[提问]ProgressDialog对话框进度条不显示进度 [复制链接]

描述:进度条不显示进度

图片:R0K~W}C6I@$H((A6E41~(_2.png

  QProgressDialog *progressDialog=new QProgressDialog(this);
        QFont font("ZYSong18030",12);
        progressDialog->setFont(font);
        progressDialog->setWindowModality(Qt::WindowModal);
        progressDialog->setMinimumDuration(5);
        progressDialog->setWindowTitle(tr("Please Wait"));
        progressDialog->setLabelText(tr("Copying..."));
        progressDialog->setCancelButtonText(tr("Cancel"));
        progressDialog->setRange(0,num);                //num表示要传输的文件个数
        for(int i=1;i<num+1;i++)
        {
            progressDialog->setValue(i);
            if(progressDialog->wasCanceled())
                return;
        }
        ProgressDialog->show();

该怎么解决，大神指教

自己重新写一个类嘛

如果只是想试试效果，请在循环里加个延时。

  for(int i=1;i<num+1;i++)
        {
            progressDialog->setValue(i);
            QApplication::processEvents();
            if(progressDialog->wasCanceled())
                return;
        }

加个processEvents()以进行事件处理。

XChinux:  for(int i=1;i<num+1;i++)
        {
            progressDialog->setValue(i);
            .. (2016-04-04 19:49) 

谢谢版主