[Bug] [Android] Not working in background since Android SDK 29

[mobilemarines]

Describe the bug
I was able to send http posts in background (after 5 minutes) with this plugin (version 2.2.0) on the Android target SDK 28 using ionic 4 and Cordova 8.1.2.
As we are all forced to use Android SDK 29 in November I migrated to Cordova 9 und upgraded this plugin to 3.0.1.
Since then I am not able to send http posts in background after 5 minutes anymore. They are postponed and sent in a burst after app returns in foreground.

System info

• affected HTTP plugin version: 3.0.1
• affected platform(s) and version(s): Android 10
• affected device(s): All
• cordova version: 9.0.0
• cordova platform version(s): 9.0.0

Are you using ionic-native-wrapper?

• ionic-native-wrapper version: no
• did you check [ionic-native issue tracker]: yes

Minimum viable code to reproduce

• config.xml: <preference name="android-targetSdkVersion" value="29" />
• Try to send something in background after 5 minutes (via some background service (foreground service with active icon)) on an Android 10 device (with target SDK 29)
• I use @mauron85/cordova-plugin-background-geolocation position updates in background (with workaround: Foreground service doesn't work in Android 10 mauron85/cordova-plugin-background-geolocation#691)

If applicable, add formatted sample coding to help explain your problem.

this.advancedHttp.setDataSerializer('json');
const response: HTTPResponse = await this.advancedHttp.post(LocationService.POSITION_UPDATE_URL, position, headers);

Screenshots

• None

Hints
Since Android SDK 29 services need android:foregroundServiceType="dataSync" to be set in order to send data in background.
See:
https://developer.android.com/guide/components/foreground-services
https://developer.android.com/reference/android/R.attr#foregroundServiceType

[tobika]

In order to fix this you also have to add some more permissions as described here:
mauron85/cordova-plugin-background-geolocation#688 (comment)

<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />

[chacabuk]

mobilemarines:
i have exactly same issue.
Do you solve it?

I try adding permission, like tobika said:

It's work... but android going to remove my app from they store if i not explain why using this permission.
And.. all of my explanation not conform they...
Because they said: you not in background... you have a foreground service with an notification icon...