相关疑难解决方法(0)

这是我之前发布的前一个问题的后续问题.问题是当使用NOT子类化Qthread的推荐方法时,如何从GUI停止(终止|退出)QThread,而是使用QObject然后将其移动到QThread.下面是一个工作实例.我可以启动GUI和Qthread,我可以让后者更新GUI.但是,我无法阻止它.我为qthread(quit(),exit(),甚至terminate())尝试了几种方法无济于事.非常感谢.

这是完整的代码:

import time, sys
from PyQt4.QtCore  import *
from PyQt4.QtGui import * 

class SimulRunner(QObject):
    'Object managing the simulation'

    stepIncreased = pyqtSignal(int, name = 'stepIncreased')
    def __init__(self):
        super(SimulRunner, self).__init__()
        self._step = 0
        self._isRunning = True
        self._maxSteps = 20

    def longRunning(self):
        while self._step  < self._maxSteps  and self._isRunning == True:
            self._step += 1
            self.stepIncreased.emit(self._step)
            time.sleep(0.1)

    def stop(self):
        self._isRunning = False

class SimulationUi(QDialog):
    'PyQt interface'

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

        self.goButton = QPushButton('Go')
        self.stopButton = QPushButton('Stop')
        self.currentStep = QSpinBox()

        self.layout = QHBoxLayout()
        self.layout.addWidget(self.goButton)
        self.layout.addWidget(self.stopButton) …