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窗體間傳值網上有好多方法，比如新建文件，先將子類窗體的數據傳到文件中，父窗體讀取文件、 ?Signal&Slot機制進行傳值 等等

在這里，我們就舉個采用apply方法：Signal&Slot的例子

不必多說，三個文件搞定一切！

parent.ui:

1 <?xml version="1.0" encoding="UTF-8"?> 2 <ui version="4.0"> 3 <class>MainWindow</class> 4 <widget class="QMainWindow" name="MainWindow"> 5 <property name="geometry"> 6 <rect> 7 <x>0</x> 8 <y>0</y> 9 <width>339</width> 10 <height>201</height> 11 </rect> 12 </property> 13 <property name="windowTitle"> 14 <string>MainWindow</string> 15 </property> 16 <widget class="QWidget" name="centralwidget"> 17 <widget class="QPushButton" name="BtnOpenC"> 18 <property name="geometry"> 19 <rect> 20 <x>250</x> 21 <y>150</y> 22 <width>75</width> 23 <height>23</height> 24 </rect> 25 </property> 26 <property name="text"> 27 <string>子窗體</string> 28 </property> 29 </widget> 30 <widget class="QTextEdit" name="textEdit"> 31 <property name="geometry"> 32 <rect> 33 <x>20</x> 34 <y>20</y> 35 <width>301</width> 36 <height>91</height> 37 </rect> 38 </property> 39 </widget> 40 </widget> 41 </widget> 42 <resources/> 43 <connections/> 44 </ui>

child.ui:

<?xml version="1.0" encoding="UTF-8"?> <ui version="4.0"><class>Dialog</class><widget class="QDialog" name="Dialog"><property name="geometry"><rect><x>0</x><y>0</y><width>339</width><height>182</height></rect></property><property name="windowTitle"><string>Dialog</string></property><widget class="QLineEdit" name="lineEdit"><property name="geometry"><rect><x>100</x><y>50</y><width>221</width><height>20</height></rect></property></widget><widget class="QLabel" name="label"><property name="geometry"><rect><x>20</x><y>50</y><width>54</width><height>21</height></rect></property><property name="text"><string>Data：</string></property></widget><widget class="QPushButton" name="pushButtonOK"><property name="geometry"><rect><x>150</x><y>140</y><width>75</width><height>23</height></rect></property><property name="text"><string>Ok</string></property></widget><widget class="QPushButton" name="pushButtonCancel"><property name="geometry"><rect><x>240</x><y>140</y><width>75</width><height>23</height></rect></property><property name="text"><string>Cancel</string></property></widget></widget><resources/><connections/> </ui>

分別轉換為py

parent.py:

1 # -*- coding: utf-8 -*- 2 3 # Form implementation generated from reading ui file 'parent.ui' 4 # 5 # Created: Wed Mar 25 16:14:25 2015 6 # by: PyQt4 UI code generator 4.10.3 7 # 8 # WARNING! All changes made in this file will be lost! 9 10 from PyQt4 import QtCore, QtGui 11 12 try: 13 _fromUtf8 = QtCore.QString.fromUtf8 14 except AttributeError: 15 def _fromUtf8(s): 16 return s 17 18 try: 19 _encoding = QtGui.QApplication.UnicodeUTF8 20 def _translate(context, text, disambig): 21 return QtGui.QApplication.translate(context, text, disambig, _encoding) 22 except AttributeError: 23 def _translate(context, text, disambig): 24 return QtGui.QApplication.translate(context, text, disambig) 25 26 class Ui_MainWindow(object): 27 def setupUi(self, MainWindow): 28 MainWindow.setObjectName(_fromUtf8("MainWindow")) 29 MainWindow.resize(339, 201) 30 self.centralwidget = QtGui.QWidget(MainWindow) 31 self.centralwidget.setObjectName(_fromUtf8("centralwidget")) 32 self.BtnOpenC = QtGui.QPushButton(self.centralwidget) 33 self.BtnOpenC.setGeometry(QtCore.QRect(250, 150, 75, 23)) 34 self.BtnOpenC.setObjectName(_fromUtf8("BtnOpenC")) 35 self.textEdit = QtGui.QTextEdit(self.centralwidget) 36 self.textEdit.setGeometry(QtCore.QRect(20, 20, 301, 91)) 37 self.textEdit.setObjectName(_fromUtf8("textEdit")) 38 MainWindow.setCentralWidget(self.centralwidget) 39 40 self.retranslateUi(MainWindow) 41 QtCore.QMetaObject.connectSlotsByName(MainWindow) 42 43 def retranslateUi(self, MainWindow): 44 MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow", None)) 45 self.BtnOpenC.setText(_translate("MainWindow", "子窗體", None)) 46 47 48 if __name__ == "__main__": 49 import sys 50 app = QtGui.QApplication(sys.argv) 51 MainWindow = QtGui.QMainWindow() 52 ui = Ui_MainWindow() 53 ui.setupUi(MainWindow) 54 MainWindow.show() 55 sys.exit(app.exec_())

child.py:

1 # -*- coding: utf-8 -*- 2 3 # Form implementation generated from reading ui file 'child.ui' 4 # 5 # Created: Wed Mar 25 16:14:29 2015 6 # by: PyQt4 UI code generator 4.10.3 7 # 8 # WARNING! All changes made in this file will be lost! 9 10 from PyQt4 import QtCore, QtGui 11 12 try: 13 _fromUtf8 = QtCore.QString.fromUtf8 14 except AttributeError: 15 def _fromUtf8(s): 16 return s 17 18 try: 19 _encoding = QtGui.QApplication.UnicodeUTF8 20 def _translate(context, text, disambig): 21 return QtGui.QApplication.translate(context, text, disambig, _encoding) 22 except AttributeError: 23 def _translate(context, text, disambig): 24 return QtGui.QApplication.translate(context, text, disambig) 25 26 class Ui_Dialog(object): 27 def setupUi(self, Dialog): 28 Dialog.setObjectName(_fromUtf8("Dialog")) 29 Dialog.resize(339, 182) 30 self.lineEdit = QtGui.QLineEdit(Dialog) 31 self.lineEdit.setGeometry(QtCore.QRect(100, 50, 221, 20)) 32 self.lineEdit.setObjectName(_fromUtf8("lineEdit")) 33 self.label = QtGui.QLabel(Dialog) 34 self.label.setGeometry(QtCore.QRect(20, 50, 54, 21)) 35 self.label.setObjectName(_fromUtf8("label")) 36 self.pushButtonOK = QtGui.QPushButton(Dialog) 37 self.pushButtonOK.setGeometry(QtCore.QRect(150, 140, 75, 23)) 38 self.pushButtonOK.setObjectName(_fromUtf8("pushButtonOK")) 39 self.pushButtonCancel = QtGui.QPushButton(Dialog) 40 self.pushButtonCancel.setGeometry(QtCore.QRect(240, 140, 75, 23)) 41 self.pushButtonCancel.setObjectName(_fromUtf8("pushButtonCancel")) 42 43 self.retranslateUi(Dialog) 44 QtCore.QMetaObject.connectSlotsByName(Dialog) 45 46 def retranslateUi(self, Dialog): 47 Dialog.setWindowTitle(_translate("Dialog", "Dialog", None)) 48 self.label.setText(_translate("Dialog", "Data：", None)) 49 self.pushButtonOK.setText(_translate("Dialog", "Ok", None)) 50 self.pushButtonCancel.setText(_translate("Dialog", "Cancel", None)) 51 52 53 if __name__ == "__main__": 54 import sys 55 app = QtGui.QApplication(sys.argv) 56 Dialog = QtGui.QDialog() 57 ui = Ui_Dialog() 58 ui.setupUi(Dialog) 59 Dialog.show() 60 sys.exit(app.exec_())

新建MainPvalue.py 文件，代碼如下：

1 # -*- coding: UTF8 -*- 2 3 from PyQt4 import QtCore, QtGui 4 from parent import Ui_MainWindow 5 from child import Ui_Dialog 6 import sys 7 from PyQt4.QtGui import * 8 9 class MainClass(QtGui.QMainWindow): 10 def __init__(self, parent=None): 11 super(MainClass, self).__init__(parent) 12 self.Ui = Ui_MainWindow() 13 self.Ui.setupUi(self) 14 self.setFixedSize(self.width(), self.height()) 15 16 17 self.Ui.BtnOpenC.clicked.connect(self.Child) 18 19 # 打開子窗體 20 def Child(self): 21 self.WChild = Ui_Dialog() 22 self.Dialog = QtGui.QDialog(self) # 不加self 不在父窗體中， 有兩個任務欄 。 加self 表示在父子在窗體中在一個任務欄 23 24 self.WChild.setupUi(self.Dialog) 25 26 self.WChild.pushButtonOK.clicked.connect(self.GetLine) 27 self.WChild.pushButtonCancel.clicked.connect(self.APPclose) 28 self.Dialog.exec_() 29 # 獲取 彈框中填寫的數據 30 def GetLine(self): 31 LineData=self.WChild.lineEdit.text() 32 self.Ui.textEdit.setText(LineData) 33 self.Dialog.close() 34 # 關閉當前彈框 35 def APPclose(self): 36 self.Dialog.close() 37 38 39 40 if __name__ == '__main__': 41 app = QtGui.QApplication(sys.argv) 42 MainApp = MainClass() 43 MainApp.show() 44 sys.exit(app.exec_())

運行MainPvalue.py

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在父窗口定義一個子窗口的接口

self.child=None
然后實例子窗口賦給self.child 傳遞一個callback 函數

class MainForm(QDialog):def __init__(self, parent=None):super(MainForm, self).__init__(parent)self.child = Noneself.table = QTableWidget()self.table.setColumnCount(40)self.table.setRowCount(30)# set Column tab title#self.table.setHorizontalHeaderLabels(list(range(5,10)))for i in range(0, 5):for x in range(0, 7):item = QTableWidgetItem(str(i + x))item.setTextAlignment(Qt.AlignLeft | Qt.AlignCenter)item.setBackgroundColor(Qt.green)self.table.setItem(x, i, item)lbutton = QPushButton("&L")Vlayout = QHBoxLayout()Vlayout.addWidget(lbutton)Hlayout = QVBoxLayout()Hlayout.addWidget(self.table)Hlayout.addLayout(Vlayout)self.setLayout(Hlayout)self.resize(400,300)self.setWindowTitle("Table")self.connect(lbutton, SIGNAL("clicked()"), self.liveChange)def callback(self, c=0, r=0):print('c=' + str(c) + 'r=' + str(r))self.table.clear()for i in range(0, c):for x in range(0, r):item = QTableWidgetItem(str(i + x))item.setTextAlignment(Qt.AlignLeft | Qt.AlignCenter)item.setBackgroundColor(Qt.red)self.table.setItem(x, i, item)def liveChange(self):if self.child == None:self.child = liveDialog(self.callback, self) # self表示屬于父類，LiveDialog繼承父類 self.child.show()self.child.raise_()self.child.activateWindow()class liveDialog(QDialog):def __init__(self, callback, parent=None):super(liveDialog, self).__init__(parent)self.callback = callbackself.c_edit = QLineEdit()self.r_edit = QLineEdit()layout = QHBoxLayout()layout.addWidget(self.c_edit)layout.addWidget(self.r_edit)self.setLayout(layout)self.connect(self.c_edit, SIGNAL("textChanged(QString)"), self.updateUi)self.connect(self.r_edit, SIGNAL("textEdited(QString)"), self.updateUi)def updateUi(self, text):c = self.c_edit.text()r = self.r_edit.text()if c and r:self.callback(int(c), int(r))if __name__ == "__main__":app = QApplication(sys.argv)mf = MainForm()mf.show()app.exec_()

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惡搞彈框

顧名思義就是父類彈層若干個子窗體，將整個屏幕占滿

clown.ui：

1 <?xml version="1.0" encoding="UTF-8"?> 2 <ui version="4.0"> 3 <class>Dialog</class> 4 <widget class="QDialog" name="Dialog"> 5 <property name="geometry"> 6 <rect> 7 <x>0</x> 8 <y>0</y> 9 <width>313</width> 10 <height>163</height> 11 </rect> 12 </property> 13 <property name="windowTitle"> 14 <string>Dialog</string> 15 </property> 16 <layout class="QVBoxLayout" name="verticalLayout"> 17 <item> 18 <layout class="QGridLayout" name="gridLayout"> 19 <item row="0" column="0"> 20 <widget class="QPushButton" name="pushButton"> 21 <property name="text"> 22 <string>選擇</string> 23 </property> 24 </widget> 25 </item> 26 <item row="1" column="0"> 27 <widget class="QPushButton" name="pushButton_2"> 28 <property name="text"> 29 <string>查看</string> 30 </property> 31 </widget> 32 </item> 33 <item row="2" column="0"> 34 <widget class="QPushButton" name="pushButton_3"> 35 <property name="text"> 36 <string>獨立彈出任務欄</string> 37 </property> 38 </widget> 39 </item> 40 </layout> 41 </item> 42 </layout> 43 </widget> 44 <resources/> 45 <connections/> 46 </ui>

轉換為py

clown.py：

1 # -*- coding: utf-8 -*- 2 3 # Form implementation generated from reading ui file 'clown.ui' 4 # 5 # Created: Wed Mar 18 15:17:11 2015 6 # by: PyQt4 UI code generator 4.10.3 7 # 8 # WARNING! All changes made in this file will be lost! 9 10 from PyQt4 import QtCore, QtGui 11 12 try: 13 _fromUtf8 = QtCore.QString.fromUtf8 14 except AttributeError: 15 def _fromUtf8(s): 16 return s 17 18 try: 19 _encoding = QtGui.QApplication.UnicodeUTF8 20 def _translate(context, text, disambig): 21 return QtGui.QApplication.translate(context, text, disambig, _encoding) 22 except AttributeError: 23 def _translate(context, text, disambig): 24 return QtGui.QApplication.translate(context, text, disambig) 25 26 class Ui_Dialog(object): 27 def setupUi(self, Dialog): 28 Dialog.setObjectName(_fromUtf8("Dialog")) 29 Dialog.resize(313, 163) 30 self.verticalLayout = QtGui.QVBoxLayout(Dialog) 31 self.verticalLayout.setObjectName(_fromUtf8("verticalLayout")) 32 self.gridLayout = QtGui.QGridLayout() 33 self.gridLayout.setObjectName(_fromUtf8("gridLayout")) 34 self.pushButton = QtGui.QPushButton(Dialog) 35 self.pushButton.setObjectName(_fromUtf8("pushButton")) 36 self.gridLayout.addWidget(self.pushButton, 0, 0, 1, 1) 37 self.pushButton_2 = QtGui.QPushButton(Dialog) 38 self.pushButton_2.setObjectName(_fromUtf8("pushButton_2")) 39 self.gridLayout.addWidget(self.pushButton_2, 1, 0, 1, 1) 40 self.pushButton_3 = QtGui.QPushButton(Dialog) 41 self.pushButton_3.setObjectName(_fromUtf8("pushButton_3")) 42 self.gridLayout.addWidget(self.pushButton_3, 2, 0, 1, 1) 43 self.verticalLayout.addLayout(self.gridLayout) 44 45 self.retranslateUi(Dialog) 46 QtCore.QMetaObject.connectSlotsByName(Dialog) 47 48 def retranslateUi(self, Dialog): 49 Dialog.setWindowTitle(_translate("Dialog", "Dialog", None)) 50 self.pushButton.setText(_translate("Dialog", "選擇", None)) 51 self.pushButton_2.setText(_translate("Dialog", "查看", None)) 52 self.pushButton_3.setText(_translate("Dialog", "獨立彈出任務欄", None)) 53 54 55 if __name__ == "__main__": 56 import sys 57 app = QtGui.QApplication(sys.argv) 58 Dialog = QtGui.QDialog() 59 ui = Ui_Dialog() 60 ui.setupUi(Dialog) 61 Dialog.show() 62 sys.exit(app.exec_())

邏輯頁面MainClown.py：

1 # -*- coding: UTF8 -*- 2 3 from PyQt4 import QtCore, QtGui 4 from clown import Ui_Dialog 5 import sys 6 from PyQt4.QtGui import * 7 import ClownRcc 8 import random 9 10 class MainClown(QtGui.QWidget): 11 def __init__(self, parent=None): 12 super(MainClown, self).__init__(parent) 13 self.Ui = Ui_Dialog() 14 self.Ui.setupUi(self) 15 self.setWindowIcon(QtGui.QIcon(':safe.ico')) 16 self.Ui.pushButton.clicked.connect(self.clickDig) 17 self.Ui.pushButton_2.clicked.connect(self.multDig) 18 self.Ui.pushButton_3.clicked.connect(self.taskDig) 19 20 # 循環alert #--- 一個任務欄，一個dialog 21 def clickDig(self): 22 self.a=Icon(self) 23 self.a.setWindowFlags(QtCore.Qt.Window) 24 dictmsg = {1:u'海闊天空',2:u'心存夢想',3:u'勇往直前'} 25 for i in range(0, 5): 26 x = random.randint(100, 600) 27 y = random.randint(100, 600) 28 iskey = dictmsg.has_key(i) 29 if not iskey: 30 msg = u'確定要打開嗎？' 31 else: 32 msg = dictmsg[i] 33 34 OK = QtGui.QMessageBox.question(self, (u'提示'),(msg),QtGui.QMessageBox.Yes , QtGui.QMessageBox.No) 35 if OK == QtGui.QMessageBox.No: 36 return False 37 self.a.move(x, y) 38 self.a.show() # pos = self.previewWindow.pos() 隨機self.previewWindow.move(pos) 到pos上 pos.setX(0) pos.setY(0) 39 40 41 42 # 彈出另外一個任務欄 #--- 兩個任務欄 關閉父窗體 子窗體不關閉 43 def taskDig(self): 44 self.b = Icon() 45 self.b.move(500, 600) 46 self.b.show() 47 48 self.d = Icon() 49 self.d.move(600,700) 50 self.d.show() 51 52 53 # 惡搞 #--- 多個任務欄 關閉父窗體 子窗體關閉 依賴于 closeEvent事件 QtCore.QCoreApplication.quit() 54 def multDig(self): 55 screenxy = QtGui.QDesktopWidget().screenGeometry() #計算屏幕分辨率 56 OK = QtGui.QMessageBox.warning(self, (u'提示'),(u'確定要打開嗎？打開會后悔的！'),QtGui.QMessageBox.Yes , QtGui.QMessageBox.No) 57 if OK == QtGui.QMessageBox.Yes: 58 rounds = 30 59 vardict = {} 60 for ii in range(rounds): 61 vardict['a'+str(ii)] = 'a'+str(ii) 62 63 for i in range(rounds): 64 self.adf=Icon() 65 setattr(self, vardict['a'+str(i)], Icon()) #第一個參數是對象，這里的self其實就是test.第二個參數是變量名，第三個是變量值 66 67 x = random.randint(20, screenxy.width()) 68 y = random.randint(20, screenxy.height()) 69 exec("self.a"+str(i)+".move("+str(x)+","+str(y)+")") 70 exec("self.a"+str(i)+".show()") 71 72 73 # 重載關閉按鈕 #--- 繼承closeEvent ==QtCore.QCoreApplication.quit() 多個任務欄 關閉父窗體 子窗體也關閉 74 def closeEvent(self, event): 75 QtCore.QCoreApplication.quit() 76 77 78 79 80 81 82 83 class Icon(QtGui.QDialog): 84 def __init__(self, parent=None): 85 QtGui.QWidget.__init__(self, parent) 86 palette1 = QtGui.QPalette(self) 87 palette1.setBrush(self.backgroundRole(), QtGui.QBrush(QtGui.QPixmap(':bluesky.jpg'))) # 設置背景圖片 88 self.setPalette(palette1) 89 self.setGeometry(300, 300, 250, 150) 90 self.setWindowTitle('Icon') 91 mylayout = QVBoxLayout() 92 self.setLayout(mylayout) 93 94 95 96 97 if __name__ == '__main__': 98 app = QtGui.QApplication(sys.argv) 99 MainApp = MainClown() 100 MainApp.show() 101 sys.exit(app.exec_())

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