当前位置:网站首页>Kivy教程之 08 倒计时App实现timer调用(教程含源码)
Kivy教程之 08 倒计时App实现timer调用(教程含源码)
2022-07-04 12:32:00 【知识大胖】
实战需求
倒计时App实现timer调用
运行效果

解决方案
1.引入Clock组件
from kivy.clock import Clock
2. Clock组件实现timer
def on_start(self):
Clock.schedule_interval(self.update, 0)
3. update回调更新界面
def update(self, nap):
# print('update')
if self.sw_started:
self.sw_seconds += nap
m, s = divmod(self.sw_seconds, 60)
self.root.ids.time.text = ('%02d:%02d.[size=40]%02d[/size]' %(int(m), int(s), int(s * 100 % 100)))
通过on_press来指定响应函数
完整代码
from kivy.app import App
from kivy.lang import Builder
from kivy.core.window import Window
from kivy.utils import get_co边栏推荐
- VBA, JSON interpretation, table structure -json string conversion
- 2021-08-09
- Foreach (system.out:: println) usage
- TCP fast retransmission sack mechanism
- Guava ImmutableSet. Builder source code analysis, shift original code, complement code, reverse code review
- ASP. Net razor – introduction to VB loops and arrays
- A few words explain redis cache penetration, breakdown, avalanche, and redis sentinel
- QQ get group settings
- [Yunju entrepreneurial foundation notes] Chapter II entrepreneur test 17
- Haproxy cluster
猜你喜欢

Experiment 7. IPv6
![[Yunju entrepreneurial foundation notes] Chapter II entrepreneur test 21](/img/73/4050a592fdd99bf06e8fd853b157b6.jpg)
[Yunju entrepreneurial foundation notes] Chapter II entrepreneur test 21

2021-08-09

(2021-08-20) web crawler learning 2

Detailed explanation of classic process synchronization problems

Method of setting default items in C # ComboBox control code

MPLS experiment

Memory computing integration: AI chip architecture in the post Moorish Era

13、 C window form technology and basic controls (3)

Awk getting started to proficient series - awk quick start
随机推荐
LxC shared directory permission configuration
LVS load balancing cluster deployment - Dr direct routing mode
[Yunju entrepreneurial foundation notes] Chapter II entrepreneur test 21
Clockwise rotation method of event arrangement -- PHP implementation
[Yunju entrepreneurial foundation notes] Chapter II entrepreneur test 11
MYCAT middleware installation and use
PKCs 5: password based cryptography specification version 2.1 Chinese Translation
The database connection code determines whether the account password is correct, but the correct account password always jumps to the failure page with wrong account password
Attributes and methods in math library
AI should take code agriculture? Deepmind offers a programming version of "Alpha dog" alphacode that surpasses nearly half of programmers!
Azure solution: how can third-party tools call azure blob storage to store data?
Pat 1059 prime factors (25 points) prime table
Here, the DDS tutorial you want | first experience of fastdds - source code compilation & Installation & Testing
template<typename MAP, typename LIST, typename First, typename ... Keytypes > recursive call with indefinite parameters - beauty of Pan China
[solve the error of this pointing in the applet] SetData of undefined
[Yunju entrepreneurial foundation notes] Chapter II entrepreneur test 8
Global function Encyclopedia
Haproxy cluster
Interview question MySQL transaction (TCL) isolation (four characteristics)
VBA, JSON interpretation, table structure -json string conversion