QT Designer 窗口未在 Pycharm 中打开

Question

我正在尝试从 QT Designer 将 GUI 导入 Pycharm，但是即使没有错误，我也无法让它打开一个窗口。

我尝试过的两种方法是； 第一：QT Designer 通过“Form>View Python Code”提供“Python”代码，提供以下代码。附带说明；列出的许多要导入的 PySide2 模块显示为灰色，我尝试在包含它们的情况下运行，但在将它们取出后没有成功。

# -*- coding: utf-8 -*-

################################################################################
## Form generated from reading UI file 'untitledxADjFi.ui'
##
## Created by: Qt User Interface Compiler version 5.14.1
##
## WARNING! All changes made in this file will be lost when recompiling UI file!
################################################################################

from PySide2.QtCore import (QCoreApplication, QMetaObject, QObject, QPoint,
    QRect, QSize, QUrl, Qt)
from PySide2.QtGui import (QBrush, QColor, QConicalGradient, QCursor, QFont,
    QFontDatabase, QIcon, QLinearGradient, QPalette, QPainter, QPixmap,
    QRadialGradient)
from PySide2.QtWidgets import *


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        if MainWindow.objectName():
            MainWindow.setObjectName(u"MainWindow")
        MainWindow.resize(1107, 899)
        self.centralwidget = QWidget(MainWindow)
        self.centralwidget.setObjectName(u"centralwidget")
        self.textEdit = QTextEdit(self.centralwidget)
        self.textEdit.setObjectName(u"textEdit")
        self.textEdit.setGeometry(QRect(10, 340, 381, 501))
        self.textBrowser = QTextBrowser(self.centralwidget)
        self.textBrowser.setObjectName(u"textBrowser")
        self.textBrowser.setGeometry(QRect(420, 340, 331, 501))
        self.textBrowser_2 = QTextBrowser(self.centralwidget)
        self.textBrowser_2.setObjectName(u"textBrowser_2")
        self.textBrowser_2.setGeometry(QRect(780, 340, 311, 501))
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QMenuBar(MainWindow)
        self.menubar.setObjectName(u"menubar")
        self.menubar.setGeometry(QRect(0, 0, 1107, 22))
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QStatusBar(MainWindow)
        self.statusbar.setObjectName(u"statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)

        QMetaObject.connectSlotsByName(MainWindow)
    # setupUi

    def retranslateUi(self, MainWindow):
        MainWindow.setWindowTitle(QCoreApplication.translate("MainWindow", u"MainWindow", None))
    # retranslateUi

第二次：通过 Pycharm，我可以使用 PyUIC 的外部工具让它创建一个带有以下代码的 .py 文件的副本。

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'untitled.ui'
#
# Created by: PyQt5 UI code generator 5.15.2
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(1107, 899)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
        self.textEdit.setGeometry(QtCore.QRect(10, 340, 381, 501))
        self.textEdit.setObjectName("textEdit")
        self.textBrowser = QtWidgets.QTextBrowser(self.centralwidget)
        self.textBrowser.setGeometry(QtCore.QRect(420, 340, 331, 501))
        self.textBrowser.setObjectName("textBrowser")
        self.textBrowser_2 = QtWidgets.QTextBrowser(self.centralwidget)
        self.textBrowser_2.setGeometry(QtCore.QRect(780, 340, 311, 501))
        self.textBrowser_2.setObjectName("textBrowser_2")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 1107, 22))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))

正如我上面所说，这两个都以Process finished with exit code 0 的结果运行。有什么建议吗？

Answer 1

您需要启动应用程序。目前，您只是在定义它的外观。 类中的方法永远不会被调用。

也许这段代码可以帮助你：（复制自：https://pythonbasics.org/qt-designer-python/） helloworld 是 ui 文件的名称。这段代码在一个新文件中。

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QApplication
import sys
import helloworld

class ExampleApp(QtWidgets.QMainWindow, helloworld.Ui_MainWindow):
    def __init__(self, parent=None):
        super(ExampleApp, self).__init__(parent)
        self.setupUi(self)

def main():
    app = QApplication(sys.argv)
    form = ExampleApp()
    form.show()
    app.exec_()

if __name__ == '__main__':
    main()