PyQt5 – 为未选中的单选按钮的指示器设置背景图片

在这篇文章中，我们将看到如何为当前处于未选中状态的单选按钮的指示器设置背景图片。默认情况下，虽然我们可以为其添加背景图像，但没有与未选中状态相关的图像。为了给单选按钮的未选中状态添加背景图片，我们必须改变单选按钮的样式表，下面是样式表代码。

QRadioButton::indicator:unchecked
{
background-image : url(image.png);
}

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 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 image unchecked indicator
        self.radio_button.setStyleSheet("QRadioButton::indicator:unchecked"
                                        "{"
                                        "background-image : url(image.png);"
                                        "}")
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())