PyQt5 - 单选按钮选中指示器的背景颜色

在本文中，我们将了解如何在单选按钮处于选中状态时查看单选按钮指示器的背景颜色。默认情况下，黑色圆圈与选中状态相关联，尽管我们可以使用背景颜色对其进行更改。

为了给选中状态的指示器添加背景颜色，我们必须更改单选按钮的样式表，下面是样式表代码。

QRadioButton::indicator:checked
{
background-color : lightgreen;
}

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 a radio button
        self.radio_button = QRadioButton(self)
  
        # setting geometry of radio button
        self.radio_button.setGeometry(200, 150, 120, 40)
  
        # setting text to radio button
        self.radio_button.setText("Radio Button")
  
        # changing style sheet code of radio button
        # setting background color to indicator when it is in checked state
        self.radio_button.setStyleSheet("QRadioButton::indicator:checked"
                                        "{"
                                        "background-color : lightgreen;"
                                        "}")
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：