From 70608c3ed914ab2f71759191a0e952357ab0fab0 Mon Sep 17 00:00:00 2001
From: tom5079 <tom5079@naver.com>
Date: Sun, 5 Jul 2020 19:40:14 +0900
Subject: [PATCH] resolves #52

---
 app/src/main/java/xyz/quaver/pupil/util/history.kt | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/app/src/main/java/xyz/quaver/pupil/util/history.kt b/app/src/main/java/xyz/quaver/pupil/util/history.kt
index cc80275e..b39f3507 100644
--- a/app/src/main/java/xyz/quaver/pupil/util/history.kt
+++ b/app/src/main/java/xyz/quaver/pupil/util/history.kt
@@ -67,6 +67,20 @@ class Histories(private val file: File) : ArrayList<Int>() {
         return true
     }
 
+    override fun addAll(elements: Collection<Int>): Boolean {
+        load()
+
+        for (e in elements) {
+            if (contains(e))
+                super.remove(e)
+            super.add(0, e)
+        }
+
+        save()
+
+        return true
+    }
+
     override fun remove(element: Int): Boolean {
         load()
         val retval = super.remove(element)