From 9362e4c341a35731e402a834acf2d0526246cd49 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebasti=C3=A1n=20Katzer?= <katzer.sebastian@googlemail.com>
Date: Fri, 1 Mar 2019 12:06:16 +0100
Subject: [PATCH] Fix potential NPE

---
 src/ios/APPPrinterItem.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ios/APPPrinterItem.m b/src/ios/APPPrinterItem.m
index 671e24f..6342311 100644
--- a/src/ios/APPPrinterItem.m
+++ b/src/ios/APPPrinterItem.m
@@ -47,7 +47,7 @@
  */
 + (BOOL) canPrintURL:(nullable NSString *)url
 {
-    if (![NSURL URLWithString:url].scheme)
+    if ([url isEqual:[NSNull null]] || ![NSURL URLWithString:url].scheme)
     {
         return UIPrintInteractionController.isPrintingAvailable;
     }