PyQt5 – 当鼠标悬停时，如何设置复选框指标的背景图片

在这篇文章中，我们将看到如何在鼠标悬停在复选框的指示器上时，为其设置背景图片。默认情况下，没有与之相关的背景图片。只有当鼠标悬停在它上面时，这个背景图片才会出现。

为了给指示器复选框添加背景图片，我们必须改变样式表代码，下面是样式表代码。

QCheckBox::indicator:hover
{
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 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())