вы уверены? /да и нет我需要通过居中和调暗它（假设是半透明的灰色，都在同一个窗口中）在主窗口的顶部覆盖一个对话框（比如说小部件）。
如何实施？
我的代码：
import os
import sys
from PySide6 import QtWidgets, QtCore
from PySide6.QtCore import (QCoreApplication, QMetaObject, QSize, Qt)
from PySide6.QtGui import QPixmap
from PySide6.QtWidgets import (QFormLayout, QFrame, QGridLayout,
QMainWindow, QPushButton, QSizePolicy, QSpacerItem,
QWidget, QLabel, QVBoxLayout)
class Ui_Form(object):
def setupUi(self, Form):
if not Form.objectName():
Form.setObjectName(u"Form")
Form.resize(417, 120)
self.gridLayout_2 = QGridLayout(Form)
self.gridLayout_2.setObjectName(u"gridLayout_2")
self.label = QLabel(Form)
self.label.setObjectName(u"label")
self.label.setMaximumSize(QSize(16777215, 50))
self.label.setAlignment(Qt.AlignCenter)
self.gridLayout_2.addWidget(self.label, 0, 0, 1, 2)
self.pushButton = QPushButton(Form)
self.pushButton.setObjectName(u"pushButton")
self.gridLayout_2.addWidget(self.pushButton, 1, 0, 1, 1)
self.pushButton_2 = QPushButton(Form)
self.pushButton_2.setObjectName(u"pushButton_2")
self.gridLayout_2.addWidget(self.pushButton_2, 1, 1, 1, 1)
self.retranslateUi(Form)
QMetaObject.connectSlotsByName(Form)
# setupUi
def retranslateUi(self, Form):
Form.setWindowTitle(QCoreApplication.translate("Form", u"Form", None))
self.label.setText(QCoreApplication.translate("Form", u"\u0412\u044b \u0443\u0432\u0435\u0440\u0435\u043d\u044b?", None))
self.pushButton.setText(QCoreApplication.translate("Form", u"\u0414\u0430", None))
self.pushButton_2.setText(QCoreApplication.translate("Form", u"\u041d\u0435\u0442", None))
# retranslateUi
class Widget(QWidget, Ui_Form): # пример виджета
def __init__(self):
super(Widget, self).__init__()
self.setupUi(self)
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
if not MainWindow.objectName():
MainWindow.setObjectName(u"MainWindow")
MainWindow.resize(808, 510)
self.centralwidget = QWidget(MainWindow)
self.centralwidget.setObjectName(u"centralwidget")
self.gridLayout = QGridLayout(self.centralwidget)
self.gridLayout.setObjectName(u"gridLayout")
self.frame = QFrame(self.centralwidget)
self.frame.setObjectName(u"frame")
self.frame.setFrameShape(QFrame.StyledPanel)
self.frame.setFrameShadow(QFrame.Raised)
self.image_label = QLabel(alignment=Qt.AlignCenter)
self.image_label.setObjectName(u"image_label")
self.image_label.setPixmap(QPixmap("head3.png"))
lay = QVBoxLayout(self.frame)
lay.addWidget(self.image_label)
self.widget = QWidget(self.image_label)
self.widget.setObjectName(u"widget")
# +++ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
self.formLayout = QFormLayout(self.widget) # - (self.frame)
self.formLayout.setObjectName(u"formLayout")
self.pushButton = QPushButton() # - (self.frame)
self.pushButton.setObjectName(u"pushButton")
self.pushButton.setMinimumSize(QSize(50, 30))
self.pushButton.setMaximumSize(QSize(16777214, 16777215))
self.formLayout.setWidget(1, QFormLayout.LabelRole, self.pushButton)
self.verticalSpacer = QSpacerItem(20, 250, QSizePolicy.Minimum, QSizePolicy.Fixed)
self.formLayout.setItem(0, QFormLayout.LabelRole, self.verticalSpacer)
self.gridLayout.addWidget(self.frame, 1, 0, 1, 1)
MainWindow.setCentralWidget(self.centralwidget)
self.retranslateUi(MainWindow)
QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
MainWindow.setWindowTitle(QCoreApplication.translate("MainWindow", u"MainWindow", None))
self.pushButton.setText(QCoreApplication.translate("MainWindow", u"Test", None))
class MainWindow(QMainWindow, Ui_MainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.setMouseTracking(True)
self.setupUi(self)
Stylesheet = """
#centralwidget {
background-color: rgb(37, 237, 37);
}
#frame {
background-color: rgb(37, 37, 237);
}
#pushButton {
background-color: rgba(233, 33, 33, 0.7);
color: #bfbfbf;
}
#image_label {
background-color: rgb(137, 137, 237);
}
"""
if __name__ == "__main__":
app = QtWidgets.QApplication([])
app.setStyleSheet(Stylesheet) # +++
window = MainWindow()
window.show()
sys.exit(app.exec_())
我不确定我是否正确理解了您想要做什么。
QDialog类是对话框的基类。
更新
您标记我的答案不是为了勤奋，而是因为我的答案现在或稍后对您有用。
我不确定我是否正确理解了您想要做什么，在我看来，我们已经讨论过这个问题。像这样试试。