File Shuttle - Bridge for cross-border file access
Island provides a special documents provider of Android Storage Access Framework for cross-border file access. Currently it enables apps (supporting Android SAF) in Island to access files in mainland. The reverse direction file access will be implemented in future version.
Before the File Shuttle could be activated, a special permission must be granted with ADB via USB-connected PC.
Run this command in ADB shell:
pm grant com.oasisfeng.island android.permission.INTERACT_ACROSS_USERS
Then open Island app and switch to the “Discover” tab, you can activate the File Shuttle there.