即使通过activated插槽正在执行，菜单仍未显示。我通过手动单击托盘图标和模拟单击进行了跟踪，并且其执行逻辑相同。
目前我有
class MyClass(QObject):
def __init__():
self._testSignal.connect(self._test_show)
self.myTrayIcon.activated.connect(lambda reason: self._update_menu_and_show(reason))
def show():
self._testSignal.emit()
@pyqtSlot()
def _test_show():
self._trayIcon.activated.emit(QtWidgets.QSystemTrayIcon.Trigger)
@QtCore.pyqtSlot()
def _update_menu_and_show(reason):
if reason in (QtWidgets.QSystemTrayIcon.Trigger):
mySystemTrayIcon._update_menu()
...
class MySystemTrayIcon(QSystemTrayIcon):
def _update_menu(self):
# logic to populate menu
self.setContextMenu(menu)
...
MyClass().show()
这是我如何弹出与托盘图标关联的上下文菜单
class MyClass(QObject):
def __init__():
self._testSignal.connect(self._test_show)
self.myTrayIcon.activated.connect(lambda reason: self._update_menu_and_show(reason))
def show():
self._testSignal.emit()
@pyqtSlot()
def _test_show():
self._trayIcon.activated.emit(QSystemTrayIcon.Context)
@QtCore.pyqtSlot()
def _update_menu_and_show(reason):
if reason in (QSystemTrayIcon.Trigger, QSystemTrayIcon.Context):
mySystemTrayIcon._update_menu()
# Trigger means user initiated, Context used for simulated
# if simulated seems like we have to tell the window to explicitly show
if reason == QSystemTrayIcon.Context:
mySystemTrayIcon.contextMenu().setWindowFlags(QtCore.Qt.WindowStaysOnTopHint|QtCore.Qt.FramelessWindowHint)
pos = mySystemTrayIcon.geometry().bottomLeft()
mySystemTrayIcon.contextMenu().move(pos)
mySystemTrayIcon.contextMenu().show()
...
class MySystemTrayIcon(QSystemTrayIcon):
def _update_menu(self):
# logic to populate menu
self.setContextMenu(menu)
...
MyClass().show()
看来你必须设置WindowStaysOnTopHint在上下文菜单上，以便它出现。
此解决方案特定于 Mac，因为它假设任务栏位于顶部。
一个副作用是上下文菜单始终位于顶部，即使用户单击其他位置也是如此。我在上下文菜单上放置了一个事件过滤器，它注册的唯一有用的事件是QEvent.Leave
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