在PyQt5中编辑完成信号的QSpinBox？

Question

当我为QSpinBox使用valueChanged信号时，当我单击箭头时，以及当我在QSpinBox的文本字段中键入任何字符时，它都会做出反应。你知道吗

我希望QSpinBox有一个editingFinished信号，所以当我更改spinbox文本字段中的值时，它只在Enter或Tab上起作用。你知道吗

显然，根据以下链接，这曾经是一种可能性：

• about QSpinBox, how to make it emit editingFinished signal when click the "up/down" arrow button ?? | Qt Forum
• Qt qspinbox editingFinished signal on value changed

不幸的是，当我使用此代码时：

self.spinbox.editingFinished.connect(self.on_spinbox_change_value)

。。。我得到：

...
  File "test/test.py", line 63, in __init__
    self.spinbox.editingFinished.connect(self.on_spinbox_change_value)
TypeError: decorated slot has no signature compatible with editingFinished()

所以，显然，这在PyQt5中不再是一种可能性了？有没有一个变通方法可以替代？你知道吗

---

编辑：一个最小的可复制示例：

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *

class Example(QWidget):
  def __init__(self):
    super(Example, self).__init__()
    self.initUI()

  def initUI(self):

    self.slider_hbox = QHBoxLayout()

    self.tspinbox = QSpinBox()
    self.tspinbox.setMinimumSize(1,1)
    self.tspinbox.setMaximum(100)

    #self.tspinbox.valueChanged.connect(self.on_tspinbox_change) # works, but reacts on every new character typed in textbox of spinbox
    self.tspinbox.editingFinished.connect(self.on_tspinbox_change) # TypeError: decorated slot has no signature compatible with editingFinished()

    self.slider_hbox.addWidget(self.tspinbox, 1)

    self.setLayout(self.slider_hbox)

    self.setGeometry(300, 300, 220, 170)
    self.setWindowTitle('Tester')
    self.show()

  @pyqtSlot(int)
  def on_tspinbox_change(self, value):
    print("on_tspinbox_change {}".format(value))


if __name__ == '__main__':
  app = QApplication(sys.argv)
  ex = Example()
  sys.exit(app.exec_())

Answer 1

事实上，它是有效的-我只是在粘贴@pyqtSlot(int)时出错了-它应该是@pyqtSlot()（分别是def on_tspinbox_change(self):）；下面是正确的代码：

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *

class Example(QWidget):
  def __init__(self):
    super(Example, self).__init__()
    self.initUI()

  def initUI(self):

    self.slider_hbox = QHBoxLayout()

    self.tspinbox = QSpinBox()
    self.tspinbox.setMinimumSize(1,1)
    self.tspinbox.setMaximum(100)

    #self.tspinbox.valueChanged.connect(self.on_tspinbox_change) # works, but reacts on every new character typed in textbox of spinbox
    self.tspinbox.editingFinished.connect(self.on_tspinbox_change) # works now, if not using int argument (so @pyqtSlot(), instead of @pyqtSlot(int), etc)

    self.slider_hbox.addWidget(self.tspinbox, 1)

    self.setLayout(self.slider_hbox)

    self.setGeometry(300, 300, 220, 170)
    self.setWindowTitle('Tester')
    self.show()

  @pyqtSlot()
  def on_tspinbox_change(self):
    print("on_tspinbox_change {}".format( self.tspinbox.value() ))


if __name__ == '__main__':
  app = QApplication(sys.argv)
  ex = Example()
  sys.exit(app.exec_())

现在，只有当您在spinbox文本字段中键入内容后按回车键时才有打印输出，而不是在spinbox文本字段中的每个按键上。。。你知道吗