Python pyqt:messagebox在几秒钟后自动关闭
我试图做一个警告消息框,几秒钟后自动消失。 我已经完成了以下代码:Python pyqt:messagebox在几秒钟后自动关闭,python,pyqt,pyqt4,pyqt5,qmessagebox,Python,Pyqt,Pyqt4,Pyqt5,Qmessagebox,我试图做一个警告消息框,几秒钟后自动消失。 我已经完成了以下代码: def warning(self): messagebox = QtGui.QMessageBox(self) messagebox.setWindowTitle("wait") messagebox.setText("wait (closing automatically in {0} secondes.)".format(3)) messagebox.setStandardButtons(messag
def warning(self):
messagebox = QtGui.QMessageBox(self)
messagebox.setWindowTitle("wait")
messagebox.setText("wait (closing automatically in {0} secondes.)".format(3))
messagebox.setStandardButtons(messagebox.NoButton)
self.timer2 = QtCore.QTimer()
self.time_to_wait = 3
def close_messagebox(e):
e.accept()
self.timer2.stop()
self.time_to_wait = 3
def decompte():
messagebox.setText("wait (closing automatically in {0} secondes.)".format(self.time_to_wait))
if self.time_to_wait <= 0:
messagebox.closeEvent = close_messagebox
messagebox.close()
self.time_to_wait -= 1
self.connect(self.timer2,QtCore.SIGNAL("timeout()"),decompte)
self.timer2.start(1000)
messagebox.exec_()
def警告(自):
messagebox=QtGui.QMessageBox(self)
messagebox.setWindowTitle(“等待”)
messagebox.setText(“等待(在{0}秒内自动关闭)。”格式(3))
messagebox.Sets标准按钮(messagebox.NoButton)
self.timer2=QtCore.QTimer()
self.time_to_wait=3
def close_消息框(e):
e、 接受
self.timer2.stop()
self.time_to_wait=3
def decompate():
messagebox.setText(“等待(在{0}秒内自动关闭)。”格式(self.time_to_wait))
如果self.time\u to\u wait尝试我的解决方案,
我根据您的要求创建了一种新类型的QMessageBox
import sys
from PyQt4 import QtCore
from PyQt4 import QtGui
class TimerMessageBox(QtGui.QMessageBox):
def __init__(self, timeout=3, parent=None):
super(TimerMessageBox, self).__init__(parent)
self.setWindowTitle("wait")
self.time_to_wait = timeout
self.setText("wait (closing automatically in {0} secondes.)".format(timeout))
self.setStandardButtons(QtGui.QMessageBox.NoButton)
self.timer = QtCore.QTimer(self)
self.timer.setInterval(1000)
self.timer.timeout.connect(self.changeContent)
self.timer.start()
def changeContent(self):
self.setText("wait (closing automatically in {0} secondes.)".format(self.time_to_wait))
self.time_to_wait -= 1
if self.time_to_wait <= 0:
self.close()
def closeEvent(self, event):
self.timer.stop()
event.accept()
class Example(QtGui.QWidget):
def __init__(self):
super(Example, self).__init__()
btn = QtGui.QPushButton('Button', self)
btn.resize(btn.sizeHint())
btn.move(50, 50)
self.setWindowTitle('Example')
btn.clicked.connect(self.warning)
def warning(self):
messagebox = TimerMessageBox(5, self)
messagebox.exec_()
def main():
app = QtGui.QApplication(sys.argv)
ex = Example()
ex.show()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
导入系统
从PyQt4导入QtCore
从PyQt4导入QtGui
类TimerMessageBox(QtGui.QMessageBox):
def uuu init uuuu(self,timeout=3,parent=None):
super(TimerMessageBox,self)。\uuuu init\uuuu(父级)
self.setWindowTitle(“等待”)
self.time\u to\u wait=超时
self.setText(“等待(以{0}秒自动关闭)。”格式(超时))
self.sets标准按钮(QtGui.QMessageBox.NoButton)
self.timer=QtCore.QTimer(self)
自动定时器设置间隔(1000)
self.timer.timeout.connect(self.changeContent)
self.timer.start()
def更改内容(自我):
self.setText(“wait(在{0}秒内自动关闭)。”格式(self.time_to_wait))
self.time_to_wait-=1
如果self.time\u等待,尝试我的解决方案,您的计数器中会出现一个off by one错误。您应该将self.time\u to\u wait-=1
移动到changeContent
的末尾。然后,在启动计时器之前,移除setText
调用\uuuu init\uuuu
并调用self.changeContent()
。(附言:如果你用的话会更好。)@ekhumoro这是pyqt4,新型信号和插槽语法仅适用于pyqt5No,它们也在pyqt4中。我提供的链接是针对PyQt4文档的。@ekhumoro更新答案太棒了!但最重要的部分是一个错误导致的错误。您的代码从等待两秒钟开始,然后将文本更改为“4”,最后在“2”而不是“1”上停止。