PyQt5 – 如何在鼠标悬停时设置复选框指示器的背景图像

在本文中，我们将看到当鼠标悬停在复选框上时如何将背景图像设置为复选框的指示器。默认情况下，没有与之关联的背景图像。此背景图像仅在鼠标悬停在其上时才会出现。

为了将背景图像添加到指示器复选框，我们必须更改样式表代码，下面是执行此操作的样式表代码。

QCheckBox::indicator:hover
{
background-image : url(image.png);
}

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
        checkbox1 = QCheckBox('Geek ?', self)
  
        # setting geometry of check box
        checkbox1.setGeometry(200, 150, 100, 40)
  
        # changing style sheet code of check box
        # adding background image to indicator when mouse hover over it
        checkbox1.setStyleSheet("QCheckBox::indicator:hover"
                                "{"
                                "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())

输出 ：