diff --git a/app/src/main/java/com/ckkj/defense_device/annotation/ApiEncrypt.kt b/app/src/main/java/com/ckkj/defense_device/annotation/ApiEncrypt.kt
deleted file mode 100644
index 28b909e..0000000
--- a/app/src/main/java/com/ckkj/defense_device/annotation/ApiEncrypt.kt
+++ /dev/null
@@ -1,23 +0,0 @@
-package com.ckkj.defense_device.annotation
-
-/**
- * API 加密注解
- *
- * 用于标记需要加密的 API 接口
- *
- * @param response 是否同时加密响应体，默认 false（仅加密请求）
- *
- * 使用示例：
- * - @ApiEncrypt  // 仅加密请求
- * - @ApiEncrypt(response = true)  // 请求和响应都加密
- */
-@Retention(AnnotationRetention.RUNTIME)
-@Target(AnnotationTarget.FUNCTION)
-annotation class ApiEncrypt(
-    /**
-     * 是否加密响应体
-     * - false (默认): 仅加密请求体
-     * - true: 请求体和响应体都加密
-     */
-    val response: Boolean = false
-)
diff --git a/app/src/main/java/com/ckkj/defense_device/bean/DeviceBean.kt b/app/src/main/java/com/ckkj/defense_device/bean/DeviceBean.kt
index f98b8a3..4324edc 100644
--- a/app/src/main/java/com/ckkj/defense_device/bean/DeviceBean.kt
+++ b/app/src/main/java/com/ckkj/defense_device/bean/DeviceBean.kt
@@ -9,11 +9,11 @@ data class DeviceBean(
     val deviceFamilyId: String? = null,
     val deviceImg: String? = null,
     val deviceName: String? = null,//设备名称
-    val deviceNo: String? = null,//设备编号
-    val deviceSn: String? = null,//设备序列号
+    val deviceNo: String = "",//设备编号
+    val deviceSn: String = "",//设备序列号
     val endTime: String? = null,//自动布放结束时间
     val expirationTime: String? = null,
-    val fwVer: String? = null,//固件版本
+    val fwVer: String= "",//固件版本
     val id: String? = null,
     val light: String? = null,//强光开启
     val patternPerception: String? = null,//识别模式
diff --git a/app/src/main/java/com/ckkj/defense_device/home/MessageActivity.kt b/app/src/main/java/com/ckkj/defense_device/home/MessageActivity.kt
index f57d297..56a091b 100644
--- a/app/src/main/java/com/ckkj/defense_device/home/MessageActivity.kt
+++ b/app/src/main/java/com/ckkj/defense_device/home/MessageActivity.kt
@@ -12,6 +12,7 @@ import com.ckkj.defense_device.databinding.MessageActivityBinding
 import com.ckkj.defense_device.utils.MessageStatusManager
 import com.ckkj.defense_device.utils.RetrofitNetwork
 import com.ckkj.defense_device.view.LoadingDialog
+import com.ckkj.defense_device.view.PullRefreshLayout
 import com.gyf.immersionbar.ImmersionBar
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -47,6 +48,14 @@ class MessageActivity : AppCompatActivity() {
         binding.ivBack.setOnClickListener { finish() }
         binding.rvMessageList.layoutManager = LinearLayoutManager(this)
         binding.rvMessageList.adapter = messageAdapter
+
+        binding.swipeRefreshLayout.setOnRefreshListener(object : PullRefreshLayout.OnRefreshListener {
+            override fun onRefresh() {
+                currentPage = 1
+                hasMoreData = true
+                loadMessageList()
+            }
+        })
         
         binding.rvMessageList.addOnScrollListener(object : RecyclerView.OnScrollListener() {
             override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
@@ -135,6 +144,7 @@ class MessageActivity : AppCompatActivity() {
                 if (currentPage == 1) {
                     withContext(Dispatchers.Main) {
                         hideLoading()
+                        binding.swipeRefreshLayout.finishRefresh()
                     }
                 }
             }
@@ -149,30 +159,30 @@ class MessageActivity : AppCompatActivity() {
     }
 
     private fun showLoading() {
-        binding.rvMessageList.visibility = View.GONE
+        binding.swipeRefreshLayout.visibility = View.GONE
         binding.emptyLayout.visibility = View.GONE
         binding.layoutNoNetwork.visibility = View.GONE
         loadingDialog.show()
     }
 
     private fun hideLoading() {
-        binding.rvMessageList.visibility = View.VISIBLE
+        binding.swipeRefreshLayout.visibility = View.VISIBLE
         loadingDialog.dismiss()
     }
 
     private fun showEmptyState() {
-        binding.rvMessageList.visibility = View.GONE
+        binding.swipeRefreshLayout.visibility = View.GONE
         binding.emptyLayout.visibility = View.VISIBLE
         binding.tvNoMoreData.visibility = View.GONE
     }
 
     private fun hideEmptyState() {
-        binding.rvMessageList.visibility = View.VISIBLE
+        binding.swipeRefreshLayout.visibility = View.VISIBLE
         binding.emptyLayout.visibility = View.GONE
     }
 
     private fun noNetwork() {
-        binding.rvMessageList.visibility = View.GONE
+        binding.swipeRefreshLayout.visibility = View.GONE
         binding.layoutNoNetwork.visibility = View.VISIBLE
         binding.tvNoMoreData.visibility = View.GONE
     }
diff --git a/app/src/main/java/com/ckkj/defense_device/liveVideo/DeviceInfoActivity.kt b/app/src/main/java/com/ckkj/defense_device/liveVideo/DeviceInfoActivity.kt
index 5d332f8..830979d 100644
--- a/app/src/main/java/com/ckkj/defense_device/liveVideo/DeviceInfoActivity.kt
+++ b/app/src/main/java/com/ckkj/defense_device/liveVideo/DeviceInfoActivity.kt
@@ -55,8 +55,8 @@ class DeviceInfoActivity : AppCompatActivity() {
     }
 
     private fun updateDeviceInfo(device: com.ckkj.defense_device.bean.DeviceBean) {
-        binding.tvDeviceModelValue.text = device.deviceNo.toString()
-        binding.tvDeviceNoValue.text = device.deviceSn.toString()
-        binding.tvFwVersionValue.text = device.fwVer.toString()
+        binding.tvDeviceModelValue.text = device.deviceNo?.toString()?: ""
+        binding.tvDeviceNoValue.text = device.deviceSn?.toString() ?: ""
+        binding.tvFwVersionValue.text = device.fwVer?.toString()?: ""
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/ckkj/defense_device/liveVideo/LinkedUserActivity.kt b/app/src/main/java/com/ckkj/defense_device/liveVideo/LinkedUserActivity.kt
index 643087d..e0d3c53 100644
--- a/app/src/main/java/com/ckkj/defense_device/liveVideo/LinkedUserActivity.kt
+++ b/app/src/main/java/com/ckkj/defense_device/liveVideo/LinkedUserActivity.kt
@@ -24,6 +24,7 @@ import com.ckkj.defense_device.utils.DeviceIdEvent
 import com.ckkj.defense_device.utils.DeviceUserUpdateEvent
 import com.ckkj.defense_device.utils.RetrofitNetwork
 import com.ckkj.defense_device.view.CustomDialogFragmentText
+import com.ckkj.defense_device.view.PullRefreshLayout
 import com.gyf.immersionbar.ImmersionBar
 import com.yanzhenjie.recyclerview.SwipeMenuItem
 import kotlinx.coroutines.CoroutineScope
@@ -95,9 +96,11 @@ class LinkedUserActivity : AppCompatActivity() {
 
         (binding.rvLinkedUser as RecyclerView).layoutManager = LinearLayoutManager(this)
 
-        binding.swipeRefresh.setOnRefreshListener {
-            fetchUserList()
-        }
+        binding.swipeRefresh.setOnRefreshListener(object : PullRefreshLayout.OnRefreshListener {
+            override fun onRefresh() {
+                fetchUserList()
+            }
+        })
 
         binding.rvLinkedUser.setSwipeMenuCreator { leftMenu, rightMenu, position ->
             if (mode == MODE_SETTINGS) {
@@ -229,7 +232,6 @@ class LinkedUserActivity : AppCompatActivity() {
     }
 
     private fun fetchUserList() {
-        binding.swipeRefresh.isRefreshing = true
         lifecycleScope.launch {
             try {
                 var deviceId: String? = null
@@ -238,7 +240,7 @@ class LinkedUserActivity : AppCompatActivity() {
                     if (deviceId.isNullOrEmpty()) {
                         Toast.makeText(this@LinkedUserActivity, "设备 ID 为空", Toast.LENGTH_SHORT).show()
                         withContext(Dispatchers.Main) {
-                            binding.swipeRefresh.isRefreshing = false
+                            binding.swipeRefresh.finishRefresh()
                         }
                         return@launch
                     }
@@ -249,7 +251,7 @@ class LinkedUserActivity : AppCompatActivity() {
                     RetrofitNetwork.getNetworkService().getFamilyMembers()
                 }
                 withContext(Dispatchers.Main) {
-                    binding.swipeRefresh.isRefreshing = false
+                    binding.swipeRefresh.finishRefresh()
                     if (response.code == 200 && response.data != null) {
                         if (mode == MODE_SETTINGS) {
                             updateDeviceUserList(response.data as List<DeviceUserBean>)
@@ -264,7 +266,7 @@ class LinkedUserActivity : AppCompatActivity() {
             } catch (e: Exception) {
                 e.printStackTrace()
                 withContext(Dispatchers.Main) {
-                    binding.swipeRefresh.isRefreshing = false
+                    binding.swipeRefresh.finishRefresh()
                     noNetwork()
                     Toast.makeText(this@LinkedUserActivity, R.string.network_request_failed, Toast.LENGTH_SHORT).show()
                 }
diff --git a/app/src/main/java/com/ckkj/defense_device/liveVideo/UserDetailsActivity.kt b/app/src/main/java/com/ckkj/defense_device/liveVideo/UserDetailsActivity.kt
index b0fe7a8..23b89fa 100644
--- a/app/src/main/java/com/ckkj/defense_device/liveVideo/UserDetailsActivity.kt
+++ b/app/src/main/java/com/ckkj/defense_device/liveVideo/UserDetailsActivity.kt
@@ -75,7 +75,7 @@ class UserDetailsActivity : AppCompatActivity() {
     }
 
     private fun updateUI(data: com.ckkj.defense_device.bean.ObtainInviterInformationBean) {
-        binding.tvContactName.text = data.nickName ?: "未知用户"
+        binding.tvContactName.text = data.nickName ?: ""
         binding.tvPhone.text = data.phonenumber ?: ""
         binding.tvIdCard.text = data.idCard ?: ""
         binding.tvMacAddress.text = data.mac ?: ""
diff --git a/app/src/main/java/com/ckkj/defense_device/personal/SettingsMenusActivity.kt b/app/src/main/java/com/ckkj/defense_device/personal/SettingsMenusActivity.kt
index 675a7f7..ad793bf 100644
--- a/app/src/main/java/com/ckkj/defense_device/personal/SettingsMenusActivity.kt
+++ b/app/src/main/java/com/ckkj/defense_device/personal/SettingsMenusActivity.kt
@@ -7,6 +7,7 @@ import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import com.ckkj.defense_device.databinding.SettingsMenusActivityBinding
 import com.gyf.immersionbar.ImmersionBar
+import java.io.File
 
 class SettingsMenusActivity : AppCompatActivity() {
     private lateinit var binding: SettingsMenusActivityBinding
@@ -25,6 +26,8 @@ class SettingsMenusActivity : AppCompatActivity() {
 
         val versionName = packageManager.getPackageInfo(packageName, 0).versionName
         binding.tvVersion.text = versionName
+        // 显示缓存大小
+        displayCacheSize()
 
         setupClickListeners()
     }
@@ -42,8 +45,9 @@ class SettingsMenusActivity : AppCompatActivity() {
 
         // 清除缓存
         binding.itemClearCache.setOnClickListener {
+            clearCache()
+            displayCacheSize()   // 更新缓存大小显示
             Toast.makeText(this, "缓存已清除", Toast.LENGTH_SHORT).show()
-            binding.tvCacheSize.text = "0 KB"
         }
 
         // 用户协议
@@ -62,4 +66,46 @@ class SettingsMenusActivity : AppCompatActivity() {
             startActivity(intent)
         }
     }
+    //缓存方法
+    private fun displayCacheSize() {
+        val cacheSize = getCacheSize()
+        val sizeString = when {
+            cacheSize >= 1024 * 1024 -> String.format("%.2f MB", cacheSize / (1024.0 * 1024.0))
+            else -> String.format("%d KB", cacheSize / 1024)
+        }
+        binding.tvCacheSize.text = sizeString
+    }
+
+    private fun getCacheSize(): Long {
+        val cacheDir = cacheDir
+        return getFolderSize(cacheDir)
+    }
+
+    private fun getFolderSize(dir: File?): Long {
+        var size = 0L
+        if (dir != null && dir.isDirectory) {
+            dir.listFiles()?.forEach { file ->
+                size += if (file.isFile) {
+                    file.length()
+                } else {
+                    getFolderSize(file)
+                }
+            }
+        }
+        return size
+    }
+
+    private fun clearCache() {
+        val cacheDir = cacheDir
+        deleteDir(cacheDir)
+    }
+
+    private fun deleteDir(dir: File?): Boolean {
+        if (dir != null && dir.isDirectory) {
+            dir.listFiles()?.forEach { file ->
+                deleteDir(file)
+            }
+        }
+        return dir?.delete() ?: false
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/ckkj/defense_device/utils/RetrofitNetwork.kt b/app/src/main/java/com/ckkj/defense_device/utils/RetrofitNetwork.kt
index e7a263f..1ff8c2a 100644
--- a/app/src/main/java/com/ckkj/defense_device/utils/RetrofitNetwork.kt
+++ b/app/src/main/java/com/ckkj/defense_device/utils/RetrofitNetwork.kt
@@ -14,8 +14,8 @@ import java.util.concurrent.TimeUnit
 object RetrofitNetwork {
 
     private const val DEFAULT_TIMEOUT = 30L
-    const val BASE_URL = "https://stem-boozy-margarine.ngrok-free.dev"
-    //const val BASE_URL = "http://service.reinkun.com:8001"
+    //const val BASE_URL = "https://stem-boozy-margarine.ngrok-free.dev"
+    const val BASE_URL = "http://service.reinkun.com:8001"
 
     private var retrofit: Retrofit? = null
     private val gson = Gson()
diff --git a/app/src/main/res/layout-land/linked_user_activity.xml b/app/src/main/res/layout-land/linked_user_activity.xml
index 675c16b..54ecb30 100644
--- a/app/src/main/res/layout-land/linked_user_activity.xml
+++ b/app/src/main/res/layout-land/linked_user_activity.xml
@@ -73,7 +73,7 @@
         </LinearLayout>
     </LinearLayout>
     <!-- 列表区域 -->
-    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+    <com.ckkj.defense_device.view.PullRefreshLayout
         android:id="@+id/swipeRefresh"
         android:layout_width="match_parent"
         android:layout_height="0dp"
@@ -84,8 +84,10 @@
             android:layout_height="match_parent"
             android:paddingHorizontal="16dp"
             android:paddingTop="8dp"
-            android:paddingBottom="16dp"/>
-    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
+            android:paddingBottom="16dp"
+            android:clipToPadding="false"
+            android:overScrollMode="never"/>
+    </com.ckkj.defense_device.view.PullRefreshLayout>
 
     <!-- 底部按钮 -->
     <LinearLayout
diff --git a/app/src/main/res/layout/dialog_family_switch.xml b/app/src/main/res/layout/dialog_family_switch.xml
index 199c2c8..37f9877 100644
--- a/app/src/main/res/layout/dialog_family_switch.xml
+++ b/app/src/main/res/layout/dialog_family_switch.xml
@@ -6,11 +6,11 @@
     android:orientation="vertical">
 
     <LinearLayout
-        android:layout_marginStart="30dp"
-        android:layout_marginEnd="30dp"
-        android:layout_marginTop="20dp"
+        android:layout_marginStart="20dp"
+        android:layout_marginEnd="20dp"
+        android:layout_marginTop="10dp"
         android:layout_width="match_parent"
-        android:layout_height="40dp"
+        android:layout_height="30dp"
         android:orientation="horizontal">
 
         <TextView
@@ -21,6 +21,7 @@
             android:text="@string/cancel"
             android:textColor="@color/gray"
             android:textSize="14dp"
+            android:textStyle="bold"
             android:clickable="true"
             android:focusable="true" />
 
@@ -37,6 +38,7 @@
             android:text="@string/confirm"
             android:textColor="@color/green"
             android:textSize="14dp"
+            android:textStyle="bold"
             android:clickable="true"
             android:focusable="true" />
     </LinearLayout>
@@ -45,6 +47,7 @@
         android:id="@+id/rvMessageList"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:maxHeight="150dp"
         android:clipToPadding="false"
         android:paddingStart="14dp"
         android:paddingTop="12dp"
diff --git a/app/src/main/res/layout/home_menu_fragment.xml b/app/src/main/res/layout/home_menu_fragment.xml
index e0e13e5..0f21bb1 100644
--- a/app/src/main/res/layout/home_menu_fragment.xml
+++ b/app/src/main/res/layout/home_menu_fragment.xml
@@ -3,6 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:background="@mipmap/home_back"
     tools:context=".home.HomeMenuFragment">
 
@@ -37,15 +38,13 @@
 
                     <TextView
                         android:id="@+id/tvCurrentFamily"
-                        android:layout_width="0dp"
+                        android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        android:layout_weight="1"
                         android:text="@string/my_family_home"
                         android:textColor="@color/black"
-                        android:textSize="20dp"
                         android:maxLines="1"
-                        android:ellipsize="end"
-                        android:textStyle="bold" />
+                        android:textSize="20sp"
+                        android:textStyle="bold"   />
 
                     <ImageView
                         android:id="@+id/ivFamilyArrow"
@@ -55,11 +54,6 @@
                         android:src="@mipmap/triangle" />
                 </LinearLayout>
 
-                <TextView
-                    android:layout_width="0dp"
-                    android:layout_height="wrap_content"
-                    android:layout_weight="1"/>
-
                 <LinearLayout
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
diff --git a/app/src/main/res/layout/item_switch_family.xml b/app/src/main/res/layout/item_switch_family.xml
index 51be970..af8e646 100644
--- a/app/src/main/res/layout/item_switch_family.xml
+++ b/app/src/main/res/layout/item_switch_family.xml
@@ -3,16 +3,17 @@
     android:id="@+id/itemFamily1"
     android:layout_width="match_parent"
     android:gravity="center"
-    android:layout_height="30dp">
+    android:layout_height="wrap_content">
 
     <TextView
+        android:paddingVertical="10dp"
         android:id="@+id/tvFamilyName"
         android:gravity="center"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="@string/my_family"
         android:textColor="@color/black"
-        android:textSize="16dp" />
+        android:textSize="14dp" />
 
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/linked_user_activity.xml b/app/src/main/res/layout/linked_user_activity.xml
index 74e859c..a950e3b 100644
--- a/app/src/main/res/layout/linked_user_activity.xml
+++ b/app/src/main/res/layout/linked_user_activity.xml
@@ -85,7 +85,7 @@
             android:layout_weight="1">
 
             <!-- 列表 -->
-            <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+            <com.ckkj.defense_device.view.PullRefreshLayout
                 android:id="@+id/swipeRefresh"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent">
@@ -93,8 +93,11 @@
                 <com.yanzhenjie.recyclerview.SwipeRecyclerView
                     android:id="@+id/rvLinkedUser"
                     android:layout_width="match_parent"
-                    android:layout_height="match_parent"/>
-            </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
+                    android:layout_height="match_parent"
+                    android:clipToPadding="false"
+                    android:overScrollMode="never"
+                    android:paddingBottom="16dp"/>
+            </com.ckkj.defense_device.view.PullRefreshLayout>
 
             <!-- 空页面 -->
             <LinearLayout
diff --git a/app/src/main/res/layout/message_activity.xml b/app/src/main/res/layout/message_activity.xml
index ce39c21..3c5bfe2 100644
--- a/app/src/main/res/layout/message_activity.xml
+++ b/app/src/main/res/layout/message_activity.xml
@@ -39,13 +39,23 @@
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 
-    <androidx.recyclerview.widget.RecyclerView
-        android:id="@+id/rvMessageList"
+    <com.ckkj.defense_device.view.PullRefreshLayout
+        android:id="@+id/swipeRefreshLayout"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
         android:layout_marginStart="20dp"
         android:layout_marginEnd="20dp"
-        tools:listitem="@layout/item_message_notice" />
+        android:layout_height="match_parent">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/rvMessageList"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:clipToPadding="false"
+            android:overScrollMode="never"
+            android:paddingBottom="16dp"
+            tools:listitem="@layout/item_message_notice" />
+
+    </com.ckkj.defense_device.view.PullRefreshLayout>
 
     <LinearLayout
         android:id="@+id/emptyLayout"
diff --git a/app/src/main/res/layout/settings_menus_activity.xml b/app/src/main/res/layout/settings_menus_activity.xml
index 2884e4e..5bfeb5e 100644
--- a/app/src/main/res/layout/settings_menus_activity.xml
+++ b/app/src/main/res/layout/settings_menus_activity.xml
@@ -99,7 +99,7 @@
                 android:id="@+id/tv_cache_size"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:text="11Kb"
+                android:text=""
                 android:textColor="#999999"
                 android:textSize="13sp" />