PyQt5 QCalendarWidget 设置开始计时器
在这篇文章中,我们将看到如何设置QCalendarWidget的开始定时器。为了做到这一点,我们使用startTimer方法,这个方法在通过一定的时间间隔后调用timerEvent。它启动一个定时器并返回一个定时器标识,如果不能启动一个定时器,则返回0。
为了做到这一点,我们将使用QCalendarWidget对象的startTimer方法。
语法: calendar.startTimer(milliseconds)
参数: 它需要整数作为参数,即以毫秒为单位的间隔时间
返回: 它返回整数
注意: 为了使用startTimer,我们必须覆盖timerEvent
以下是实现
# importing libraries
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import sys
# QCalendarWidget Class
class Calendar(QCalendarWidget):
# constructor
def __init__(self, parent = None):
super(Calendar, self).__init__(parent)
# overriding the timer event
def timerEvent(self, event):
# show the next month
window.calendar.showNextMonth()
class Window(QMainWindow):
def __init__(self):
super().__init__()
# setting title
self.setWindowTitle("Python ")
# setting geometry
self.setGeometry(100, 100, 650, 400)
# calling method
self.UiComponents()
# showing all the widgets
self.show()
# method for components
def UiComponents(self):
# creating a QCalendarWidget object
# as Calendar class inherits QCalendarWidget
self.calendar = Calendar(self)
# setting geometry to the calendar
self.calendar.setGeometry(50, 10, 400, 250)
# setting cursor
self.calendar.setCursor(Qt.PointingHandCursor)
# starting the calendar timer
# passing 1000 milliseconds as parameter
timer_id = self.calendar.startTimer(1000)
# creating label to show the properties
self.label = QLabel(self)
# setting geometry to the label
self.label.setGeometry(100, 280, 250, 60)
# making label multi line
self.label.setWordWrap(True)
# setting text to the label
self.label.setText("Timer ID : " + str(timer_id))
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())