单击时无法关闭窗口
Posted
技术标签:
【中文标题】单击时无法关闭窗口【英文标题】:cant able to close the window when clicked 【发布时间】:2017-06-25 12:32:03 【问题描述】:在 PyQt4 应用程序中单击“确定”按钮时,我无法关闭窗口,我尝试了很多但没有任何效果,我将我的代码发布在下面以供您参考。 请帮帮我...谢谢
在 PyQt4 应用程序中单击“确定”按钮时,我无法关闭窗口,我尝试了很多但没有任何效果,我将我的代码发布在下面以供您参考。 请帮帮我...谢谢
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'GUIAPP.ui'
#
# Created by: PyQt4 UI code generator 4.11.4
#
# WARNING! All changes made in this file will be lost!
from PyQt4 import QtCore, QtGui
from PyQt4.QtGui import QDialog
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
def _fromUtf8(s):
return s
try:
_encoding = QtGui.QApplication.UnicodeUTF8
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig)
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName(_fromUtf8("Dialog"))
Dialog.resize(400, 300)
self.label = QtGui.QLabel(Dialog)
self.label.setGeometry(QtCore.QRect(60, 60, 281, 41))
font = QtGui.QFont()
font.setFamily(_fromUtf8("Times New Roman"))
font.setPointSize(14)
font.setBold(False)
font.setWeight(50)
self.label.setFont(font)
self.label.setLayoutDirection(QtCore.Qt.RightToLeft)
self.label.setIndent(0)
self.label.setObjectName(_fromUtf8("label"))
self.pushButton = QtGui.QPushButton(Dialog)
self.pushButton.setGeometry(QtCore.QRect(80, 170, 81, 21))
self.pushButton.setObjectName(_fromUtf8("pushButton"))
self.pushButton_2 = QtGui.QPushButton(Dialog)
self.pushButton_2.setGeometry(QtCore.QRect(240, 170, 81, 23))
self.pushButton_2.setObjectName(_fromUtf8("pushButton_2"))
self.pushButton_2.clicked.connect(self.closeEvent)
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
Dialog.setWindowTitle(_translate("Dialog", "Dialog", None))
self.label.setText(_translate("Dialog", "DO YOU WANT TO CONTINUE", None))
self.pushButton.setText(_translate("Dialog", "ok", None))
self.pushButton_2.setText(_translate("Dialog", "cancel", None))
def closeEvent(self):
self.close()
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
Dialog = QtGui.QDialog()
ui = Ui_Dialog()
ui.setupUi(Dialog)
Dialog.show()
sys.exit(app.exec_())
【问题讨论】:
【参考方案1】:问题是 Ui_Dialog 不是一个小部件,它是一个填充图形部分的类。您应该通过Dialog.close()
关闭窗口,因为对话框是一个小部件。为此,您可以使用以下内容:
self.pushButton_2.clicked.connect(Dialog.close)
完整代码:
from PyQt4 import QtCore, QtGui
from PyQt4.QtGui import QDialog
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
def _fromUtf8(s):
return s
try:
_encoding = QtGui.QApplication.UnicodeUTF8
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig)
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName(_fromUtf8("Dialog"))
Dialog.resize(400, 300)
self.label = QtGui.QLabel(Dialog)
self.label.setGeometry(QtCore.QRect(60, 60, 281, 41))
font = QtGui.QFont()
font.setFamily(_fromUtf8("Times New Roman"))
font.setPointSize(14)
font.setBold(False)
font.setWeight(50)
self.label.setFont(font)
self.label.setLayoutDirection(QtCore.Qt.RightToLeft)
self.label.setIndent(0)
self.label.setObjectName(_fromUtf8("label"))
self.pushButton = QtGui.QPushButton(Dialog)
self.pushButton.setGeometry(QtCore.QRect(80, 170, 81, 21))
self.pushButton.setObjectName(_fromUtf8("pushButton"))
self.pushButton_2 = QtGui.QPushButton(Dialog)
self.pushButton_2.setGeometry(QtCore.QRect(240, 170, 81, 23))
self.pushButton_2.setObjectName(_fromUtf8("pushButton_2"))
self.pushButton_2.clicked.connect(Dialog.close)
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
Dialog.setWindowTitle(_translate("Dialog", "Dialog", None))
self.label.setText(_translate("Dialog", "DO YOU WANT TO CONTINUE", None))
self.pushButton.setText(_translate("Dialog", "ok", None))
self.pushButton_2.setText(_translate("Dialog", "cancel", None))
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
Dialog = QtGui.QDialog()
ui = Ui_Dialog()
ui.setupUi(Dialog)
Dialog.show()
sys.exit(app.exec_())
另外一种推荐的方式是,除了使用Ui_Dialog作为接口之外,实现逻辑的类并继承自QDialog。
class Dialog(QtGui.QDialog, Ui_Dialog):
def __init__(self, parent=None):
QtGui.QDialog.__init__(self, parent=parent)
self.setupUi(self)
self.pushButton_2.clicked.connect(dialog.close)
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
dialog = Dialog()
sys.exit(app.exec_())
完整代码:
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'GUIAPP.ui'
#
# Created by: PyQt4 UI code generator 4.11.4
#
# WARNING! All changes made in this file will be lost!
from PyQt4 import QtCore, QtGui
from PyQt4.QtGui import QDialog
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
def _fromUtf8(s):
return s
try:
_encoding = QtGui.QApplication.UnicodeUTF8
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig)
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName(_fromUtf8("Dialog"))
Dialog.resize(400, 300)
self.label = QtGui.QLabel(Dialog)
self.label.setGeometry(QtCore.QRect(60, 60, 281, 41))
font = QtGui.QFont()
font.setFamily(_fromUtf8("Times New Roman"))
font.setPointSize(14)
font.setBold(False)
font.setWeight(50)
self.label.setFont(font)
self.label.setLayoutDirection(QtCore.Qt.RightToLeft)
self.label.setIndent(0)
self.label.setObjectName(_fromUtf8("label"))
self.pushButton = QtGui.QPushButton(Dialog)
self.pushButton.setGeometry(QtCore.QRect(80, 170, 81, 21))
self.pushButton.setObjectName(_fromUtf8("pushButton"))
self.pushButton_2 = QtGui.QPushButton(Dialog)
self.pushButton_2.setGeometry(QtCore.QRect(240, 170, 81, 23))
self.pushButton_2.setObjectName(_fromUtf8("pushButton_2"))
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
Dialog.setWindowTitle(_translate("Dialog", "Dialog", None))
self.label.setText(_translate("Dialog", "DO YOU WANT TO CONTINUE", None))
self.pushButton.setText(_translate("Dialog", "ok", None))
self.pushButton_2.setText(_translate("Dialog", "cancel", None))
class Dialog(QtGui.QDialog, Ui_Dialog):
def __init__(self, parent=None):
QtGui.QDialog.__init__(self, parent=parent)
self.setupUi(self)
self.pushButton_2.clicked.connect(dialog.close)
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
dialog = Dialog()
sys.exit(app.exec_())
注意:closeEvent 是在窗口关闭之前运行的方法,在关闭之前分析是否需要覆盖它。
【讨论】:
以上是关于单击时无法关闭窗口的主要内容,如果未能解决你的问题,请参考以下文章