Question

我希望将QThread finish（）信号连接到带有参数的插槽，但是只有在没有参数的情况下，它才有效。

目标是在flow_iteration1_finished方法的stage_match方法中使用参数。

主线程：

stage_match方法已连接到我的小部件上的按钮

def stage_match(self):
    # Creates thread
    #Directory
    directory = "{0}/Stage Match".format(ValveSizingDirectory[-1])
    #Subdirectory
    subdirectory = "{0}/Sheet{1}".format(directory,buttonId)
    #Flow file
    flowfile = "Calculate{0}".format(buttonId)
    #Subdir/Flow file 
    filename_dir = '{0}/{1}'.format(subdirectory,flowfile)
    self.flowiter1 = flowIteration1(subdirectory,flowfile)
    # Unable to add arguments, any way to achieve this ?
    # self.flowiter1.finished.connect(self.flow_iteration1_finished(filename_dir,flowfile)) 
    # works but doesn't pass arguments
    self.flowiter1.finished.connect(self.flow_iteration1_finished)
    self.flowiter1.start()

def flow_iteration1_finished(self,filename_dir,flowfile):
    #do something with filename/flowfile parameters
    pass

要使用的QThread：

class flowIteration1(QtCore.QThread):
    """Thread to run flow iteration1-original"""
    def __init__(self,dir,name, parent = None):
        super().__init__(parent)
        self.dir = dir
        self.name = name
    def run(self):
        from subprocess import call
        call("ZCSP {0}.ZCSP {0}.OUT".format(self.name),cwd="{0}".format(self.dir),shell=False)

同样，我对实际线程没有问题，我只是想将QThread的完成信号连接到带有参数的插槽上

stage_match方法中的语句带有已注释掉的参数，我会收到此错误；

TypeError：参数1具有意外的类型'NoneType'

QThread完成信号通过参数连接到插槽

0 个答案: