diff --git a/WebRTCController/app/src/main/java/com/tt/controller/MainActivity.java b/WebRTCController/app/src/main/java/com/tt/controller/MainActivity.java
index 6125566..68886ce 100644
--- a/WebRTCController/app/src/main/java/com/tt/controller/MainActivity.java
+++ b/WebRTCController/app/src/main/java/com/tt/controller/MainActivity.java
@@ -91,7 +91,18 @@ public class MainActivity extends AppCompatActivity {
 
         // 初始化 EGL 和远端视频渲染
         eglBase = EglBase.create();
-        remoteVideoView.init(eglBase.getEglBaseContext(), null);
+        remoteVideoView.init(eglBase.getEglBaseContext(), new RendererCommon.RendererEvents() {
+            @Override
+            public void onFirstFrameRendered() {
+                Log.d(TAG, "First frame rendered");
+            }
+
+            @Override
+            public void onFrameResolutionChanged(int videoWidth, int videoHeight, int rotation) {
+                Log.d(TAG, "Video resolution changed: " + videoWidth + "x" + videoHeight + " rotation: " + rotation);
+                adjustVideoSize(videoWidth, videoHeight, rotation);
+            }
+        });
         remoteVideoView.setScalingType(RendererCommon.ScalingType.SCALE_ASPECT_FIT);
         remoteVideoView.setEnableHardwareScaler(true);
         remoteVideoView.setZOrderMediaOverlay(true);
@@ -112,6 +123,56 @@ public class MainActivity extends AppCompatActivity {
         updateUI(false);
     }
 
+    private void adjustVideoSize(int videoWidth, int videoHeight, int rotation) {
+        runOnUiThread(() -> {
+            if (videoWidth == 0 || videoHeight == 0) return;
+
+            int containerWidth = controlPanel.getWidth();
+            int containerHeight = controlPanel.getHeight();
+
+            if (containerWidth == 0 || containerHeight == 0) {
+                // 如果容器还没测量好，稍后再试
+                controlPanel.postDelayed(() -> adjustVideoSize(videoWidth, videoHeight, rotation), 100);
+                return;
+            }
+
+            float videoAspectRatio;
+            if (rotation == 90 || rotation == 270) {
+                videoAspectRatio = (float) videoHeight / videoWidth;
+            } else {
+                videoAspectRatio = (float) videoWidth / videoHeight;
+            }
+
+            float containerAspectRatio = (float) containerWidth / containerHeight;
+
+            int newWidth, newHeight;
+            if (videoAspectRatio > containerAspectRatio) {
+                // 视频更宽，以容器宽度为准
+                newWidth = containerWidth;
+                newHeight = (int) (containerWidth / videoAspectRatio);
+            } else {
+                // 视频更高，以容器高度为准
+                newWidth = (int) (containerHeight * videoAspectRatio);
+                newHeight = containerHeight;
+            }
+
+            // 更新视频渲染视图大小
+            FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) remoteVideoView.getLayoutParams();
+            lp.width = newWidth;
+            lp.height = newHeight;
+            remoteVideoView.setLayoutParams(lp);
+
+            // 更新触摸层大小，使其与视频区域完全重合
+            FrameLayout.LayoutParams overlayLp = (FrameLayout.LayoutParams) touchOverlay.getLayoutParams();
+            overlayLp.width = newWidth;
+            overlayLp.height = newHeight;
+            touchOverlay.setLayoutParams(overlayLp);
+
+            Log.d(TAG, String.format("Adjusted video view size: %dx%d (video: %dx%d, rotation: %d, container: %dx%d)",
+                    newWidth, newHeight, videoWidth, videoHeight, rotation, containerWidth, containerHeight));
+        });
+    }
+
     private void connectToControlled() {
         String serverUrl = etServerUrl.getText().toString().trim();
         targetDeviceId = etTargetDeviceId.getText().toString().trim();
diff --git a/WebRTCController/app/src/main/res/layout/activity_main.xml b/WebRTCController/app/src/main/res/layout/activity_main.xml
index fbb44b8..2d7f2de 100644
--- a/WebRTCController/app/src/main/res/layout/activity_main.xml
+++ b/WebRTCController/app/src/main/res/layout/activity_main.xml
@@ -91,6 +91,7 @@
     <!-- 控制面板（连接后显示） -->
     <FrameLayout
         android:id="@+id/control_panel"
+        android:background="#000000"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:visibility="gone">
@@ -99,13 +100,15 @@
         <org.webrtc.SurfaceViewRenderer
             android:id="@+id/remote_video_view"
             android:layout_width="match_parent"
-            android:layout_height="match_parent" />
+            android:layout_height="match_parent"
+            android:layout_gravity="center" />
 
         <!-- 触摸控制层（覆盖在视频上方） -->
         <com.tt.controller.view.RemoteTouchView
             android:id="@+id/touch_overlay"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
+            android:layout_gravity="center"
             android:background="@android:color/transparent" />
 
         <!-- 顶部状态栏 -->