在QSystemTrayIcon中实现Popup映射

Question

我想实现弹出窗口的行为，就像windows 10中的默认音量控制器一样。点击图标，窗口打开或关闭；若窗口已打开，单击它的外部将关闭该窗口。我该如何实现？

以前，我发现小部件可以覆盖按下和释放鼠标键的方法，但在这里找不到，或者搜索不好。请帮帮我。

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QLabel, QGridLayout, 
QWidget, QSystemTrayIcon, QStyle, qApp
import PyQt5.QtCore

class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.setMinimumSize(PyQt5.QtCore.QSize(600, 130))
self.setMaximumSize(PyQt5.QtCore.QSize(600, 130))
self.setWindowFlags(PyQt5.QtCore.Qt.Popup)
screen_geometry = QApplication.desktop().availableGeometry()
screen_size = (screen_geometry.width(), screen_geometry.height())
win_size = (self.frameSize().width(), self.frameSize().height())
x = screen_size[0] - win_size[0]
y = screen_size[1] - win_size[1]
self.move(x, y)
self.setWindowOpacity(0.85)
self.setWindowTitle("System Tray Application")
central_widget = QWidget(self)
self.setCentralWidget(central_widget)
grid_layout = QGridLayout(central_widget)
grid_layout.addWidget(QLabel("Application, which can minimize to tray",
self), 0, 0)
self.tray_icon = QSystemTrayIcon(self)
self.tray_icon.setIcon(self.
style().standardIcon(QStyle.SP_ComputerIcon))
self.tray_icon.activated.connect(self.trigger)
self.tray_icon.show()
self.setGeometry(500, 570, 600, 130)
self.fl = False
def trigger(self, reason):
if reason == QSystemTrayIcon.MiddleClick:
qApp.quit()
elif reason == QSystemTrayIcon.Trigger:
if not self.fl:
self.show()
else:
self.hide()
self.fl = not self.fl
elif reason == 1:
self.fl = False
# def mouseReleaseEvent(self, event):
#     self.hide()
#     self.fl = False

if __name__ == "__main__":
app = QApplication(sys.argv)
mw = MainWindow()
mw.show()
sys.exit(app.exec())

Answer 1

如果要切换可见性，则必须使用setVisible()和isVisible()方法：

import sys
from PyQt5.QtWidgets import (
QApplication,
QGridLayout,
QLabel,
QMainWindow,
QStyle,
QSystemTrayIcon,
QWidget,
)
from PyQt5.QtCore import Qt, QSize

class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.setFixedSize(600, 130)
self.setWindowFlag(Qt.Popup)
self.setWindowOpacity(0.85)
self.setWindowTitle("System Tray Application")
central_widget = QWidget()
self.setCentralWidget(central_widget)
grid_layout = QGridLayout(central_widget)
grid_layout.addWidget(QLabel("Application, which can minimize to tray"), 0, 0)
self.tray_icon = QSystemTrayIcon(self)
self.tray_icon.setIcon(self.style().standardIcon(QStyle.SP_ComputerIcon))
self.tray_icon.activated.connect(self.trigger)
self.tray_icon.show()
self.setGeometry(
QStyle.alignedRect(
Qt.LeftToRight,
Qt.AlignBottom | Qt.AlignRight,
self.window().size(),
QApplication.desktop().availableGeometry(),
)
)
def trigger(self, reason):
if reason == QSystemTrayIcon.MiddleClick:
QApplication.quit()
elif reason == QSystemTrayIcon.Trigger:
self.setVisible(not self.isVisible())

if __name__ == "__main__":
app = QApplication(sys.argv)
mw = MainWindow()
mw.show()
sys.exit(app.exec())