From c3ffed56da4e5110138b5dba97ca4dca4e5f08db Mon Sep 17 00:00:00 2001
From: Conny Duck <k.pozniak@gmx.at>
Date: Tue, 17 Oct 2017 09:37:59 +0200
Subject: [PATCH] fix a bug where saving a toot with attached media would crash
 the app

---
 .../main/java/com/keylesspalace/tusky/ComposeActivity.java    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java b/app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java
index 90948ab41..b34e05ae3 100644
--- a/app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java
+++ b/app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java
@@ -687,7 +687,9 @@ public class ComposeActivity extends BaseActivity implements ComposeOptionsFragm
             if (!ListUtils.isEmpty(savedList)) {
                 String json = new Gson().toJson(savedList);
                 toot.setUrls(json);
-                deleteMedia(setDifference(existingUris, savedList));
+                if(!ListUtils.isEmpty(existingUris)) {
+                    deleteMedia(setDifference(existingUris, savedList));
+                }
             } else {
                 return false;
             }