wxPython跨线程调用

本文将wx.CallAfter方法进行了封装，代码如下：

 import wx 
 
def call_after(func): 
    def _wrapper(*args, **kwargs): 
        return wx.CallAfter(func, *args, **kwargs) 
    return _wrapper 

import wx

def call_after(func):
    def _wrapper(*args, **kwargs):
        return wx.CallAfter(func, *args, **kwargs)

    return _wrapper当UI线程中的方法需要被非UI线程调用时，只有使用call_after进行修饰即可。如下对《wxPython多线程》中的实例改进：

 import time 
import wx 
  
from threading import Thread 
from wx.lib.pubsub import Publisher 
 
def call_after(func): 
    def _wrapper(*args, **kwargs): 
        return wx.CallAfter(func, *args, **kwargs) 
    return _wrapper 
 
class MyForm(wx.Frame): 
    #----------------------------------------------------------------------  
    def __init__(self): 
        wx.Frame.__init__(self, None, wx.ID_ANY, "Tutorial") 
  
        # Add a panel so it looks the correct on all platforms  
        panel = wx.Panel(self, wx.ID_ANY) 
        self.displayLbl = wx.StaticText(panel, label="Amount of time since thread started goes here") 
        self.btn = btn = wx.Button(panel, label="Start Thread") 
  
        btn.Bind(wx.EVT_BUTTON, self.onButton) 
  
        sizer = wx.BoxSizer(wx.VERTICAL) 
        sizer.Add(self.displayLbl, 0, wx.ALL|wx.CENTER, 5) 
        sizer.Add(btn, 0, wx.ALL|wx.CENTER, 5) 
        panel.SetSizer(sizer) 
  
        self._thread = Thread(target = self.run, args = ()) 
        self._thread.daemon = True 
         
 
    def run(self): 
        i = 0 
        while True: 
            i += 1 
            time.sleep(1) 
            self.updateDisplay('Seconds: %d' % i) 
 
    #----------------------------------------------------------------------  
    def onButton(self, event): 
        """
        Runs the thread
        """ 
        self._thread.start() 
        self.started = True 
        self.displayLbl.SetLabel("Thread started!") 
        btn = event.GetEventObject() 
        btn.Disable() 
 
    @call_after 
    def updateDisplay(self, msg): 
        """
        Receives data from thread and updates the display
        """ 
        self.displayLbl.SetLabel(msg) 
  
#----------------------------------------------------------------------  
# Run the program  
if __name__ == "__main__": 
    app = wx.PySimpleApp() 
    frame = MyForm().Show() 
    app.MainLoop() 

补充：Web开发 , Python ,

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