为什么我的程序在我想显示后没有响应？

Question

我用 PyQT5 和 SysTrayIcon (infi.systray) 制作了一个小程序，如果程序关闭（用户按下“X”），可以选择用 TrayIcon 打开它。

如果按下“打开”按钮（在 TrayIcon 中），则程序必须显示为开始时的样子

然而，正在启动但没有响应

为什么？以及如何修复它？
我的代码：

import sys
from infi.systray import SysTrayIcon
from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(555,333)
        MainWindow.setMinimumSize(QtCore.QSize(555, 333))
        MainWindow.setMaximumSize(QtCore.QSize(555, 333))
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setMinimumSize(QtCore.QSize(555, 333))
        self.centralwidget.setMaximumSize(QtCore.QSize(555, 333))
        font = QtGui.QFont()
        font.setFamily("Comfortaa")
        font.setPointSize(15)
        self.centralwidget.setFont(font)
        self.centralwidget.setCursor(QtGui.QCursor(QtCore.Qt.ArrowCursor))
        self.centralwidget.setStyleSheet("background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:1, stop:0 rgba(150, 2, 255, 255), stop:1 rgba(255, 0, 230, 255));")
        self.centralwidget.setObjectName("centralwidget")
# Logo
        self.logo = QtWidgets.QLabel(self.centralwidget)
        self.logo.setGeometry(QtCore.QRect(50, 30, 201, 221))
        self.logo.setStyleSheet("background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(0, 0, 0, 0), stop:1 rgba(255, 255, 255, 0));")
        self.logo.setText("")
        self.logo.setPixmap(QtGui.QPixmap("/photos/logo.png"))
        self.logo.setObjectName("logo")
# Rules
        self.Rules = QtWidgets.QLabel(self.centralwidget)
        self.Rules.setGeometry(QtCore.QRect(300, 30, 300, 200))
        self.Rules.setStyleSheet("background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(0, 0, 0, 0), stop:1 rgba(255, 255, 255, 0));\n"
"font: 25 10pt \"Comfortaa\";")
        self.Rules.setWordWrap(True)
        self.Rules.setObjectName("Rules")
        MainWindow.setCentralWidget(self.centralwidget)


        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)



# Trayicon
        def open(systray):
            MainWindow.show()
        def info(systray):
            print("Info")
        def help(systray):
            print("Help")
        menu_options = (("Open", None, open), ("Info", None, info),("Help", None, help))
        systray = SysTrayIcon("/icons/logo.ico", "App", menu_options)
        systray.start()


    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Program"))
        self.Rules.setText(_translate("MainWindow", "Short rules how to use it:"))




if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    app_icon = QtGui.QIcon()
    app_icon.addFile('/icons/logo.ico')
    app.setWindowIcon(app_icon)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

Answer 1

您需要在末尾添加 app.setQuitOnLastWindowClosed(False)，因此您的代码将如下所示：

import sys
from infi.systray import SysTrayIcon
from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(555,333)
        MainWindow.setMinimumSize(QtCore.QSize(555, 333))
        MainWindow.setMaximumSize(QtCore.QSize(555, 333))
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setMinimumSize(QtCore.QSize(555, 333))
        self.centralwidget.setMaximumSize(QtCore.QSize(555, 333))
        font = QtGui.QFont()
        font.setFamily("Comfortaa")
        font.setPointSize(15)
        self.centralwidget.setFont(font)
        self.centralwidget.setCursor(QtGui.QCursor(QtCore.Qt.ArrowCursor))
        self.centralwidget.setStyleSheet("background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:1, stop:0 rgba(150, 2, 255, 255), stop:1 rgba(255, 0, 230, 255));")
        self.centralwidget.setObjectName("centralwidget")
# Logo
        self.Elsi_logo = QtWidgets.QLabel(self.centralwidget)
        self.Elsi_logo.setGeometry(QtCore.QRect(50, 30, 201, 221))
        self.Elsi_logo.setStyleSheet("background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(0, 0, 0, 0), stop:1 rgba(255, 255, 255, 0));")
        self.Elsi_logo.setText("")
        self.Elsi_logo.setPixmap(QtGui.QPixmap("/photos/logo.png"))
        self.Elsi_logo.setObjectName("logo")
# Rules
        self.Rules = QtWidgets.QLabel(self.centralwidget)
        self.Rules.setGeometry(QtCore.QRect(300, 30, 300, 200))
        self.Rules.setStyleSheet("background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(0, 0, 0, 0), stop:1 rgba(255, 255, 255, 0));\n"
"font: 25 10pt \"Comfortaa\";")
        self.Rules.setWordWrap(True)
        self.Rules.setObjectName("Rules")
        MainWindow.setCentralWidget(self.centralwidget)


        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)



# Trayicon
        def open(systray):
            MainWindow.show()
        def info(systray):
            print("Info")
        def help(systray):
            print("Help")
        menu_options = (("Open", None, open), ("Info", None, info),("Help", None, help))
        systray = SysTrayIcon("/icons/logo.ico", "App", menu_options)
        systray.start()


    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Program"))
        self.Rules.setText(_translate("MainWindow", "Short rules how to use it:"))




if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    app_icon = QtGui.QIcon()
    app_icon.addFile('/icons/logo.ico')
    app.setWindowIcon(app_icon)
    app.setQuitOnLastWindowClosed(False)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

为什么我的程序在我想显示后没有响应？

Why my program is not responding after I want to show it?

python

pyqt

pyqt5

trayicon

systray