diff --git a/libsearch/file-utils.cpp b/libsearch/file-utils.cpp
index 5e03d2d..2f0864d 100644
--- a/libsearch/file-utils.cpp
+++ b/libsearch/file-utils.cpp
@@ -12,6 +12,7 @@
 #include <QQueue>
 size_t FileUtils::_max_index_count = 0;
 size_t FileUtils::_current_index_count = 0;
+unsigned short FileUtils::_index_status = INITIAL_STATE;
 QMap<QString, QStringList> FileUtils::map_chinese2pinyin = QMap<QString, QStringList>();
 
 FileUtils::FileUtils()
diff --git a/libsearch/file-utils.h b/libsearch/file-utils.h
index 3e8b19f..2c6e692 100644
--- a/libsearch/file-utils.h
+++ b/libsearch/file-utils.h
@@ -6,6 +6,9 @@
 #include <QIcon>
 #include <QMap>
 #include "libsearch_global.h"
+#define INITIAL_STATE 0
+#define CREATING_INDEX 1
+#define FINISH_CREATING_INDEX 2
 
 class  LIBSEARCH_EXPORT FileUtils
 {
@@ -31,6 +34,7 @@ public:
     static void getTxtContent(QString &path, QString &textcontent);
     static size_t _max_index_count;
     static size_t _current_index_count;
+    static unsigned short _index_status;
 
 private:
     FileUtils();
diff --git a/libsearch/index/index-generator.cpp b/libsearch/index/index-generator.cpp
index 366f3b7..3dc3c39 100644
--- a/libsearch/index/index-generator.cpp
+++ b/libsearch/index/index-generator.cpp
@@ -75,6 +75,7 @@ bool IndexGenerator::creatAllIndex(QQueue<QVector<QString> > *messageList)
 //文件内容索引
 bool IndexGenerator::creatAllIndex(QQueue<QString> *messageList)
 {
+    FileUtils::_index_status = CREATING_INDEX;
     HandlePathList(messageList);
     try
     {
@@ -99,6 +100,7 @@ bool IndexGenerator::creatAllIndex(QQueue<QString> *messageList)
     }
     m_doc_list_content->clear();
     Q_EMIT this->transactionFinished();
+    FileUtils::_index_status = FINISH_CREATING_INDEX;
     return true;
 
 }
@@ -359,7 +361,9 @@ bool IndexGenerator::deleteAllIndex(QStringList *pathlist)
             qDebug()<<"delete path"<<doc;
             qDebug()<<"delete md5"<<QString::fromStdString(uniqueterm);
             m_datebase_path->commit();
-            FileUtils::_current_index_count -= 1;
+
+            FileUtils::_current_index_count = m_datebase_path->get_doccount();
+
             qDebug()<< "--delete finish--";
         }
         catch(const Xapian::Error &e)
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 9fa7359..864d480 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -99,6 +99,20 @@ MainWindow::MainWindow(QWidget *parent) :
     connect(m_search_result_thread, &SearchResult::searchResultContent, this, [ = ](QPair<QString, QStringList> pair) {
         m_contentFrame->appendSearchItem(SearchItem::SearchType::Contents, pair.first, m_searchLayout->text(), pair.second);
     });
+
+    m_sys_tray_icon = new QSystemTrayIcon(this);
+    m_sys_tray_icon->setIcon(QIcon::fromTheme("system-search-symbolic"));
+    m_sys_tray_icon->setToolTip(tr("Global Search"));
+    m_sys_tray_icon->show();
+    connect(m_sys_tray_icon,&QSystemTrayIcon::activated,this,[=](QSystemTrayIcon::ActivationReason reason){
+        if(reason == QSystemTrayIcon::Trigger)
+        {
+            clearSearchResult();
+            this->show();
+            this->raise();
+            this->activateWindow();
+        }
+    });
 }
 
 MainWindow::~MainWindow()
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 38d0d6c..cb3519f 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -37,6 +37,7 @@
 #include <QFrame>
 #include <QPushButton>
 #include <QGSettings/QGSettings>
+#include <QSystemTrayIcon>
 #include "content-widget.h"
 #include "input-box.h"
 #include "index/index-generator.h"
@@ -90,6 +91,7 @@ private:
     SearchResult * m_search_result_thread = nullptr;
 
     FileSearcher* m_searcher = nullptr;
+    QSystemTrayIcon *m_sys_tray_icon;
 
 protected:
     void paintEvent(QPaintEvent *);
diff --git a/src/search-result.cpp b/src/search-result.cpp
index 13f6170..36431c4 100644
--- a/src/search-result.cpp
+++ b/src/search-result.cpp
@@ -43,7 +43,7 @@ void SearchResult::run()
             m_mainwindow->m_searcher->m_mutex2.unlock();
         }
         m_mainwindow->m_searcher->m_mutex3.lock();
-        if (!m_mainwindow->m_search_result_content->isEmpty())
+//        if (!m_mainwindow->m_search_result_content->isEmpty())
 //            qDebug() << m_mainwindow->m_search_result_content->head();
         if (!m_mainwindow->m_search_result_content->isEmpty()) {
             Q_EMIT this->searchResultContent(m_mainwindow->m_search_result_content->dequeue());