正如我在标题中提到的。我怎样才能做这样的事情?
class Main(QWidget):
def __init__(self):
super().__init__()
def StartButtonEvent(self):
self.test = ExecuteThread()
self.test.start()
def MyEvent(self):
#MainThreadGUI
class ExecuteThread(QThread):
def run(self):
# A lot of work
# Signal to main thread about finishing of job = mainthread will perform MyEvent
我在这里找到了一些教程pyqt4将线程中的信号发送到主线程中的插槽 https://stackoverflow.com/questions/9614947/pyqt4-emiting-signals-in-threads-to-slots-in-main-thread
和这里从 pyQt Qthread 发出信号 https://stackoverflow.com/questions/37081098/emit-signal-from-pyqt-qthread-causes-python-exe-crash
但它似乎在 PyQt5 中不起作用:/
只需使用QThread.finished http://doc.qt.io/qt-5/qthread.html#finished在这里发出信号。如果您完成线程,它将自动执行。
当然,如果您愿意,您也可以定义自己的自定义信号。
from PyQt5.QtCore import pyqtSignal
class Main(QWidget):
def __init__(self):
super().__init__()
def StartButtonEvent(self):
self.test = ExecuteThread()
self.test.start()
self.test.finished.connect(thread_finished)
self.test.my_signal.connect(my_event)
def thread_finished(self):
# gets executed if thread finished
pass
def my_event(self):
# gets executed on my_signal
pass
class ExecuteThread(QThread):
my_signal = pyqtSignal()
def run(self):
# do something here
self.my_signal.emit()
pass
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