PyQt5 - 如何将 Qfiledialog 带到前面? [英] PyQt5 - how to bring the Qfiledialog to the front?

问题描述

我的代码使用 PyQt 打开文件夹选择对话框.选择文件夹后，它将最小化.我希望对话框在任何其他窗口之前弹出.我还没有找到解决办法.有什么建议吗?

My code uses PyQt to open up a folder select dialog. Once a folder is selected it is minimized. I'd like for the dialog to pop up in front of any other windows. I haven't been able to find a solution yet. Any suggestions?

from sys import executable, argv
from subprocess import check_output
from PyQt5.QtWidgets import QFileDialog, QApplication

def gui_fname(directory=''):
    file = check_output([executable, __file__, directory])
    return file.strip()

if __name__ == "__main__":
    directory = argv[1]
    app = QApplication([directory])
    folderpath = QFileDialog.getExistingDirectory(None, "Select folder")

推荐答案

我认为您的问题来自以下函数中的无".folderpath = QFileDialog.getExistingDirectory(None, "Select folder")

I think your problem comes from the "None" in the following function. folderpath = QFileDialog.getExistingDirectory(None, "Select folder")

无法设置对话框模式，因为它没有父级.通常，我们有 self 而不是 None.

The dialog modality cannot be set because it has no parent. Usually, instead of None we have self.

当然应用程序不是从 QWidget 继承的.很抱歉.

Of cource app is not inheriting from QWidget. Sorry about that.

改用这个.我对其进行了测试:

use this instead. I tested it an it work:

import sys
from subprocess import check_output
from PyQt5.QtWidgets import QFileDialog, QApplication, QWidget

def gui_fname(directory=''):
    file = check_output([executable, __file__, directory])
    return file.strip()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    wid = QWidget()
    folderpath = QFileDialog.getExistingDirectory(wid, "Select folder")
    sys.exit(app.exec_())

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