尝试添加恢复上次尺寸大小

MainWidget.cpp

@@ -1,5 +1,6 @@
 #include "MainWidget.h"
 #include <QClipboard>
+#include <QSettings>
 #include "./ui_MainWidget.h"
 
 constexpr std::size_t g_OnePage = 100;
@@ -48,6 +49,11 @@ MainWidget::MainWidget(QWidget* parent) : QWidget(parent), ui(new Ui::MainWidget
         push_content(current_, cur);
     });
     connect(ui->btnCopyKey, &QPushButton::clicked, this, &MainWidget::copy_key);
+
+    QSettings settings;
+    settings.beginGroup("xmlopr");
+    restoreGeometry(settings.value("geometry").toByteArray());
+    settings.endGroup();
 }
 
 void MainWidget::copy_key()
@@ -79,6 +85,15 @@ void MainWidget::edit_property()
     xml_.key_value_to_element(target, property);
 }
 
+void MainWidget::closeEvent(QCloseEvent* event)
+{
+    QSettings settings;
+    settings.beginGroup("xmlopr");
+    settings.setValue("geometry", saveGeometry());
+    settings.endGroup();
+    QWidget::closeEvent(event);
+}
+
 MainWidget::~MainWidget()
 {
     delete attri_edit_;

MainWidget.h

@@ -39,6 +39,10 @@ private:
     void judge_btn_page();
     void copy_key();
     void edit_property();
+
+protected:
+    void closeEvent(QCloseEvent* event);
+
 private:
     Element_t*        get_element_bykey(const QString& key);
     Element_t*        get_current_select_key();