QSystemTrayIcon not showing

Question

使用Kubuntu 18.04(qt5 5.9.5(，Python 3.6。我无法获得此代码来显示托盘图标；显示了其他图标，如Dropbox等，但这不是：

import sys
from PyQt5.QtWidgets import QApplication, QMenu, QSystemTrayIcon, qApp, QMessageBox
from PyQt5.QtGui import QIcon

def run_something():
print("Running something...")

if __name__ == '__main__':
print("Creating application...")
app = QApplication(sys.argv)
print("Creating menu...")
menu = QMenu()
checkAction = menu.addAction("Check Now")
checkAction.triggered.connect(run_something)
quitAction = menu.addAction("Quit")
quitAction.triggered.connect(qApp.quit)
print("Creating icon...")
icon = QIcon.fromTheme("system-help")
print("Creating tray...")
trayIcon = QSystemTrayIcon(icon, app)
trayIcon.setContextMenu(menu)
print("Showing tray...")
trayIcon.show()
trayIcon.setToolTip("unko!")
trayIcon.showMessage("hoge", "moge")
print("Running application...")
sys.exit(app.exec_())

显示了消息("hoge"、"moge"(，但我在任何地方都找不到图标。。。正如其他帖子所说，左上角也没有。

Answer 1

不知道为什么，但这段代码有效，使用PySide2(基本上与上面的代码相同…(：

import logging
import sys
from PySide2.QtGui import QIcon
from PySide2.QtWidgets import QSystemTrayIcon, QMenu, QApplication, QAction, QMessageBox

def run_something():
print("Running something...")

def show_message():
msg = QMessageBox()
msg.setIcon(QMessageBox.Information)
msg.setWindowTitle("MessageBox demo")
msg.setText("This is a message box")
msg.setInformativeText("This is additional information")
msg.setDetailedText("The details are as follows:")
msg.setStandardButtons(QMessageBox.Ok | QMessageBox.Cancel)
msg.exec_()

def show_tray_message(tray: QSystemTrayIcon):
tray.showMessage("Hoooo", "Message from tray")

if __name__ == '__main__':
app = QApplication([])
app.setQuitOnLastWindowClosed(False)
tray = QSystemTrayIcon(QIcon("acorn.png"), app)
menu = QMenu()
action_test = QAction("Show a message box")
action_test.triggered.connect(show_message)
menu.addAction(action_test)
action_tray_message = QAction("Show a message from tray")
action_tray_message.triggered.connect(lambda: show_tray_message(tray))
menu.addAction(action_tray_message)
action_exit = QAction("Exit")
action_exit.triggered.connect(app.exit)
menu.addAction(action_exit)
tray.setContextMenu(menu)
tray.setToolTip("Tool tip")
tray.show()
sys.exit(app.exec_())

Answer 2

尝试PySide2。今天，我刚刚让PySimpleGUIQt与QSystemTrayIcon一起在Linux和Windows上运行PySide2。也许你在那里会有更好的运气？