我有一个wxPython应用程序。这只是功能不重要的示例应用程序。
我可以在Ubuntu桌面上成功启动该程序，但是，在Windows 10上，我收到一个初始黑屏。直到我稍微调整屏幕大小时，应用程序的内容才会显示。
此问题有具体原因吗？
import wx
class MyFrame(wx.Frame):
""" We simply derive a new class of Frame. """
def __init__(self, parent, title):
super().__init__(parent, title=title, size=(600,400))
self.Show(True)
class ExamplePanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent)
# create some sizers
mainSizer = wx.BoxSizer(wx.VERTICAL)
grid = wx.GridBagSizer(hgap=5, vgap=5)
hSizer = wx.BoxSizer(wx.HORIZONTAL)
self.quote = wx.StaticText(self, label="Your quote: ")
grid.Add(self.quote, pos=(0,0))
# A multiline TextCtrl - This is here to show how the events work in this program, don't pay too much attention to it
self.logger = wx.TextCtrl(self, size=(200,300), style=wx.TE_MULTILINE | wx.TE_READONLY)
# A button
self.button =wx.Button(self, label="Save")
# the edit control - one line version.
self.lblname = wx.StaticText(self, label="Your name :")
grid.Add(self.lblname, pos=(1,0))
self.editname = wx.TextCtrl(self, value="Enter here your name", size=(140,-1))
grid.Add(self.editname, pos=(1,1))
# the combobox Control
self.sampleList = ['friends', 'advertising', 'web search', 'Yellow Pages']
self.lblhear = wx.StaticText(self, label="How did you hear from us ?")
grid.Add(self.lblhear, pos=(3,0))
self.edithear = wx.ComboBox(self, size=(95, -1), choices=self.sampleList, style=wx.CB_DROPDOWN)
grid.Add(self.edithear, pos=(3,1))
# add a spacer to the sizer
grid.Add((10, 40), pos=(2,0))
# Checkbox
self.insure = wx.CheckBox(self, label="Do you want Insured Shipment ?")
grid.Add(self.insure, pos=(4,0), span=(1,2), flag=wx.BOTTOM, border=5)
# Radio Boxes
radioList = ['blue', 'red', 'yellow', 'orange', 'green', 'purple', 'navy blue', 'black', 'gray']
rb = wx.RadioBox(self, label="What color would you like ?", pos=(20, 210), choices=radioList, majorDimension=3,
style=wx.RA_SPECIFY_COLS)
grid.Add(rb, pos=(5,0), span=(1,2))
hSizer.Add(grid, 0, wx.ALL, 5)
hSizer.Add(self.logger)
mainSizer.Add(hSizer, 0, wx.ALL, 5)
mainSizer.Add(self.button, 0, wx.CENTER)
self.SetSizerAndFit(mainSizer)
if __name__ == "__main__":
app = wx.App(useBestVisual=True)
frame = MyFrame(None, title="Demo with Notebook")
nb = wx.Notebook(frame)
nb.AddPage(ExamplePanel(nb), "Absolute Positioning")
nb.AddPage(ExamplePanel(nb), "Page Two")
nb.AddPage(ExamplePanel(nb), "Page Three")
frame.Show()
app.MainLoop()
答案 0 :(得分：0)
我发现解决方案是编写更整洁，更有条理的代码。除了更简洁的代码，我还在MainFrame的底部添加了以下内容。
# finally, put the notebook in a sizer for the panel to manage
# the layout
sizer = wx.BoxSizer()
sizer.Add(nb, 1, wx.EXPAND)
p.SetSizer(sizer)
sizer.Fit(p)
p.Layout()
下面的工作代码：
import wx
# Some classes to use for the notebook pages. Obviously you would
# want to use something more meaningful for your application, these
# are just for illustration.
class ExamplePanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent)
# create some sizers
mainSizer = wx.BoxSizer(wx.VERTICAL)
grid = wx.GridBagSizer(hgap=5, vgap=5)
hSizer = wx.BoxSizer(wx.HORIZONTAL)
self.quote = wx.StaticText(self, label="Your quote: ")
grid.Add(self.quote, pos=(0,0))
# A multiline TextCtrl - This is here to show how the events work in this program, don't pay too much attention to it
self.logger = wx.TextCtrl(self, size=(200,300), style=wx.TE_MULTILINE | wx.TE_READONLY)
# A button
self.button =wx.Button(self, label="Save")
# the edit control - one line version.
self.lblname = wx.StaticText(self, label="Your name :")
grid.Add(self.lblname, pos=(1,0))
self.editname = wx.TextCtrl(self, value="Enter here your name", size=(140,-1))
grid.Add(self.editname, pos=(1,1))
# the combobox Control
self.sampleList = ['friends', 'advertising', 'web search', 'Yellow Pages']
self.lblhear = wx.StaticText(self, label="How did you hear from us ?")
grid.Add(self.lblhear, pos=(3,0))
self.edithear = wx.ComboBox(self, size=(95, -1), choices=self.sampleList, style=wx.CB_DROPDOWN)
grid.Add(self.edithear, pos=(3,1))
# add a spacer to the sizer
grid.Add((10, 40), pos=(2,0))
# Checkbox
self.insure = wx.CheckBox(self, label="Do you want Insured Shipment ?")
grid.Add(self.insure, pos=(4,0), span=(1,2), flag=wx.BOTTOM, border=5)
# Radio Boxes
radioList = ['blue', 'red', 'yellow', 'orange', 'green', 'purple', 'navy blue', 'black', 'gray']
rb = wx.RadioBox(self, label="What color would you like ?", pos=(20, 210), choices=radioList, majorDimension=3,
style=wx.RA_SPECIFY_COLS)
grid.Add(rb, pos=(5,0), span=(1,2))
hSizer.Add(grid, 0, wx.ALL, 5)
hSizer.Add(self.logger)
mainSizer.Add(hSizer, 0, wx.ALL, 5)
mainSizer.Add(self.button, 0, wx.CENTER)
self.SetSizerAndFit(mainSizer)
class MainFrame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None, title="Simple Notebook Example")
# Here we create a panel and a notebook on the panel
p = wx.Panel(self)
nb = wx.Notebook(p)
# create the page windows as children of the notebook
page1 = ExamplePanel(nb)
page2 = ExamplePanel(nb)
page3 = ExamplePanel(nb)
# add the pages to the notebook with the label to show on the tab
nb.AddPage(page1, "Page 1")
nb.AddPage(page2, "Page 2")
nb.AddPage(page3, "Page 3")
# finally, put the notebook in a sizer for the panel to manage
# the layout
sizer = wx.BoxSizer()
sizer.Add(nb, 1, wx.EXPAND)
p.SetSizer(sizer)
sizer.Fit(p)
p.Layout()
if __name__ == "__main__":
app = wx.App()
MainFrame().Show()
app.MainLoop()