cordova - Reliable Background Geolocation Service on Android in JavaScript -

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the app should track user in background, calculations on locations received , notify user of events of interest.

the logic has been written in javascript (for post-mortem analysis). so, not re-implement same in java/swift, i'm aiming cordova/reactnative/nativescript/titanium.

android kill backgrounded app in tight memory conditions. make background operation more reliable, android service used. 1 make service "foreground" tell os user aware of service , service of importance user. os kill such app/service process. when ask re-start service asap.

the problem looks javascript vm not started service , there no way run javascript logic. same problem frameworks mentioned.

thus, service must all-native , re-implementation of logic.

questions:

  1. are findings correct? i.e. in either mentioned framework there no easy way re-start javascript vm service?

  2. somewhere on saw trick service ran (invisible) activity instantiated vm again. possible? can give link/explanation?

  3. how android kill process hosting "foreground" service? maybe ignore case.

thank you.

i have app reliant on reliable background geolocation on android (and ios).

after trying many approaches (including own native solutions) have settled on cordova-background-geolocation-lt (also available react native , nativescript).

it's paid-for solution (not free), there's reason that: in extensive real-world field testing, solution work reliably on os versions (including android 8 , ios 11) - android 8 in particular challenge due new background geolocation limits.

in answer questions, in practice have found solution reliable on android when using foregroundservice option, app able run continuously several hours no interruption.


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