Python 在QTimer Singleshot之后终止QThread
我有个问题。我正在运行一个PyQt5表单,该表单在QThread中运行一个名为Python 在QTimer Singleshot之后终止QThread,python,pyqt,pyqt5,signals-slots,qthread,Python,Pyqt,Pyqt5,Signals Slots,Qthread,我有个问题。我正在运行一个PyQt5表单,该表单在QThread中运行一个名为Task()(我不会深入了解其代码的详细信息,但它基本上只是向QLabel返回一个值),如下所示: class Menu(QMainWindow): def __init__(self, workers): super().__init__() self.central_widget = QWidget() self.setCentr
Task()
(我不会深入了解其代码的详细信息,但它基本上只是向QLabel
返回一个值),如下所示:
class Menu(QMainWindow):
def __init__(self, workers):
super().__init__()
self.central_widget = QWidget()
self.setCentralWidget(self.central_widget)
lay = QVBoxLayout(self.central_widget)
self.setFixedSize(500, 350)
Pic = QLabel(self)
self.Total = QLabel("Total: <font color='orange'>%s</font>" % (to_check()), alignment=QtCore.Qt.AlignHCenter)
lay.addWidget(self.Total)
thread = QtCore.QThread(self)
thread.start()
self.worker = Task()
self.worker.moveToThread(thread)
self.worker.totalChanged.connect(self.updateTotal)
QtCore.QTimer.singleShot(0, self.worker.dostuff)
thread.finished.connect(self.terminate)
@QtCore.pyqtSlot(int)
def updateTotal(self, total):
self.Total.setText("Total: <font color='orange'>%s</font>" % (total))
def terminate(self):
print("FINISHED")
self.worker.quit()
self.worker.wait()
self.close()
类菜单(QMainWindow):
定义初始化(自身、工作人员):
super()。\uuuu init\uuuuu()
self.central_widget=QWidget()
self.setCentralWidget(self.central\u小部件)
lay=QVBoxLayout(self.central\u小部件)
自设置固定大小(500350)
Pic=QLabel(自)
self.Total=QLabel(“总计:%s”%(to_check()),alignment=QtCore.Qt.AlignHCenter)
lay.addWidget(self.Total)
thread=QtCore.QThread(self)
thread.start()
self.worker=Task()
self.worker.moveToThread(线程)
self.worker.totalChanged.connect(self.updateTotal)
QtCore.QTimer.singleShot(0,self.worker.dostuff)
线程。完成。连接(自终止)
@QtCore.pyqtSlot(int)
def updateTotal(自身、总计):
self.Total.setText(“总计:%s”%(总计))
def终止(自我):
打印(“完成”)
self.worker.quit()
self.worker.wait()
self.close()
我希望程序在Task().dostuff()
函数完成后调用terminate
插槽(基本上终止线程和函数),但我似乎无法让它工作
我不确定如何通过
QTimer返回主函数。单次启动应该不需要计时器。使用线程的started
信号启动辅助线程,并向辅助线程类添加finished
信号以退出线程:
class Task(QtCore.QObject):
totalChanged = QtCore.pyqtSignal(int)
finished = QtCore.pyqtSignal()
def dostuff(self):
# do stuff ...
self.finished.emit()
class Menu(QtWidgets.QMainWindow):
def __init__(self, workers):
super().__init__()
...
self.thread = QtCore.QThread()
self.worker = Task()
self.worker.moveToThread(self.thread)
self.worker.totalChanged.connect(self.updateTotal)
self.worker.finished.connect(self.thread.quit)
self.thread.started.connect(self.worker.dostuff)
self.thread.start()