1. Background and usage When implementing various server-side systems on a daily basis, we will definitely have the need for some scheduled tasks. For example, automatic reminders for meetings half an hour in advance, scheduled/periodic execution of asynchronous tasks, etc. So how to implement such a scheduled task system? The Timer class provided by Java […]
Tag: timertask
Timer + TimerTask implements digital clock
Table of Contents Article directory Table of contents Timer + TimerTask implements digital clock 1. Topic 2. Structural analysis 3. Module mind map 4. Layout ⑴ view ⑵ Navigation bar LOGO ⑶ Android seven-segment digital tube font ⑷ Code 5. Activity ⑴ Private member variables ⑵ Custom initialization function ⑶ Navigation bar module ⑷ Background […]
Timer+TimerTask implements digital clock
Outcome display Layout The layout theme background color adopts #000000 (pure black), and the font color of each TextView adopts #FFFFFF (pure white). Use five TextViews to implement hours: minutes, seconds, am, pm, Sunday, and specific dates. Default layout Constraint relationship For the layout of several TextViews, we rely on a very practical method: Constraint(ConstraintLayout). […]
Timer + TimerTask implements digital clock
Task: Done by myself: Problem encountered: 14:50 it shows as 06:50, the time is displayed wrong, this is because the time zone is different. After 8.0, the time zone is set, and there are some changes. You can’t directly set the time zone such as GMT + 8:00. You need to set the id of […]