我有一个生成多个线程的 PySide (Qt) GUI。线程有时需要更新 GUI。我已经通过以下方式解决了这个问题:
class Signaller(QtCore.QObject) :
my_signal = QtCore.Signal(QListWidgetItem, QIcon)
signaller = Signaller()
class MyThread(threading.Thread):
def __init__(self):
super(IconThread, self).__init__()
# ...
def run(self) :
# ...
# Need to update the GUI
signaller.my_signal.emit(self.item, icon)
#
# MAIN WINDOW
#
class Main(QtGui.QMainWindow):
def __init__(self):
QtGui.QMainWindow.__init__(self)
# ...
# Connect signals
signaller.my_signal.connect(self.my_handler)
@QtCore.Slot(QListWidgetItem, QIcon)
def my_handler(self, item, icon):
item.setIcon(icon)
def do_something(self, address):
# ...
# Start new thread
my_thread = MyThread(newItem)
my_thread.start()
# ...
有没有更简单的方法?创建信号、处理程序并连接它们需要几行代码。