我正在嘗試為 PySide2 應用程序的 QRunnable 對象創建自定義信號。所有的例子都讓我通過以下方式創建了一個信號：class Foo1(QtCore.QObject): def __init__(): super().__init__() self.thread = Foo2() self.thread.signal.connect(foo) def foo(): # do somethingclass Foo2(QtCore.QRunnable): signal = QtCore.Signal()但是，我收到以下錯誤self.thread.signal.connect(foo)：'PySide.QtCore.Signal' object has no attribute 'connect'我應該如何為 QRunnable 對象實現自定義信號？
1 回答
GCT1015
TA貢獻1827條經驗 獲得超4個贊
QRunnable 不是 QObject，因此它不能有信號，因此可能的解決方案是創建一個提供信號的類：
class FooConnection(QtCore.QObject):
foosignal = QtCore.Signal(foo_type)
class Foo2(QtCore.QRunnable):
def __init__(self):
super(Foo2, self).__init__()
self.obj_connection = FooConnection()
def run(self):
# do something
foo_value = some_operation()
self.obj_connection.foosignal.emit(foo_value)
class Foo1(QtCore.QObject):
def __init__():
super().__init__()
self.pool = Foo2()
self.pool.obj_connection.foosignal.connect(foo)
QtCore.QThreadPool.globalInstance().start(self.pool)
@QtCore.Slot(foo_type)
def foo(self, foo_value):
# do something
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