PyQt5 – 设置未选中的复选框在鼠标悬停时的背景颜色

在这篇文章中，我们将看到如何设置一个复选框的背景颜色，当它处于未选中状态时，鼠标悬停它。为了做到这一点，我们必须改变复选框中未选中状态和鼠标移动到它上面时的指标样式表。

下面是用于复选框对象的样式表代码。

QCheckBox::indicator:unchecked:hover
{
background-color : yellow;
}

以下是实施情况。

# 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 widgets
    def UiComponents(self):
  
        # creating the check-box
        checkbox = QCheckBox('Geek ?', self)
  
        # setting geometry of check box
        checkbox.setGeometry(200, 150, 100, 30)
  
        # adding background color to the indicator
        # when mouse hover over it for unchecked state
        checkbox.setStyleSheet("QCheckBox::indicator:unchecked:hover"
                               "{"
                               "background-color : yellow;"
                               "}")
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())