handle null customer card id in encodedCodesIKEA

Author: ajungg

CHANGELOG.md

@@ -1,6 +1,11 @@
 # Changelog  
 All notable changes to this project will be documented in this file.
 
+## [0.13.7]
+
+### Fixed
+- Handle missing customer card id in encodedCodesIKEA
+
 ## [0.13.6]
 
 ### Added

ui/src/main/java/io/snabble/sdk/ui/checkout/CheckoutView.java

@@ -137,9 +137,16 @@ private void displayPaymentView() {
                 if (options != null) {
                     maxCodes = options.maxCodes;
                 }
+
+                String prefix = "9100003\u001d100{qrCodeCount}";
+                if (project.getCustomerCardId() != null) {
+                    prefix += "\u001d92" + project.getCustomerCardId();
+                }
+                prefix += "\u001d240";
+
                 displayView(new CheckoutEncodedCodesView(getContext(),
                         new EncodedCodesOptions.Builder(project)
-                        .prefix("9100003\u001d100{qrCodeCount}\u001d92" + project.getCustomerCardId() + "\u001d240")
+                        .prefix(prefix)
                         .separator("\u001d240")
                         .suffix("")
                         .maxCodes(maxCodes)