feat(WelcomeActivity): 添加网络连接检查功能

- 引入 ConnectivityManager 和 NetworkCapabilities 网络状态检测
- 添加 showMessage 扩展函数用于显示网络提示
- 在跳转到任务列表前验证网络连接状态
- 在语音识别触发前检查网络可用性
- 在 onResume 中增加网络连接检查
- 为 ChatActivity 和 TaskCenter 跳转添加网络验证
- 实现 runWithNetwork 函数封装网络检查逻辑
- 创建 ensureNetworkAvailable 函数显示网络状态提示
- 开发 isNetworkAvailable 函数检测互联网连接能力

app/src/main/java/com/nova/brain/glass/ui/WelcomeActivity.kt

@@ -1,6 +1,8 @@
 package com.nova.brain.glass.ui
 
 import android.content.Intent
+import android.net.ConnectivityManager
+import android.net.NetworkCapabilities
 import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
@@ -14,6 +16,7 @@ import com.nova.brain.glass.helper.OfflineCmdListener
 import com.nova.brain.glass.helper.OfflineCmdServiceHelper
 import com.nova.brain.glass.model.RecognizeParams
 import com.nova.brain.glass.viewmodel.WelcomeVM
+import com.xuqm.base.extensions.showMessage
 import com.xuqm.base.ui.BaseActivity
 
 class WelcomeActivity : BaseActivity<ActivityWelcomeBinding>() {
@@ -51,11 +54,14 @@ class WelcomeActivity : BaseActivity<ActivityWelcomeBinding>() {
         vm = ViewModelProvider(this)[WelcomeVM::class.java]
         window.addFlags(android.view.WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
         binding.tv.setOnClickListener {
-            startActivity(Intent(this, TaskListActivity::class.java))
+            runWithNetwork {
+                startActivity(Intent(this, TaskListActivity::class.java))
+            }
         }
     }
 
     private fun triggerRecognize() {
+        if (!ensureNetworkAvailable()) return
         startDotsAnim()
         IntentRecognizeHelper.recognize(
             text = "查看我的任务列表？",
@@ -85,7 +91,9 @@ class WelcomeActivity : BaseActivity<ActivityWelcomeBinding>() {
             runOnUiThread {
                 when (cmd) {
                     "任务列表", "查看任务", "查看任务列表" -> {
-                        startActivity(Intent(this@WelcomeActivity, TaskListActivity::class.java))
+                        runWithNetwork {
+                            startActivity(Intent(this@WelcomeActivity, TaskListActivity::class.java))
+                        }
                     }
                 }
             }
@@ -96,16 +104,21 @@ class WelcomeActivity : BaseActivity<ActivityWelcomeBinding>() {
         super.onResume()
         OfflineCmdServiceHelper.addOnLineListener(offlineCmdListener)
         OfflineCmdServiceHelper.addListenerWelcome()
+        ensureNetworkAvailable()
         stopDotsAnim()  // 从 ChatActivity 返回时恢复原文
         AsrHelper.scene = "home"
         AsrHelper.onGoToDecisionCenter = { action ->
-            startActivity(
-                Intent(this, ChatActivity::class.java)
-                    .putExtra("question", action.params.question)
-            )
+            runWithNetwork {
+                startActivity(
+                    Intent(this, ChatActivity::class.java)
+                        .putExtra("question", action.params.question)
+                )
+            }
         }
         AsrHelper.onGoToTaskCenter = { action ->
-            startActivity(intentForTaskList(action.params))
+            runWithNetwork {
+                startActivity(intentForTaskList(action.params))
+            }
         }
     }
 
@@ -133,4 +146,24 @@ class WelcomeActivity : BaseActivity<ActivityWelcomeBinding>() {
         super.onDestroy()
         window.clearFlags(android.view.WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
     }
+
+    private fun runWithNetwork(action: () -> Unit) {
+        if (ensureNetworkAvailable()) {
+            action()
+        }
+    }
+
+    private fun ensureNetworkAvailable(): Boolean {
+        if (isNetworkAvailable()) return true
+        "当前无网络，请检查网络连接".showMessage()
+        return false
+    }
+
+    private fun isNetworkAvailable(): Boolean {
+        val connectivityManager =
+            getSystemService(ConnectivityManager::class.java) ?: return false
+        val network = connectivityManager.activeNetwork ?: return false
+        val capabilities = connectivityManager.getNetworkCapabilities(network) ?: return false
+        return capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
+    }
 }