PyQt5 - 创建半透明按钮
在本文中,我们将看到如何创建半透明按钮,这里半透明是指不完全不透明的按钮。
为此,我们必须更改按钮的 alpha 级别,alpha 级别是不透明因子,alpha 的值越大,对象越不透明,但与主窗口不同,我们不能使用setWindowOpacity
方法,因此为了更改我们将使用setStyleSheet
方法的 alpha 值。
下面是普通按钮和半透明按钮的区别。
Syntax : button.setStyleSheet(“color : rgba(0, 0, 0, 100)”)
Argument : It takes string as argument. Here Rgba refer to red, green, blue and alpha level, they all vary from 0 to 255.
Action performed : It will set the alpha level of push button
代码 :
# importing libraries
from PyQt5.QtWidgets import *
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 push button
button = QPushButton("CLICK", self)
# setting geometry of button
button.setGeometry(200, 150, 100, 40)
# setting alpha level
button.setStyleSheet("color : rgba(0, 0, 0, 100)")
# adding action to a button
button.clicked.connect(self.clickme)
# action method
def clickme(self):
# printing pressed
print("pressed")
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())
输出 :