Imports basically work now, although there may be some issues if the user switches language between export and import.

app/src/main/res/values/strings.xml

@@ -120,6 +120,8 @@ As an alternative you could configure a trusted node in the settings, but as of
     <string name="error_msg_recipient_missing">Please set a recipient</string>
     <string name="export_data">Export</string>
     <string name="export_data_summary">Export all messages and contacts (but not identities)</string>
+    <string name="import_data">Import</string>
+    <string name="import_data_summary">Import messages and contacts (but not identities)</string>
     <string name="request_acknowledgements">Request acknowledgements</string>
     <string name="request_acknowledgements_summary">Acknowledges allow making sure a message was received, but require additional time to send</string>
     <string name="got_it">Got it</string>

app/src/main/res/xml/preferences.xml

@@ -51,6 +51,11 @@
         android:title="@string/export_data"
         android:summary="@string/export_data_summary"
         />
+    <Preference
+        android:key="import"
+        android:title="@string/import_data"
+        android:summary="@string/import_data_summary"
+        />
     <Preference
         android:key="status"
         android:summary="@string/status_summary"