使用PyQt和Qt设计器ui文件
使用PyQt和Qt设计器ui文件
提问于 2018-12-11 01:02:31
我是PyQt的新手，我正在尝试直接从我的PyQt脚本中使用ui文件。我有两个ui文件，mainwindow.ui和landing.ui。单击主窗口上的“pushButton”按钮应打开着陆窗口。但是，单击按钮不能正常工作。这是代码（我只是试图解决问题，所以代码非常粗糙）：
from PyQt4 import QtCore, uic
from PyQt4 import QtGui
import os
CURR = os.path.abspath(os.path.dirname('__file__'))
form_class = uic.loadUiType(os.path.join(CURR, "mainwindow.ui"))[0]
landing_class = uic.loadUiType(os.path.join(CURR, "landing.ui"))[0]
def loadUiWidget(uifilename, parent=None):
uifile = QtCore.QFile(uifilename)
uifile.open(QtCore.QFile.ReadOnly)
ui = uic.loadUi(uifilename)
uifile.close()
return ui
@QtCore.pyqtSlot()
def clicked_slot():
"""this is called when login button is clicked"""
LandingPage = loadUiWidget(os.path.join(CURR, "landing.ui"))
center(LandingPage)
icon(LandingPage)
LandingPage.show()
class MyWindow(QtGui.QMainWindow, form_class):
def __init__(self, parent=None):
QtGui.QMainWindow.__init__(self, parent)
self.setupUi(self)
self.pushButton.clicked.connect(clicked_slot)
class LandingPage(QtGui.QMainWindow, landing_class):
def __init__(self, parent=None):
QtGui.QMainWindow.__init__(self, parent)
self.setupUi(self)
def center(self):
""" Function to center the application
"""
qRect = self.frameGeometry()
centerPoint = QtGui.QDesktopWidget().availableGeometry().center()
qRect.moveCenter(centerPoint)
self.move(qRect.topLeft())
def icon(self):
""" Function to set window icon
"""
appIcon = QtGui.QIcon("icon.png")
self.setWindowIcon(appIcon)
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
pixmap = QtGui.QPixmap(os.path.join(CURR, "splash.png"))
splash = QtGui.QSplashScreen(pixmap)
splash.show()
app.processEvents()
MainWindow = MyWindow(None)
center(MainWindow)
icon(MainWindow)
MainWindow.show()
splash.finish(MainWindow)
sys.exit(app.exec_())
我哪里出错了？
回答 1
Stack Overflow用户
发布于 2018-12-11 10:49:17
您的脚本有两个主要问题：首先，您没有正确构建ui文件的路径; 第二，你没有保留对登陆页面窗口的引用（因此它会在显示后立即被垃圾收集）。
以下是如何构建加载ui文件的脚本部分：
import os
from PyQt4 import QtCore, QtGui, uic
# get the directory of this script
path = os.path.dirname(os.path.abspath(__file__))
MainWindowUI, MainWindowBase = uic.loadUiType(
os.path.join(path, 'mainwindow.ui'))
LandingPageUI, LandingPageBase = uic.loadUiType(
os.path.join(path, 'landing.ui'))
class MainWindow(MainWindowBase, MainWindowUI):
def __init__(self, parent=None):
MainWindowBase.__init__(self, parent)
self.setupUi(self)
self.pushButton.clicked.connect(self.handleButton)
def handleButton(self):
# keep a reference to the landing page
self.landing = LandingPage()
self.landing.show()
class LandingPage(LandingPageBase, LandingPageUI):
def __init__(self, parent=None):
LandingPageBase.__init__(self, parent)
self.setupUi(self)
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/-100006249
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