How to use timer to achieve page countdown effect in uniapp-uni-app-php.cn

How to use timer to achieve page countdown effect in uniapp

Uniapp is a cross-platform development framework that can be used to develop many types of applications, including applets, H5, Android, iOS, etc.

In Uniapp, the page countdown effect can be achieved using a timer. The timer can set a time interval and execute the specified code within each time interval to achieve the page countdown effect.

The following is an example that demonstrates how to use a timer to achieve a page countdown effect.

First, add the following code to the .vue file in the page where the countdown needs to be displayed:

Copy after login

In the above code, we define # through thedatafunction ##countdownVariable, used to store the countdown time. We also define atimervariable to store the timer object.

Call the

startCountdownmethod in theonShowlife cycle function, which will use thesetIntervalfunction to create a timer and set it at each time The countdown time is updated within the interval. If the countdown time is less than or equal to 0, stop the timer.

Call the

stopCountdownmethod in theonHidelife cycle function, which will stop the execution of the timer.

Finally, we display the value of the

countdownvariable in the template, so that we can see the page countdown effect.

The above is an example of using Uniapp to achieve the page countdown effect. You can modify and extend the code according to your own needs, such as modifying the countdown time, style, etc. Hope it helps you!

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