我有一个框架作为启动屏幕存在,供用户在主程序启动前进行选择。在用户进行选择后,我需要屏幕保持一种闪屏,直到主程序完成加载。
我是通过创建应用程序并启动一个线程来完成的:
class App(wx.App):
'''
Creates the main frame and displays it
Returns true if successful
'''
def OnInit(self):
try:
'''
Initialization
'''
self.newFile = False
self.fileName = ""
self.splashThread = Splash.SplashThread(logging, self)
self.splashThread.start()
#...More to the class
启动框架:
class SplashThread(threading.Thread):
def __init__(self, logger, app):
threading.Thread.__init__(self)
self.logger = logger
self.app = app
def run(self):
frame = Frame(self.logger, self.app)
frame.Show()
需要app值,因为它包含回调,允许主程序在用户进行选择时继续。问题是启动屏幕只闪烁一毫秒然后消失,不允许用户进行选择并阻止其余的启动。
有什么想法吗?提前谢谢!
答案 0 :(得分:0)
你不需要线程。缺点是启动窗口会在加载时阻塞,但只有当您想要更新它的内容(为其设置动画)或者您希望能够拖动它时才会出现问题。可以通过定期调用wx.SafeYield
来解决这个问题。
import time
import wx
class Loader(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None)
sizer = wx.BoxSizer(wx.VERTICAL)
self.SetSizer(sizer)
self.btn1 = wx.Button(self, label="Option 1")
self.btn2 = wx.Button(self, label="Option 2")
sizer.Add(self.btn1, flag=wx.EXPAND)
sizer.Add(self.btn2, flag=wx.EXPAND)
self.btn1.Bind(wx.EVT_BUTTON, self.OnOption1)
self.btn2.Bind(
wx.EVT_BUTTON, lambda e: wx.MessageBox("There is no option 2")
)
def OnOption1(self, event):
self.btn1.Hide()
self.btn2.Hide()
self.Sizer.Add(
wx.StaticText(self, label="Loading Option 1..."),
1, wx.ALL | wx.EXPAND, 15
)
self.Layout()
self.Update()
AppFrame(self).Show()
class AppFrame(wx.Frame):
def __init__(self, parent):
wx.Frame.__init__(self, parent)
time.sleep(3)
parent.Hide()
# the top window (Loader) is hidden so the app needs to be told to exit
# when this window is closed
self.Bind(wx.EVT_CLOSE, lambda e: wx.GetApp().ExitMainLoop())
app = wx.PySimpleApp()
app.TopWindow = Loader()
app.TopWindow.Show()
app.MainLoop()