How to SetFoucus to mainpanel or mainframe

Question

此代码来自于网站中弹出窗口问题的答案之一。我想让子框架在点击textctrl时打开，同时关闭主机，并在单击“保存并关闭”按钮后将数据传输回主机，代码现在可以打开子窗口并关闭主窗口，但是，每次我单击“保存并关闭”按钮时，主窗口都会在一秒内出现，子窗口再次显示。我假设焦点是自动设置到文本框上的，所以您可以帮助将焦点设置到主面板或大型机来解决问题。

import wx
from wx.lib.pubsub import Publisher


########################################################################
class OtherFrame(wx.Frame):
    """"""

    #----------------------------------------------------------------------
    def __init__(self):
        """Constructor"""
        wx.Frame.__init__(self, None, wx.ID_ANY, "Secondary Frame")
        panel = wx.Panel(self)

        msg = "Enter a Message to send to the main frame"
        instructions = wx.StaticText(panel, label=msg)
        self.msgTxt = wx.TextCtrl(panel, value="")
        closeBtn = wx.Button(panel, label="Send and Close")
        closeBtn.Bind(wx.EVT_BUTTON, self.onSendAndClose)

        sizer = wx.BoxSizer(wx.VERTICAL)
        flags = wx.ALL|wx.CENTER
        sizer.Add(instructions, 0, flags, 5)
        sizer.Add(self.msgTxt, 0, flags, 5)
        sizer.Add(closeBtn, 0, flags, 5)
        panel.SetSizer(sizer)

    #----------------------------------------------------------------------
    def onSendAndClose(self, event):
        """
        Send a message and close frame
        """
        msg = self.msgTxt.GetValue()
        Publisher().sendMessage(("show.mainframe"), msg)
        self.Close()


########################################################################
class MainPanel(wx.Panel):
    """"""

    #----------------------------------------------------------------------
    def __init__(self, parent):
        """Constructor"""
        wx.Panel.__init__(self, parent=parent)
        self.frame = parent

        Publisher().subscribe(self.showFrame, ("show.mainframe"))


        self.pubsubText = wx.TextCtrl(self, value="")

        self.pubsubText.Bind(wx.EVT_SET_FOCUS,self.hideFrame)


        Btn = wx.Button(self, label="Change")

        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.pubsubText, 0, wx.ALL|wx.CENTER, 5)
        sizer.Add(Btn, 0, wx.ALL|wx.CENTER, 5)
        self.SetSizer(sizer)

    #----------------------------------------------------------------------
    def hideFrame(self, event):
        """"""
        self.frame.Hide()
        new_frame = OtherFrame()
        new_frame.Show()

    #----------------------------------------------------------------------
    def showFrame(self, msg):
        """
        Shows the frame and shows the message sent in the
        text control
        """
        self.pubsubText.SetValue(msg.data)
        frame = self.GetParent()
        frame.Show()

########################################################################
class MainFrame(wx.Frame):

    #----------------------------------------------------------------------
    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "Pubsub Tutorial")
        panel = MainPanel(self)

#----------------------------------------------------------------------
if __name__ == "__main__":
    app = wx.App(False)
    frame = MainFrame()
    frame.Show()
    app.MainLoop()