From 648c3a0c0dafbc6eeb51b9c9849c4b8e09c76d52 Mon Sep 17 00:00:00 2001
From: sk <sk22@mailbox.org>
Date: Mon, 23 Jan 2023 08:23:15 -0300
Subject: [PATCH] fix crash when recycler view is null

---
 .../org/joinmastodon/android/fragments/IsOnTop.java | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 mastodon/src/main/java/org/joinmastodon/android/fragments/IsOnTop.java

diff --git a/mastodon/src/main/java/org/joinmastodon/android/fragments/IsOnTop.java b/mastodon/src/main/java/org/joinmastodon/android/fragments/IsOnTop.java
new file mode 100644
index 000000000..071e44775
--- /dev/null
+++ b/mastodon/src/main/java/org/joinmastodon/android/fragments/IsOnTop.java
@@ -0,0 +1,13 @@
+package org.joinmastodon.android.fragments;
+
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.RecyclerView;
+
+public interface IsOnTop {
+    boolean isOnTop();
+
+    default boolean isRecyclerViewOnTop(@Nullable RecyclerView list) {
+        if (list == null) return true;
+        return !list.canScrollVertically(-1);
+    }
+}