缓存上次加入的群组

app/src/main/java/com/stand/standapp/AndroidInterface.kt

@@ -195,6 +195,9 @@ class AndroidInterface(private val activity: MainActivity) {
     fun pttJumpGroup(gid: String) {
         Timber.tag("PTT").d("pttJumpGroup: gid=%s", gid)
         SendAtUtil.jumpGroup(gid)
+        if (gid.isNotEmpty()) {
+            AppConfig.setLastGroupId(activity, gid)
+        }
     }
 
     fun getPrinterStatus(): String {

app/src/main/java/com/stand/standapp/AppConfig.kt

@@ -11,6 +11,7 @@ object AppConfig {
     private const val KEY_USERNAME = "saved_username"
     private const val KEY_PASSWORD = "saved_password"
     private const val KEY_ACCESS_TOKEN = "access_token"
+    private const val KEY_LAST_GROUP_ID = "last_group_id"
     
     // 默认配置
     const val DEFAULT_SERVER_URL = "https://template.gyouzhe.com"
@@ -77,4 +78,12 @@ object AppConfig {
     fun setAccessToken(context: Context, token: String) {
         getPrefs(context).edit().putString(KEY_ACCESS_TOKEN, token).apply()
     }
+
+    fun getLastGroupId(context: Context): String {
+        return getPrefs(context).getString(KEY_LAST_GROUP_ID, "") ?: ""
+    }
+
+    fun setLastGroupId(context: Context, groupId: String) {
+        getPrefs(context).edit().putString(KEY_LAST_GROUP_ID, groupId).apply()
+    }
 }

app/src/main/java/com/stand/standapp/MainActivity.kt

@@ -47,6 +47,18 @@ class MainActivity : AppCompatActivity() {
         fun onPttLoginSuccess() {
             Timber.tag("MainActivity").d("onPttLoginSuccess called from Native")
             executeJs("onPttLoginSuccess()")
+            
+            instance?.let { ctx ->
+                val lastGroupId = AppConfig.getLastGroupId(ctx)
+                if (lastGroupId.isNotEmpty()) {
+                    Timber.tag("PTT").d("Auto-jumping to last joined group: %s after delay", lastGroupId)
+                    ctx.runOnUiThread {
+                        android.os.Handler(android.os.Looper.getMainLooper()).postDelayed({
+                            instance?.pttInterface?.pttJumpGroup(lastGroupId)
+                        }, 2000)
+                    }
+                }
+            }
         }
 
         // 硬件按键触发