好了,经过一些调试,我发现了问题。完成__init__
功能后销毁的QMenu对象,因为它没有父对象。虽然QSystemTrayIcon的父级可以是QMenu的对象,但它必须是Qwidget。此代码有效(请参阅QMenu如何与作为QWidget的QSystemTrayIcon获得相同的父代):
import sys
from PyQt4 import QtGui
class SystemTrayIcon(QtGui.QSystemTrayIcon):
def __init__(self, icon, parent=None):
QtGui.QSystemTrayIcon.__init__(self, icon, parent)
menu = QtGui.QMenu(parent)
exitAction = menu.addAction("Exit")
self.setContextMenu(menu)
def main():
app = QtGui.QApplication(sys.argv)
w = QtGui.QWidget()
trayIcon = SystemTrayIcon(QtGui.QIcon("Bomb.xpm"), w)
trayIcon.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()