如何防止 gui 在 wxpython 中冻结？

Question

[问题] 如果我单击触发函数的按钮，则 gui 将冻结，直到函数结束。

[代码]

import wx
app = wx.App(redirect=False)
top = wx.Frame(None)
top.Maximize(True) # Set to maximize the application
sizer = wx.GridBagSizer()

def testFunction(event):
    import pyautogui
    import time
    pyautogui.FAILSAFE = False
    for i in range(2):
            pyautogui.hotkey('win','r')
            time.sleep (0.5)
            pyautogui.typewrite('cmd.exe')
            time.sleep (0.5)
            pyautogui.hotkey('enter')
            time.sleep (0.5)
            time.sleep (3)


addButton = wx.Button( top, -1, "Start", style=wx.BU_EXACTFIT )
sizer.Add(addButton, (6, 8), (2, 14), wx.EXPAND)
top.Bind(wx.EVT_BUTTON, testFunction, addButton)
top.Sizer = sizer
top.Sizer.Fit(top)
top.Show()
app.MainLoop()

[当前] gui 冻结，直到函数结束。

[期望] gui 不应冻结。注意：我认为这与线程有关，但我不能完全理解这个概念。

Answer 1

使用 wx.CallLater 将在给定时间后调用带有参数的给定可调用对象。函数 testFunction 的结构应该更改为：

def testFunction(event):
    import pyautogui
    pyautogui.FAILSAFE = False

    def step1(i):
        pyautogui.hotkey('win','r')
        wx.CallLater(500, step2, i)
    def step2(i):
        pyautogui.typewrite('cmd.exe')
        wx.CallLater(500, step3, i)
    def step3(i):
        pyautogui.hotkey('enter')
        if i <= 1:
            return
        wx.CallLater(3500, step1, i-1)

    step1(2)

Answer 2

我对 ex 不太熟悉，但也许这有帮助

import wx
import threading
app = wx.App(redirect=False)
top = wx.Frame(None)
top.Maximize(True) # Set to maximize the application
sizer = wx.GridBagSizer()

def testFunction(event):
    import pyautogui
    import time
    pyautogui.FAILSAFE = False
    for i in range(2):
            pyautogui.hotkey('win','r')
            time.sleep (0.5)
            pyautogui.typewrite('cmd.exe')
            time.sleep (0.5)
            pyautogui.hotkey('enter')
            time.sleep (0.5)
            time.sleep (3)

t1 = threading.Thread(target=testFunction, args=[])    

addButton = wx.Button( top, -1, "Start", style=wx.BU_EXACTFIT )
sizer.Add(addButton, (6, 8), (2, 14), wx.EXPAND)
top.Bind(wx.EVT_BUTTON, t1, addButton)
top.Sizer = sizer
top.Sizer.Fit(top)
top.Show()
app.MainLoop()

Answer 3

好吧，这对我有用：

# -*- coding: utf-8 -*-
import wx
app = wx.App(redirect=False)
top = wx.Frame(None)
top.Maximize(False) # Set to maximize the application
sizer = wx.GridBagSizer()

def testFunction(event):
    import time
    for i in range(2):
        print ('win','r')
        time.sleep (0.5)
        print ('cmd.exe')
        time.sleep (0.5)
        print ('enter')
        time.sleep (0.5)
        print 'sleep'
        time.sleep (3)
        print u"Iteración %d".format(i+1)

def thread_start(event):
    import threading
    th = threading.Thread(target=testFunction, args=(event,))
    th.start()



addButton = wx.Button( top, -1, "Start", style=wx.BU_EXACTFIT )
sizer.Add(addButton, (6, 8), (2, 14), wx.EXPAND)
# top.Bind(wx.EVT_BUTTON, testFunction, addButton)
top.Bind(wx.EVT_BUTTON, thread_start, addButton)
top.Sizer = sizer
top.Sizer.Fit(top)
top.Show()
app.MainLoop()

你有一个不闪烁的图形用户界面。您可以从它开始并添加输入变量（例如获取和识别您的线程，这样您就可以知道正在调用哪个线程）。

我删除了 py2autogui 库，因为我没有安装它（并且对于示例来说不是必需的）。

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