PyQt5 - 复选框中未选中指示器的背景颜色

在本文中，我们将看到如何在复选框处于未选中状态时将背景颜色设置为复选框的指示符。选中后，它将恢复为默认形式，对于未选中状态，我们可以设置背景颜色。

为了给处于未选中状态的指示器添加背景颜色，我们必须更改未选中状态指示器的样式表下面是样式表代码。

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

下面是实现。

# 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 for unchecked state
        checkbox.setStyleSheet("QCheckBox::indicator:unchecked"
                               "{"
                               "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())

输出 ：