[BGF] remove unused reference.

(cherry picked from commit 1a3272a)

Author: oOJohn6Oo

Android/APIExample/app/src/main/java/io/agora/api/example/examples/advanced/SwitchExternalVideo.java

@@ -422,26 +422,26 @@ public void onJoinChannelSuccess(String channel, int uid, int elapsed) {
         public void onRemoteVideoStateChanged(int uid, int state, int reason, int elapsed) {
             super.onRemoteVideoStateChanged(uid, state, reason, elapsed);
             Log.i(TAG, "onRemoteVideoStateChanged:uid->" + uid + ", state->" + state);
-            if (state == REMOTE_VIDEO_STATE_STARTING) {
-                /**Check if the context is correct*/
-                Context context = getContext();
-                if (context == null) {
-                    return;
-                }
-                handler.post(() ->
-                {
-                    /**Display remote video stream*/
-                    SurfaceView surfaceView = RtcEngine.CreateRendererView(context);
-                    surfaceView.setZOrderMediaOverlay(true);
-                    if (fl_remote.getChildCount() > 0) {
-                        fl_remote.removeAllViews();
-                    }
-                    fl_remote.addView(surfaceView, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
-                            ViewGroup.LayoutParams.MATCH_PARENT));
-                    /**Setup remote video to render*/
-                    ENGINE.setupRemoteVideo(new VideoCanvas(surfaceView, RENDER_MODE_HIDDEN, uid));
-                });
-            }
+//            if (state == REMOTE_VIDEO_STATE_STARTING) {
+//                /**Check if the context is correct*/
+//                Context context = getContext();
+//                if (context == null) {
+//                    return;
+//                }
+//                handler.post(() ->
+//                {
+//                    /**Display remote video stream*/
+//                    SurfaceView surfaceView = RtcEngine.CreateRendererView(context);
+//                    surfaceView.setZOrderMediaOverlay(true);
+//                    if (fl_remote.getChildCount() > 0) {
+//                        fl_remote.removeAllViews();
+//                    }
+//                    fl_remote.addView(surfaceView, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
+//                            ViewGroup.LayoutParams.MATCH_PARENT));
+//                    /**Setup remote video to render*/
+//                    ENGINE.setupRemoteVideo(new VideoCanvas(surfaceView, RENDER_MODE_HIDDEN, uid));
+//                });
+//            }
         }
 
         /**Occurs when a remote user (Communication)/host (Live Broadcast) joins the channel.
@@ -468,17 +468,17 @@ public void onUserJoined(int uid, int elapsed) {
         @Override
         public void onUserOffline(int uid, int reason) {
             Log.i(TAG, String.format("user %d offline! reason:%d", uid, reason));
-            showLongToast(String.format("user %d offline! reason:%d", uid, reason));
-            handler.post(new Runnable() {
-                @Override
-                public void run() {
-                    /**Clear render view
-                     Note: The video will stay at its last frame, to completely remove it you will need to
-                     remove the SurfaceView from its parent*/
-                    ENGINE.setupRemoteVideo(new VideoCanvas(null, RENDER_MODE_HIDDEN, uid));
-                    fl_remote.removeAllViews();
-                }
-            });
+//            showLongToast(String.format("user %d offline! reason:%d", uid, reason));
+//            handler.post(new Runnable() {
+//                @Override
+//                public void run() {
+//                    /**Clear render view
+//                     Note: The video will stay at its last frame, to completely remove it you will need to
+//                     remove the SurfaceView from its parent*/
+//                    ENGINE.setupRemoteVideo(new VideoCanvas(null, RENDER_MODE_HIDDEN, uid));
+//                    fl_remote.removeAllViews();
+//                }
+//            });
         }
     };