Android Code Snippet Request ignore battery optimizations

The following code will show a dialog that asks the user to whitelist the app and ignore battery optimizations. This is useful if your app needs to run in the background.

Note that it is likely that your app will not be accepted to Google Play with this request so it is more useful for non-Google Play (https://developer.android.com/training/monitoring-device-state/doze-standby). There is a "safer" solution that opens the settings. From my tests it doesn't seem to work properly.

'Depends on Phone library
Private Sub CheckAndRequestIgnoreBatteryOptimizations As ResumableSub
    Dim p As Phone
    If p.SdkVersion < 23 Then Return True
    Dim context As JavaObject
    context.InitializeContext
    Dim PowerManager As JavaObject = context.RunMethod("getSystemService", Array("power"))
    Dim ignoring As Boolean = PowerManager.RunMethod("isIgnoringBatteryOptimizations", Array(Application.PackageName))
    If ignoring Then Return True
    Dim in As Intent
    in.Initialize("android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS", "package:" & Application.PackageName)
    StartActivity(in)
    Wait For B4XPage_Appear 'Change to Activity_Resume if mistakenly not using B4XPages.
    Return PowerManager.RunMethod("isIgnoringBatteryOptimizations", Array(Application.PackageName))
End Sub

Manifest editor:

AddPermission(android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS)

Usage:

Private Sub Button1_Click
    Wait For (CheckAndRequestIgnoreBatteryOptimizations) Complete (Ignoring As Boolean)
    Log(Ignoring)
End Sub

 

[Pendrush]

From my tests it doesn't seem to work properly.

I'm fighting this behavior for years now. It depend on two things from my experience: Android version and device manufacturer.
More detailed procedures per manufacturer: https://dontkillmyapp.com