diff --git a/mainwindow.cpp b/mainwindow.cpp
index e409038..cedd605 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -41,13 +41,11 @@ MainWindow::MainWindow(QWidget* parent)
     groups_view->setMovement(QListView::Free);
     init_groups_list(groups_list);
 
-    init_groups_list(items_list);
     items_view->setItemDelegate(new ItemDisplayDelegate());
     items_view->setViewMode(QListView::IconMode);
     items_view->setResizeMode(QListView::Adjust);
-    items_view->setSelectionRectVisible(true);
-    items_view->setGridSize(QSize(135, 195));
-    items_view->setIconSize(QSize(120, 180));
+
+    connect(groups_view, &QListView::clicked, this, &MainWindow::init_items_present);
 }
 
 MainWindow::~MainWindow()
@@ -61,15 +59,25 @@ MainWindow::init_groups_list(QStandardItemModel* model)
 
     QRandomGenerator gen;
     for (int idx = 0; idx < 200; ++idx) {
-        QList<QStandardItem*> row;
-        row << new QStandardItem("无名集合0");
-        row.last()->setData(gen.generate() % 100, GROUP_ITEMSCOUNT);
-        row.last()->setData(":/imgs/default/cover_item.jpg", GROUP_COVER0_PATH);
+        auto row = new QStandardItem("无名集合0");
+        row->setData(gen.generate() % 100, GROUP_ITEMSCOUNT);
+        row->setData(":/imgs/default/cover_item.jpg", GROUP_COVER0_PATH);
 
         model->appendRow(row);
     }
 }
 
+void
+MainWindow::init_items_present(const QModelIndex& index)
+{
+    QRandomGenerator gen;
+    for (int idx = 0; idx < 200; ++idx) {
+        auto item = new QStandardItem("随机名称");
+        item->setData((gen.generate() % 2 == 1 ? ":/imgs/default/cover.jpg" : ":/imgs/default/cover_item.jpg"), ITEM_ICON_PATH);
+        items_list->appendRow(item);
+    }
+}
+
 GroupDisplayDelegate::GroupDisplayDelegate()
 {
 }