qtdesigner转python_将Qt Designer的ui文件转换为PySide2使用的.py文件

20201206修订：在Pyside2的5.15.2版本中，从ui生成py文件过程，命令从“uic”变为“pyside2-uic”

Qt Designer 设计的ui文件，就是一个xml文件，通过pyside-uic可以转换成标准的.py文件 。通过QtDesigner创建的ui如图：

我们切入正题：

1：首先要保证将pyside2-uic.exe加到环境变量Path中。根据我的Python，PySide2安装路径。设置具体如下图：

                      

2：使用PySide2中的QtDesigner工具创建具体的ui文件。QtDesigner路径如下：

3：将创建的ui文件使用命令生成对应的.py文件。先从系统的cmd进入到ui文件的位置，然后输入命令：

pyside2-uic ****.ui -o ****.py

进行文件转换。注：PySide2 5.15.2版本中“pyside2-uic”变为“uic”，但是cmd中的命令uic无效，只能用“pyside2-uic”命令

运行正常。生成的py文件代码如下：

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

# Form implementation generated from reading ui file 'untitled.ui',

# licensing of 'untitled.ui' applies.

#

# Created: Mon May 11 20:42:28 2020

# by: pyside2-uic running on PySide2 5.12.6

#

# WARNING! All changes made in this file will be lost!

from PySide2 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):

def setupUi(self, MainWindow):

MainWindow.setObjectName("MainWindow")

MainWindow.resize(800, 600)

self.centralwidget = QtWidgets.QWidget(MainWindow)

self.centralwidget.setObjectName("centralwidget")

self.widget = QtWidgets.QWidget(self.centralwidget)

self.widget.setGeometry(QtCore.QRect(0, 0, 801, 571))

self.widget.setObjectName("widget")

self.verticalLayout = QtWidgets.QVBoxLayout(self.widget)

self.verticalLayout.setContentsMargins(0, 0, 0, 0)

self.verticalLayout.setObjectName("verticalLayout")

self.horizontalLayout_2 = QtWidgets.QHBoxLayout()

self.horizontalLayout_2.setObjectName("horizontalLayout_2")

self.horizontalLayout = QtWidgets.QHBoxLayout()

self.horizontalLayout.setObjectName("horizontalLayout")

self.pushButton = QtWidgets.QPushButton(self.widget)

self.pushButton.setObjectName("pushButton")

self.horizontalLayout.addWidget(self.pushButton)

self.pushButton_2 = QtWidgets.QPushButton(self.widget)

self.pushButton_2.setObjectName("pushButton_2")

self.horizontalLayout.addWidget(self.pushButton_2)

self.horizontalLayout_2.addLayout(self.horizontalLayout)

self.label = QtWidgets.QLabel(self.widget)

self.label.setObjectName("label")

self.horizontalLayout_2.addWidget(self.label)

self.verticalLayout.addLayout(self.horizontalLayout_2)

self.plainTextEdit = QtWidgets.QPlainTextEdit(self.widget)

self.plainTextEdit.setObjectName("plainTextEdit")

self.verticalLayout.addWidget(self.plainTextEdit)

MainWindow.setCentralWidget(self.centralwidget)

self.menubar = QtWidgets.QMenuBar(MainWindow)

self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 23))

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):

MainWindow.setWindowTitle(QtWidgets.QApplication.translate("MainWindow", "MainWindow", None, -1))

self.pushButton.setText(QtWidgets.QApplication.translate("MainWindow", "PushButton", None, -1))

self.pushButton_2.setText(QtWidgets.QApplication.translate("MainWindow", "PushButton", None, -1))

self.label.setText(QtWidgets.QApplication.translate("MainWindow", "TextLabel", None, -1))

4：然后将生成的.py文件放到具体路径下，通过py进行加载，具体示例代码如下：

import sys

from PySide2.QtWidgets import QApplication

from PySide2.QtWidgets import QMainWindow

from ch06.Untitled import Ui_MainWindow

class LoginForm(QMainWindow):

def __init__(self, parent=None):

QMainWindow.__init__(self, parent)

self.ui = Ui_MainWindow()

self.ui.setupUi(self)

if __name__ == '__main__':

app = QApplication(sys.argv)

form = LoginForm()

form.show()

sys.exit(app.exec_())

运行，结果如下图：