Background events in progressive web apps? (building an alarm clock app)

问题

I am playing around with progressive web apps, and one scenario I wanted to try building was an alarm clock app.

I figure to make this app work properly, it will have to run in the background and become active once the internal conditions (current time === alarm time) have been met.

Is this possible? Or do progressive web apps not yet have the freedom to operate in the background/access phone features through API's.

Thanks!

回答1:

Setting background timers isn't yet possible. The ScheduledTask API is probably do what you want, but it's still being discussed, implemented and so on.

来源：https://stackoverflow.com/questions/36944167/background-events-in-progressive-web-apps-building-an-alarm-clock-app