Android Question Reading GPS position in a service

Star-Dust

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I found many examples to read GPS coordinates with the GPS Library, FusedLocationProvider, EsLocation2.

All examples Declare the GPS class (or FusionLocation, EsLocation) in the Starter module.
Here_For_GPS
Here_For_FusionLocationProvider
Here_For_EsLocation

I wonder if it's the best thing, since I would like to keep the service on.
Should you use another service model? Or is it OK as in the examples declaring it on Starter?

My need is to make a regular reading of the GPS position in the background

Thank's
 
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Star-Dust

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Thank Peter
 
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Star-Dust

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But FusedLocation with SDK 23+ must ask for permissions.

Trying it this morning was not necessary, but I would not make mistakes
.
 
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Peter Simpson

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Yes, you need to add fine location to your manifest file. your app is for the play store, then you will be forced by Google to use SDK 26 by the end of this year anyway, so you might as well implement SDK 26 now.

Are you using an activity module too?
 
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Star-Dust

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We use an activity form.

The App, however, is not intended for Play Store is an app for an investigative agency. It is used to trace a device at any time

(See this post)
 
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Star-Dust

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Peter Simpson said:
Use FusedLocationProvider and a new service module, just use Starter to start the new service.
Click to expand...
How precise is it?

With my tests today I see 1 wrong reading (of the order of 5 or 6 Neighborhood of error) every 6 readings.

So the journey seems inconsistent. Hi wrong something?
 
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Peter Simpson

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FLP is extremely precise as far as I'm concerned, I use it to manipulate data using my watch, my watch doesn't have GPS built-in so it relies on the FLP data that was collected by my other devices (GPS via my phone in most cases). If you believe that you're having location issues, you should just make things easier for yourself and just use the GPS library only.
 
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Star-Dust

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I'll show you my problem, send me a screen
(Sorry if I'm a little off topic)

The red line is the one drawn by the library. The Green line represents a real path.


This is the minimum error, see other tracks are worse

 
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Star-Dust

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Peter Simpson said:
Have you tested the data manually yourself, that trace looks too erratic?

I did a cycle route tracker some years back and that trace was perfect.
Click to expand...
What do you mean exactly?
I pass the data read to the OSMDroid library that traces the line. Do you think I should check with Google Map?
 
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Star-Dust

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I did a test by replacing the FusedLocationProvider library with the GPS.
The measurements are accurate.



So I think the problem is of the network that does not correctly localize.
But another problem arises, with GPS the costumes are very high and Android signals the App as high consumption. And it's a problem because it has to go unnoticed
 
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udg

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You could wake-up your app at given intervals (15 minutes could be ok?), then acquire a lock, save data to your remote server, remove lock, go to sleep 'till next wake-up time. This will save a lot of battery.
With a time interval of 30 minutes I costantly am below 1mAh.
 
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Star-Dust

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I am also thinking about this solution.

But I have to find a balance point so that the journey is continuous and the battery is not consumed.

There is another possibility, the EsLocation library that reads the position from both the network and the GPS.
 
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