在Kivy中实现计时器时遇到问题
问题描述 投票：0回答：1
我正在尝试创建一个kivy应用程序。应用程序的工作原理如下：
- 我通过主题'tafelxuren'发送我希望我的计时器通过MQTT持续的秒数（x是介于1和8之间的数字）。
- 在发送了我希望它持续的秒数之后，我使用命令'start'向主题'tafelxstart'（x是1到8之间的数字）发送第二个MQTT命令。
- 发送启动命令后，我的计时器开始运行。
在我的计时器下我有3个按钮，暂停，恢复和停止。虽然使用MQTT命令启动和暂停定时器工作，但我似乎无法使我的恢复按钮正常工作，如果在点击暂停按钮后还剩26秒，我希望我的定时器从该点恢复。相反，它从一开始就重新开始
我的main.py：
import os
if os.name == 'posix':
os.environ['KIVY_GL_BACKEND'] = 'gl'
import kivy, time,threading
from kivy.app import App
from kivy.uix.gridlayout import GridLayout
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.uix.widget import Widget
from kivy.properties import NumericProperty, ObjectProperty
from kivy.clock import Clock
from kivy.config import Config
import paho.mqtt.client as mqtt
Config.set('graphics', 'fullscreen', 'auto')
import paho.mqtt.publish as publish
import paho.mqtt.subscribe as subscribe
import config
# lege MQTT-client instantie
client = None
# De topics die gebruikt worden
ingesteldetijd = [config.timeTopics['tafel1'],config.timeTopics['tafel2'],config.timeTopics['tafel3'],config.timeTopics['tafel4'],config.timeTopics['tafel5'],config.timeTopics['tafel6'],config.timeTopics['tafel7'],config.timeTopics['tafel8']]
ingesteldetijdTopics = [config.tim1, config.tim2, config.tim3, config.tim4, config.tim5, config.tim6, config.tim7, config.tim8]
starttopics = [config.startTopics['tafel1'],config.startTopics['tafel2'],config.startTopics['tafel3'],config.startTopics['tafel4'],config.startTopics['tafel5'],config.startTopics['tafel6'],config.startTopics['tafel7'],config.startTopics['tafel8']]
def on_connect(client,userdata,flags,rc):
'''
This function gets triggered when MQTT is connected succesfully
'''
if(rc == 0):
print("[INFO ] [MQTT ] MQTT connected to broker "+config.settings['broker']+".")
client.subscribe('#')
##################################### ingestelde tijd subscriptions #####################################
for x in range(0,8):
client.subscribe(ingesteldetijd[x])
print('[INFO ] [MQTT ] Subscribed to '+ingesteldetijd[x])
##################################### ingestelde tijd subscriptions #####################################
##################################### start topic subscriptions #####################################
for x in range(0,8):
client.subscribe(starttopics[x])
print('[INFO ] [MQTT ] Subscribed to '+starttopics[x])
##################################### start topic subscriptions #####################################
else:
print("MQTT connection to broker "+config.settings['broker']+"failed.")
def on_message(client,userdata,msg):
'''
If there's a message received on one of the topics, the messages gets handled here.
'''
################################## tijd instellen topic ##################################
if msg.topic == 'tafel1uren':
config.tim1 = int(msg.payload.decode('utf-8'))
if msg.topic == 'tafel2uren':
config.tim2 = int(msg.payload.decode('utf-8'))
if msg.topic == 'tafel3uren':
config.tim3 = int(msg.payload.decode('utf-8'))
if msg.topic == 'tafel4uren':
config.tim4 = int(msg.payload.decode('utf-8'))
if msg.topic == 'tafel5uren':
config.tim5 = int(msg.payload.decode('utf-8'))
if msg.topic == 'tafel6uren':
config.tim6 = int(msg.payload.decode('utf-8'))
if msg.topic == 'tafel7uren':
config.tim7 = int(msg.payload.decode('utf-8'))
if msg.topic == 'tafel8uren':
config.tim8 = int(msg.payload.decode('utf-8'))
################################## tijd instellen topic ##################################
if msg.topic == config.startTopics['tafel1']:
if msg.payload.decode('utf-8') == 'start':
config.tb1start = True
if msg.payload.decode('utf-8') == 'stop':
config.tb1start = False
if msg.topic == config.startTopics['tafel2']:
if msg.payload.decode('utf-8') == 'start':
config.tb2start = True
if msg.payload.decode('utf-8') == 'stop':
config.tb2start = False
if msg.topic == config.startTopics['tafel3']:
if msg.payload.decode('utf-8') == 'start':
config.tb3start = True
if msg.payload.decode('utf-8') == 'stop':
config.tb3start = False
if msg.topic == config.startTopics['tafel4']:
if msg.payload.decode('utf-8') == 'start':
config.tb4start = True
if msg.payload.decode('utf-8') == 'stop':
config.tb4start = False
if msg.topic == config.startTopics['tafel5']:
if msg.payload.decode('utf-8') == 'start':
config.tb5start = True
if msg.payload.decode('utf-8') == 'stop':
config.tb5start = False
if msg.topic == config.startTopics['tafel6']:
if msg.payload.decode('utf-8') == 'start':
config.tb6start = True
if msg.payload.decode('utf-8') == 'stop':
config.tb6start = False
if msg.topic == config.startTopics['tafel7']:
if msg.payload.decode('utf-8') == 'start':
config.tb7start = True
if msg.payload.decode('utf-8') == 'stop':
config.tb7start = False
if msg.topic == config.startTopics['tafel8']:
if msg.payload.decode('utf-8') == 'start':
config.tb8start = True
if msg.payload.decode('utf-8') == 'stop':
config.tb8start = False
class CrudeTimerGrid(GridLayout):
_python_access = ObjectProperty(None)
time = NumericProperty(0)
def __init__(self,**kwargs):
super(CrudeTimerGrid,self).__init__(**kwargs)
self.runningTimer = 0
Clock.schedule_interval(self.load_times,1)
Clock.schedule_interval(self.start,1)
def load_times(self, *_):
tafelobjecten = self.parent.parent.ids
for x in range(0,8):
if list(tafelobjecten.values())[x] == self:
if str(list(tafelobjecten.keys())[x]) == 'tafel1':
self.time = config.tim1
if str(list(tafelobjecten.keys())[x]) == 'tafel2':
self.time = config.tim2
if str(list(tafelobjecten.keys())[x]) == 'tafel3':
self.time = config.tim3
if str(list(tafelobjecten.keys())[x]) == 'tafel4':
self.time = config.tim4
if str(list(tafelobjecten.keys())[x]) == 'tafel5':
self.time = config.tim5
if str(list(tafelobjecten.keys())[x]) == 'tafel6':
self.time = config.tim6
if str(list(tafelobjecten.keys())[x]) == 'tafel7':
self.time = config.tim7
if str(list(tafelobjecten.keys())[x]) == 'tafel8':
self.time = config.tim8
def start(self, *_):
tafelobjecten = self.parent.parent.ids
self.runningTimer = self.time
for x in range(0,8):
if list(tafelobjecten.values())[x] == self:
if str(list(tafelobjecten.keys())[x]) == 'tafel1':
#self.time = config.tim1
if config.tb1start == True:
if(self.runningTimer > 0):
Clock.schedule_interval(self.tick,1)
elif str(list(tafelobjecten.keys())[x]) == 'tafel2':
#self.time = config.tim2
if config.tb2start == True:
if(self.runningTimer > 0):
Clock.schedule_interval(self.tick,1)
elif str(list(tafelobjecten.keys())[x]) == 'tafel3':
#self.time = config.tim3
if config.tb3start == True:
if(self.runningTimer > 0):
Clock.schedule_interval(self.tick,1)
elif str(list(tafelobjecten.keys())[x]) == 'tafel4':
#self.time = config.tim4
if config.tb4start == True:
if(self.runningTimer > 0):
Clock.schedule_interval(self.tick,1)
elif str(list(tafelobjecten.keys())[x]) == 'tafel5':
#self.time = config.tim5
if config.tb5start == True:
if(self.runningTimer > 0):
Clock.schedule_interval(self.tick,1)
elif str(list(tafelobjecten.keys())[x]) == 'tafel6':
#self.time = config.tim6
if config.tb6start == True:
if(self.runningTimer > 0):
Clock.schedule_interval(self.tick,1)
elif str(list(tafelobjecten.keys())[x]) == 'tafel7':
#self.time = config.tim7
if config.tb7start == True:
if(self.runningTimer > 0):
Clock.schedule_interval(self.tick,1)
elif str(list(tafelobjecten.keys())[x]) == 'tafel8':
#self.time = config.tim8
if config.tb8start == True:
if(self.runningTimer > 0):
Clock.schedule_interval(self.tick,1)
def pause(self):
tafelobjecten = self.parent.parent.ids
for x in range(0,8):
if list(tafelobjecten.values())[x] == self:
if str(list(tafelobjecten.keys())[x]) == 'tafel1':
config.tb1start = False
Clock.unschedule(self.tick)
if str(list(tafelobjecten.keys())[x]) == 'tafel2':
config.tb2start = False
Clock.unschedule(self.tick)
if str(list(tafelobjecten.keys())[x]) == 'tafel3':
config.tb3start = False
Clock.unschedule(self.tick)
if str(list(tafelobjecten.keys())[x]) == 'tafel4':
config.tb4start = False
Clock.unschedule(self.tick)
if str(list(tafelobjecten.keys())[x]) == 'tafel5':
config.tb5start = False
Clock.unschedule(self.tick)
if str(list(tafelobjecten.keys())[x]) == 'tafel6':
config.tb6start = False
Clock.unschedule(self.tick)
if str(list(tafelobjecten.keys())[x]) == 'tafel7':
config.tb7start = False
Clock.unschedule(self.tick)
if str(list(tafelobjecten.keys())[x]) == 'tafel8':
config.tb8start = False
Clock.unschedule(self.tick)
def resume(self, *_):
tafelobjecten = self.parent.parent.ids
for x in range(0,8):
if list(tafelobjecten.values())[x] == self:
if str(list(tafelobjecten.keys())[x]) == 'tafel1':
config.tb1start = True
Clock.schedule_interval(self.tick,1)
if str(list(tafelobjecten.keys())[x]) == 'tafel2':
config.tb2start = True
Clock.schedule_interval(self.tick,1)
if str(list(tafelobjecten.keys())[x]) == 'tafel3':
config.tb3start = True
Clock.schedule_interval(self.tick,1)
if str(list(tafelobjecten.keys())[x]) == 'tafel4':
config.tb4start = True
Clock.schedule_interval(self.tick,1)
if str(list(tafelobjecten.keys())[x]) == 'tafel5':
config.tb5start = True
Clock.schedule_interval(self.tick,1)
if str(list(tafelobjecten.keys())[x]) == 'tafel6':
config.tb6start = True
Clock.schedule_interval(self.tick,1)
if str(list(tafelobjecten.keys())[x]) == 'tafel7':
config.tb7start = True
Clock.schedule_interval(self.tick,1)
if str(list(tafelobjecten.keys())[x]) == 'tafel8':
config.tb8start = True
Clock.schedule_interval(self.tick,1) #pass
def stop(self, *_):
#TODO: implement stop button
pass
def tick(self, *_):
tafelobjecten = self.parent.parent.ids
if self.runningTimer > 0:
self.runningTimer -= 1
# publish de juiste tafel topic met de waarde van de restrerende tijd
for x in range(0,8):
if list(tafelobjecten.values())[x] == self:
client.publish(topic = str(list(tafelobjecten.keys())[x]), payload = str(self.runningTimer))
self.ids.Changelabel.text = str(time.strftime('%H:%M:%S',time.gmtime(self.runningTimer)))
else:
pass
class Main(GridLayout):
pass
class CrudeTimerApp(App):
pass
if __name__ == '__main__':
client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message
client.username_pw_set(config.settings['username'], config.settings['password'])
client.connect(config.settings['broker'])
t = threading.Thread(target=client.loop_start())
t.daemon = True
t.start()
CrudeTimerApp().run()
我们.kv文件：
#:kivy 1.10.1
################################### Widget template ##########################################
<CrudeTimerGrid>:
_python_access: Changelabel
id: timer
rows: 4
BoxLayout:
size_hint_y: 0.15
orientation: 'horizontal'
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
Label:
font_size: 20
text: 'Restrerende tijd:'
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
Label:
font_size: 20
id: Changelabel
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
BoxLayout:
size_hint_y: 0.15
orientation: 'horizontal'
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
Label:
font_size: 20
text: 'Pauzetijd:'
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
Label:
font_size: 20
text: '00'
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
BoxLayout:
size_hint_y: 0.2
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
Button:
text: "Pauze"
on_press: timer.pause()
Button:
text: "Hervatten"
on_press: timer.resume()
Button:
text: "Stoppen"
#on_press: timer.reset()
Label:
text: ''
################################### Widget template ##########################################
<Main@Widget>:
rows: 2 # 2 rijen
cols: 4 # 4 colums
padding: 10
spacing: 10
################################### Tafel 1 ##########################################
BoxLayout:
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
orientation: 'vertical'
Label:
size_hint_y: 0.15
font_size: 25
canvas.before:
Color:
rgba: .5, .5, .5, 1
Rectangle:
pos: self.pos
size: self.size
text: 'Tafel 1'
CrudeTimerGrid:
id: tafel1
################################### Tafel 1 ##########################################
################################### Tafel 2 ##########################################
BoxLayout:
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
orientation: 'vertical'
Label:
size_hint_y: 0.15
font_size: 25
canvas.before:
Color:
rgba: .5, .5, .5, 1
Rectangle:
pos: self.pos
size: self.size
text: 'Tafel 2'
CrudeTimerGrid:
id: tafel2
################################### Tafel 2 ##########################################
################################### Tafel 3 ##########################################
BoxLayout:
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
orientation: 'vertical'
Label:
size_hint_y: 0.15
font_size: 25
canvas.before:
Color:
rgba: .5, .5, .5, 1
Rectangle:
pos: self.pos
size: self.size
text: 'Tafel 3'
CrudeTimerGrid:
id: tafel3
################################### Tafel 3 ##########################################
################################### Tafel 4 ##########################################
BoxLayout:
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
orientation: 'vertical'
Label:
size_hint_y: 0.15
font_size: 25
canvas.before:
Color:
rgba: .5, .5, .5, 1
Rectangle:
pos: self.pos
size: self.size
text: 'Tafel 4'
CrudeTimerGrid:
id: tafel4
################################### Tafel 4 ##########################################
################################### Tafel 5 ##########################################
BoxLayout:
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
orientation: 'vertical'
Label:
size_hint_y: 0.15
font_size: 25
canvas.before:
Color:
rgba: .5, .5, .5, 1
Rectangle:
pos: self.pos
size: self.size
text: 'Tafel 5'
CrudeTimerGrid:
id: tafel5
################################### Tafel 5 ##########################################
################################### Tafel 6 ##########################################
BoxLayout:
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
orientation: 'vertical'
Label:
size_hint_y: 0.15
font_size: 25
canvas.before:
Color:
rgba: .5, .5, .5, 1
Rectangle:
pos: self.pos
size: self.size
text: 'Tafel 6'
CrudeTimerGrid:
id: tafel6
################################### Tafel 6 ##########################################
################################### Tafel 7 ##########################################
BoxLayout:
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
orientation: 'vertical'
Label:
size_hint_y: 0.15
font_size: 25
canvas.before:
Color:
rgba: .5, .5, .5, 1
Rectangle:
pos: self.pos
size: self.size
text: 'Tafel 7'
CrudeTimerGrid:
id: tafel7
################################### Tafel 7 ##########################################
################################### Tafel 8 ##########################################
BoxLayout:
canvas.before:
Color:
rgba: .5, .5, .5, 1
Line:
width: 2
rectangle: self.x, self.y, self.width, self.height
orientation: 'vertical'
Label:
size_hint_y: 0.15
font_size: 25
canvas.before:
Color:
rgba: .5, .5, .5, 1
Rectangle:
pos: self.pos
size: self.size
text: 'Tafel 8'
CrudeTimerGrid:
id: tafel8
################################### Tafel 8 ##########################################
Main:
我的config.py：
# MQTT broker settings.
settings = dict(
broker = '172.16.24.128',
username = 'pi',
password = 'Piaservice123'
)
# start topics.
startTopics = dict(
tafel1 = 'tafel1start',
tafel2 = 'tafel2start',
tafel3 = 'tafel3start',
tafel4 = 'tafel4start',
tafel5 = 'tafel5start',
tafel6 = 'tafel6start',
tafel7 = 'tafel7start',
tafel8 = 'tafel8start'
)
# time in seconds topics.
timeTopics = dict(
tafel1 = 'tafel1uren',
tafel2 = 'tafel2uren',
tafel3 = 'tafel3uren',
tafel4 = 'tafel4uren',
tafel5 = 'tafel5uren',
tafel6 = 'tafel6uren',
tafel7 = 'tafel7uren',
tafel8 = 'tafel8uren'
)
# Currenttime topics.
currentTime = dict(
tafel1 = 'tafel1',
tafel2 = 'tafel2',
tafel3 = 'tafel3',
tafel4 = 'tafel4',
tafel5 = 'tafel5',
tafel6 = 'tafel6',
tafel7 = 'tafel7',
tafel8 = 'tafel8'
)
# Global timer vars
tim1 = 0
tim2 = 0
tim3 = 0
tim4 = 0
tim5 = 0
tim6 = 0
tim7 = 0
tim8 = 0
# startbooleans
tb1start = False
tb2start = False
tb3start = False
tb4start = False
tb5start = False
tb6start = False
tb7start = False
tb8start = False
所有魔法发生的类是CrudeTimerGrid()类。我怎样才能这样做，这样每次点击我的简历按钮时我的计时器都不会重置？
编辑：设法解决我的问题！我做了一个事件（self.event = Clock.schedule_interval(self.tick,1)）并有2个按钮来暂停和恢复。我使用暂停按钮（Clock.unschedule(self.event)）取消预定事件和恢复按钮（Clock.schedule_once(self.event)）来重新安排我的计时器。
1个回答
1
投票
投票
您将无法使用Clock.unschedule(self.tick)取消安排Kivy Clock活动。请参考下面的示例。
时间表
更换
Clock.schedule_interval(self.tick, 1)
同
self.event = Clock.schedule_interval(self.tick, 1)
取消调度
这样你就可以不使用任何一个
self.event.cancel()
要么
Clock.unschedule(self.event)
最新问题
- 如何在不破坏默认行为的情况下覆盖 __getattr__ ？
- sympy：如果某个符号用作除数，collected_expr.coeff() 总是返回 0？
- 使用 React Router 导航时使用 useNavigate() 时出错
- 如何设置 Telegram Bot 仅响应特定用户的消息？
- 为什么 Spring boot 不拒绝丢失的 RequestBody？
- 向量的对角矩阵
- NextJS 应用程序路由器 - 包罗万象，国际化
- 传递部分完整的构建器实例
- Python tkinter - 网格配置
- 如果我插入一个选项<sqlx::types::Json<Struct>> sqlx 会在数据库中写入文本“null”，而不是将该字段标记为 NULL
- Python：无法从超类获取属性
- 如何在图片框中同时显示更多图像
- Jfrog Artifactory 安装不工作
- Outlook 从收件箱中删除互联网标头（smtp 标头）
- 导致 swagger 已在 Web API 2 的路由集合中的错误是什么？
- 如何在 python 中创建一个函数，该函数接受一个对象，使用 CustomTkinter 修改它和其他对象的位置？
- DPDK 21.11.3，mlx connectX-5 存在巨型帧数据包问题
- 您可以通过一个 GTM 服务器端容器路由多个 GA4 帐户吗？
- 如何使用OpenAPI生成器maven插件来使用OpenAPI规范在Spring Boot中生成API和DTO？
- Common LISP 中的函数“position”与“gensym”一起工作很奇怪
© www.soinside.com 2019 - 2024. All rights reserved.