradle
+++ b/android-example/web-api/build.gradle
@@ -3,10 +3,10 @@ apply plugin: 'com.android.library'
 android {
     signingConfigs {
     }
-    compileSdkVersion 33
+    compileSdk 36
     defaultConfig {
-        minSdkVersion 19
-        targetSdkVersion 33
+        minSdkVersion 26
+        targetSdkVersion 36
     }
     buildTypes {
         release {
@@ -20,7 +20,7 @@ android {
 }
 
 dependencies {
-    api files('libs/gson-2.8.0.jar')
-    api files('libs/okhttp-3.7.0.jar')
-    api files('libs/okio-1.12.0.jar')
+    implementation 'com.squareup.okhttp3:okhttp:4.11.0'
+    implementation 'com.squareup.okio:okio:3.4.0'
+    implementation 'com.google.code.gson:gson:2.13.2'
 }
diff --git a/android-example/web-api/src/main/java/net/irext/webapi/WebAPIs.java b/android-example/web-api/src/main/java/net/irext/webapi/WebAPIs.java
index 0448426..0f8a1b5 100644
--- a/android-example/web-api/src/main/java/net/irext/webapi/WebAPIs.java
+++ b/android-example/web-api/src/main/java/net/irext/webapi/WebAPIs.java
@@ -43,7 +43,7 @@ public class WebAPIs {
     // download bin from OSS
     private static final String IR_BIN_FILE_PREFIX = "irda_";
     private static final String IR_BIN_FILE_SUFFIX = ".bin";
-    private static final String IR_BIN_DOWNLOAD_PREFIX = "http://irext-debug.oss-cn-hangzhou.aliyuncs.com/";
+    private static final String IR_BIN_DOWNLOAD_PREFIX = "https://irext-release.oss-cn-hangzhou.aliyuncs.com/";
 
     private static final String SERVICE_SIGN_IN = "/app/app_login";
     private static final String SERVICE_LIST_CATEGORIES = "/indexing/list_categories";
@@ -81,6 +81,7 @@ public class WebAPIs {
     }
 
     private InputStream getFileByteStreamByURL(String url) throws IOException {
+        Log.d(TAG, "download remote binary file, url = " + url);
         Request request = new Request.Builder()
                 .url(url)
                 .get()