diff --git a/android/src/main/kotlin/com/funymee/client_proxy_framework/ClientProxyFrameworkPlugin.kt b/android/src/main/kotlin/com/funymee/client_proxy_framework/ClientProxyFrameworkPlugin.kt
index 420bf2e..ae4ff14 100644
--- a/android/src/main/kotlin/com/funymee/client_proxy_framework/ClientProxyFrameworkPlugin.kt
+++ b/android/src/main/kotlin/com/funymee/client_proxy_framework/ClientProxyFrameworkPlugin.kt
@@ -1,14 +1,15 @@
 package com.funymee.client_proxy_framework
 
 import android.app.ActivityManager
-import android.app.Application
 import android.content.Context
-import com.facebook.appevents.AppEventsLogger
+import android.os.Handler
+import android.os.Looper
+import com.facebook.FacebookSdk
 import io.flutter.embedding.engine.plugins.FlutterPlugin
 import io.flutter.plugin.common.MethodCall
 import io.flutter.plugin.common.MethodChannel
 
-/** Facebook App Events：在引擎侧注册固定 Channel，供 Dart 触发 activateApp。 */
+/** Facebook App Events：在引擎侧注册固定 Channel；等 [FacebookSdk] 初始化完成后再通知 Dart（勿在就绪前调用 AppEventsLogger.activateApp）。 */
 class ClientProxyFrameworkPlugin : FlutterPlugin, MethodChannel.MethodCallHandler {
     private var channel: MethodChannel? = null
     private var deviceMemoryChannel: MethodChannel? = null
@@ -54,16 +55,33 @@ class ClientProxyFrameworkPlugin : FlutterPlugin, MethodChannel.MethodCallHandle
     override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
         when (call.method) {
             "waitForFacebookSdkInit" -> {
+                val ctx = applicationContext
+                if (ctx == null) {
+                    result.error("NO_CONTEXT", "applicationContext null", null)
+                    return
+                }
+                val mainHandler = Handler(Looper.getMainLooper())
                 try {
-                    val ctx = applicationContext
-                    val app = ctx?.applicationContext as? Application
-                    if (app != null) {
-                        AppEventsLogger.activateApp(app)
-                    }
-                    result.success(true)
-                    channel?.invokeMethod("onFacebookSdkInitialized", null)
+                    // SDK 18 无 addInitializedCallback；用 sdkInitialize(..., InitializeCallback) 在就绪后回调
+                    //（已初始化时会立即回调）。勿在此处调用 AppEventsLogger.activateApp。
+                    @Suppress("DEPRECATION")
+                    FacebookSdk.sdkInitialize(
+                        ctx.applicationContext,
+                        object : FacebookSdk.InitializeCallback {
+                            override fun onInitialized() {
+                                mainHandler.post {
+                                    try {
+                                        channel?.invokeMethod("onFacebookSdkInitialized", null)
+                                        result.success(true)
+                                    } catch (e: Exception) {
+                                        result.error("FB_SDK_READY", e.message, null)
+                                    }
+                                }
+                            }
+                        },
+                    )
                 } catch (e: Exception) {
-                    result.error("FB_ACTIVATE_APP", e.message, null)
+                    result.error("FB_SDK_READY", e.message, null)
                 }
             }
             else -> result.notImplemented()