Listening beacons in background doesn't work after 1 minute

[Kranysys]

Version

1.0.1

Platform

Android

OS version

Android 9.0

Expected behavior

Listening the beacons after one minute when the app is in background.

Actual behavior

When the application is in background, it works perfect before 1 minute, then, the library doesn't detect any beacons.
The listener still working like there is no beacon detected.

[GiacomoMasi]

Which version of react native are you using?

[Kranysys]

Which version of react native are you using?

Tested with 0.59.9 and 0.60.4 on different projects, same result.

This may be related to authorization. 1 minute is for Xiaomi Note 7. On another phone I have 2 minutes. We need a solution to keep the listener working in background in long term.

[GiacomoMasi]

Can you upload the code?

Because I'm using 0.61.4 or 0.60.4 version of RN, and when I call the function startRangingBeaconsInRegion the application closes its self. May be since the version 0.60 something doesn't work in the right way. In the version 0.59 works for me.

[Kranysys]

Using the example on this repository:

Beacons.detectIBeacons();

// Start detecting all iBeacons in the nearby
try {
  await Beacons.startRangingBeaconsInRegion('REGION1')
  console.log(`Beacons ranging started succesfully!`)
} catch (err) {
  console.log(`Beacons ranging not started, error: ${error}`)
}

// Print a log of the detected iBeacons (1 per second)
subscription = DeviceEventEmitter.addListener('beaconsDidRange', (data) => {
  console.log('Found beacons!', data.beacons)
})

I have the same result with Monitoring a specific beacon UID also.

[GiacomoMasi]

I tested your code and it works well.
I see in my tests that in RN 0.61.4 the application crashes after the calls of the startRangingBeaconsInRegion function. May be the duration of the scanner depends on the model of the phone

[Kranysys]

Issue founded, this problem is due to battery saver present on many devices, more informations:
https://dontkillmyapp.com/xiaomi
It works when we disable "Saving Power in The Background".

[sankar9659]

It's working for me in android but not work in IOS, my react native version is 0.61.5

[Srikanth-Enuguru]

@Kranysys @sankar9659 @GiacomoMasi Are you able to scan the iBeacons using this library?
If yes could you please share your code or help me in fixing this issue.

[GiacomoMasi]

Hi, I did a project using this library (I think in 2017). I don't know how this library changes nowadays. I suggest you follow the code of the docs page and try to work with a simple example, and then add new features. Giacomo Il giorno gio 27 lug 2023 alle ore 06:57 Srikanth Enuguru < ***@***.***> ha scritto:

…

@Kranysys <https://github.com/Kranysys> @sankar9659 <https://github.com/sankar9659> @GiacomoMasi <https://github.com/GiacomoMasi> Are you able to scan the iBeacons using this library? If yes could you please share your code or help me in fixing this issue <#266>. — Reply to this email directly, view it on GitHub <#167 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AIBP3B4SYCHCVZQWSP7Y6PLXSHYKZANCNFSM4JQC6P7A> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[akankshaingle]

I turned off Power Saving mode and now my Android can detect beacons in the background too.