PyQt5 – 进度条的setInvertedAppearance()方法

当我们在PyQt5中创建进度条时，默认情况下进度条是从左到右的，但PyQt5允许我们在setInvertedAppearance方法的帮助下改变其方向。它接受bool作为参数，使进度条倒置。下面是正常的进度条和倒置的进度条的样子

PyQt5 - 进度条的setInvertedAppearance()方法

语法： bar.setInvertedAppearance(True)

参数： 它以bool作为参数。

执行的操作： 它将进度条设置为倒置的外观。

# 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())