我有两个使用 pyuic5 转换为 python 的 .ui 文件。 第一个转换后的 ui 文件是(LoginWindowUI.py)，如下所示:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_LoginWindow(object):
def setupUi(self, LoginWindow):
LoginWindow.setObjectName("LoginWindow")
LoginWindow.setWindowModality(QtCore.Qt.NonModal)
LoginWindow.setEnabled(True)
LoginWindow.resize(446, 182)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(LoginWindow.sizePolicy().hasHeightForWidth())
LoginWindow.setSizePolicy(sizePolicy)
LoginWindow.setMouseTracking(False)
LoginWindow.setLayoutDirection(QtCore.Qt.RightToLeft)
LoginWindow.setLocale(QtCore.QLocale(QtCore.QLocale.Persian, QtCore.QLocale.Iran))
LoginWindow.setDocumentMode(False)
self.centralwidget = QtWidgets.QWidget(LoginWindow)
self.centralwidget.setObjectName("centralwidget")
self.layoutWidget = QtWidgets.QWidget(self.centralwidget)
self.layoutWidget.setGeometry(QtCore.QRect(194, 30, 187, 77))
self.layoutWidget.setObjectName("layoutWidget")
self.gridLayout = QtWidgets.QGridLayout(self.layoutWidget)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setObjectName("gridLayout")
self.password_ldt = QtWidgets.QLineEdit(self.layoutWidget)
self.password_ldt.setLocale(QtCore.QLocale(QtCore.QLocale.Persian, QtCore.QLocale.Iran))
self.password_ldt.setText("")
self.password_ldt.setEchoMode(QtWidgets.QLineEdit.Password)
self.password_ldt.setCursorPosition(0)
self.password_ldt.setAlignment(QtCore.Qt.AlignCenter)
self.password_ldt.setObjectName("password_ldt")
self.gridLayout.addWidget(self.password_ldt, 1, 1, 1, 1)
self.password_lbl = QtWidgets.QLabel(self.layoutWidget)
self.password_lbl.setAlignment(QtCore.Qt.AlignCenter)
self.password_lbl.setObjectName("password_lbl")
self.gridLayout.addWidget(self.password_lbl, 1, 0, 1, 1)
self.username_lbl = QtWidgets.QLabel(self.layoutWidget)
self.username_lbl.setAlignment(QtCore.Qt.AlignCenter)
self.username_lbl.setObjectName("username_lbl")
self.gridLayout.addWidget(self.username_lbl, 0, 0, 1, 1)
self.username_ldt = QtWidgets.QLineEdit(self.layoutWidget)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Preferred)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.username_ldt.sizePolicy().hasHeightForWidth())
self.username_ldt.setSizePolicy(sizePolicy)
self.username_ldt.setLocale(QtCore.QLocale(QtCore.QLocale.Persian, QtCore.QLocale.Iran))
self.username_ldt.setText("")
self.username_ldt.setEchoMode(QtWidgets.QLineEdit.Normal)
self.username_ldt.setAlignment(QtCore.Qt.AlignCenter)
self.username_ldt.setObjectName("username_ldt")
self.gridLayout.addWidget(self.username_ldt, 0, 1, 1, 1)
self.login_btn = QtWidgets.QPushButton(self.layoutWidget)
self.login_btn.setCursor(QtGui.QCursor(QtCore.Qt.ClosedHandCursor))
self.login_btn.setAutoDefault(False)
self.login_btn.setDefault(False)
self.login_btn.setObjectName("login_btn")
self.gridLayout.addWidget(self.login_btn, 2, 1, 1, 1)
self.description_lbl = QtWidgets.QLabel(self.centralwidget)
self.description_lbl.setGeometry(QtCore.QRect(30, 40, 141, 41))
self.description_lbl.setText("")
self.description_lbl.setAlignment(QtCore.Qt.AlignCenter)
self.description_lbl.setWordWrap(True)
self.description_lbl.setObjectName("description_lbl")
LoginWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(LoginWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 446, 21))
self.menubar.setObjectName("menubar")
self.menu = QtWidgets.QMenu(self.menubar)
self.menu.setObjectName("menu")
LoginWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(LoginWindow)
self.statusbar.setCursor(QtGui.QCursor(QtCore.Qt.ArrowCursor))
self.statusbar.setObjectName("statusbar")
LoginWindow.setStatusBar(self.statusbar)
self.action_cra = QtWidgets.QAction(LoginWindow)
self.action_cra.setObjectName("action_cra")
self.action_db = QtWidgets.QAction(LoginWindow)
self.action_db.setObjectName("action_db")
self.action_exit = QtWidgets.QAction(LoginWindow)
self.action_exit.setObjectName("action_exit")
self.menu.addAction(self.action_cra)
self.menu.addAction(self.action_db)
self.menu.addSeparator()
self.menu.addAction(self.action_exit)
self.menubar.addAction(self.menu.menuAction())
self.retranslateUi(LoginWindow)
self.action_exit.triggered.connect(LoginWindow.close)
QtCore.QMetaObject.connectSlotsByName(LoginWindow)
LoginWindow.setTabOrder(self.username_ldt, self.password_ldt)
LoginWindow.setTabOrder(self.password_ldt, self.login_btn)
def retranslateUi(self, LoginWindow):
_translate = QtCore.QCoreApplication.translate
self.password_ldt.setToolTip(_translate("LoginWindow", "رمز عبور خود را وارد کنید."))
self.password_lbl.setText(_translate("LoginWindow", " رمز عبور "))
self.username_lbl.setText(_translate("LoginWindow", "نام کاربری"))
self.username_ldt.setToolTip(_translate("LoginWindow", "لطفاً نام کاربری خود را وارد نمایید."))
self.login_btn.setText(_translate("LoginWindow", "ورود"))
self.menu.setTitle(_translate("LoginWindow", "درباره ما"))
self.action_cra.setText(_translate("LoginWindow", "A"))
self.action_db.setText(_translate("LoginWindow", "B"))
self.action_exit.setText(_translate("LoginWindow", "خروج"))
self.action_exit.setStatusTip(_translate("LoginWindow", "خروج"))
self.action_exit.setShortcut(_translate("LoginWindow", "Ctrl+Q"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
LoginWindow = QtWidgets.QMainWindow()
ui = Ui_LoginWindow()
ui.setupUi(LoginWindow)
LoginWindow.show()
sys.exit(app.exec_())
第二个转换后的.ui文件是(MainWindowUI.py)，如下所示:
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(452, 432)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.cralogo_lbl = QtWidgets.QLabel(self.centralwidget)
self.cralogo_lbl.setGeometry(QtCore.QRect(90, 30, 171, 161))
self.cralogo_lbl.setText("")
self.cralogo_lbl.setPixmap(QtGui.QPixmap("../../.designer/backup/ICONS/CraLogo.png"))
self.cralogo_lbl.setScaledContents(True)
self.cralogo_lbl.setObjectName("cralogo_lbl")
self.exit_btn = QtWidgets.QPushButton(self.centralwidget)
self.exit_btn.setGeometry(QtCore.QRect(140, 340, 125, 40))
self.exit_btn.setMinimumSize(QtCore.QSize(125, 40))
self.exit_btn.setLayoutDirection(QtCore.Qt.LeftToRight)
self.exit_btn.setCheckable(False)
self.exit_btn.setChecked(False)
self.exit_btn.setObjectName("exit_btn")
self.layoutWidget = QtWidgets.QWidget(self.centralwidget)
self.layoutWidget.setGeometry(QtCore.QRect(20, 10, 389, 152))
self.layoutWidget.setObjectName("layoutWidget")
self.gridLayout = QtWidgets.QGridLayout(self.layoutWidget)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setObjectName("gridLayout")
self.mobile_btn = QtWidgets.QPushButton(self.layoutWidget)
self.mobile_btn.setEnabled(False)
self.mobile_btn.setMinimumSize(QtCore.QSize(125, 40))
self.mobile_btn.setLayoutDirection(QtCore.Qt.RightToLeft)
self.mobile_btn.setCheckable(False)
self.mobile_btn.setChecked(False)
self.mobile_btn.setObjectName("mobile_btn")
self.gridLayout.addWidget(self.mobile_btn, 1, 0, 1, 1)
self.dataentry_btn = QtWidgets.QPushButton(self.layoutWidget)
self.dataentry_btn.setMinimumSize(QtCore.QSize(125, 40))
self.dataentry_btn.setLayoutDirection(QtCore.Qt.LeftToRight)
self.dataentry_btn.setCheckable(False)
self.dataentry_btn.setChecked(False)
self.dataentry_btn.setObjectName("dataentry_btn")
self.gridLayout.addWidget(self.dataentry_btn, 0, 2, 1, 1)
self.village_btn = QtWidgets.QPushButton(self.layoutWidget)
self.village_btn.setEnabled(False)
self.village_btn.setMinimumSize(QtCore.QSize(125, 40))
self.village_btn.setLayoutDirection(QtCore.Qt.RightToLeft)
self.village_btn.setCheckable(False)
self.village_btn.setChecked(False)
self.village_btn.setObjectName("village_btn")
self.gridLayout.addWidget(self.village_btn, 1, 1, 1, 1)
self.fix_btn = QtWidgets.QPushButton(self.layoutWidget)
self.fix_btn.setEnabled(False)
self.fix_btn.setMinimumSize(QtCore.QSize(125, 40))
self.fix_btn.setLayoutDirection(QtCore.Qt.RightToLeft)
self.fix_btn.setCheckable(False)
self.fix_btn.setChecked(False)
self.fix_btn.setObjectName("fix_btn")
self.gridLayout.addWidget(self.fix_btn, 0, 0, 1, 1)
self.post_btn = QtWidgets.QPushButton(self.layoutWidget)
self.post_btn.setEnabled(False)
self.post_btn.setMinimumSize(QtCore.QSize(125, 40))
self.post_btn.setLayoutDirection(QtCore.Qt.RightToLeft)
self.post_btn.setCheckable(False)
self.post_btn.setChecked(False)
self.post_btn.setObjectName("post_btn")
self.gridLayout.addWidget(self.post_btn, 2, 0, 1, 1)
self.city_btn = QtWidgets.QPushButton(self.layoutWidget)
self.city_btn.setEnabled(False)
self.city_btn.setMinimumSize(QtCore.QSize(125, 40))
self.city_btn.setLayoutDirection(QtCore.Qt.RightToLeft)
self.city_btn.setCheckable(False)
self.city_btn.setChecked(False)
self.city_btn.setObjectName("city_btn")
self.gridLayout.addWidget(self.city_btn, 0, 1, 1, 1)
self.layoutWidget1 = QtWidgets.QWidget(self.centralwidget)
self.layoutWidget1.setGeometry(QtCore.QRect(20, 190, 389, 134))
self.layoutWidget1.setObjectName("layoutWidget1")
self.gridLayout_2 = QtWidgets.QGridLayout(self.layoutWidget1)
self.gridLayout_2.setContentsMargins(0, 0, 0, 0)
self.gridLayout_2.setObjectName("gridLayout_2")
self.rep4_btn = QtWidgets.QPushButton(self.layoutWidget1)
self.rep4_btn.setEnabled(False)
self.rep4_btn.setMinimumSize(QtCore.QSize(125, 40))
self.rep4_btn.setMaximumSize(QtCore.QSize(125, 40))
self.rep4_btn.setCheckable(False)
self.rep4_btn.setObjectName("rep4_btn")
self.gridLayout_2.addWidget(self.rep4_btn, 0, 0, 1, 1)
self.rep1_btn = QtWidgets.QPushButton(self.layoutWidget1)
self.rep1_btn.setEnabled(False)
self.rep1_btn.setMinimumSize(QtCore.QSize(125, 40))
self.rep1_btn.setMaximumSize(QtCore.QSize(125, 40))
self.rep1_btn.setCheckable(False)
self.rep1_btn.setObjectName("rep1_btn")
self.gridLayout_2.addWidget(self.rep1_btn, 0, 1, 1, 1)
self.report_btn = QtWidgets.QPushButton(self.layoutWidget1)
self.report_btn.setMinimumSize(QtCore.QSize(125, 40))
self.report_btn.setMaximumSize(QtCore.QSize(125, 40))
self.report_btn.setCheckable(False)
self.report_btn.setObjectName("report_btn")
self.gridLayout_2.addWidget(self.report_btn, 0, 2, 1, 1)
self.rep5_btn = QtWidgets.QPushButton(self.layoutWidget1)
self.rep5_btn.setEnabled(False)
self.rep5_btn.setMinimumSize(QtCore.QSize(125, 40))
self.rep5_btn.setMaximumSize(QtCore.QSize(125, 40))
self.rep5_btn.setCheckable(False)
self.rep5_btn.setObjectName("rep5_btn")
self.gridLayout_2.addWidget(self.rep5_btn, 1, 0, 1, 1)
self.rep2_btn = QtWidgets.QPushButton(self.layoutWidget1)
self.rep2_btn.setEnabled(False)
self.rep2_btn.setMinimumSize(QtCore.QSize(125, 40))
self.rep2_btn.setMaximumSize(QtCore.QSize(125, 40))
self.rep2_btn.setCheckable(False)
self.rep2_btn.setObjectName("rep2_btn")
self.gridLayout_2.addWidget(self.rep2_btn, 1, 1, 1, 1)
self.rep6_btn = QtWidgets.QPushButton(self.layoutWidget1)
self.rep6_btn.setEnabled(False)
self.rep6_btn.setMinimumSize(QtCore.QSize(125, 40))
self.rep6_btn.setMaximumSize(QtCore.QSize(125, 40))
self.rep6_btn.setCheckable(False)
self.rep6_btn.setObjectName("rep6_btn")
self.gridLayout_2.addWidget(self.rep6_btn, 2, 0, 1, 1)
self.rep3_btn = QtWidgets.QPushButton(self.layoutWidget1)
self.rep3_btn.setEnabled(False)
self.rep3_btn.setMinimumSize(QtCore.QSize(125, 40))
self.rep3_btn.setMaximumSize(QtCore.QSize(125, 40))
self.rep3_btn.setCheckable(False)
self.rep3_btn.setObjectName("rep3_btn")
self.gridLayout_2.addWidget(self.rep3_btn, 2, 1, 1, 1)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 452, 21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
self.exit_btn.clicked.connect(MainWindow.close)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.cralogo_lbl.setStatusTip(_translate("MainWindow", "www.cra.ir"))
self.exit_btn.setText(_translate("MainWindow", "خروج"))
self.mobile_btn.setText(_translate("MainWindow", "4"))
self.dataentry_btn.setText(_translate("MainWindow", "A"))
self.village_btn.setText(_translate("MainWindow", "2"))
self.fix_btn.setText(_translate("MainWindow", "3"))
self.post_btn.setText(_translate("MainWindow", "5"))
self.city_btn.setText(_translate("MainWindow", "1"))
self.rep4_btn.setText(_translate("MainWindow", "4"))
self.rep1_btn.setText(_translate("MainWindow", "1"))
self.report_btn.setText(_translate("MainWindow", "B"))
self.rep5_btn.setText(_translate("MainWindow", "5"))
self.rep2_btn.setText(_translate("MainWindow", "2"))
self.rep6_btn.setText(_translate("MainWindow", "6"))
self.rep3_btn.setText(_translate("MainWindow", "3"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
我的主要 python 文件是:
from LoginWindowUI import Ui_LoginWindow
from MainWindowUI import Ui_MainWindow
from PyQt5 import QtCore,QtGui,QtWidgets
import sys
import mysql.connector
open_main_window_flag = False
class Main_Window():
def __init__(self):
app = QtWidgets.QApplication(sys.argv)
self.MWindow = QtWidgets.QMainWindow()
self.ui_MWindow = Ui_MainWindow()
self.ui_MWindow.setupUi(self.MWindow)
self.MWindow.show()
sys.exit(app.exec_())
class login():
def __init__(self):
app = QtWidgets.QApplication(sys.argv)
self.LoginWindow = QtWidgets.QMainWindow()
self.ui_login = Ui_LoginWindow()
self.ui_login.setupUi(self.LoginWindow)
self.ui_login.login_btn.clicked.connect(self.loginform)
self.authentication_flag = False
self.LoginWindow.show()
sys.exit(app.exec_())
def loginform(self):
global open_main_window_flag
db_user = self.ui_login.username_ldt.text()
db_pass = self.ui_login.password_ldt.text()
if(db_user == 'admin' and db_pass=='admin'):
print('Welcome')
self.authentication_flag = True
else:
print('Try Again')
self.authentication_flag = False
if self.authentication_flag:
self.LoginWindow.close()
open_main_window_flag = True
if __name__ == '__main__':
mylogin = login()
if open_main_window_flag:
mymainwindow = Main_Window()
我希望当用户在用户名和密码中输入“admin”、“admin”时，此窗口会关闭并打开第二个 ui 文件。
最佳答案
您有以下错误:
QApplication只能有一个对象，您为每个窗口创建一个对象，这是不正确的。避免使用全局变量，它们被认为是不好的做法，并且很少有必要。欲了解更多信息，请阅读:Why are global variables evil?
Qt Designer 不提供小部件，而是提供用于填充小部件的类，因此 PyQt 建议创建一个合适的小部件类并用该类填充它，有关更多信息，请阅读:http://pyqt.sourceforge.net/Docs/PyQt5/designer.html
言归正传，您不能使用标志，因为该过程是异步的，在 Qt 中您使用信号，这是通知发生更改的正确方法，例如，保持类分离的一种方法是创建一个信号表明您已登录，关闭窗口并打开另一个窗口。
from LoginWindowUI import Ui_LoginWindow
from MainWindowUI import Ui_MainWindow
from PyQt5 import QtCore, QtGui, QtWidgets
class Main_Window(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self, parent=None):
super(Main_Window, self).__init__(parent)
self.setupUi(self)
class LoginWindow(QtWidgets.QMainWindow, Ui_LoginWindow):
logged = QtCore.pyqtSignal()
def __init__(self, parent=None):
super(LoginWindow, self).__init__(parent)
self.setupUi(self)
self.login_btn.clicked.connect(self.authenticate)
@QtCore.pyqtSlot()
def authenticate(self):
db_user = self.username_ldt.text()
db_pass = self.password_ldt.text()
if db_user == 'admin' and db_pass=='admin':
self.logged.emit()
self.close()
def main():
import sys
app = QtWidgets.QApplication(sys.argv)
login = LoginWindow()
w = Main_Window()
login.logged.connect(w.show)
login.show()
sys.exit(app.exec_())
if __name__ == '__main__': main()
关于python - 如何在主Python文件中使用多个.ui文件，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/53088268/