My Flutter (Android and iOS) app generates KML or GPX files, which works as expected.
Now I want to add a button "Open file" which should open such a system dialog where the installed map apps (which can handle such formats) are listed to be chosen.
How can I open this dialog? How can I find the format-related apps and how can I send the file to these apps. I guess, there is a plugin for this, but couldn't find one. It must work on Android and iOS, nice-to have is web support.
I just saw open_file but I am not quite sure, if it works as expected because it doesn't list support for KML/GPX.
Thanks in advance!
from Open KML/GPX files in appropriate external map app
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