diff --git a/src/appdata/app-data-manager.cpp b/src/appdata/app-data-manager.cpp
index ac763b4..e1d2c98 100644
--- a/src/appdata/app-data-manager.cpp
+++ b/src/appdata/app-data-manager.cpp
@@ -146,6 +146,9 @@ void AppDataWorker::onAppAdded(const QStringList &infos)
 
     QList<DataEntity> apps;
     appendApps(infos, apps);
+    if (apps.isEmpty()) {
+        return;
+    }
     Q_EMIT appAdded(apps);
 
     updateFavoriteApps();
@@ -188,6 +191,9 @@ void AppDataWorker::onAppUpdated(const UkuiSearch::ApplicationInfoMap &infos)
 
     QList<DataEntity> apps;
     updateApps(infos, apps);
+    if (apps.isEmpty()) {
+        return;
+    }
     Q_EMIT appUpdated(apps);
 
     updateFavoriteApps();
@@ -201,6 +207,9 @@ void AppDataWorker::onAppUpdatedAll(const QStringList &infos)
 
     QList<DataEntity> apps;
     updateAppsAll(infos, apps);
+    if (apps.isEmpty()) {
+        return;
+    }
     Q_EMIT appUpdated(apps);
 
     updateFavoriteApps();
@@ -281,6 +290,9 @@ void AppDataWorker::onAppDeleted(QStringList infos)
     }
     QStringList removedIdList;
     removeApps(infos, removedIdList);
+    if (removedIdList.isEmpty()) {
+        return;
+    }
     Q_EMIT appDeleted(removedIdList);
 
     updateFavoriteApps();