最新選定的目錄作爲QFileDialog中的默認目錄

Question

如何將最新選定的目錄設置爲QFileDialog中的默認目錄？

Answer 1

，可以儲存最後選定的目錄中某些變量和QFileDialog::getOpenFileName下一次通話中使用它：

QString path = "/"; 
QString fileName = QFileDialog::getOpenFileName(this, "Open file", path); 
path = QFileInfo(fileName).path(); 

// default directory will be directory from previous call 
QString anotherFilename = QFileDialog::getOpenFileName(this, "Open file", path);