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WLAN scan after every unlocking/activation of the phone since Android 9
I use a Samsung Galaxy S8+ phone with Android 9. I set my NMS app to scan the WLAN after connecting to it.
Under Android 8 this scan was done only when a new WLAN connection was established (which makes completely sense), but since Android 9 the scan takes place all over the day every time after I did not use the phone for a while and use it again.
First I thought that since Android 9 the WLAN is actually disabled every time the phone is locked and/or after a while of not using it. But Samsung told me that this is not true and I see that the WLAN name in the box on the top of my phone is always set, which means (at least it seems so) that the WLAN is not disconnected.
I cannot exactly tell what has to happen that the scan takes place, but even if I stay in the range of one specific WLAN the whole day, the scan is done multiple times. It's run when I just press the on switch to wake the phone up or open my cover (which does the same).
Does anybody else has this problem? Is there a solution?