它很简单,一旦你记住有年代无法真正减少< a href = " https://web.archive.org/web/20070114154431/http / /blogs.msdn.com/oldnewthing/archive/2003/09/10/54831.aspx " rel = " nofollow noreferrer " >系统托盘< / >。

相反,你假装这样做:

1. Catch the minimize event on your window
2. In the minimize event handler, create and show a QSystemTrayIcon
3. Also in the minimize event handler, call hide() or setVisible(false) on your window
4. Catch a click/double-click/menu item on your system tray icon
5. In your system tray icon event handler, call show() or setVisible(true) on your window, and optionally hide your tray icon.

代码帮助,这里我写的应用程序,除了closeEvent而不是减少事件。

注:

“closeEvent(事件)”是一个覆盖Qt事件,所以必须把在课堂上实现你想要隐藏的窗口。

“okayToClose()”是一个函数你可以考虑实施(或您可能想要一个布尔标志商店)因为有时你真的想退出应用程序,而不是最小化到系统托盘。

还有一个例子,如何显示()你的窗口。

def __init__(self):
  traySignal = "activated(QSystemTrayIcon::ActivationReason)"
  QtCore.QObject.connect(self.trayIcon, QtCore.SIGNAL(traySignal), self.__icon_activated)

def closeEvent(self, event):
  if self.okayToClose(): 
    #user asked for exit
    self.trayIcon.hide()
    event.accept()
  else:
    #"minimize"
    self.hide()
    self.trayIcon.show() #thanks @mojo
    event.ignore()

def __icon_activated(self, reason):
  if reason == QtGui.QSystemTrayIcon.DoubleClick:
    self.show()

只是为了增加由克里斯的例子:

<强> < /强>是至关重要的,你使用Qt符号声明信号时,即

正确<强> < / >强:

self.connect(self.icon, SIGNAL("activated(QSystemTrayIcon::ActivationReason)"), self.iconClicked)

而不是PyQt之一

<强> < /强>不对、不工作:

self.connect(self.icon, SIGNAL("activated(QSystemTrayIcon.ActivationReason)"), self.iconClicked)

注意<代码>::> < /代码信号字符串。我花了三个小时才算出。

这年代工作代码。由于<强> Matze < /强>为<强> < /强>至关重要,好奇心的信号我花了更多的时间。但做其他事情。所以ta # !:-)

def create_sys_tray(self):
    self.sysTray = QtGui.QSystemTrayIcon(self)
    self.sysTray.setIcon( QtGui.QIcon( ../images/corp/blip_32.png ) )
    self.sysTray.setVisible(True)
    self.connect(self.sysTray, QtCore.SIGNAL("activated(QSystemTrayIcon::ActivationReason)"), self.on_sys_tray_activated)

    self.sysTrayMenu = QtGui.QMenu(self)
    act = self.sysTrayMenu.addAction("FOO")

def on_sys_tray_activated(self, reason):
    print "reason-=" , reason

这是一个编辑vzades响应,但它被拒绝的理由。它一样的代码也遵守最小化事件(和运行没有语法错误/失踪的图标)。

import sys
from PyQt4 import QtGui, QtCore


class Example(QtGui.QWidget):
    def __init__(self):
        super(Example, self).__init__()
        self.initUI()

    def initUI(self):
        style = self.style()

        # Set the window and tray icon to something
        icon = style.standardIcon(QtGui.QStyle.SP_MediaSeekForward)
        self.tray_icon = QtGui.QSystemTrayIcon()
        self.tray_icon.setIcon(QtGui.QIcon(icon))
        self.setWindowIcon(QtGui.QIcon(icon))

        # Restore the window when the tray icon is double clicked.
        self.tray_icon.activated.connect(self.restore_window)

    def event(self, event):
        if (event.type() == QtCore.QEvent.WindowStateChange and 
                self.isMinimized()):
            # The window is already minimized at this point.  AFAIK,
            # there is no hook stop a minimize event. Instead,
            # removing the Qt.Tool flag should remove the window
            # from the taskbar.
            self.setWindowFlags(self.windowFlags() & ~QtCore.Qt.Tool)
            self.tray_icon.show()
            return True
        else:
            return super(Example, self).event(event)

    def closeEvent(self, event):
        reply = QtGui.QMessageBox.question(
            self,
             Message ,"Are you sure to quit?",
            QtGui.QMessageBox.Yes | QtGui.QMessageBox.No,
            QtGui.QMessageBox.No)

        if reply == QtGui.QMessageBox.Yes:
            event.accept()
        else:
            self.tray_icon.show()
            self.hide()
            event.ignore()

    def restore_window(self, reason):
        if reason == QtGui.QSystemTrayIcon.DoubleClick:
            self.tray_icon.hide()
            # self.showNormal will restore the window even if it was
            # minimized.
            self.showNormal()

def main():
    app = QtGui.QApplication(sys.argv)
    ex = Example()
    ex.show()
    sys.exit(app.exec_())


if __name__ ==  __main__ :
    main()

这是正确的方法来处理PyQt5双击托盘图标。

def _create_tray(self):
    self.tray_icon = QSystemTrayIcon(self)
    self.tray_icon.activated.connect(self.__icon_activated)

def __icon_activated(self, reason):
    if reason in (QSystemTrayIcon.Trigger, QSystemTrayIcon.DoubleClick):
        pass

这是代码,它确实帮助我相信给我的代码

import sys
from PyQt4 import QtGui, QtCore
from PyQt4.QtGui import QDialog, QApplication, QPushButton, QLineEdit, QFormLayout, QSystemTrayIcon


class Example(QtGui.QWidget):

    def __init__(self):
        super(Example, self).__init__()
        self.initUI()

    def initUI(self):
        self.icon = QSystemTrayIcon()
        r = self.icon.isSystemTrayAvailable()
        print r
        self.icon.setIcon(QtGui.QIcon( /home/vzades/Desktop/web.png ))
        self.icon.show()
        # self.icon.setVisible(True)
        self.setGeometry(300, 300, 250, 150)
        self.setWindowIcon(QtGui.QIcon( /home/vzades/Desktop/web.png ))
        self.setWindowTitle( Message box )
        self.show()
        self.icon.activated.connect(self.activate)
        self.show()

    def closeEvent(self, event):

        reply = QtGui.QMessageBox.question(self,  Message , "Are you sure to quit?", QtGui.QMessageBox.Yes |
                                           QtGui.QMessageBox.No, QtGui.QMessageBox.No)

        if reply == QtGui.QMessageBox.Yes:
            event.accept()
        else:
            self.icon.show()

            self.hide()

            event.ignore()

    def activate(self, reason):
        print reason
        if reason == 2:
            self.show()

    def __icon_activated(self, reason):
        if reason == QtGui.QSystemTrayIcon.DoubleClick:
            self.show()


def main():

    app = QtGui.QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())


if __name__ ==  __main__ :
    main()