pyside widget run with threading.Thread class

问题

I have obtained a widget from a QtDesigner and converted .ui file to .py file by pyside. now I want that widget to organize a database and an apart threading.Thread (in same module) to open and read database and send to UDP. the fact that I know how to deal with all these apartly but when bringing together it is hard. should I use thread as a class inside my widget class which is:

def setupUi(self, Form):
...
def retranslateUi(self, Form):
...
if __name__ == "__main__":
...
Form.show()

and also can anyone give an example for running another thread with that widget?

Thanks in advance

回答1:

I give you an example for using QThreads in PySide/PyQt to achieve multithreading and communication with other Widgets. I use it myself.

from PySide import QtCore

class Master(QtCore.QObject):

    command = QtCore.Signal(str)

    def __init__(self):
        super().__init__()

class Worker(QtCore.QObject):

    def __init__(self):
        super().__init__()

    def do_something(self, text):
        print('in thread {} message {}'.format(QtCore.QThread.currentThread(), text))

if __name__ == '__main__':

    app = QtCore.QCoreApplication([])

    # give us a thread and start it
    thread = QtCore.QThread()
    thread.start()

    # create a worker and move it to our extra thread
    worker = Worker()
    worker.moveToThread(thread)

    # create a master object and connect it to the worker
    master = Master()
    master.command.connect(worker.do_something)

    # call a method of the worker directly (will be executed in the actual thread)
    worker.do_something('in main thread')

    # communicate via signals, will execute the method now in the extra thread
    master.command.emit('in worker thread')

    # start the application and kill it after 1 second
    QtCore.QTimer.singleShot(1000, app.quit)
    app.exec_()

    # don't forget to terminate the extra thread
    thread.quit()

来源：https://stackoverflow.com/questions/24165877/pyside-widget-run-with-threading-thread-class