如何使用pyqt5和qt designer从主对话框窗口中打开第二个窗口

Question

嗨，我正在尝试开发一个插件。我使用了用于创建Gui的PyQt5。我想知道在单击按钮后如何启动新窗口。

这是我使用PyQt5 Designer创建的界面。这是图片链接

单击“激活”按钮后，将打开“发送激活密钥”对话框，如上图所示。 单击确定按钮后，我需要打开一个新窗口，如图所示

这是主要的ui_dialog.py

from .gisedify_support_dialog_login import Ui_Dialog
FORM_CLASS, _ = uic.loadUiType(os.path.join(
os.path.dirname(__file__), 'gisedify_support_dialog_base.ui'))
class GisedifySupportDialog(QtWidgets.QDialog, FORM_CLASS):
  def __init__(self, parent=None):
    """Constructor."""
    super(GisedifySupportDialog, self).__init__(parent)
    # Set up the user interface from Designer through FORM_CLASS.
    # After self.setupUi() you can access any designer object by doing
    # self.<objectname>, and you can use autoconnect slots - see
    # http://qt-project.org/doc/qt-4.8/designer-using-a-ui-file.html
    # #widgets-and-dialogs-with-auto-connect
    self.setupUi(self)

def open_login_dialog(self):
    self.nd = Login_Dialog(self)
    self.nd.show()

class Login_Dialog(QtWidgets.QDialog,Ui_Dialog):
 def __init__(self, parent=None):
    super(Login_Dialog, self).__init__(parent)

这是我的UI_Dialog类

from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Dialog(object):
def setupUi(self, Dialog):
    Dialog.setObjectName("Dialog")
    Dialog.resize(400, 300)
    ....
    ....
    self.pushButton.setObjectName("pushButton")


def retranslateUi(self, Dialog):
    _translate = QtCore.QCoreApplication.translate
    Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
    self.label.setText(_translate("Dialog", "Enter activation key"))
    self.pushButton.setText(_translate("Dialog", "Login"))

我正在使用以下方式调用登录窗口

GisedifySupportDialog().open_login_dialog()

上面的代码什么也不做，也没有错误。在主窗口中单击“确定”按钮时，请帮助我打开登录窗口

Answer 1

尝试一下：

def open_login_dialog(self):
    Dialog = QtWidgets.QDialog()
    ui = Ui_Dialog()
    ui.setupUi(Dialog)
    Dialog.exec_()