如何将参数传递给QThread Worker类?

时间:2014-08-20 20:20:42

标签: python mysql pyqt pyqt4 qthread

我有一个代码的工作示例,它创建了一个必须从我的类(MyClass)调用的QThread。我尝试通过Worker init 传递其他参数,但我无法使其工作。

如何使用此工作代码将1个或多个参数传递给我的工作线程?

from PyQt4 import QtCore
from PyQt4 import QtGui
from PyQt4.QtCore import * 

class Worker(QThread):
    processdone = QtCore.pyqtSignal("QString") # Define custom signal.
    def __init__(self, parent=None):
        QThread.__init__(self, parent)
    def run(self):
        print("do worker thread processing here")
        self.emit( SIGNAL('processdone'), "DONE")
        return       

class MyClass(QObject):

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

        thread1 = Worker(self) 
        self.connect( thread1, SIGNAL("processdone"), self.thread1done)  
        thread1.start()  

    def thread1done(self, text):
        print(text)                      # Print the text from the signal.
        sys.exit()

if __name__ == "__main__":
    import sys
    app = QtGui.QApplication(sys.argv)  
    a = MyClass()
    sys.exit(app.exec_())

我发现这个stackoverflow问题非常相似,但我无法得到接受的答案来使用上面的代码:Passing an argument when starting new QThread() in PyQt

1 个答案:

答案 0 :(得分:3)

不,我认为不是重复的问题,它还有更多的事情要做......

无论如何,你的问题想要传递更多的论据,在python中你可以传递许多参数调用' yourMethod(* args,** kw)&#39 ;;例子;

class Worker(QThread):
    .
    .
    def __init__(self, parent, *args, **kw):
        QThread.__init__(self, parent)
        self.yourInit(*args, **kw)
    .
    .
    def yourInit (self, x, y, z):
        print x, y, z
    .
    .

class MyClass(QObject):
        .
        .
    def __init__(self):            
        super(MyClass, self).__init__()   
        .
        .
        x = 1000
        y = 'STRING'
        z = [0, 1, 2, 3, 4]
        thread1 = Worker(self, x, y, z)
        .
        .

此致