diff --git a/doric-Qt/example/doric/DoricContextManager.h b/doric-Qt/example/doric/DoricContextManager.h
index 13a773b2..59215a60 100644
--- a/doric-Qt/example/doric/DoricContextManager.h
+++ b/doric-Qt/example/doric/DoricContextManager.h
@@ -10,9 +10,9 @@
 class DORIC_EXPORT DoricContextManager {
 private:
   static DoricContextManager *local_instance;
-  DoricContextManager() {}
+  DoricContextManager() { qDebug() << "DoricContextManager constructor"; }
 
-  ~DoricContextManager() {}
+  ~DoricContextManager() { qDebug() << "DoricContextManager destructor"; }
 
   QAtomicInt *counter = new QAtomicInt();
   QMap<QString, DoricContext *> *contextMap =
diff --git a/doric-Qt/example/doric/DoricNativeDriver.h b/doric-Qt/example/doric/DoricNativeDriver.h
index 7dfd8e3b..1bae79f6 100644
--- a/doric-Qt/example/doric/DoricNativeDriver.h
+++ b/doric-Qt/example/doric/DoricNativeDriver.h
@@ -11,9 +11,9 @@
 class DORIC_EXPORT DoricNativeDriver : public DoricInterfaceDriver {
 private:
   static DoricNativeDriver *local_instance;
-  DoricNativeDriver() {}
+  DoricNativeDriver() { qDebug() << "DoricNativeDriver constructor"; }
 
-  ~DoricNativeDriver() {}
+  ~DoricNativeDriver() { qDebug() << "DoricNativeDriver destructor"; }
 
   DoricJSEngine jsEngine;
 
diff --git a/doric-Qt/example/doric/DoricRegistry.cpp b/doric-Qt/example/doric/DoricRegistry.cpp
index dba380e3..10ae6dfa 100644
--- a/doric-Qt/example/doric/DoricRegistry.cpp
+++ b/doric-Qt/example/doric/DoricRegistry.cpp
@@ -22,6 +22,8 @@
 #include "shader/slider/DoricSliderNode.h"
 
 DoricRegistry::DoricRegistry() {
+  qDebug() << "DoricRegistry constructor";
+
   registerNativePlugin<DoricShaderPlugin>("shader");
   registerNativePlugin<DoricModalPlugin>("modal");
   registerNativePlugin<DoricPopoverPlugin>("popover");
diff --git a/doric-Qt/example/doric/DoricRegistry.h b/doric-Qt/example/doric/DoricRegistry.h
index 067844f0..ff143e28 100644
--- a/doric-Qt/example/doric/DoricRegistry.h
+++ b/doric-Qt/example/doric/DoricRegistry.h
@@ -14,7 +14,7 @@ class DORIC_EXPORT DoricRegistry {
 private:
   static DoricRegistry *local_instance;
 
-  ~DoricRegistry() { qDebug() << "destructor"; }
+  ~DoricRegistry() { qDebug() << "DoricRegistry destructor"; }
 
 public:
   static DoricRegistry *getInstance() {
diff --git a/doric-Qt/example/doric/doric.pro b/doric-Qt/example/doric/doric.pro
index c3d7babf..c85cd41b 100644
--- a/doric-Qt/example/doric/doric.pro
+++ b/doric-Qt/example/doric/doric.pro
@@ -62,6 +62,7 @@ SOURCES += \
         utils/DoricContextHolder.cpp \
         utils/DoricDialogBridge.cpp \
         utils/DoricDraggableBridge.cpp \
+        utils/DoricGlobalBroadcast.cpp \
         utils/DoricImageBridge.cpp \
         utils/DoricInputBridge.cpp \
         utils/DoricLayouts.cpp \
@@ -151,6 +152,7 @@ HEADERS += \
     utils/DoricCountDownLatch.h \
     utils/DoricDialogBridge.h \
     utils/DoricDraggableBridge.h \
+    utils/DoricGlobalBroadcast.h \
     utils/DoricImageBridge.h \
     utils/DoricInputBridge.h \
     utils/DoricLayouts.h \
diff --git a/doric-Qt/example/doric/utils/DoricGlobalBroadcast.cpp b/doric-Qt/example/doric/utils/DoricGlobalBroadcast.cpp
new file mode 100644
index 00000000..a195cb7e
--- /dev/null
+++ b/doric-Qt/example/doric/utils/DoricGlobalBroadcast.cpp
@@ -0,0 +1 @@
+#include "DoricGlobalBroadcast.h"
diff --git a/doric-Qt/example/doric/utils/DoricGlobalBroadcast.h b/doric-Qt/example/doric/utils/DoricGlobalBroadcast.h
new file mode 100644
index 00000000..e3128aad
--- /dev/null
+++ b/doric-Qt/example/doric/utils/DoricGlobalBroadcast.h
@@ -0,0 +1,20 @@
+#ifndef DORICGLOBALBROADCAST_H
+#define DORICGLOBALBROADCAST_H
+
+#include <QDebug>
+
+class DoricGlobalBroadcast {
+private:
+  static DoricGlobalBroadcast *local_instance;
+  DoricGlobalBroadcast() { qDebug() << "DoricGlobalBroadcast constructor"; }
+
+  ~DoricGlobalBroadcast() { qDebug() << "DoricGlobalBroadcast destructor"; }
+
+public:
+  static DoricGlobalBroadcast *getInstance() {
+    static DoricGlobalBroadcast instance;
+    return &instance;
+  }
+};
+
+#endif // DORICGLOBALBROADCAST_H
diff --git a/doric-Qt/example/doric/utils/DoricNetworkService.h b/doric-Qt/example/doric/utils/DoricNetworkService.h
index eab945b9..df632336 100644
--- a/doric-Qt/example/doric/utils/DoricNetworkService.h
+++ b/doric-Qt/example/doric/utils/DoricNetworkService.h
@@ -70,11 +70,11 @@ private:
 
   static DoricNetworkService *local_instance;
   DoricNetworkService() {
-    qDebug() << "constructor";
+    qDebug() << "DoricNetworkService constructor";
     thread.start();
   }
 
-  ~DoricNetworkService() { qDebug() << "destructor"; }
+  ~DoricNetworkService() { qDebug() << "DoricNetworkService destructor"; }
 
 public:
   static DoricNetworkService *getInstance() {