Multiple background services on a watchface

I'm experimenting with Background Services, and I wonder if it is possible to have multiple backgrounds running? As we have to return an array in `getServiceDelegate()`, it seems to be possible.

But when I have multiple services in there and set up a TemporalEvent, they both get initialised, so that's a good thing. But neither of them enters in `onTemporalEvent()`. When I have only one Background in `getServiceDelegate()`, it does actually enter the `onTemporalEvent()`.

How can I make this work with multiple Background Services?

0 jim_m_58 over 6 years ago

I'm not clear why you'd want this as even if you could have more than one, they would run at the same time (or more likely one right after the other)

Background.registerForTemporalEvent(new Time.Duration(5 * 60));

isn't specific to a service delegate.

nor is onBackGroundData();

In the API guide for getServiceDelegate, it has this:

An Array containing a System.ServiceDelegate

With the key being "a"

What is it you want to do?

0 VAW.BE over 6 years ago in reply to jim_m_58

Well, I'm trying to port https://kiezelpay.com to Garmin (it is now only available for Fitbit & Pebble).

So basically, a developer could download the KiezelPay lib, which uses a Background Service. But I can imagine developers also want to use Backgrounds for fetching weather or other stuff.

We could check on the response in `onBackGroundData()` if it's a KiezelPay response or not, if not, the developer can do his thing.

0 jim_m_58 over 6 years ago in reply to VAW.BE

A single background can handle multiple things. I recall a WF that gets stock data as well as weather data for example. Or you can do a widget or device app that can pull down data without a background process.

0 jim_m_58 over 6 years ago in reply to VAW.BE

Have you looked at "trial apps" in CIQ? Where a user can try an app and later pay?

0 VAW.BE over 6 years ago in reply to jim_m_58

Ok, I'll try to handle things with a single background.

0 VAW.BE over 6 years ago in reply to jim_m_58

I have looked into these, but as I understand correctly, these trials are not available for watch faces?

0 jim_m_58 over 6 years ago in reply to VAW.BE

Not sure, as I've never used trial apps. (all my stuff is free).

What some do is allow a free/limited version that expires, unless the user pays and gets an unlock code.

0 Seli17 over 4 years ago in reply to jim_m_58

I have a similar problem.
I wanted to call 2 WebServices in one single BackgroundService, but then only ONE is calling the

method(:onReceived), the (first) one never returns an onReceivedFirst

So I tried with 2 BackgroundServices with each having ONE makeWebRequest, but then neither one comes to

function onTemporalEvent()

What do you suggest?