PyQt5 - 如何制作胶囊形单选按钮？

在本文中，我们将看到如何创建胶囊形单选按钮。默认情况下，单选按钮的形状是矩形，胶囊形状基本上是矩形的两端有两个半圆的形状。

下面是普通边框单选按钮与胶囊形单选按钮的表示。

In order to do this we have to do the following:

1. Create a radio button
2. Set width greater than the height of radio button
3. Add border to it
4. Set radius of radio button to the half of height

为单选按钮添加边框和半径的样式表代码 -

QRadioButton
{
border : 3px solid black;
border-radius : 20px;
}

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 border to
        # radio button and changing radius to half of height
        self.radio_button.setStyleSheet("QRadioButton"
                                        "{"
                                        "border : 3px solid black;"
                                        "border-radius : 20px;"
                                        "}")
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：