從Qt文件夾加載圖像

Question

我是QT新手，我想要顯示大量圖像，並且能夠從文件夾加載它們，我只有一個圖像的代碼，它工作正常，但想要對於許多圖像相同的結果，這裏是我的代碼：

QString imagePath = QFileDialog::getOpenFileName(
      this, 
      tr("Open File"), 
      "", 
      tr("JPEG (*.jpg *.jpeg);;PNG (*.png);; BMP (*.bmp)") 
      ); 
imageObject = new QImage(); 
imageObject->load(imagePath); 
image = QPixmap::fromImage(*imageObject); 
scene = new QGraphicsScene(this); 
scene->addPixmap(image); 
scene->setSceneRect(image.rect()); 
ui->graphicsView->setScene(scene); 

Answer 1

您可以使用打開的文件夾，這裏只是snipsets：

const QString folderPath = QFileDialog::getExistingDirectory(this, tr("Image folder")); 
if(!folderPath.isEmpty()) 
{ 
    QDir dir(folderPath); 
    QStringList filter; 
    filter << QLatin1String("*.png"); 
    filter << QLatin1String("*.jpeg"); 
    filter << QLatin1String("*.jpg"); 
    dir.setNameFilters(filter); 
    QFileInfoList filelistinfo = dir.entryInfoList(); 
    QStringList fileList; 
    foreach (const QFileInfo &fileinfo, filelistinfo) { 
     QString imageFile = fileinfo.absoluteFilePath(); 
     //imageFile is the image path, just put your load image code here 
    } 
}