APhotomanager version 0.8.3 and older only supports photos on sd-card when the sd-card is formatted as internal memory if you use android-7 and newer.

This ticket tries to add "ask for SAF-permission" support. to solve #95 #61 if android allows write access to external storage (sdcard, usb-stick)

Background: I broke my android-7.1 cellphone (which used the sd-card as formatted as internal memory) and the manufacturer "LG" of my new android-9 divce does not allow "format sd as internal). Fortunately i found the setting "allow app to write to external memory" in the developper settings.