diff --git a/lib_fiber/samples-gui/QtFiber/childwindows.cpp b/lib_fiber/samples-gui/QtFiber/childwindows.cpp
deleted file mode 100644
index ec44ee877..000000000
--- a/lib_fiber/samples-gui/QtFiber/childwindows.cpp
+++ /dev/null
@@ -1,31 +0,0 @@
-#include "stdafx.h"
-#include <QVBoxLayout>
-#include <QDebug>
-#include "childwindows.h"
-
-ChildWindows::ChildWindows(QWidget *parent)
-: QWidget(parent)
-{
-    setWindowTitle("The child window");
-
-    QVBoxLayout *layout = new QVBoxLayout(this);
-    closeButton = new QPushButton("Close", this);
-    layout->addWidget(closeButton);
-
-    closeButton = new QPushButton("Close", this);
-    closeButton->setGeometry(QRect(QPoint(50, 50), QSize(100, 30)));
-    connect(closeButton, &QPushButton::clicked, this, &ChildWindows::onCloseButtonClicked);
-
-    setFixedSize(300, 200);
-}
-
-void ChildWindows::onCloseButtonClicked()
-{
-    this->close();
-}
-
-void ChildWindows::showEvent(QShowEvent *event)
-{
-    QWidget::showEvent(event);
-    qDebug() << "Second window is shown";
-}
diff --git a/lib_fiber/samples-gui/QtFiber/childwindows.h b/lib_fiber/samples-gui/QtFiber/childwindows.h
deleted file mode 100644
index f4aac632a..000000000
--- a/lib_fiber/samples-gui/QtFiber/childwindows.h
+++ /dev/null
@@ -1,24 +0,0 @@
-#ifndef CHILDWINDOWS_H
-#define CHILDWINDOWS_H
-
-#include <QWidget>
-#include <QPushButton>
-
-class ChildWindows : public QWidget
-{
-    Q_OBJECT
-public:
-    explicit ChildWindows(QWidget *parent = nullptr);
-    ~ChildWindows() = default;
-
-protected:
-    void showEvent(QShowEvent *event) override;
-
-private slots:
-    void onCloseButtonClicked();
-
-private:
-    QPushButton *closeButton;
-};
-
-#endif // CHILDWINDOWS_H
diff --git a/lib_fiber/samples-gui/QtFiber/fiber_client.cpp b/lib_fiber/samples-gui/QtFiber/fiber_client.cpp
index 753a8ce78..3a78ecca7 100644
--- a/lib_fiber/samples-gui/QtFiber/fiber_client.cpp
+++ b/lib_fiber/samples-gui/QtFiber/fiber_client.cpp
@@ -1,9 +1,10 @@
 #include "stdafx.h"
 #include "patch.h"
+#include "mainwindow.h"
 #include "fiber_client.h"
 
-fiber_client::fiber_client(const char *ip, int port, size_t max, int delay)
-: ip_(ip), port_(port), max_(max), delay_(delay)
+fiber_client::fiber_client(MainWindow *parent, const char *ip, int port, size_t max, int delay)
+: parent_(parent), ip_(ip), port_(port), max_(max), delay_(delay)
 {
 }
 
@@ -22,6 +23,8 @@ void fiber_client::run() {
     char buf[4096];
     std::string s("hello world!");
 
+    parent_->setProgress(0);
+
     for (size_t i = 0; i < max_; i++) {
         int ret = acl_fiber_send(conn, s.c_str(), (int) s.size(), 0);
         if (ret <= 0) {
@@ -40,11 +43,14 @@ void fiber_client::run() {
             qDebug() << "Fiber-" << acl::fiber::self() << " recv: " << buf;
         }
 
-        if (delay_ > 0) {
+        parent_->setProgress((100 * i) / max_);
+        if (i % 10 == 0 && delay_ > 0) {
             acl::fiber::delay(delay_);
         }
     }
 
+    parent_->setProgress(100);
+
     struct timeval end;
     gettimeofday(&end, nullptr);
 
diff --git a/lib_fiber/samples-gui/QtFiber/fiber_client.h b/lib_fiber/samples-gui/QtFiber/fiber_client.h
index 3635c0946..6b1e96029 100644
--- a/lib_fiber/samples-gui/QtFiber/fiber_client.h
+++ b/lib_fiber/samples-gui/QtFiber/fiber_client.h
@@ -1,15 +1,18 @@
 #ifndef FIBER_CLIENT_H
 #define FIBER_CLIENT_H
 
+class MainWindow;
+
 class fiber_client : public acl::fiber {
 public:
-    fiber_client(const char *ip, int port, size_t max = 100, int delay = 0);
+    fiber_client(MainWindow *parent, const char *ip, int port, size_t max = 100, int delay = 0);
 
 protected:
     // @override
     void run() override;
 
 private:
+    MainWindow *parent_;
     std::string ip_;
     int port_;
     size_t max_;
diff --git a/lib_fiber/samples-gui/QtFiber/main.cpp b/lib_fiber/samples-gui/QtFiber/main.cpp
index cac162728..8e6aca982 100644
--- a/lib_fiber/samples-gui/QtFiber/main.cpp
+++ b/lib_fiber/samples-gui/QtFiber/main.cpp
@@ -43,7 +43,7 @@ static void app_run(int argc, char **argv)
     QApplication app(argc, argv);
 
     MainWindow w;
-    w.resize(800, 800);
+    //w.resize(1600, 800);
     w.show();
 
     QTimer::singleShot(0, startupCallback);
diff --git a/lib_fiber/samples-gui/QtFiber/mainwindow.cpp b/lib_fiber/samples-gui/QtFiber/mainwindow.cpp
index a5d714eba..d3ce040dc 100644
--- a/lib_fiber/samples-gui/QtFiber/mainwindow.cpp
+++ b/lib_fiber/samples-gui/QtFiber/mainwindow.cpp
@@ -5,7 +5,6 @@
 #include <QDebug>
 #include "mainwindow.h"
 #include "./ui_mainwindow.h"
-#include "childwindows.h"
 #include "inputdialog.h"
 #include "fiber_server.h"
 #include "fiber_client.h"
@@ -16,58 +15,74 @@ MainWindow::MainWindow(QWidget *parent)
     , process_(new QProcess(this))
 {
     ui_->setupUi(this);
-
-    button_ = new QPushButton("Open Dialog", this);
-    button_->setGeometry(QRect(QPoint(100, 100), QSize(300, 50)));
-    connect(button_, &QPushButton::clicked, this, &MainWindow::onButtonClicked);
-
-    start_server_ = new QPushButton("Start fiber server", this);
-    start_server_->setGeometry(QRect(QPoint(100, 150), QSize(300, 50)));
-    connect(start_server_, &QPushButton::clicked, this, &MainWindow::onStartServer);
-
-    stop_server_ = new QPushButton("Stop fiber server", this);
-    stop_server_->setGeometry(QRect(QPoint(100, 200), QSize(300, 50)));
-    connect(stop_server_, &QPushButton::clicked, this, &MainWindow::onStopServer);
-
-    start_client_ = new QPushButton("Start fiber client", this);
-    start_client_->setGeometry(QRect(QPoint(100, 250), QSize(300, 50)));
-    connect(start_client_, &QPushButton::clicked, this, &MainWindow::onStartClient);
-
-    url_get_ = new QPushButton("Http download", this);
-    url_get_->setGeometry(QRect(QPoint(100, 300), QSize(300, 50)));
-    connect(url_get_, &QPushButton::clicked, this, &MainWindow::onUrlGet);
-
-    start_schedule_ = new QPushButton("Start fiber schedule", this);
-    start_schedule_->setGeometry(QRect(QPoint(100, 350), QSize(300, 50)));
-    connect(start_schedule_, &QPushButton::clicked, this, &MainWindow::onStartSchedule);
-
-    stop_schedule_ = new QPushButton("Stop fiber schedule", this);
-    stop_schedule_->setGeometry(QRect(QPoint(100, 400), QSize(300, 50)));
-    connect(stop_schedule_, &QPushButton::clicked, this, &MainWindow::onStopSchedule);
-
-    open_child_ = new QPushButton("Open Child Window", this);
-    open_child_->setGeometry(QRect(QPoint(100, 450), QSize(300, 50)));
-    connect(open_child_, &QPushButton::clicked, this, &MainWindow::onOpenChildWindow);
-
-    input_button_= new QPushButton("Open dialog", this);
-    input_button_->setGeometry(100, 500, 300,50);
-    connect(input_button_, &QPushButton::clicked, this, &MainWindow::onInputClicked);
-
-    input_display_ = new QLabel("输入内容: ", this);
-    input_display_->setGeometry(100, 550, 200, 50);
+    stamp_ = new struct timeval;
+    gettimeofday(stamp_, nullptr);
+
+    connect(ui_->clear, &QPushButton::clicked, this, &MainWindow::onClear);
+    connect(ui_->startSchedule, &QPushButton::clicked, this, &MainWindow::onStartSchedule);
+    connect(ui_->stopSchedule, &QPushButton::clicked, this, &MainWindow::onStopSchedule);
+    connect(ui_->startServer, &QPushButton::clicked, this, &MainWindow::onStartServer);
+    connect(ui_->stopServer, &QPushButton::clicked, this, &MainWindow::onStopServer);
+    connect(ui_->startClient, &QPushButton::clicked, this, &MainWindow::onStartClient);
+    connect(ui_->urlGet, &QPushButton::clicked, this, &MainWindow::onUrlGet);
+
+    ui_->startSchedule->setEnabled(false);
+    ui_->stopServer->setEnabled(false);
+    ui_->startClient->setEnabled(false);
 }
 
 MainWindow::~MainWindow()
 {
     delete ui_;
+    delete stamp_;
     delete server_;
     qDebug() << "The main windows was destroied!";
 }
 
+void MainWindow::closeEvent(QCloseEvent *event)
+{
+#if 1
+    acl::fiber::schedule_stop(); // 停止协程调度器
+    event->accept();  // 接受关闭事件
+    return;
+#else
+    QMessageBox::StandardButton resBtn = QMessageBox::question(this, "Confirm Close",
+        tr("Are you sure you want to exit?\n"),
+        QMessageBox::No | QMessageBox::Yes,
+        QMessageBox::No);
+
+    if (resBtn == QMessageBox::Yes) {
+        acl::fiber::schedule_stop();
+        event->accept();  // 接受关闭事件
+    } else {
+        event->ignore();  // 忽略关闭事件
+    }
+#endif
+}
+
+void MainWindow::onClear()
+{
+    ui_->display->clear();
+}
+
+void MainWindow::setProgress(int n)
+{
+    if (n == 100) {
+        ui_->progress->setValue(100);
+    } else {
+        struct timeval now;
+        gettimeofday(&now, nullptr);
+        double tc = acl::stamp_sub(now, *stamp_);
+        if (tc >= 200) {
+            ui_->progress->setValue(n % 100);
+            gettimeofday(stamp_, nullptr);
+        }
+    }
+}
+
 void MainWindow::onAboutToQuit()
 {
     qDebug() << "onAboutToQuit called!";
-//    acl::fiber::schedule_stop();
 }
 
 void MainWindow::onButtonClicked()
@@ -87,6 +102,9 @@ void MainWindow::onStartServer()
         return;
     }
 
+    ui_->stopServer->setEnabled(true);
+    ui_->startClient->setEnabled(true);
+
     server_ = new fiber_server("127.0.0.1", 9001, this);
     qDebug() << "Start fiber server";
     server_->start();
@@ -99,6 +117,8 @@ void MainWindow::onStopServer()
         server_->stop();
         delete server_;
         server_ = nullptr;
+        ui_->stopServer->setEnabled(false);
+        ui_->startClient->setEnabled(false);
     }
 }
 
@@ -109,7 +129,8 @@ void MainWindow::onStartClient()
         return;
     }
 
-    acl::fiber *fb = new fiber_client("127.0.0.1", 9001, 10000, 0);
+    ui_->progress->setValue(0);
+    acl::fiber *fb = new fiber_client(this, "127.0.0.1", 9001, 10000, 1);
     qDebug() << "Start fiber client";
     fb->start();
     qDebug() << "Fiber client started!";
@@ -151,6 +172,7 @@ void MainWindow::onDownloadFinish(bool ok, const acl::http_request& req)
         client->sprint_header(buf);
         qDebug() << "Got response body ok!";
         qDebug() << buf.c_str();
+        ui_->display->setText(buf.c_str());
     } else {
         qDebug() << "Got response body error!";
     }
@@ -163,6 +185,9 @@ void MainWindow::onStartSchedule()
         return;
     }
 
+    ui_->stopSchedule->setEnabled(true);
+    ui_->urlGet->setEnabled(true);
+
     qDebug() << "Begin schedule_gui!";
     acl::fiber::schedule_gui();
     qDebug() << "schedule_gui end!";
@@ -176,34 +201,14 @@ void MainWindow::onStopSchedule()
         server_ = nullptr;
     }
 
+    ui_->urlGet->setEnabled(false);
+    ui_->stopSchedule->setEnabled(false);
+    ui_->startSchedule->setEnabled(true);
+
     acl::fiber::schedule_stop();
     qDebug() << "Fiber schedule stopped!";
 }
 
-void MainWindow::onOpenChildWindow()
-{
-    if (child_window_ == nullptr) {
-        child_window_ = new ChildWindows(this);
-    }
-
-    qDebug() << "Opening second window";
-
-    QScreen *screen = QApplication::primaryScreen();
-    if (screen) {
-        QRect screenGeometry = screen->geometry();
-        int x = (screenGeometry.width() - child_window_->width()) / 2;
-        int y = (screenGeometry.height() - child_window_->height()) / 2;
-        child_window_->move(x, y);
-    }
-
-    child_window_->show();
-    child_window_->raise();
-    child_window_->activateWindow();
-    qDebug() << "Second window visibility:" << child_window_->isVisible();
-    qDebug() << "Second window isMinimized:" << child_window_->isMinimized();
-    qDebug() << "Second window isActiveWindow:" << child_window_->isActiveWindow();
-}
-
 void MainWindow::onInputClicked()
 {
     InputDialog dialog(this);
@@ -218,7 +223,7 @@ void MainWindow::onInputClicked()
 
 void MainWindow::onDialogAccepted(const QString &text)
 {
-    input_display_->setText("输入内容: " + text);
+    //input_display_->setText("输入内容: " + text);
 }
 
 void MainWindow::keyPressEvent(QKeyEvent *event)
diff --git a/lib_fiber/samples-gui/QtFiber/mainwindow.h b/lib_fiber/samples-gui/QtFiber/mainwindow.h
index 33caf2b9d..718df57f7 100644
--- a/lib_fiber/samples-gui/QtFiber/mainwindow.h
+++ b/lib_fiber/samples-gui/QtFiber/mainwindow.h
@@ -12,6 +12,7 @@ namespace acl {
 }
 
 class fiber_server;
+struct timeval;
 
 QT_BEGIN_NAMESPACE
 namespace Ui { class MainWindow; }
@@ -27,6 +28,8 @@ class MainWindow : public QMainWindow
     MainWindow(QWidget *parent = nullptr);
     ~MainWindow();
 
+    void setProgress(int n);
+
 protected:
     void keyPressEvent(QKeyEvent *event);
 
@@ -36,11 +39,13 @@ class MainWindow : public QMainWindow
     void onStartClient();
     void onStartSchedule();
     void onStopSchedule();
-    void onOpenChildWindow();
     void onInputClicked();
     void onUrlGet();
 
+    void onClear();
+
     void onDialogAccepted(const QString &text);
+    void closeEvent(QCloseEvent *event) override;
 
 public:
     void onAboutToQuit();
@@ -50,21 +55,9 @@ class MainWindow : public QMainWindow
 
 private:
     Ui::MainWindow *ui_;
-    QPushButton    *button_;
-    QPushButton    *start_server_;
-    QPushButton    *stop_server_;
-    QPushButton    *start_client_;
-    QPushButton    *start_schedule_;
-    QPushButton    *stop_schedule_;
-    QPushButton    *open_child_;
-    QPushButton    *url_get_;
-    std::string     url_;
-    QPushButton    *input_button_;
-    QLabel         *input_display_;
 
     fiber_server   *server_ = nullptr;
     QProcess       *process_;
-
-    ChildWindows   *child_window_ = nullptr;
+    struct timeval *stamp_;
 };
 #endif // MAINWINDOW_H
diff --git a/lib_fiber/samples-gui/QtFiber/mainwindow.ui b/lib_fiber/samples-gui/QtFiber/mainwindow.ui
index 7bff7e1d3..ace77907f 100644
--- a/lib_fiber/samples-gui/QtFiber/mainwindow.ui
+++ b/lib_fiber/samples-gui/QtFiber/mainwindow.ui
@@ -6,20 +6,135 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>800</width>
-    <height>600</height>
+    <width>1600</width>
+    <height>800</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>MainWindow</string>
   </property>
-  <widget class="QWidget" name="centralwidget"/>
+  <widget class="QWidget" name="centralwidget">
+   <widget class="QTextEdit" name="display">
+    <property name="geometry">
+     <rect>
+      <x>390</x>
+      <y>20</y>
+      <width>800</width>
+      <height>600</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="startSchedule">
+    <property name="geometry">
+     <rect>
+      <x>70</x>
+      <y>20</y>
+      <width>291</width>
+      <height>51</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Start fiber schedule</string>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="stopSchedule">
+    <property name="geometry">
+     <rect>
+      <x>70</x>
+      <y>80</y>
+      <width>291</width>
+      <height>51</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Stop fiber schedule</string>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="startServer">
+    <property name="geometry">
+     <rect>
+      <x>70</x>
+      <y>140</y>
+      <width>291</width>
+      <height>51</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Start fiber server</string>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="stopServer">
+    <property name="geometry">
+     <rect>
+      <x>70</x>
+      <y>200</y>
+      <width>291</width>
+      <height>51</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Stop fiber server</string>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="startClient">
+    <property name="geometry">
+     <rect>
+      <x>70</x>
+      <y>260</y>
+      <width>291</width>
+      <height>51</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Start fiber client</string>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="urlGet">
+    <property name="geometry">
+     <rect>
+      <x>70</x>
+      <y>320</y>
+      <width>291</width>
+      <height>51</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Http download</string>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="clear">
+    <property name="geometry">
+     <rect>
+      <x>1210</x>
+      <y>20</y>
+      <width>241</width>
+      <height>51</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>clear</string>
+    </property>
+   </widget>
+   <widget class="QProgressBar" name="progress">
+    <property name="geometry">
+     <rect>
+      <x>390</x>
+      <y>630</y>
+      <width>801</width>
+      <height>41</height>
+     </rect>
+    </property>
+    <property name="value">
+     <number>0</number>
+    </property>
+   </widget>
+  </widget>
   <widget class="QMenuBar" name="menubar">
    <property name="geometry">
     <rect>
      <x>0</x>
      <y>0</y>
-     <width>800</width>
+     <width>1600</width>
      <height>21</height>
     </rect>
    </property>