Root causes fixed:
- REQUEST_INSTALL_PACKAGES permission missing from both manifests
- FileProvider not declared in either manifest (FileProvider.getUriForFile() crashed)
- res/xml/file_paths.xml missing (required by FileProvider)
- setDestinationInExternalPublicDir() used public Downloads dir (needs storage
permission + FileProvider can't serve it); replaced with getExternalFilesDir()
which is app-private, needs no permission, and IS accessible by FileProvider
- canRequestPackageInstalls() check returned early with startActivity (fire-and-
forget); user could never retry. Now uses startActivityForResult/installPermLauncher
so the download auto-retries when user returns from the Settings screen
- Added download status check (COLUMN_STATUS == STATUS_SUCCESSFUL) before installing
dadaloop82
f9718fee6d