我无法使用在 Qt Designer 中创建的自定义对话框。我知道如何弹出对话框，但我无法从该行文本中获取数据。
main program.py
from PyQt5 import QtCore, QtGui, QtWidgets
from ui import Ui_MainWindow
from addui import Ui_Dialog as Form
from bs4 import BeautifulSoup
import requests
import time
import sys
class MainDialog(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self):
super(self.__class__, self).__init__()
self.setupUi(self)
self.actionRefresh.triggered.connect(self.refresh_btn)
self.actionAdd.triggered.connect(self.add_btn)
self.actionRemove.triggered.connect(self.remove_btn)
self.actionSettings.triggered.connect(self.settings_btn)
self.actionAbout.triggered.connect(self.about_btn)
self.actionExit.triggered.connect(self.exit_btn)
def open_dialog(self):
dialog = QtWidgets.QDialog()
dialog.ui = Form()
dialog.ui.setupUi(dialog)
dialog.exec_()
dialog.show()
def refresh_btn(self):
print('Refresh')
self.getting_data()
def add_btn(self):
print('Add')
self.open_dialog()
def remove_btn(self):
print('Remove')
def settings_btn(self):
print('Settings')
QtWidgets.QMessageBox.warning(self, 'Settings',
'Work in progress.\n'
' Coming soon!')
def about_btn(self):
print('About')
QtWidgets.QMessageBox.about(self, 'About Checking Prices',
'Checking Prices - Beta v1.0\n'
'\n'
'Copyright(c) 2015 - Pifu Valentin')
def exit_btn(self):
self.close()
def getting_data(self):
links = ['link1',
'link2',
'link3'
]
self.statusBar.showMessage('Getting data...')
try:
for nr, link in enumerate(links, start=1):
cont = requests.get(link)
soup = BeautifulSoup(cont.content, "html.parser")
title = soup.title.text[:40]
price = soup.find('span', {'itemprop': 'price'}).text
linetxt = ('{}. {} >> ${}').format(nr, title, price)
if nr == 1:
self.linetxt1.setText(linetxt)
elif nr == 2:
self.linetxt2.setText(linetxt)
elif nr == 3:
self.linetxt3.setText(linetxt)
self.statusBar.showMessage('Last updated - '+time.strftime('%H:%M:%S'))
except:
self.statusBar.showMessage('Error getting data.')
def main():
app = QtWidgets.QApplication(sys.argv)
form = MainDialog()
form.show()
app.exec_()
if __name__ == '__main__':
main()
addui.py (dialog)
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(200, 71)
Dialog.setMinimumSize(QtCore.QSize(200, 71))
Dialog.setMaximumSize(QtCore.QSize(200, 71))
Dialog.setContextMenuPolicy(QtCore.Qt.NoContextMenu)
icon = QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap("Icons/Plus-32.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
Dialog.setWindowIcon(icon)
self.gridLayout = QtWidgets.QGridLayout(Dialog)
self.gridLayout.setObjectName("gridLayout")
self.text_link = QtWidgets.QLineEdit(Dialog)
self.text_link.setObjectName("text_link")
self.gridLayout.addWidget(self.text_link, 0, 0, 1, 2)
self.add_link = QtWidgets.QPushButton(Dialog)
self.add_link.setObjectName("add_link")
self.gridLayout.addWidget(self.add_link, 1, 0, 1, 1)
self.cancel_link = QtWidgets.QPushButton(Dialog)
self.cancel_link.setObjectName("cancel_link")
self.gridLayout.addWidget(self.cancel_link, 1, 1, 1, 1)
self.retranslateUi(Dialog)
self.cancel_link.clicked.connect(self.exit_dialog)
self.add_link.clicked.connect(self.get_link)
def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
Dialog.setWindowTitle(_translate("Dialog", "Add link"))
self.add_link.setText(_translate("Dialog", "Add"))
self.cancel_link.setText(_translate("Dialog", "Cancel"))
def get_link(self):
print(self.text_link.text())
x = self.text_link.text()
return x
def exit_dialog(self):
self.destroy()
我对这个程序有一些问题。
如果我单击取消仅退出对话框而不是主程序。 (我试过 self.close、self.hide...)
我想在该 line_text 上添加一个链接并将该链接获取到主程序，但是当我单击“添加”以关闭对话框并将数据传递到主程序时。
我如何调用对话框？
def open_dialog(self): dialog = QtWidgets.QDialog() dialog.ui = Form() dialog.ui.setupUi(dialog) dialog.exec_() dialog.show()
谢谢。我不明白我该怎么做，希望有人能帮忙。 再次感谢。
最佳答案
您需要 exec_() 来执行此操作，这是您的代码的最小版本，已修复 从 PyQt4 导入 QtCore、QtGui 导入系统
class PopUpDLG(QtGui.QDialog):
def __init__(self):
super(PopUpDLG, self).__init__()
self.setObjectName("self")
self.resize(200, 71)
self.setMinimumSize(QtCore.QSize(200, 71))
self.setMaximumSize(QtCore.QSize(200, 71))
self.setContextMenuPolicy(QtCore.Qt.NoContextMenu)
icon = QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap("Icons/Plus-32.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
self.setWindowIcon(icon)
self.gridLayout = QtGui.QGridLayout(self)
self.gridLayout.setObjectName("gridLayout")
self.text_link = QtGui.QLineEdit(self)
self.text_link.setObjectName("text_link")
self.gridLayout.addWidget(self.text_link, 0, 0, 1, 2)
self.add_link = QtGui.QPushButton(self)
self.add_link.setObjectName("add_link")
self.gridLayout.addWidget(self.add_link, 1, 0, 1, 1)
self.cancel_link = QtGui.QPushButton(self)
self.cancel_link.setObjectName("cancel_link")
self.gridLayout.addWidget(self.cancel_link, 1, 1, 1, 1)
self.retranslateUi(self)
self.cancel_link.clicked.connect(self.reject)
self.add_link.clicked.connect(self.get_link)
self.retrunVal = None
def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
self.setWindowTitle(_translate("Dialog", "Add link"))
self.add_link.setText(_translate("Dialog", "Add"))
self.cancel_link.setText(_translate("Dialog", "Cancel"))
def get_link(self):
self.retrunVal = self.text_link.text()
self.accept()
def exec_(self):
super(PopUpDLG, self).exec_()
return self.retrunVal
class MainDialog(QtGui.QMainWindow):
def __init__(self):
super(self.__class__, self).__init__()
centralwidget = QtGui.QWidget(self)
self.layout = QtGui.QHBoxLayout(centralwidget)
self.button = QtGui.QPushButton("Open")
self.valText = QtGui.QLabel("")
self.layout.addWidget(self.button)
self.layout.addWidget(self.valText)
self.setCentralWidget(centralwidget)
self.button.clicked.connect(self.open_dialog)
def open_dialog(self):
dialog = PopUpDLG()
value = dialog.exec_()
if value:
self.valText.setText(value)
def main():
app = QtGui.QApplication(sys.argv)
form = MainDialog()
form.show()
app.exec_()
if __name__ == '__main__':
main()
关于python - 关闭并从自定义对话框 PyQT5 中获取数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33945911/