PyQt5 - 根据内容长度改变单选按钮的大小

在本文中，我们将了解如何根据其中的内容更改单选按钮的大小。基本上，有两种方法可以做到这一点。第一种是冗长的，我们获取单选按钮的内容，然后我们找到它的长度，然后根据长度更改单选按钮的大小，这很长而且不会那么准确，第二种方法是使用 adjustSize 方法将自动更改大小单选按钮并且更准确。

In order to do change the radio button size according to the content we have to do the following –
1. Create a radio button
2. Create a push button
3. Add action to the radio button
4. In side the action change the size using adjustSize method

编程需要懂一点英语

下面是实现

Python3

# 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("Radio button", self)
 
        # setting geometry of radio button
        self.radio_button.setGeometry(200, 150, 120, 40)
 
        # adding border to the radio button
        self.radio_button.setStyleSheet("border : 2px solid green;")
 
        # creating push button
        self.button = QPushButton("press to change", self)
 
        # adding action to push button
        self.button.pressed.connect(self.change)
 
        # setting geometry to button
        self.button.setGeometry(100, 100, 100, 40)
 
 
    # method called by push button
    def change(self):
 
        # adjusting the size of radio button
        self.radio_button.adjustSize()
 
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())

输出：