Python Threading, loading one thread after another
I'm working on a media player and am able to load in a single .wav and play it. As seen in the code below.
foo = wx.FileDialog(self, message="Open a .wav file...", defaultDir=os.getcwd(), defaultFile="", style=wx.FD_MULTIPLE)
foo.ShowModal()
queue = foo.GetPaths()
开发者_如何学Pythonself.playing_thread = threading.Thread(target=self.playFile, args=(queue[0], 'msg'))
self.playing_thread.start()
But the problem is, when I try to make the above code into a loop for multiple .wav files. Such that while playing_thread.isActive == True, create and .start() the thread. Then if .isActive == False, pop queue[0] and load the next .wav file. Problem is, my UI will lock up and I'll have to terminate the program. Any ideas would be appreciated.
Since is using wx.python, use a Delayedresult, look at wx demos for a complete example.
Full minimal example:
import wx
import wx.lib.delayedresult as inbg
import time
class Player(wx.Frame):
def __init__(self):
self.titulo = "Music Player"
wx.Frame.__init__(self, None, -1, self.titulo,)
self.jobID = 0
self.Vb = wx.BoxSizer(wx.VERTICAL)
self.panel = wx.Panel(self,-1)
self.playlist = ['one','two']
self.abortEvent = inbg.AbortEvent()
self.msg = wx.StaticText(self.panel, -1, "...",pos=(30,-1))
self.msg.SetFont(wx.Font(9, wx.SWISS, wx.NORMAL, wx.BOLD))
self.action = wx.Button(self.panel, -1,"Play Playlist")
self.Bind(wx.EVT_BUTTON, self.StartPlaying,self.action)
self.Vb.Add(self.msg, 0, wx.EXPAND|wx.ALL, 3)
self.Vb.Add(self.action, 0, wx.EXPAND|wx.ALL, 3)
self.panel.SetSizer(self.Vb)
self.Show()
def StartPlaying(self,evt):
self.BgProcess(self.Playme)
def Playme(self,jobID, abortEvent):
print "in bg"
list = self.getPlayList()
print list
for music in list:
self.msg.SetLabel('Playing: %s' % music)
stop = 100
while stop > 0:
print stop
stop -=1
self.msg.SetLabel('Playing: %s [%s ]' % (music,stop))
def _resultConsumer(self, inbg):
jobID = inbg.getJobID()
try:
result = inbg.get()
return result
except Exception, exc:
return False
def getPlayList(self):
return self.playlist
def setPlayList(self,music):
self.playlist.appdend(music)
def BgProcess(self,executar):
self.abortEvent.clear()
self.jobID += 1
inbg.startWorker(self._resultConsumer, executar, wargs=(self.jobID,self.abortEvent), jobID=self.jobID)
app = wx.App(False)
demo = Player()
app.MainLoop()
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