diff --git a/Android/app/build.gradle.kts b/Android/app/build.gradle.kts
index 3604ab6..1988885 100644
--- a/Android/app/build.gradle.kts
+++ b/Android/app/build.gradle.kts
@@ -11,8 +11,8 @@ android {
         applicationId = "com.krxkli.crackmm"
         minSdk = 24
         targetSdk = 34
-        versionCode = 2
-        versionName = "1.1"
+        versionCode = 3
+        versionName = "1.1.1"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
 
@@ -32,6 +32,7 @@ android {
                 getDefaultProguardFile("proguard-android-optimize.txt"),
                 "proguard-rules.pro"
             )
+            signingConfig = signingConfigs.getByName("debug")
         }
     }
     compileOptions {
diff --git a/Android/app/release/app-release.apk b/Android/app/release/app-release.apk
index f8f448c..90b96b5 100644
Binary files a/Android/app/release/app-release.apk and b/Android/app/release/app-release.apk differ
diff --git a/Android/app/release/baselineProfiles/0/app-release.dm b/Android/app/release/baselineProfiles/0/app-release.dm
index cd692ff..411050d 100644
Binary files a/Android/app/release/baselineProfiles/0/app-release.dm and b/Android/app/release/baselineProfiles/0/app-release.dm differ
diff --git a/Android/app/release/baselineProfiles/1/app-release.dm b/Android/app/release/baselineProfiles/1/app-release.dm
index 759befe..1c15e34 100644
Binary files a/Android/app/release/baselineProfiles/1/app-release.dm and b/Android/app/release/baselineProfiles/1/app-release.dm differ
diff --git a/Android/app/release/output-metadata.json b/Android/app/release/output-metadata.json
index d48980b..c212eac 100644
--- a/Android/app/release/output-metadata.json
+++ b/Android/app/release/output-metadata.json
@@ -11,8 +11,8 @@
       "type": "SINGLE",
       "filters": [],
       "attributes": [],
-      "versionCode": 2,
-      "versionName": "1.1",
+      "versionCode": 3,
+      "versionName": "1.1.1",
       "outputFile": "app-release.apk"
     }
   ],
diff --git a/Android/app/src/main/cpp/CMakeLists.txt b/Android/app/src/main/cpp/CMakeLists.txt
index 33e75b8..eceb325 100644
--- a/Android/app/src/main/cpp/CMakeLists.txt
+++ b/Android/app/src/main/cpp/CMakeLists.txt
@@ -11,6 +11,17 @@ cmake_minimum_required(VERSION 3.22.1)
 # build script scope).
 project("crackmm")
 
+# Hidden symbol table
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility=hidden")
+# Optimization level
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
+# Other compilation options
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-inline -fstack-protector")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-inline -fstack-protector")
+
+
 # Creates and names a library, sets it as either STATIC
 # or SHARED, and provides the relative paths to its source code.
 # You can define multiple libraries, and CMake builds them for you.
@@ -39,7 +50,7 @@ add_library(${CMAKE_PROJECT_NAME} SHARED
         core/pkt_processor.cpp
         core/cheat.cpp
         core/pcap_dumper.cpp
-)
+        core/acquire_permission.cpp)
 
 
 # Specifies libraries CMake should link to your target library. You
diff --git a/Android/app/src/main/cpp/core/acquire_permission.cpp b/Android/app/src/main/cpp/core/acquire_permission.cpp
new file mode 100644
index 0000000..f916dcc
--- /dev/null
+++ b/Android/app/src/main/cpp/core/acquire_permission.cpp
@@ -0,0 +1,40 @@
+/*
+ * @Author: krxkli krxkli@tencent.com
+ * @Date: 2024-09-12 21:07:35
+ * @LastEditors: krxkli krxkli@tencent.com
+ * @LastEditTime: 2024-09-12 21:10:30
+ * @FilePath: \CommonNative\pcap_dump\acquire_permission.cpp
+ * @Description: 
+ * 
+ * Copyright (c) 2024 by ${krxkli}, All Rights Reserved. 
+ */
+#include <cstring>
+#include <cstdlib>
+#include <ctime>
+#include "pcap_dumper.h"
+
+/**
+ * @description: Configure the PCAP Files output directory
+ * @return {*}
+ */
+void GetUserDownloadDir(const char* dir) {
+    const char TAG[] = "AcquirePermission";
+
+    time_t currentTime;
+    struct tm *localTime;
+    char dateTimeString[100];
+    // 获取当前时间
+    currentTime = time(nullptr);
+
+    // 将当前时间转换为本地时间
+    localTime = localtime(&currentTime);
+
+    // 格式化日期和时间字符串
+    strftime(dateTimeString, sizeof(dateTimeString), "Crack_%Y_%m_%d_%H_%M_%S.pcap", localTime);
+
+    // 连接路径
+    char file_name[256];
+    sprintf(file_name, "%s/%s", dir, dateTimeString);
+
+    pcap_dump_init(file_name);
+}
diff --git a/Android/app/src/main/cpp/core/cheat.h b/Android/app/src/main/cpp/core/cheat.h
index 9662a91..598f42f 100644
--- a/Android/app/src/main/cpp/core/cheat.h
+++ b/Android/app/src/main/cpp/core/cheat.h
@@ -5,7 +5,7 @@
 #ifndef CRACKMM_CHEAT_H
 #define CRACKMM_CHEAT_H
 
-extern "C" { ;
+extern "C" {
 #include "zdtun.h"
 }
 
diff --git a/Android/app/src/main/cpp/core/pcap_dumper.cpp b/Android/app/src/main/cpp/core/pcap_dumper.cpp
index 329e10f..2c80b78 100644
--- a/Android/app/src/main/cpp/core/pcap_dumper.cpp
+++ b/Android/app/src/main/cpp/core/pcap_dumper.cpp
@@ -5,7 +5,7 @@
 
 #define MAX_PACKET_SIZE 65535
 
-FILE *file = nullptr;
+static FILE *file = nullptr;
 
 void pcap_dump_init(const char* file_name) {
     if(file != nullptr) {
diff --git a/Android/app/src/main/cpp/core/pcap_dumper.h b/Android/app/src/main/cpp/core/pcap_dumper.h
index 116d0c0..2310b2f 100644
--- a/Android/app/src/main/cpp/core/pcap_dumper.h
+++ b/Android/app/src/main/cpp/core/pcap_dumper.h
@@ -34,5 +34,6 @@ typedef struct {
 void pcap_dump_init(const char* file_name);
 void pcap_dump_data(u_char* pkt, uint32_t len);
 void pcap_dump_finish();
+void GetUserDownloadDir(const char* dir);
 
 #endif //CRACKMM_PCAP_DUMPER_H
diff --git a/Android/app/src/main/cpp/core/pkt_processor.cpp b/Android/app/src/main/cpp/core/pkt_processor.cpp
index baa392e..2fb9a39 100644
--- a/Android/app/src/main/cpp/core/pkt_processor.cpp
+++ b/Android/app/src/main/cpp/core/pkt_processor.cpp
@@ -70,7 +70,6 @@ bool activate(zdtun_t *tun, zdtun_pkt_t *pkt, char *origin_data) {
                     log("hook: %s", inet_ntoa(target_addr.sin_addr));
 
                     // dump pcap
-                    pcap_dump_init("/sdcard/Download/crackmm.pcap");
                     pcap_dump_data((u_char *)pkt->buf, pkt->len);
                     return false;
                 }
@@ -227,7 +226,6 @@ void handle_thread(int fd) {
 extern "C"
 JNIEXPORT void JNICALL
 Java_com_krxkli_crackmm_core_PktProcessor_handleProcessPacket(JNIEnv *env, jobject thiz, jint fd) {
-// TODO: implement handleProcessPacket()
     log("handleProcessPacket")
     // 保存 Env 状态
     ::env = env;
@@ -255,4 +253,21 @@ Java_com_krxkli_crackmm_core_PktProcessor_handleProcessPacket(JNIEnv *env, jobje
 
         cv.wait(lock);
     }
+}
+extern "C"
+JNIEXPORT void JNICALL
+Java_com_krxkli_crackmm_MainActivity_preparePcapOutputPath(JNIEnv *env, jobject thiz,
+                                                           jstring path) {
+
+    jboolean isCopy;
+    const char* pathStr = env->GetStringUTFChars(path, &isCopy);
+    if (isCopy == JNI_TRUE) {
+        __android_log_print(ANDROID_LOG_INFO, "MainActivity", "isCopy = true");
+    } else {
+        __android_log_print(ANDROID_LOG_INFO, "MainActivity", "isCopy = false");
+    }
+
+    GetUserDownloadDir(pathStr);
+    env->ReleaseStringUTFChars(path, pathStr);
+
 }
\ No newline at end of file
diff --git a/Android/app/src/main/java/com/krxkli/crackmm/MainActivity.kt b/Android/app/src/main/java/com/krxkli/crackmm/MainActivity.kt
index 1333a14..8392449 100644
--- a/Android/app/src/main/java/com/krxkli/crackmm/MainActivity.kt
+++ b/Android/app/src/main/java/com/krxkli/crackmm/MainActivity.kt
@@ -48,10 +48,13 @@ class MainActivity : AppCompatActivity() {
         binding.activeKey.isEnabled = false
         binding.textView.setText(getString(R.string.vpn_start_sucess))
 
+        preparePcapOutputPath(this.filesDir.absolutePath)
+
         val intent = Intent(this, ActiveService::class.java)
         ContextCompat.startForegroundService(this, intent)
     }
 
+    private external fun preparePcapOutputPath(path : String)
 
     companion object {
         // Used to load the 'crackmm' library on application startup.