From faa61923fbc690eb39f4f9c4799a4c7a24e32888 Mon Sep 17 00:00:00 2001
From: len <len@kanade.eu>
Date: Sun, 8 Jan 2017 23:40:54 +0100
Subject: [PATCH] Fix #620

---
 .../ui/reader/viewer/pager/PagerReaderAdapter.kt       | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerReaderAdapter.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerReaderAdapter.kt
index 48f13e1528..7f765207cc 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerReaderAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerReaderAdapter.kt
@@ -1,5 +1,6 @@
 package eu.kanade.tachiyomi.ui.reader.viewer.pager
 
+import android.support.v4.view.PagerAdapter
 import android.view.View
 import android.view.ViewGroup
 import eu.kanade.tachiyomi.R
@@ -34,4 +35,13 @@ class PagerReaderAdapter(private val reader: PagerReader) : ViewPagerAdapter() {
         return pages.size
     }
 
+    override fun getItemPosition(obj: Any): Int {
+        val view = obj as PageView
+        return if (view.page in pages) {
+            PagerAdapter.POSITION_UNCHANGED
+        } else {
+            PagerAdapter.POSITION_NONE
+        }
+    }
+
 }