我遇到以下问题：我有一个带有三个按钮的主窗口，还有一个小部件作为我的不同界面的占位符。 这是我的代码：
from PyQt5 import QtWidgets, QtCore
from ui.mainwindow import Ui_DeviceLauncher
from ui.testrun import Ui_Testrun
class MainWindow(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super().__init__(parent)
self.ui = Ui_DeviceLauncher()
self.ui.setupUi(self)
self.ui.changeWindowL.removeWidget(self.ui.changeWindow)
self.ui.changeWindow.close()
self.ui.changeWindow = Ui_Testrun() # This does not work how I want?
self.ui.changeWindowL.addWidget(self.ui.changeWindow)
self.ui.changeWindowL.update()
self.setWindowTitle("Device Launcher")
#%%=======================================================================================
# Main
#=========================================================================================
app = QtWidgets.QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec())
因此，我使用了两个用qtpy构建的ui文件，请参见以下内容： File1-主窗口：
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_DeviceLauncher(object):
def setupUi(self, DeviceLauncher):
DeviceLauncher.setObjectName("DeviceLauncher")
DeviceLauncher.resize(800, 460)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Preferred)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(DeviceLauncher.sizePolicy().hasHeightForWidth())
DeviceLauncher.setSizePolicy(sizePolicy)
DeviceLauncher.setMinimumSize(QtCore.QSize(800, 460))
DeviceLauncher.setContextMenuPolicy(QtCore.Qt.NoContextMenu)
DeviceLauncher.setLayoutDirection(QtCore.Qt.LeftToRight)
DeviceLauncher.setToolButtonStyle(QtCore.Qt.ToolButtonTextOnly)
DeviceLauncher.setAnimated(True)
DeviceLauncher.setDockOptions(QtWidgets.QMainWindow.AllowTabbedDocks|QtWidgets.QMainWindow.AnimatedDocks)
self.centralWidget = QtWidgets.QWidget(DeviceLauncher)
self.centralWidget.setObjectName("centralWidget")
self.gridLayout_3 = QtWidgets.QGridLayout(self.centralWidget)
self.gridLayout_3.setContentsMargins(11, 11, 11, 11)
self.gridLayout_3.setSpacing(6)
self.gridLayout_3.setObjectName("gridLayout_3")
self.verticalLayout = QtWidgets.QVBoxLayout()
self.verticalLayout.setSpacing(6)
self.verticalLayout.setObjectName("verticalLayout")
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setSpacing(6)
self.horizontalLayout.setObjectName("horizontalLayout")
self.pushButton_back = QtWidgets.QPushButton(self.centralWidget)
self.pushButton_back.setEnabled(False)
self.pushButton_back.setStyleSheet("QPushButton {\n"
"color: white;\n"
"background-color: #2e9afe;\n"
"\n"
"height: 30px;\n"
"border-width: 0px;\n"
"border-radius: 3px;\n"
"min-width: 6em;\n"
"qproperty-text: \"BACK\";\n"
"}\n"
"\n"
"QPushButton:hover\n"
"{\n"
"background-color: #4a34ff;\n"
"}\n"
"\n"
"QPushButton:disabled {\n"
"background-color: gray;\n"
"color:white;\n"
"}")
self.pushButton_back.setFlat(False)
self.pushButton_back.setObjectName("pushButton_back")
self.horizontalLayout.addWidget(self.pushButton_back)
spacerItem = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
self.horizontalLayout.addItem(spacerItem)
self.pushButton_user = QtWidgets.QPushButton(self.centralWidget)
self.pushButton_user.setStyleSheet("QPushButton {\n"
"color: white;\n"
"background-color: #2e9afe;\n"
"\n"
"height: 30px;\n"
"border-width: 0px;\n"
"border-radius: 3px;\n"
"min-width: 6em;\n"
"qproperty-text: \"USER\";\n"
"}\n"
"\n"
"QPushButton:hover\n"
"{\n"
"background-color: #0040ff;\n"
"}")
self.pushButton_user.setObjectName("pushButton_user")
self.horizontalLayout.addWidget(self.pushButton_user)
self.pushButton_connect = QtWidgets.QPushButton(self.centralWidget)
self.pushButton_connect.setStyleSheet("QPushButton {\n"
"color: white;\n"
"background-color: #2e9afe;\n"
"\n"
"height: 30px;\n"
"border-width: 0px;\n"
"border-radius: 3px;\n"
"min-width: 6em;\n"
"qproperty-text: \"CONNECT\";\n"
"}\n"
"\n"
"QPushButton:hover\n"
"{\n"
"background-color: #0040ff;\n"
"}\n"
"\n"
"QPushButton:disabled {\n"
"background-color: gray;\n"
"color:white;\n"
"}\n"
"\n"
"QPushButton[connected=true] {\n"
"background-color: green;\n"
"qproperty-text: \"DISCONNECT\";\n"
"}\n"
"QPushButton[failed=true] {\n"
"background-color: red;\n"
"qproperty-text: \"FAILED\";\n"
"}")
self.pushButton_connect.setObjectName("pushButton_connect")
self.horizontalLayout.addWidget(self.pushButton_connect)
self.verticalLayout.addLayout(self.horizontalLayout)
self.changeWindow = QtWidgets.QWidget(self.centralWidget)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.changeWindow.sizePolicy().hasHeightForWidth())
self.changeWindow.setSizePolicy(sizePolicy)
self.changeWindow.setObjectName("changeWindow")
self.changeWindowL = QtWidgets.QVBoxLayout(self.changeWindow)
self.changeWindowL.setContentsMargins(9, 25, 9, 9)
self.changeWindowL.setSpacing(0)
self.changeWindowL.setObjectName("changeWindowL")
self.verticalLayout.addWidget(self.changeWindow)
self.horizontalLayout_3 = QtWidgets.QHBoxLayout()
self.horizontalLayout_3.setSpacing(6)
self.horizontalLayout_3.setObjectName("horizontalLayout_3")
self.pushButton_settings = QtWidgets.QPushButton(self.centralWidget)
self.pushButton_settings.setStyleSheet("QPushButton {\n"
"color: white;\n"
"background-color: #2e9afe;\n"
"\n"
"height: 30px;\n"
"border-width: 0px;\n"
"border-radius: 3px;\n"
"min-width: 6em;\n"
"qproperty-text: \"SETTINGS\";\n"
"}\n"
"\n"
"QPushButton:hover\n"
"{\n"
"background-color: #0040ff;\n"
"}\n"
"\n"
"QPushButton:disabled {\n"
"background-color: gray;\n"
"color:white;\n"
"}")
self.pushButton_settings.setObjectName("pushButton_settings")
self.horizontalLayout_3.addWidget(self.pushButton_settings)
spacerItem1 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
self.horizontalLayout_3.addItem(spacerItem1)
self.verticalLayout.addLayout(self.horizontalLayout_3)
self.gridLayout_3.addLayout(self.verticalLayout, 0, 0, 1, 1)
DeviceLauncher.setCentralWidget(self.centralWidget)
self.actionClear_Options = QtWidgets.QAction(DeviceLauncher)
self.actionClear_Options.setObjectName("actionClear_Options")
self.actionClear_All = QtWidgets.QAction(DeviceLauncher)
self.actionClear_All.setObjectName("actionClear_All")
self.retranslateUi(DeviceLauncher)
QtCore.QMetaObject.connectSlotsByName(DeviceLauncher)
def retranslateUi(self, DeviceLauncher):
_translate = QtCore.QCoreApplication.translate
DeviceLauncher.setWindowTitle(_translate("DeviceLauncher", "Device Launcher"))
self.pushButton_back.setText(_translate("DeviceLauncher", "BACK"))
self.pushButton_user.setText(_translate("DeviceLauncher", "USER"))
self.pushButton_connect.setText(_translate("DeviceLauncher", "CONNECT"))
self.pushButton_settings.setText(_translate("DeviceLauncher", "SETTINGS"))
self.actionClear_Options.setText(_translate("DeviceLauncher", "Clear Options"))
self.actionClear_All.setText(_translate("DeviceLauncher", "Clear All"))
文件2-第一个界面：
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Testrun(object):
def setupUi(self, Testrun):
Testrun.setObjectName("Testrun")
Testrun.resize(780, 364)
Testrun.setStyleSheet("background-color: transparent;")
self.gridLayout = QtWidgets.QGridLayout(Testrun)
self.gridLayout.setContentsMargins(20, -1, 20, -1)
self.gridLayout.setObjectName("gridLayout")
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setObjectName("horizontalLayout")
self.textBrowser = QtWidgets.QTextBrowser(Testrun)
self.textBrowser.setObjectName("textBrowser")
self.horizontalLayout.addWidget(self.textBrowser)
self.verticalLayout = QtWidgets.QVBoxLayout()
self.verticalLayout.setObjectName("verticalLayout")
self.textBrowser_terminal = QtWidgets.QTextBrowser(Testrun)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.textBrowser_terminal.sizePolicy().hasHeightForWidth())
self.textBrowser_terminal.setSizePolicy(sizePolicy)
self.textBrowser_terminal.setObjectName("textBrowser_terminal")
self.verticalLayout.addWidget(self.textBrowser_terminal)
self.progressBar = QtWidgets.QProgressBar(Testrun)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Preferred)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.progressBar.sizePolicy().hasHeightForWidth())
self.progressBar.setSizePolicy(sizePolicy)
self.progressBar.setProperty("value", 24)
self.progressBar.setObjectName("progressBar")
self.verticalLayout.addWidget(self.progressBar)
self.horizontalLayout_2 = QtWidgets.QHBoxLayout()
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.pushButton_stop = QtWidgets.QPushButton(Testrun)
self.pushButton_stop.setObjectName("pushButton_stop")
self.horizontalLayout_2.addWidget(self.pushButton_stop)
spacerItem = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
self.horizontalLayout_2.addItem(spacerItem)
self.pushButton_start = QtWidgets.QPushButton(Testrun)
self.pushButton_start.setObjectName("pushButton_start")
self.horizontalLayout_2.addWidget(self.pushButton_start)
self.verticalLayout.addLayout(self.horizontalLayout_2)
self.horizontalLayout.addLayout(self.verticalLayout)
self.gridLayout.addLayout(self.horizontalLayout, 0, 0, 1, 1)
self.retranslateUi(Testrun)
QtCore.QMetaObject.connectSlotsByName(Testrun)
def retranslateUi(self, Testrun):
_translate = QtCore.QCoreApplication.translate
Testrun.setWindowTitle(_translate("Testrun", "Form"))
self.pushButton_stop.setText(_translate("Testrun", "PushButton"))
self.pushButton_start.setText(_translate("Testrun", "PushButton"))
现在，我的问题是：是否可以像这样使用父主窗口和子窗口小部件，但是如何呢？还是有另一种方法可以做到这一点。经过研究，我还没有找到类似的用例。