Extrapolate from last arrival time about corvallis-bus-android HOT 4 OPEN

I'm also wondering whether if I figure out how to make this change and send a pull request that would be appreciated and pushed to the play store?

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Ah, this is something I didn't anticipate at all when I designed the favorites list. The content of it comes basically straight from the web API (see https://github.com/rikkigibson/corvallis-bus-server#favorites). This makes it easy to consistently present the information in the Android, iOS and web apps.

I think the simplest way to prevent the confusion is to add a modest timeout (maybe one second?) after making a request for new favorites list content which clears the favorites list. I think I'd prefer this because the estimates tend to fluctuate (i.e. going from 4 minutes to 1 minute over an actual period of 30 seconds). I would be happy to accept a PR for this and publish to Google Play.

If you really want to make the extrapolation happen, I can give suggestions on how to go about it, but it will either involve reimplementing some stuff from the server on the client side or doing some kinda hacky stuff.

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Thanks for the rapid response!

I don't care for the idea of adding a timeout, which would presumably cause the out-of-date information to simply disappear. That would be a significant improvement, but would still leave me waiting to get the new estimate.

Would extrapolation be something perhaps better handled on the server side, by changing the returned value to a time estimate rather than a minutes left estimate?

from corvallis-bus-android.

The most reasonable way probably involves pushing the arrival time "rendering" back over to the client side, which means reimplementing some part of what I did here on the client. You might also expose a new API endpoint which gives the favorites data in a more machine-friendly format. Maybe write out the List<FavoriteStop> instead of the List<FavoriteStopViewModel>? Then you can cache the response on the client side and re-render the human-friendly relative time strings as needed.

Let me know if there's anything I can do to help you spin up on dev'ing this.

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