小贝子编程

Kivy:异步更新标签



我是python的新手，我正在用kivy写这个程序，当我打开程序时告诉我它是哪个类，但我想更新我连续处于哪个主题的标签，但当我尝试使用while循环时，我无法运行任何其他东西。我想运行Main类。不断checkclass。

下面是我的python代码: 
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.properties import ObjectProperty
from kivy.core.clipboard import Clipboard
from kivy.config import Config
from datetime import datetime
from kivy.app import App
import webbrowser
# ===========
Config.set('graphics', 'width', '1200')
Config.set('graphics', 'height', '600')
# ===========
with open("data.txt", "r") as a:
All = a.readlines()
# ===========
ver = str.split(str.split(All[1], " = ")[1])
ver = ''.join(ver)
# ===========
Mon = str.split(str.split(All[3], " = ")[1])
Tue = str.split(str.split(All[4], " = ")[1])
Wed = str.split(str.split(All[5], " = ")[1])
Thu = str.split(str.split(All[6], " = ")[1])
Fri = str.split(str.split(All[7], " = ")[1])
Sat = str.split(str.split(All[8], " = ")[1])
# ===========
Math = str.split(str.split(All[10], " = ")[1])[0]
KNM = str.split(str.split(All[11], " = ")[1])[0]
Chem = str.split(str.split(All[12], " = ")[1])[0]
Lit = str.split(str.split(All[13], " = ")[1])[0]
Phys = str.split(str.split(All[14], " = ")[1])[0]
PE = str.split(str.split(All[15], " = ")[1])[0]
# ===========
Days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]
Subject = ["Math", "KNM", "Chem", "Lit", "Phys", "PE"]
# ===========
Time = ["01:00 - 08:45",
"08:45 - 09:35",
"09:35 - 10:40",
"10:40 - 11:30"]
# ===========
Trans = [
"Math", "Toán",
"KNM", "Kỹ năng mềm",
"Chem", "Hóa học",
"Lit", "Ngữ Văn",
"Phys", "Vật lí",
"PE", "Vovinam",
"No class right now", "Không có lớp",
"No class on Sunday", "Không học vào chủ nhật"]

def timecompare(time, clas):
hr = time[:2]
minu = time[-2:]
mi = clas[:5]
ma = clas[-5:]
hrmin = mi[:2]
minumin = mi[-2:]
hrmax = ma[:2]
minumax = ma[-2:]
var = False
if hrmin <= hr <= hrmax:
if hr == hrmin and minumin <= minu:
var = True
if hr == hrmax and minu <= minumax:
var = True
if hrmin < hr < hrmax:
var = True
print(var)
return var

def findclass(time, timelist):
clas = 0
for x in range(4):
value = timecompare(time, timelist[x])
if value is True:
clas = x + 1
return clas

def checksubject(timenow, timer):
now = datetime.now()
day = now.strftime("%a")
subject = "No class right now"
clas = findclass(timenow, timer)
if clas != 0:
for i in range(len(Days)):
if day == Days[i]:
subject = eval(Days[i])[clas - 1]
if day == "Sun":
subject = "No class on Sunday"
return subject

class Main(Screen):
ip = ObjectProperty(None)
text = ObjectProperty(None)
ver = ObjectProperty(None)
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.checkclass()
self.ver.text = "  version: " + ver
def checkclass(self):
now = datetime.now()
nowtime = now.strftime("%H:%M")
subject = Trans.index(checksubject(nowtime, Time)) + 1
self.text.text = Trans[subject]
nowtime = now.strftime("%H:%M")
subject = checksubject(nowtime, Time)
ip = None
for x in range(len(Subject)):
if subject == Subject[x]:
ip = eval(Subject[x])
if ip is not None:
self.ip.text = ip
else:
self.ip.text = ""
@staticmethod
def joinclass():
now = datetime.now()
nowtime = now.strftime("%H:%M")
subject = checksubject(nowtime, Time)
ip = None
for x in range(len(Subject)):
if subject == Subject[x]:
ip = eval(Subject[x])
if ip is not None:
webbrowser.open_new_tab(ip)
def copy(self):
super()
self.checkclass()
if self.ip.text != "":
Clipboard.copy(self.ip.text)

class TKB(Screen):
ver = ObjectProperty(None)
a2 = ObjectProperty(None)
a3 = ObjectProperty(None)
a4 = ObjectProperty(None)
a5 = ObjectProperty(None)
a6 = ObjectProperty(None)
a7 = ObjectProperty(None)
b2 = ObjectProperty(None)
b3 = ObjectProperty(None)
b4 = ObjectProperty(None)
b5 = ObjectProperty(None)
b6 = ObjectProperty(None)
b7 = ObjectProperty(None)
c2 = ObjectProperty(None)
c3 = ObjectProperty(None)
c4 = ObjectProperty(None)
c5 = ObjectProperty(None)
c6 = ObjectProperty(None)
c7 = ObjectProperty(None)
d2 = ObjectProperty(None)
d3 = ObjectProperty(None)
d4 = ObjectProperty(None)
d5 = ObjectProperty(None)
d6 = ObjectProperty(None)
d7 = ObjectProperty(None)
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.ver.text = "  version: " + ver
self.a2.text = Trans[Trans.index(Mon[0]) + 1]
self.b2.text = Trans[Trans.index(Mon[1]) + 1]
self.c2.text = Trans[Trans.index(Mon[2]) + 1]
self.d2.text = Trans[Trans.index(Mon[3]) + 1]
self.a3.text = Trans[Trans.index(Tue[0]) + 1]
self.b3.text = Trans[Trans.index(Tue[1]) + 1]
self.c3.text = Trans[Trans.index(Tue[2]) + 1]
self.d3.text = Trans[Trans.index(Tue[3]) + 1]
self.a4.text = Trans[Trans.index(Wed[0]) + 1]
self.b4.text = Trans[Trans.index(Wed[1]) + 1]
self.c4.text = Trans[Trans.index(Wed[2]) + 1]
self.d4.text = Trans[Trans.index(Wed[3]) + 1]
self.a5.text = Trans[Trans.index(Thu[0]) + 1]
self.b5.text = Trans[Trans.index(Thu[1]) + 1]
self.c5.text = Trans[Trans.index(Thu[2]) + 1]
self.d5.text = Trans[Trans.index(Thu[3]) + 1]
self.a6.text = Trans[Trans.index(Fri[0]) + 1]
self.b6.text = Trans[Trans.index(Fri[1]) + 1]
self.c6.text = Trans[Trans.index(Fri[2]) + 1]
self.d6.text = Trans[Trans.index(Fri[3]) + 1]
self.a7.text = Trans[Trans.index(Sat[0]) + 1]
self.b7.text = Trans[Trans.index(Sat[1]) + 1]
self.c7.text = Trans[Trans.index(Sat[2]) + 1]
self.d7.text = Trans[Trans.index(Sat[3]) + 1]

class ClassRemindApp(App):
def build(self):
sm = ScreenManager()
sm.add_widget(Main(name='Main'))
sm.add_widget(TKB(name='TKB'))
return sm

if __name__ == "__main__":
ClassRemindApp().run()

kv文件:

<Main>
text: text
ip: ip
ver: ver
canvas:
Rectangle:
pos: 0, root.height / 5 * 4 - 2
size: root.width, 4
Rectangle:
pos: 0, root.height / 5 * 0.7 - 2
size: root.width, 4
Rectangle:
pos: 0, root.height / 5 * 0.2 - 2
size: root.width, 4
Rectangle:
pos: 0, root.height - 2
size: root.width, 4
Rectangle:
pos: 0, 0 - 2
size: root.width, 4
Rectangle:
pos: 0 - 2, 0
size: 4, root.height
Rectangle:
pos: root.width - 2, 0
size: 4, root.height
Rectangle:
pos: root.width / 6 - 2, root.height / 5 * 0.2 - 2
size: 4, root.height
GridLayout:
cols: 1
rows: 4
GridLayout:
cols: 2
rows: 1
Button:
text: "Xem lớp"
font_size: 30
on_press: root.checkclass()
size_hint: 0.2, 1
Label:
text: "Không có lớp"
font_size: 30
id: text
GridLayout:
cols: 2
rows: 1
size_hint: 1, 3.3
Button:
size_hint: 0.2, 1
text: "Xem TKB"
font_size: 30
on_press:
root.manager.transition.direction = 'left'
root.manager.current = 'TKB'
Button:
text: "Mở link"
font_size: root.width * root.height / 4000
on_press: root.joinclass()
GridLayout:
cols: 2
rows: 1
size_hint: 1, 0.5
Button:
text: "Copy link"
font_size: 30
size_hint: 0.2, 1
on_press: root.copy()
Label:
text: ""
font_size : 30
id: ip
halign: 'left'
valign: 'middle'
Label:
text: ""
id: ver
size_hint: 1, 0.2
text_size: self.size
halign: 'left'
valign: 'middle'
<TKB>
a2: a2
a3: a3
a4: a4
a5: a5
a6: a6
a7: a7
b2: b2
b3: b3
b4: b4
b5: b5
b6: b6
b7: b7
c2: c2
c3: c3
c4: c4
c5: c5
c6: c6
c7: c7
d2: d2
d3: d3
d4: d4
d5: d5
d6: d6
d7: d7
ver: ver
canvas:
Rectangle:
pos: 0, root.height - 2
size: root.width, 4
Rectangle:
pos: 0, 0 - 2
size: root.width, 4
Rectangle:
pos: 0 - 2, 0
size: 4, root.height
Rectangle:
pos: root.width - 2, 0
size: 4, root.height
Rectangle:
pos: 0, root.height / 5 * 0.2 - 2
size: root.width, 4
Rectangle:
pos: root.width / 6 - 2, root.height * 0.04
size: 4, root.height
Rectangle:
pos: root.width / 6 - 2 + root.width * 0.14, root.height * 0.04
size: 4, root.height * 0.16 * 2
Rectangle:
pos: root.width / 6 - 2 + root.width * 0.14 * 2, root.height * 0.04
size: 4, root.height * 0.16 * 2
Rectangle:
pos: root.width / 6 - 2 + root.width * 0.14 * 3, root.height * 0.04
size: 4, root.height * 0.16 * 2
Rectangle:
pos: root.width / 6 - 2 + root.width * 0.14 * 4, root.height * 0.04
size: 4, root.height * 0.16 * 2
Rectangle:
pos: root.width / 6 - 2 + root.width * 0.14 * 5, root.height * 0.04
size: 4, root.height * 0.16 * 2
Rectangle:
pos: root.width / 6 - 2 + root.width * 0.14 * 1, root.height * 0.04 + root.height * 0.16 * 3
size: 4, root.height * 0.16 * 3
Rectangle:
pos: root.width / 6 - 2 + root.width * 0.14 * 2, root.height * 0.04 + root.height * 0.16 * 3
size: 4, root.height * 0.16 * 3
Rectangle:
pos: root.width / 6 - 2 + root.width * 0.14 * 3, root.height * 0.04 + root.height * 0.16 * 3
size: 4, root.height * 0.16 * 3
Rectangle:
pos: root.width / 6 - 2 + root.width * 0.14 * 4, root.height * 0.04 + root.height * 0.16 * 3
size: 4, root.height * 0.16 * 3
Rectangle:
pos: root.width / 6 - 2 + root.width * 0.14 * 5, root.height * 0.04 + root.height * 0.16 * 3
size: 4, root.height * 0.16 * 3
Rectangle:
pos: root.width / 6, root.height * 0.04 + root.height * 0.16 - 2
size: root.width, 4
Rectangle:
pos: root.width / 6, root.height * 0.04 + root.height * 0.16 * 2 - 2
size: root.width, 4
Rectangle:
pos: root.width / 6, root.height * 0.04 + root.height * 0.16 * 3 - 2
size: root.width, 4
Rectangle:
pos: root.width / 6, root.height * 0.04 + root.height * 0.16 * 4 - 2
size: root.width, 4
Rectangle:
pos: root.width / 6, root.height * 0.04 + root.height * 0.16 * 5 - 2
size: root.width, 4
GridLayout:
cols: 1
rows: 2
GridLayout:
cols: 2
rows: 1
Button:
size_hint: 0.2, 1
text: 'Quay về'
font_size: 30
on_press:
root.manager.transition.direction = 'right'
root.manager.current = 'Main'
GridLayout:
cols: 1
rows: 3
GridLayout:
size_hint: 1, 1.5
cols: 6
rows: 3
Label:
font_size: 30
text: 'Thứ 2'
Label:
font_size: 30
text: 'Thứ 3'
Label:
font_size: 30
text: 'Thứ 4'
Label:
font_size: 30
text: 'Thứ 5'
Label:
font_size: 30
text: 'Thứ 6'
Label:
font_size: 30
text: 'Thứ 7'
Label:
font_size: 20
id: a2
text: ''
Label:
font_size: 20
id: a3
text: ''
Label:
font_size: 20
id: a4
text: ''
Label:
font_size: 20
id: a5
text: ''
Label:
font_size: 20
id: a6
text: ''
Label:
font_size: 20
id: a7
text: ''
Label:
font_size: 20
id: b2
text: ''
Label:
font_size: 20
id: b3
text: ''
Label:
font_size: 20
id: b4
text: ''
Label:
font_size: 20
id: b5
text: ''
Label:
font_size: 20
id: b6
text: ''
Label:
font_size: 20
id: b7
text: ''
Label:
size_hint: 1, 0.5
font_size: 30
text: 'Nghỉ 20p'
GridLayout:
cols: 6
rows: 2
Label:
font_size: 20
id: c2
text: ''
Label:
font_size: 20
id: c3
text: ''
Label:
font_size: 20
id: c4
text: ''
Label:
font_size: 20
id: c5
text: ''
Label:
font_size: 20
id: c6
text: ''
Label:
font_size: 20
id: c7
text: ''
Label:
font_size: 20
id: d2
text: ''
Label:
font_size: 20
id: d3
text: ''
Label:
font_size: 20
id: d4
text: ''
Label:
font_size: 20
id: d5
text: ''
Label:
font_size: 20
id: d6
text: ''
Label:
font_size: 20
id: d7
text: ''
Label:
text: ""
id: ver
size_hint: 1, 0.04
text_size: self.size
halign: 'left'
valign: 'middle'

和data.txt文件:

========================
ver = 2.0c
========================
Mon = Math Math KNM KNM
Tue = Chem Chem Phys Phys
Wed = Lit Lit Phys Phys
Thu = Chem Chem PE PE
Fri = Math Math Phys Phys
Sat = Chem Chem Math Math
========================
Math = https://meet.google.com/[link hidden]
KNM = https://meet.google.com/[link hidden]
Chem = https://meet.google.com/[link hidden]
Lit = https://meet.google.com/[link hidden]
Phys = https://meet.google.com/[link hidden]
PE = https://meet.google.com/[link hidden]
========================

您需要了解异步、线程和协同处理。Python需要被告知你想要异步完成任务。

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