這篇文章主要為大家詳細介紹了PyQT實現多窗口切換的方法，具有一定的參考價值，有興趣的小伙伴們可以參考一下
#最近做個軟體，用PyQT寫的，在實現選單列點擊彈出新視窗的時候嚴重被卡殼，發現用WxPython的想法和方式來做完全無法實現。 PyQT的中文資料實在太少了。看了點英文資料和QT的資料，逆推PyQT的實現方法，總算搞定。下面是一個小demo。
主介面的程式碼如下所示：
#
# -*- coding: utf-8 -*-
from PyQt4 import QtCore, QtGui
from dialog1 import Dialog1
from dialog2 import Dialog2
import sys
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 MainWindow(QtGui.QWidget):
dialog1_signal = QtCore.pyqtSignal() #定义一个无参数的信号，串口设定与子站初始化信号
dialog2_signal = QtCore.pyqtSignal() #定义一个无参数的信号，串口设定与子站初始化信号
exit_signal = QtCore.pyqtSignal() #定义一个无参数的信号，串口设定与子站初始化信号
def __init__(self):
super(MainWindow,self).__init__()
def setupUi(self, Form):
Form.setObjectName(_fromUtf8("Form"))
Form.resize(400, 300)
self.form = Form
self.pushButton = QtGui.QPushButton(Form)
self.pushButton.setGeometry(QtCore.QRect(70, 90, 75, 23))
self.pushButton.setObjectName(_fromUtf8("pushButton"))
self.pushButton_2 = QtGui.QPushButton(Form)
self.pushButton_2.setGeometry(QtCore.QRect(240, 90, 75, 23))
self.pushButton_2.setObjectName(_fromUtf8("pushButton_2"))
self.pushButton_3 = QtGui.QPushButton(Form)
self.pushButton_3.setGeometry(QtCore.QRect(150, 160, 75, 23))
self.pushButton_3.setObjectName(_fromUtf8("pushButton_3"))
self.label = QtGui.QLabel(Form)
self.label.setGeometry(QtCore.QRect(170, 40, 54, 16))
self.label.setObjectName(_fromUtf8("label"))
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
#信号连接到指定槽
self.pushButton.clicked.connect(self.on_pushButton_clicked)
self.pushButton_2.clicked.connect(self.on_pushButton_2_clicked)
self.pushButton_3.clicked.connect(self.on_pushButton_3_clicked)
def retranslateUi(self, Form):
Form.setWindowTitle(_translate("Form", "Form", None))
self.pushButton.setText(_translate("Form", "进入dialog1", None))
self.pushButton_2.setText(_translate("Form", "进入dialog2", None))
self.pushButton_3.setText(_translate("Form", "退出", None))
self.label.setText(_translate("Form", "主窗体", None))
def on_pushButton_clicked(self):
self.form.hide()
Form1 = QtGui.QDialog()
ui = Dialog1()
ui.setupUi(Form1)
Form1.show()
Form1.exec_()
self.form.show()
def on_pushButton_3_clicked(self, Form):
#QtCore.QObject.connect( self.pushButton_3, QtCore.SIGNAL("clicked()"), self, QtCore.SLOT(quit()))
#也可以这样
self.form.close()
def on_pushButton_2_clicked(self):
self.form.close()
Form1 = QtGui.QDialog()
ui = Dialog2()
ui.setupUi(Form1)
Form1.show()
Form1.exec_()
self.form.show()
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
Form = QtGui.QWidget()
window = MainWindow()
window.setupUi(Form)
Form.show()
sys.exit(app.exec_())
pass登入後複製
Dialog1介面的程式碼如下：
# -*- coding: utf-8 -*-
from PyQt4 import QtCore, QtGui
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 Dialog1(QtGui.QWidget):
def setupUi(self, Dialog):
Dialog.setObjectName(_fromUtf8("Dialog"))
Dialog.resize(400, 300)
self.form = Dialog
self.label = QtGui.QLabel(Dialog)
self.label.setGeometry(QtCore.QRect(180, 50, 54, 12))
self.label.setObjectName(_fromUtf8("label"))
self.dialog1_pushButton = QtGui.QPushButton(Dialog)
self.dialog1_pushButton.setGeometry(QtCore.QRect(160, 130, 75, 23))
self.dialog1_pushButton.setObjectName(_fromUtf8("pushButton"))
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
#信号连接到指定槽
self.dialog1_pushButton.clicked.connect(self.on_dialog1_pushButton_clicked)
def retranslateUi(self, Dialog):
Dialog.setWindowTitle(_translate("Dialog", "Dialog", None))
self.label.setText(_translate("Dialog", "dialog1", None))
self.dialog1_pushButton.setText(_translate("Dialog", "返回主窗体", None))
def on_dialog1_pushButton_clicked(self):
self.form.close()
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
Dialog = QtGui.QDialog()
ui = Dialog1()
ui.setupUi(Dialog)
Dialog.show()
sys.exit(app.exec_())
Dialog2界面的代码如下：
[python] view plain copy
# -*- coding: utf-8 -*-
from PyQt4 import QtCore, QtGui
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 Dialog2(object):
def setupUi(self, Dialog):
Dialog.setObjectName(_fromUtf8("Dialog"))
Dialog.resize(400, 300)
self.form = Dialog
self.label = QtGui.QLabel(Dialog)
self.label.setGeometry(QtCore.QRect(180, 60, 54, 12))
self.label.setObjectName(_fromUtf8("label"))
self.pushButton = QtGui.QPushButton(Dialog)
self.pushButton.setGeometry(QtCore.QRect(160, 140, 75, 23))
self.pushButton.setObjectName(_fromUtf8("pushButton"))
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
#信号连接到指定槽
self.pushButton.clicked.connect(self.on_pushButton_clicked)
def retranslateUi(self, Dialog):
Dialog.setWindowTitle(_translate("Dialog", "Dialog", None))
self.label.setText(_translate("Dialog", "dialog2", None))
self.pushButton.setText(_translate("Dialog", "返回主窗体", None))
def on_pushButton_clicked(self):
self.form .close()
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
Dialog = QtGui.QDialog()
ui = Dialog2()
ui.setupUi(Dialog)
Dialog.show()
sys.exit(app.exec_())登入後複製
#按鈕綁定到新彈出介面的處理函數，使用的槽連接方式為：
self.pushButton.clicked.connect(self.on_pushButton_clicked)
登入後複製
#如果是Menu項目綁定到新彈出介面的處理函數，則應使用的槽連接方式為：
QtCore.QObject.connect(self.set_value_menu, QtCore.SIGNAL(_fromUtf8("triggered()")), self.open_set_value_form)登入後複製
#二者所使用的槽處理函數基本上一致。
若不顯示原始介面，只要將原介面hide()即可，如：
若需在彈出新視窗時同時原視窗保持可見，則不需此步驟。且在這種情況下，若要原始視窗可選為頂層窗體，則在顯示新視窗時應使用show()：
##
若新視窗為固定的頂層窗體，原始窗體被遮蓋，則應使用exec_()：
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