PyQt5 – 进度条的 setInvertedAppearance() 方法

当我们在 PyQt5 中创建进度条时，默认进度，即加载从左到右，但是 PyQt5 允许我们在setInvertedAppearance方法的帮助下改变它的方向。它以 bool 作为参数并使进度条倒置。

下面是正常进度条和倒置进度条的样子

Syntax : bar.setInvertedAppearance(True)

Argument : It takes bool as argument.

Action performed : It set set the progress bar to inverted appearance.

# 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 progress bar
        bar = QProgressBar(self)
  
        # setting geometry to progress bar
        bar.setGeometry(200, 100, 200, 30)
  
        # setting the value
        bar.setValue(70)
  
        # setting alignment to center
        bar.setAlignment(Qt.AlignCenter)
  
        # making progress bar inverted
        bar.setInvertedAppearance(True)
  
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：