urwid不更新loop.draw_screen()上的屏幕
urwid不更新loop.draw_screen()上的屏幕
提问于 2012-08-21 04:14:50
奇怪的是，当我运行程序时，它只更新屏幕20次中的1次…如果我按任何键，它也不会更新。如果以python code.py 2>log方式运行，则不会出现错误。在我用于内部日志记录的mylog.log中-它显示refresh()工作正常...
import urwid
from random import randint
import thread,logging
from time import sleep
logging.basicConfig(format = u'%(levelname)-8s [%(asctime)s] %(message)s', level = logging.CRITICAL, filename = u'mylog.log')
class ArRow (urwid.WidgetWrap):
def __init__ (self):
self.build_row()
w = urwid.Columns(self.item)
self.__super.__init__(w)
def build_row(self):
w=5
self.item = [
('fixed',w,urwid.AttrWrap(urwid.Text(str(randint(1,100))), 'body', 'focus')),
('fixed',w,urwid.AttrWrap(urwid.Text(str(randint(1,100))), 'body', 'focus')),
('fixed',w,urwid.AttrWrap(urwid.Text(str(randint(1,100))), 'body', 'focus')),
]
def refresh(self):
self.build_row()
w = urwid.Columns(self.item)
self.__super.__init__(w)
logging.critical(str(self.item))
def selectable (self):
return True
def keypress(self, size, key):
return key
palette = [
('body','dark cyan', '', 'standout','#0f6',''),
('focus','dark red', '', 'standout','light red',''),
]
def keystroke (input):
if input in ('q', 'Q'):
raise urwid.ExitMainLoop()
items=[ArRow()]#,ArRow(),ArRow(),ArRow(),ArRow()]
listbox = urwid.ListBox(urwid.SimpleListWalker(items))
view = urwid.Frame(urwid.AttrWrap(listbox, 'body'))
loop = urwid.MainLoop(view, palette, unhandled_input=keystroke)
loop.screen.set_terminal_properties(colors=256)
def live_report(*a):
while True:
items[0].refresh()
loop.draw_screen()
sleep(2)
thread.start_new(live_report,(0,))
loop.run()回答 2
Stack Overflow用户
回答已采纳
发布于 2012-08-21 05:51:20
解决方案：
class ArRow (urwid.WidgetWrap):
def __init__ (self):
self.build_row()
self._w = AColumns(self.item)
self.__super.__init__(self._w)
def build_row(self):
w=5
self.item = [
('fixed',w,urwid.AttrWrap(urwid.Text(str(randint(1,100))), 'body', 'focus')),
('fixed',w,urwid.AttrWrap(urwid.Text(str(randint(1,100))), 'body', 'focus')),
('fixed',w,urwid.AttrWrap(urwid.Text(str(randint(1,100))), 'body', 'focus')),
]
def refresh(self):
self.build_row()
self._w = AColumns(self.item)
#self.__super.__init__(w)
logging.critical(str(self.item))
......
def refresh(_loop,_data):
for item in items:
item.refresh()
#loop.draw_screen()
_loop.set_alarm_in(2,refresh)
loop.set_alarm_in(2,refresh)
loop.run()Stack Overflow用户
发布于 2014-05-15 07:34:46
你为什么不干脆
import threading
def refreshScreen(mainloop):
while 1:
logging.debug("looping")
mainloop.draw_screen()
time.sleep(1)
mainloop = urwid.MainLoop(top, palette)
refresh = Thread(target=refreshScreen, args=(mainloop,))
refresh.start()
mainloop.run()页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/12044463
复制相关文章
相似问题
腾讯云开发者
Copyright © 2013 - 2026 Tencent Cloud. All Rights Reserved. 腾讯云 版权所有
深圳市腾讯计算机系统有限公司 ICP备案/许可证号：粤B2-20090059 
粤公网安备44030502008569号
腾讯云计算（北京）有限责任公司 京ICP证150476号 | 京ICP备11018762号