diff --git a/.gradle/8.13/executionHistory/executionHistory.bin b/.gradle/8.13/executionHistory/executionHistory.bin
index ac2247c..626cd1a 100644
Binary files a/.gradle/8.13/executionHistory/executionHistory.bin and b/.gradle/8.13/executionHistory/executionHistory.bin differ
diff --git a/.gradle/8.13/executionHistory/executionHistory.lock b/.gradle/8.13/executionHistory/executionHistory.lock
index 4f1c544..ea6113f 100644
Binary files a/.gradle/8.13/executionHistory/executionHistory.lock and b/.gradle/8.13/executionHistory/executionHistory.lock differ
diff --git a/.gradle/8.13/fileHashes/fileHashes.bin b/.gradle/8.13/fileHashes/fileHashes.bin
index 35158ad..5d04fdf 100644
Binary files a/.gradle/8.13/fileHashes/fileHashes.bin and b/.gradle/8.13/fileHashes/fileHashes.bin differ
diff --git a/.gradle/8.13/fileHashes/fileHashes.lock b/.gradle/8.13/fileHashes/fileHashes.lock
index 6b905b6..bae8709 100644
Binary files a/.gradle/8.13/fileHashes/fileHashes.lock and b/.gradle/8.13/fileHashes/fileHashes.lock differ
diff --git a/.gradle/8.13/fileHashes/resourceHashesCache.bin b/.gradle/8.13/fileHashes/resourceHashesCache.bin
index 466d964..17e6104 100644
Binary files a/.gradle/8.13/fileHashes/resourceHashesCache.bin and b/.gradle/8.13/fileHashes/resourceHashesCache.bin differ
diff --git a/.gradle/buildOutputCleanup/buildOutputCleanup.lock b/.gradle/buildOutputCleanup/buildOutputCleanup.lock
index fdbc501..009ba71 100644
Binary files a/.gradle/buildOutputCleanup/buildOutputCleanup.lock and b/.gradle/buildOutputCleanup/buildOutputCleanup.lock differ
diff --git a/.gradle/file-system.probe b/.gradle/file-system.probe
index a7a90ed..bf73d03 100644
Binary files a/.gradle/file-system.probe and b/.gradle/file-system.probe differ
diff --git a/.idea/deploymentTargetSelector.xml b/.idea/deploymentTargetSelector.xml
index ebc9c4f..aedc024 100644
--- a/.idea/deploymentTargetSelector.xml
+++ b/.idea/deploymentTargetSelector.xml
@@ -4,7 +4,7 @@
     <selectionStates>
       <SelectionState runConfigName="app">
         <option name="selectionMode" value="DROPDOWN" />
-        <DropdownSelection timestamp="2026-08-10T02:36:52.136106800Z">
+        <DropdownSelection timestamp="2026-08-14T02:57:51.212958400Z">
           <Target type="DEFAULT_BOOT">
             <handle>
               <DeviceId pluginId="PhysicalDevice" identifier="serial=D122222104A9" />
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 85e1069..d6a8c32 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -2,6 +2,9 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
+
     <application
         android:name=".CKApp"
         android:allowBackup="true"
@@ -278,7 +281,7 @@
 
         <provider
             android:name="androidx.core.content.FileProvider"
-            android:authorities="com.ck.ckcollar.app.fileprovider"
+            android:authorities="${applicationId}.fileprovider"
             android:exported="false"
             android:grantUriPermissions="true">
             <meta-data
diff --git a/app/src/main/java/com/ck/ckcollar/app/model/UpdateModel.kt b/app/src/main/java/com/ck/ckcollar/app/model/UpdateModel.kt
index 2d2a53d..fda635d 100644
--- a/app/src/main/java/com/ck/ckcollar/app/model/UpdateModel.kt
+++ b/app/src/main/java/com/ck/ckcollar/app/model/UpdateModel.kt
@@ -1,11 +1,10 @@
 package com.ck.ckcollar.app.model
 
 class UpdateModel : CkBaseModel(){
-    //{"androidVersion":1,"content":"","iosVersion":1,"isForce":false}
-
-    var androidVersion : Int = 0
-    var iosVersion : Int = 0
-    var isForce : Boolean = false
-    var content : String? = ""
-
-}
\ No newline at end of file
+    var content: String? = ""
+    var downloadUrl: String? = ""
+    var hasUpdate: Boolean = false
+    var isForce: Boolean = false
+    var versionCode: Int = 0
+    var versionName: String? = ""
+}
diff --git a/app/src/main/java/com/ck/ckcollar/app/ui/act/home/MainActivity.kt b/app/src/main/java/com/ck/ckcollar/app/ui/act/home/MainActivity.kt
index 33d093e..8ce3177 100644
--- a/app/src/main/java/com/ck/ckcollar/app/ui/act/home/MainActivity.kt
+++ b/app/src/main/java/com/ck/ckcollar/app/ui/act/home/MainActivity.kt
@@ -1,44 +1,62 @@
 package com.ck.ckcollar.app.ui.act.home
 
+import android.Manifest
 import android.content.Intent
-import android.graphics.Color
+import android.content.pm.PackageManager
+import android.net.Uri
 import android.os.Build
 import android.os.Bundle
 import android.os.SystemClock
-import android.view.MenuItem
+import android.provider.Settings
 import android.view.View
-import android.view.WindowInsets
-import android.widget.TextView
 import androidx.activity.OnBackPressedCallback
-import androidx.viewpager2.widget.ViewPager2
-import androidx.viewpager2.widget.ViewPager2.OnPageChangeCallback
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.core.content.ContextCompat
+import androidx.core.content.FileProvider
 import com.ck.ckcollar.app.R
 import com.ck.ckcollar.app.databinding.ActivityMainBinding
-import com.ck.ckcollar.app.databinding.FragmentHomeBinding
-import com.ck.ckcollar.app.model.CustomerStatusModel
 import com.ck.ckcollar.app.model.UpdateModel
 import com.ck.ckcollar.app.ui.act.home.adapter.MainFragmentAdapter
 import com.ck.ckcollar.app.ui.act.home.fragment.HealthFragment
 import com.ck.ckcollar.app.ui.act.home.fragment.HomeFragment
 import com.ck.ckcollar.app.ui.act.home.fragment.MineFragment
 import com.ck.ckcollar.app.ui.act.home.fragment.ShopFragment
-import com.ck.ckcollar.app.ui.base.CKBaseActivity
 import com.ck.ckcollar.app.ui.base.CKBaseFragment
 import com.ck.ckcollar.app.ui.base.CKLHBaseActivity
 import com.ck.ckcollar.app.ui.dialog.CKUpdateAlertDialog
+import com.ck.ckcollar.app.utils.AppUpdateDownloader
 import com.ck.ckcollar.app.utils.networkone.ICallback
 import com.ck.ckcollar.app.utils.networkone.TTHttpClient
 import com.ck.ckcollar.app.utils.networkone.model.TTRequestParam
-import com.cyclone.shadowsocks.ui.frg.TTBaseFragment
-import com.google.android.material.navigation.NavigationBarView
 import com.google.gson.Gson
-
-import com.tt.kit.base.TTBaseActivity
-import com.tt.kit.utils.TTUtils
+import java.io.File
 
 
 class MainActivity : CKLHBaseActivity(),View.OnClickListener {
     private var lastBackPressedAt = 0L
+    private var pendingUpdate: UpdateModel? = null
+    private var updateDialog: CKUpdateAlertDialog? = null
+    private var pendingApk: File? = null
+
+    private val notificationPermissionLauncher = registerForActivityResult(
+        ActivityResultContracts.RequestPermission()
+    ) { granted ->
+        if (granted) {
+            pendingUpdate?.let(::startUpdateDownload)
+        } else {
+            toast(getString(R.string.notification_permission_required))
+        }
+    }
+
+    private val installPermissionLauncher = registerForActivityResult(
+        ActivityResultContracts.StartActivityForResult()
+    ) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O || packageManager.canRequestPackageInstalls()) {
+            pendingApk?.let(::installApk)
+        } else {
+            toast(getString(R.string.install_permission_required))
+        }
+    }
 
     lateinit var mainBinding: ActivityMainBinding
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -156,7 +174,7 @@ class MainActivity : CKLHBaseActivity(),View.OnClickListener {
 //            }
 //        }).show()
 
-//        checkUpdate()
+        checkUpdate()
 
     }
 
@@ -207,15 +225,16 @@ class MainActivity : CKLHBaseActivity(),View.OnClickListener {
         TTHttpClient.get(this,"更新", TTRequestParam(),object : ICallback{
             override fun onSuccess(data: String) {
 
-                var mode = Gson().fromJson<UpdateModel>(data,UpdateModel::class.java)
+                val model = Gson().fromJson<UpdateModel>(data, UpdateModel::class.java)
 
-                if (mode.androidVersion != TTUtils.getVersionCode(this@MainActivity)){
-                    CKUpdateAlertDialog(this@MainActivity,mode
-                        .content!!,mode.isForce,object : CKUpdateAlertDialog.AlertClickListener{
+                if (model.hasUpdate) {
+                    val updateContent = model.content.orEmpty().replace("\\n", "\n")
+                    updateDialog = CKUpdateAlertDialog(this@MainActivity, updateContent,
+                        model.isForce, object : CKUpdateAlertDialog.AlertClickListener{
                         override fun onBack(isConfirm: Boolean) {
-
+                            if (isConfirm) requestUpdateDownload(model)
                         }
-                    }).show()
+                    }).also { it.show() }
                 }
 
             }
@@ -226,6 +245,87 @@ class MainActivity : CKLHBaseActivity(),View.OnClickListener {
         })
     }
 
+    private fun requestUpdateDownload(model: UpdateModel) {
+        if (model.downloadUrl.isNullOrBlank()) {
+            toast(getString(R.string.update_url_invalid))
+            return
+        }
+        pendingUpdate = model
+        if (!model.isForce && Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU &&
+            ContextCompat.checkSelfPermission(this, Manifest.permission.POST_NOTIFICATIONS) !=
+            PackageManager.PERMISSION_GRANTED
+        ) {
+            notificationPermissionLauncher.launch(Manifest.permission.POST_NOTIFICATIONS)
+            return
+        }
+        startUpdateDownload(model)
+    }
+
+    private fun startUpdateDownload(model: UpdateModel) {
+        pendingUpdate = null
+        if (model.isForce) {
+            updateDialog?.showDownloadProgress()
+        } else {
+            updateDialog?.dismiss()
+            updateDialog = null
+        }
+        AppUpdateDownloader(applicationContext).download(
+            model.downloadUrl.orEmpty(),
+            showNotification = !model.isForce,
+            callback = object : AppUpdateDownloader.Callback {
+                override fun onProgress(percent: Int) {
+                    runOnUiThread { updateDialog?.updateProgress(percent) }
+                }
+
+                override fun onComplete(apkFile: File) {
+                    runOnUiThread {
+                        if (model.isForce) {
+                            updateDialog?.dismiss()
+                            updateDialog = null
+                        }
+                        pendingApk = apkFile
+                        installApk(apkFile)
+                    }
+                }
+
+                override fun onError(message: String) {
+                    runOnUiThread {
+                        updateDialog?.showDownloadError()
+                        toast(getString(R.string.update_download_failed, message))
+                    }
+                }
+            }
+        )
+    }
+
+    private fun installApk(apkFile: File) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O &&
+            !packageManager.canRequestPackageInstalls()
+        ) {
+            toast(getString(R.string.install_permission_required))
+            installPermissionLauncher.launch(
+                Intent(
+                    Settings.ACTION_MANAGE_UNKNOWN_APP_SOURCES,
+                    Uri.parse("package:$packageName")
+                )
+            )
+            return
+        }
+        pendingApk = null
+        val apkUri = FileProvider.getUriForFile(
+            this,
+            "$packageName.fileprovider",
+            apkFile
+        )
+        startActivity(
+            Intent(Intent.ACTION_VIEW).apply {
+                setDataAndType(apkUri, "application/vnd.android.package-archive")
+                addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+                addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+            }
+        )
+    }
+
     companion object {
         const val EXTRA_SHOW_HOME = "extra_show_home"
         private const val EXIT_INTERVAL_MS = 2_000L
diff --git a/app/src/main/java/com/ck/ckcollar/app/ui/act/shop/OrderActivity.kt b/app/src/main/java/com/ck/ckcollar/app/ui/act/shop/OrderActivity.kt
index 10f8d28..dc98647 100644
--- a/app/src/main/java/com/ck/ckcollar/app/ui/act/shop/OrderActivity.kt
+++ b/app/src/main/java/com/ck/ckcollar/app/ui/act/shop/OrderActivity.kt
@@ -357,15 +357,17 @@ class OrderActivity : CKBaseActivity() {
             }
 
             override fun onFailed(code: String, msg: String) {
-
                 toast(msg)
+            }
+
+            override fun onFailed(code: String, msg: String, data: String) {
+                onFailed(code, msg)
                 //原有【不足】的字符串判断条件
-                if (code.equals("502")){
-                    var a = 0;
-//                    toActivity(
-//                        MyOrderActivity::class.java,
-//                        DataCollection().apply { add(Data("pos", "1")) })
-//                    finish()
+                if (code == "502") {
+                    val orderId = JSONObject(data).optInt("orderId")
+                    if (orderId > 0) {
+                        model.orderId = orderId
+                    }
                 }
             }
         })
diff --git a/app/src/main/java/com/ck/ckcollar/app/ui/dialog/CKUpdateAlertDialog.kt b/app/src/main/java/com/ck/ckcollar/app/ui/dialog/CKUpdateAlertDialog.kt
index c6878ee..63464d6 100644
--- a/app/src/main/java/com/ck/ckcollar/app/ui/dialog/CKUpdateAlertDialog.kt
+++ b/app/src/main/java/com/ck/ckcollar/app/ui/dialog/CKUpdateAlertDialog.kt
@@ -19,10 +19,13 @@ class CKUpdateAlertDialog(
     var alertClickListener: AlertClickListener
 ) : TTBaseDialog(mContext){
 
+    private var binding: DialogUpdateAlertBinding? = null
+
    override fun show() {
         try {
-            var dialogAlertBinding =
+            val dialogAlertBinding =
                 DialogUpdateAlertBinding.inflate(LayoutInflater.from(mContext))
+            binding = dialogAlertBinding
 
             dialogAlertBinding.textAlert.text = alertText
             if (isForce){
@@ -39,8 +42,6 @@ class CKUpdateAlertDialog(
             //dialogView.findViewById(R.id.photo).setVisibility(View.GONE);
             dialogAlertBinding.btnConfirm.setOnClickListener(object : View.OnClickListener {
                     override fun onClick(v: View?) {
-                        // TODO Auto-generated method stub
-                        cancel()
                         alertClickListener.onBack(true)
                     }
                 })
@@ -55,8 +56,36 @@ class CKUpdateAlertDialog(
        setCancelable(false)
     }
 
+    fun showDownloadProgress() {
+        binding?.apply {
+            progressContainer.visibility = View.VISIBLE
+            btnConfirm.visibility = View.GONE
+            btnCenlel.visibility = View.GONE
+            textAlert.visibility = View.GONE
+            title.text = mContext.getString(com.ck.ckcollar.app.R.string.update_downloading, 0)
+        }
+    }
+
+    fun updateProgress(progress: Int) {
+        binding?.apply {
+            updateProgress.progress = progress
+            progressText.text = "$progress%"
+            title.text = mContext.getString(com.ck.ckcollar.app.R.string.update_downloading, progress)
+        }
+    }
+
+    fun showDownloadError() {
+        binding?.apply {
+            progressContainer.visibility = View.GONE
+            btnConfirm.visibility = View.VISIBLE
+            btnCenlel.visibility = if (isForce) View.GONE else View.VISIBLE
+            textAlert.visibility = View.VISIBLE
+            title.text = mContext.getString(com.ck.ckcollar.app.R.string.update_content)
+        }
+    }
+
 
     interface AlertClickListener {
         fun onBack(isConfirm : Boolean)
     }
-}
\ No newline at end of file
+}
diff --git a/app/src/main/java/com/ck/ckcollar/app/utils/networkone/ICallback.kt b/app/src/main/java/com/ck/ckcollar/app/utils/networkone/ICallback.kt
index a72df8a..8b7d132 100644
--- a/app/src/main/java/com/ck/ckcollar/app/utils/networkone/ICallback.kt
+++ b/app/src/main/java/com/ck/ckcollar/app/utils/networkone/ICallback.kt
@@ -2,5 +2,8 @@ package com.ck.ckcollar.app.utils.networkone
 interface ICallback {
     fun onSuccess(data: String)
     fun onFailed(code: String, msg: String)
+    fun onFailed(code: String, msg: String, data: String) {
+        onFailed(code, msg)
+    }
     fun onComplete() {}
 }
diff --git a/app/src/main/java/com/ck/ckcollar/app/utils/networkone/TTHttpClient.kt b/app/src/main/java/com/ck/ckcollar/app/utils/networkone/TTHttpClient.kt
index 5c9aea7..e7d33fe 100644
--- a/app/src/main/java/com/ck/ckcollar/app/utils/networkone/TTHttpClient.kt
+++ b/app/src/main/java/com/ck/ckcollar/app/utils/networkone/TTHttpClient.kt
@@ -491,7 +491,7 @@ fun postJson(
                 } else {
                     activity.runOnUiThread {
                         activity.hiddenProgeassDialog()
-                        iCallback.onFailed(getCode(model), getMessage(model))
+                        iCallback.onFailed(getCode(model), getMessage(model), model.toString())
                     }
                 }
             }
diff --git a/app/src/main/res/layout/dialog_update_alert.xml b/app/src/main/res/layout/dialog_update_alert.xml
index 5340792..2ee361f 100644
--- a/app/src/main/res/layout/dialog_update_alert.xml
+++ b/app/src/main/res/layout/dialog_update_alert.xml
@@ -31,9 +31,36 @@
             android:layout_marginTop="10dp"
             android:text="更新内容"
             android:textColor="@color/textColor"
-            android:textSize="16sp"
+            android:textSize="14sp"
              />
 
+        <LinearLayout
+            android:id="@+id/progressContainer"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="24dp"
+            android:orientation="vertical"
+            android:visibility="gone">
+
+            <ProgressBar
+                android:id="@+id/updateProgress"
+                style="?android:attr/progressBarStyleHorizontal"
+                android:layout_width="match_parent"
+                android:layout_height="8dp"
+                android:max="100"
+                android:progress="0" />
+
+            <TextView
+                android:id="@+id/progressText"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:gravity="center"
+                android:text="0%"
+                android:textColor="@color/textSecondColor"
+                android:textSize="13sp" />
+        </LinearLayout>
+
         
         <com.ck.ckcollar.app.widget.CKButton
             android:id="@+id/btnConfirm"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 6f99f35..e5234f3 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -603,4 +603,10 @@
     <string name="input_question">请输入问题</string>
     <string name="pet_note">宠物常识</string>
 
+    <string name="update_downloading">正在下载更新 %1$d%%</string>
+    <string name="update_download_failed">更新下载失败：%1$s</string>
+    <string name="update_url_invalid">更新下载地址不可用</string>
+    <string name="notification_permission_required">需要开启通知权限，以便在通知栏显示下载进度</string>
+    <string name="install_permission_required">请允许本应用安装更新，授权后返回即可继续安装</string>
+    <string name="update_content">更新内容</string>
 </resources>
diff --git a/app/src/main/res/xml/file_paths.xml b/app/src/main/res/xml/file_paths.xml
index 076ef2b..4ceb992 100644
--- a/app/src/main/res/xml/file_paths.xml
+++ b/app/src/main/res/xml/file_paths.xml
@@ -2,6 +2,7 @@
 <paths>
     <!-- 对应 getExternalFilesDir(Environment.DIRECTORY_PICTURES) -->
     <external-files-path name="my_images" path="Pictures" />
+    <external-files-path name="app_updates" path="updates" />
     <!-- 对应 getExternalFilesDir(Environment.DIRECTORY_DCIM) -->
     <external-files-path name="dcim" path="DCIM" />
     <!-- 对应外部存储根目录 -->