PyQt5 QCalendarWidget – 阻止所有动作（信号）

在本文中，我们将了解如何阻止与 QCalendarWidget 关联的所有信号。有与日历相关的各种信号，例如日期更改信号页面更改信号等。仅使用此信号将操作添加到日历中。

In order to do this we will use blockSignals method with the QCalendarWidget object.
Syntax : calendar.blockSignals(True)
Argument : It takes bool as argument
Return: It return bool i.e previous block signal state of calendar

编程需要懂一点英语

下面是实现

Python3

# importing libraries
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
 
 
class Window(QMainWindow):
 
    def __init__(self):
        super().__init__()
 
        # setting title
        self.setWindowTitle("Python ")
 
        # setting geometry
        self.setGeometry(100, 100, 600, 400)
 
        # calling method
        self.UiComponents()
 
        # showing all the widgets
        self.show()
 
    # method for components
    def UiComponents(self):
 
        # creating a QCalendarWidget object
        self.calendar = QCalendarWidget(self)
 
        # setting geometry to the calendar
        self.calendar.setGeometry(50, 10, 400, 250)
 
        # creating a label
        label = QLabel(self)
 
        # setting geometry
        label.setGeometry(120, 280, 200, 60)
 
        # making it multi line
        label.setWordWrap(True)
 
        # adding action to the calendar
        self.calendar.selectionChanged.connect(lambda: label.setText("Selection Changed Signal"))
 
        # adding action to the calendar
        self.calendar.currentPageChanged.connect(lambda: label.setText("Page Changed Signal"))
 
        # blocking the signals
        self.calendar.blockSignals(True)
 
        # setting text to the label
        label.setText("If signal will be emitted they will be shown here")
 
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
 
# start the app
sys.exit(App.exec())

输出：