PySide2 - 主要 Window 没有显示并说“窗口没有响应”

Question

I have some trouble with pyside2... Before I got it to respond, but I can't right now.. I don't know why

Here's some code:

main.py

app = c.QApplication(c.sys.argv)
    splash_pix = c.QPixmap("animation.gif")
    splash = c.SplashScreen("animation.gif", c.Qt.WindowStaysOnTopHint)
    splash.show()
    app.processEvents()
    screen = app.primaryScreen()
    size = screen.size()
    main_window = c.Main(x=(size.width() // 2) - (500 // 2), y=(size.height() // 2) - (500 // 2))
    splash.finish(main_window)
    c.time.sleep(0.01)
    main_window.show()
    c.sys.exit(app.exec_())

I imported the packages "Main" is a class I made

class Main(QWidget):
    def __init__(self, x, y, width=500, height=500, parent=None):
        super().__init__()
        self.x, self.y, self.width, self.height = x, y, width, height
        self.setStyleSheet("background-color: rgba(255, 255, 255, 1);")
        self.setWindowTitle("Test")
        self.setGeometry(self.x, self.y, self.width, self.height)
        self.addWidgets()

    def addWidgets(self):
        self.welcome_label = QLabel("Test")
        self.welcome_label.setStyleSheet("QLabel {qproperty-alignment: AlignCenter; font-size: 30px; font-weight: 600;}")

        self.register_button = QPushButton("Register")
        self.register_button.setStyleSheet("QPushButton {background-color: qlineargradient(x1: 0, y1: 0, x2: 1, y2: 0.273, stop: 0 rgba(85,172,238,1), stop: 1 rgba(79, 165, 240, 1)); border-radius: 20px; color: white; font: bold 18px; min-width: 5em; min-height: 1.8em; padding: 1px;} QPushButton:hover {background-color: rgba(69, 131, 186, 1);}")
        self.register_button.clicked.connect(self.on_register)

        self.login_button = QPushButton("Login")
        self.login_button.setStyleSheet("QPushButton {background-color: qlineargradient(x1:0, y1:0, x2:1, y2:0.273, stop:0 rgba(85,172,238,1), stop:1 rgba(79, 165, 240, 1)); border-radius: 20px; color: white; font: bold 18px; min-width: 5em; min-height: 1.8em; padding: 1px;} QPushButton:hover {background-color: rgba(69, 131, 186, 1);}")
        self.login_button.clicked.connect(self.on_login)


        self.layout = QVBoxLayout()
        self.layout.addWidget(self.welcome_label)
        self.layout.addWidget(self.register_button)
        self.layout.addWidget(self.login_button)
        self.setLayout(self.layout)

Answer 1

I got the same problem with MacOS 11.0.1 Big Sur and PySide2 5.15.1 and 5.15.2 (it is mentioned in the internet that it was fixed for PyQt 5.15.2 but apparently this isn't the case for PySide2). I confirm solution with QT_MAC_WANTS_LAYER, I did it this way:

import os
os.environ['QT_MAC_WANTS_LAYER'] = '1' 

Answer 2

Okay, nevermind, I found the answer... Big Sur apparently messes up with PyQT. Fix here:https://forums.macrumors.com/threads/pyqt5-and-big-sur.2260773/ Basically run export QT_MAC_WANTS_LAYER=1 before running the program. Such a weird bug..