Not fetching on closed app (stopOnTerminate: false) about react-native-background-fetch HOT 10 CLOSED

Forget about react-native-geolocation, it's no good. Tracking a device in the background is complex. If you want to track a device in the background, use my react-native-background-geolocation it's the best you'l'l find. I've been working on this for almost 4 years.

My react-native-background-geolocation WILL continue tracking, even if user terminates the app.

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If user terminates the app, fetch ceases.

If os terminates app (eg: due to memory pressure, fetch will not cease.

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@christocracy Is there a way to have background fetching after app gets closed by user using other methods?

And did I miss these subtleties in your doc?

Thank you.

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When user terminates the app, background fetch is ceased, period.

There is no hope for a background fetch to occur after user explicitly terminates the app.

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Hey @christocracy, one last question for you.

Does having a background location fetch super seed your module? I ask this because I have both going on and I can see the geolocation refresh in the background but not your module. I left it running all night.

Thank you.

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This is not background "location fetch". This module has nothing to do with location. It's merely an iOS mechanism that awakens an app in background, providing 30s of bg time.

No this module does not supercede background Geolocation, in fact it was designed as a dependency for it.

If simulate background fetch works in Xcode, that's all you need to know. Apple's fetch algorithm is a black box based upon usage behaviour. It's pointless to "wait" for fetch to occur. Just use the app like a user would and the algorithm will "learn" your behaviour and fetches will come.

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Are you using my react-native-background-geolocation module for location?

https://github.com/transistorsoft/react-native-background-geolocation

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Hello @christocracy thank you for your swift response and my apologies for the confusion from my end.

My initial goal was to have an app that keeps sending my geolocation to a firebase database.

I assumed that this could occur in the background even though the app was completely closed by user (which now I understand is not possible).

So now I am still trying to do the same thing but while having my app open but in the background and or while my screen is locked.

What I did to achieve this is to follow facebook react-native Geolocation which states "In order to enable geolocation in the background, you need to include the 'NSLocationAlwaysUsageDescription' key in Info.plist and add location as a background mode in the 'Capabilities' tab in Xcode." which I have.

Before getting some clarity from you about the inability to have background task run if the app is completely closed, I went ahead and tried to implement also your repo.

With both installed and having the app still open but in the background, I am only seeing the Geolocation fire very frequently (every 15 seconds or so) which gets reflected on firebase successfully, but I do not see any activity from yours.

So this is why I was wondering if the react-native Geolocation implementation super seeds your repo?

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Thank you for the link, but $349... is a bit steep for a personal/non commercial app.

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