Bug fixed.

mainwidget.cpp

@@ -1,6 +1,5 @@
 #include "mainwidget.h"
 #include "ui_mainwidget.h"
-#include <QPointer>
 
 MainWidget::MainWidget(QString username,QWidget *parent) :
     QWidget(parent),
@@ -244,7 +243,7 @@ void MainWidget::on_exit_btn_clicked()
     close();
 }
 
-void MainWidget::on_stop_clicked()
+void MainWidget::on_stop_btn_clicked()
 {
     zoom_down(ui->stop);
     zoom_up(ui->stop);

mainwidget.h

@@ -20,6 +20,7 @@
 #include <QTimer>
 #include <QDesktopServices>
 #include <QPropertyAnimation>
+#include <QPointer>
 
 namespace Ui {
 class MainWidget;
@@ -53,7 +54,7 @@ private slots:
     void on_send_btn_clicked();
     void on_name_list_itemDoubleClicked(QListWidgetItem *item);
     void on_exit_btn_clicked();
-    void on_stop_clicked();
+    void on_stop_btn_clicked();
     void message_reminder();
     void onFlashTimerOut();
 public slots: