diff --git a/android-example/app/build.gradle b/android-example/app/build.gradle
index 5172b09..611e5aa 100644
--- a/android-example/app/build.gradle
+++ b/android-example/app/build.gradle
@@ -2,7 +2,6 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 28
-    buildToolsVersion '28.0.3'
     defaultConfig {
         applicationId "net.irext.ircontrol"
         minSdkVersion 19
@@ -27,6 +26,7 @@ android {
     }
     productFlavors {
     }
+    namespace 'net.irext.ircontrol'
 }
 
 dependencies {
diff --git a/android-example/app/src/main/AndroidManifest.xml b/android-example/app/src/main/AndroidManifest.xml
index f5d4d6b..6e5b411 100644
--- a/android-example/app/src/main/AndroidManifest.xml
+++ b/android-example/app/src/main/AndroidManifest.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-          package="net.irext.ircontrol">
+>
 
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
@@ -15,6 +15,7 @@
             android:icon="@mipmap/ir_logo"
             android:label="@string/app_name"
             android:supportsRtl="true"
+            android:networkSecurityConfig="@xml/network_security_config"
             android:theme="@android:style/Theme.Holo.Light.DarkActionBar">
 
         <activity
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 127eeb2..d89c43c 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
@@ -23,7 +23,7 @@ public class IRApplication extends com.activeandroid.app.Application {
 
     private static final String TAG = IRApplication.class.getSimpleName();
 
-    private static final String ADDRESS = "https://irext.net";
+    private static final String ADDRESS = "https://srv.irext.net";
     private static final String APP_NAME = "/irext-server";
 
     public WebAPIs mWeAPIs = WebAPIs.getInstance(ADDRESS, APP_NAME);
diff --git a/android-example/app/src/main/res/xml/network_security_config.xml b/android-example/app/src/main/res/xml/network_security_config.xml
new file mode 100644
index 0000000..27a1432
--- /dev/null
+++ b/android-example/app/src/main/res/xml/network_security_config.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<network-security-config>
+    <domain-config cleartextTrafficPermitted="true">
+        <domain includeSubdomains="true">irext-debug.oss-cn-hangzhou.aliyuncs.com</domain>
+    </domain-config>
+</network-security-config>
\ No newline at end of file
diff --git a/android-example/build.gradle b/android-example/build.gradle
index d73672e..2e2d29d 100644
--- a/android-example/build.gradle
+++ b/android-example/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.1'
+        classpath 'com.android.tools.build:gradle:7.4.2'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }
diff --git a/android-example/decodesdk/build.gradle b/android-example/decodesdk/build.gradle
index d431073..85c4077 100644
--- a/android-example/decodesdk/build.gradle
+++ b/android-example/decodesdk/build.gradle
@@ -6,8 +6,6 @@ android {
     defaultConfig {
         minSdkVersion 19
         targetSdkVersion 28
-        versionCode 1
-        versionName "1.0"
     }
     buildTypes {
         release {
@@ -15,6 +13,7 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    namespace 'net.irext.sdk'
 }
 
 dependencies {
diff --git a/android-example/decodesdk/src/main/AndroidManifest.xml b/android-example/decodesdk/src/main/AndroidManifest.xml
index c93ec06..69e31bf 100644
--- a/android-example/decodesdk/src/main/AndroidManifest.xml
+++ b/android-example/decodesdk/src/main/AndroidManifest.xml
@@ -1,6 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 
-    package="net.irext.sdk">
+>
 
     <application android:allowBackup="true" android:label="@string/app_name"
         android:supportsRtl="true">
diff --git a/android-example/gradle/wrapper/gradle-wrapper.properties b/android-example/gradle/wrapper/gradle-wrapper.properties
index a14a975..8049c68 100644
--- a/android-example/gradle/wrapper/gradle-wrapper.properties
+++ b/android-example/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,5 @@
-#Wed Nov 18 18:37:19 CST 2020
-distributionBase=GRADLE_USER_HOME
-distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-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 0d69142..80d2ba6 100644
--- a/android-example/web-api/build.gradle
+++ b/android-example/web-api/build.gradle
@@ -3,22 +3,20 @@ apply plugin: 'com.android.library'
 android {
     signingConfigs {
     }
-    compileSdkVersion 28
+    compileSdkVersion 33
     defaultConfig {
         minSdkVersion 19
-        targetSdkVersion 28
-        versionCode 1
-        versionName "0.1.2"
+        targetSdkVersion 33
     }
     buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-            versionNameSuffix '0.1.2'
         }
     }
     productFlavors {
     }
+    namespace 'net.irext.webapi'
 }
 
 dependencies {
diff --git a/android-example/web-api/src/main/AndroidManifest.xml b/android-example/web-api/src/main/AndroidManifest.xml
index 179f9a3..fc22de6 100644
--- a/android-example/web-api/src/main/AndroidManifest.xml
+++ b/android-example/web-api/src/main/AndroidManifest.xml
@@ -1,6 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 
-    package="net.irext.webapi">
+>
 
     <application android:allowBackup="true" android:supportsRtl="true">
 
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 11db8e0..12b2a01 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
@@ -35,7 +35,7 @@ public class WebAPIs {
 
     private static WebAPIs mInstance = null;
 
-    private static final String DEFAULT_ADDRESS = "http://irext.net";
+    private static final String DEFAULT_ADDRESS = "http://srv.irext.net";
     private static final String DEFAULT_APP = "/irext-server";
     private static String URL_PREFIX = DEFAULT_ADDRESS + DEFAULT_APP;
 
@@ -93,6 +93,7 @@ public class WebAPIs {
                 = MediaType.parse("application/json; charset=utf-8");
 
         RequestBody body = RequestBody.create(JSON, json);
+        Log.d(TAG, "post URL = " + url);
         Request request = new Request.Builder()
                 .url(url)
                 .post(body)