From 9a2d195cb26d61e8f9a5967517d8c4dd0663bb44 Mon Sep 17 00:00:00 2001
From: Sylvia van Os <sylvia@hackerchick.me>
Date: Mon, 9 Dec 2019 13:20:42 +0100
Subject: [PATCH] Don't generate a barcode if id is empty

This prevents a bug with an empty PDF 417 barcode being generated
---
 .../java/protect/card_locker/BarcodeImageWriterTask.java     | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/app/src/main/java/protect/card_locker/BarcodeImageWriterTask.java b/app/src/main/java/protect/card_locker/BarcodeImageWriterTask.java
index a03a52994..9ef6b7115 100644
--- a/app/src/main/java/protect/card_locker/BarcodeImageWriterTask.java
+++ b/app/src/main/java/protect/card_locker/BarcodeImageWriterTask.java
@@ -90,6 +90,11 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
 
     public Bitmap doInBackground(Void... params)
     {
+        if (cardId.isEmpty())
+        {
+            return null;
+        }
+
         MultiFormatWriter writer = new MultiFormatWriter();
         BitMatrix bitMatrix;
         try