QListWidget简单使用

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申明qlistwidget变量

  QListWidget* listwidget;    QListWidgetItem *pItem;

listwidget初始化这里根据当前显示器对listwidget的大小进行动态调整

    listwidget = new QListWidget(widget);    listwidget->setGeometry(screen_size.width()/64*9-3,screen_size.height()/64*9-3,((icon_width+8)*screen_size.width()/1680)*5,((icon_height+5)*screen_size.height()/1050)*5);    listwidget->setViewMode(QListView::IconMode);    listwidget->setIconSize(QSize(icon_width*screen_size.width()/1680,(icon_height-20)*screen_size.height()/1050));    listwidget->setSpacing(5);    listwidget->setMovement(QListView::Static);    listwidget->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);    listwidget->setVisible(true);

给listwidget添加略缩图，这里是直接insertitem一列只有一个文件

            QPixmap objPixmap(str);            pItem = new QListWidgetItem(QIcon(objPixmap.scaled(QSize(300*screen_size.width()/1680,300*screen_size.height()/1050))),strName);            pItem->setSizeHint(QSize(icon_width*screen_size.width()/1680,(icon_height-2)*screen_size.height()/1050));            listwidget->insertItem(i++,pItem);

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