01-07-2020, 05:50 PM
The cause was some slight restructuring of phyphox in combination with reflection. So, we use reflection to map the names of the Bluetooth conversion functions to the actual functions in our code. In the end, there is a class which contains all the conversion function which in turn are either a function (in simple cases) or a class themselves. In the last release we moved the Bluetooth stuff into a separate package and with this change the classes became inaccessible via reflection.
The annoying thing was that the functions (and therefore most of the conversion functions) were still accessible, so the problem was not noticed right away. Also, on my Pixel 3 which I use for most of the testing, even the classes were still working. Not sure if this depends on the Android version, but for me this only failed when trying to access a conversion function implemented as a class on an older device (a Nexus 5x with Android 8).
The annoying thing was that the functions (and therefore most of the conversion functions) were still accessible, so the problem was not noticed right away. Also, on my Pixel 3 which I use for most of the testing, even the classes were still working. Not sure if this depends on the Android version, but for me this only failed when trying to access a conversion function implemented as a class on an older device (a Nexus 5x with Android 8).