feat: phase1 UI prep — 设备ID系统传递 + 国家本地化展示 + 继续观看直进播放页

设备标识: Android SSAID/ iOS IDFV 原生通道 → Dart DeviceIdProvider
国家解析: 注册/登录从后端 IP → 国家/语言/时区/币种 自动落库
账号资料: 全部本地化展示 (account_display.dart)
我的页: 继续观看卡片点击直接进播放页

android/app/src/main/kotlin/com/stormg/lumadrama/MainActivity.kt

@@ -4,6 +4,7 @@ package com.stormg.lumadrama
 
 import android.content.Intent
 import android.app.PictureInPictureParams
+import android.content.Context
 import android.content.res.Configuration
 import android.graphics.Bitmap
 import android.media.MediaMetadataRetriever
@@ -13,6 +14,7 @@ import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
 import android.provider.Settings
+import android.telephony.TelephonyManager
 import android.util.Rational
 import android.content.pm.PackageManager
 import android.view.WindowManager
@@ -22,6 +24,7 @@ import io.flutter.embedding.android.FlutterActivity
 import io.flutter.embedding.engine.FlutterEngine
 import io.flutter.plugin.common.MethodChannel
 import java.io.ByteArrayOutputStream
+import java.util.Locale
 import java.util.concurrent.ExecutorService
 import java.util.concurrent.Executors
 import java.util.concurrent.atomic.AtomicBoolean
@@ -69,16 +72,19 @@ class MainActivity : FlutterActivity() {
         // 设备标识：SSAID 免权限，卸载重装不变，避免客户端自己生成的 id 每次重装都变
         MethodChannel(flutterEngine.dartExecutor.binaryMessenger, "com.stormg.lumadrama/device")
             .setMethodCallHandler { call, result ->
-                if (call.method != "ssaid") {
-                    result.notImplemented()
-                    return@setMethodCallHandler
+                when (call.method) {
+                    "ssaid" -> {
+                        val value = try {
+                            Settings.Secure.getString(contentResolver, Settings.Secure.ANDROID_ID)
+                        } catch (_: Exception) {
+                            null
+                        }
+                        result.success(value)
+                    }
+                    // 设备区域：注册时作为服务端 IP 解析失败后的兜底
+                    "region" -> result.success(currentRegion())
+                    else -> result.notImplemented()
                 }
-                val value = try {
-                    Settings.Secure.getString(contentResolver, Settings.Secure.ANDROID_ID)
-                } catch (_: Exception) {
-                    null
-                }
-                result.success(value)
             }
         MethodChannel(flutterEngine.dartExecutor.binaryMessenger, "com.stormg.lumadrama/share")
             .setMethodCallHandler { call, result ->
@@ -171,6 +177,28 @@ class MainActivity : FlutterActivity() {
             ?.bottom
             ?: 0
 
+    /** 网络运营商国家优先，其次 SIM 卡，最后系统语言；都拿不到返回空串。 */
+    private fun currentRegion(): String {
+        return try {
+            val telephony = getSystemService(Context.TELEPHONY_SERVICE) as? TelephonyManager
+            val localeCountry = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                resources.configuration.locales.get(0).country
+            } else {
+                @Suppress("DEPRECATION")
+                resources.configuration.locale.country
+            }
+            val candidates = listOfNotNull(
+                telephony?.networkCountryIso,
+                telephony?.simCountryIso,
+                localeCountry
+            )
+            candidates.firstOrNull { it.isNotBlank() }?.uppercase(Locale.ROOT) ?: ""
+        } catch (_: Exception) {
+            // 个别 ROM 读运营商信息会抛 SecurityException，别让注册流程卡住
+            ""
+        }
+    }
+
     private fun emitImeInset(value: Int) {
         if (value == imeInset) return
         imeInset = value