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TA贡献1811条经验 获得超4个赞
不要修改 Qt Designer 生成的代码,而是创建另一个从适当的小部件继承的类,并使用初始类来填充它。
while 循环阻塞接口,使用 QTimer 或额外的线程、信号和槽。
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(319, 258)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.checkBox = QtWidgets.QCheckBox(self.centralwidget)
self.checkBox.setGeometry(QtCore.QRect(20, 60, 281, 51))
self.checkBox.setObjectName("checkBox")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 319, 21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.checkBox.setText(_translate("MainWindow", "CheckBox"))
class Demo(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self):
super().__init__()
self.setupUi(self)
self.checkBox.clicked.connect(self.potato)
self.timer = QtCore.QTimer()
self.timer.timeout.connect(self.on_timer)
def potato(self, value):
if value:
self.timer.start(1000)
else:
self.timer.stop()
def on_timer(self):
print('potato')
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
w = Demo()
w.show()
sys.exit(app.exec_())
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