diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 4088f31..4c5a35b 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -18,7 +18,7 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Sample">
         <activity
-            android:name=".FaceActivity"
+            android:name=".MainActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
diff --git a/app/src/main/cpp/main.cpp b/app/src/main/cpp/main.cpp
index dd16c3f..22b784b 100644
--- a/app/src/main/cpp/main.cpp
+++ b/app/src/main/cpp/main.cpp
@@ -87,7 +87,7 @@ void processWithVulkan(uint8_t* data, int width, int height, int format,
 
 extern "C"
 JNIEXPORT void JNICALL
-Java_com_hmwl_sample_FaceActivity_processImageNative(JNIEnv *env, jobject thiz, jobject buffer,
+Java_com_hmwl_face_FaceActivity_processImageNative(JNIEnv *env, jobject thiz, jobject buffer,
                                                      jint width, jint height, jint format,
                                                      jint row_stride, jint pixel_stride,
                                                      jint rotation) {
@@ -107,7 +107,7 @@ Java_com_hmwl_sample_FaceActivity_processImageNative(JNIEnv *env, jobject thiz,
 
 extern "C"
 JNIEXPORT void JNICALL
-Java_com_hmwl_sample_FaceActivity_passDataToNative(JNIEnv *env, jobject thiz, jobject buffer,
+Java_com_hmwl_face_FaceActivity_passDataToNative(JNIEnv *env, jobject thiz, jobject buffer,
                                                    jint point_count, jint width, jint height) {
     float* pos = static_cast<float*>(env->GetDirectBufferAddress(buffer));
 
diff --git a/app/src/main/java/com/hmwl/sample/FaceActivity.java b/app/src/main/java/com/hmwl/face/FaceActivity.java
similarity index 99%
rename from app/src/main/java/com/hmwl/sample/FaceActivity.java
rename to app/src/main/java/com/hmwl/face/FaceActivity.java
index 75e104b..ea0e1cb 100644
--- a/app/src/main/java/com/hmwl/sample/FaceActivity.java
+++ b/app/src/main/java/com/hmwl/face/FaceActivity.java
@@ -1,4 +1,4 @@
-package com.hmwl.sample;
+package com.hmwl.face;
 
 import android.Manifest;
 import android.content.pm.PackageManager;
diff --git a/app/src/main/java/com/hmwl/sample/FaceLandmarkerHelper.kt b/app/src/main/java/com/hmwl/face/FaceLandmarkerHelper.kt
similarity index 98%
rename from app/src/main/java/com/hmwl/sample/FaceLandmarkerHelper.kt
rename to app/src/main/java/com/hmwl/face/FaceLandmarkerHelper.kt
index 6a5e01c..b9ddb46 100644
--- a/app/src/main/java/com/hmwl/sample/FaceLandmarkerHelper.kt
+++ b/app/src/main/java/com/hmwl/face/FaceLandmarkerHelper.kt
@@ -1,12 +1,8 @@
-
-package com.hmwl.sample;
+package com.hmwl.face
 
 import android.content.Context
 import android.graphics.Bitmap
-import android.graphics.BitmapFactory
 import android.graphics.Matrix
-import android.media.MediaMetadataRetriever
-import android.net.Uri
 import android.os.SystemClock
 import android.util.Log
 import androidx.annotation.VisibleForTesting
diff --git a/app/src/main/java/com/hmwl/sample/MainActivity.java b/app/src/main/java/com/hmwl/sample/MainActivity.java
index b90ba80..a6772c3 100644
--- a/app/src/main/java/com/hmwl/sample/MainActivity.java
+++ b/app/src/main/java/com/hmwl/sample/MainActivity.java
@@ -2,8 +2,7 @@ package com.hmwl.sample;
 
 
 import android.os.Bundle;
-import com.google.androidgamesdk.GameActivity;
-
+import com.hmwl.face.FaceActivity;
 
 public class MainActivity extends FaceActivity {
     private static final String TAG = "MainActivity";