Storage Access Framework doesn't show cloud roots when using ACTION_OPEN_DOCUMENT_TREE
问题 I read that I have to prepare my app in advance for Android Q release because then the common read/write access to files outside the app-owned directories could be deprecated, if they do not withdraw the new way of managing those files. I have not so many lines of codes to change, luckily. The fact is that the Storage Access Framework seems to have some issues. And it is here from Kitkat, I see (I did not know it). Otherwise my code is wrong. I am not able to simply make the user choose a