From 0b0f985e242567ed5054ca2bcde2430cade970b4 Mon Sep 17 00:00:00 2001
From: Jay <jays2kings@gmail.com>
Date: Sat, 11 Apr 2020 14:54:11 -0400
Subject: [PATCH] Keeping a private static list of recents for recreation of
 recents controller

---
 .../tachiyomi/ui/recents/RecentsController.kt       |  4 +---
 .../kanade/tachiyomi/ui/recents/RecentsPresenter.kt | 13 ++++++++++++-
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/recents/RecentsController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/recents/RecentsController.kt
index c3c563f486..fc5a4f0215 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/recents/RecentsController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/recents/RecentsController.kt
@@ -69,7 +69,6 @@ class RecentsController(bundle: Bundle? = null) : BaseController(bundle),
     private var adapter = RecentMangaAdapter(this)
 
     private var presenter = RecentsPresenter(this)
-    private var recentItems: List<RecentMangaItem>? = null
     private var snack: Snackbar? = null
     private var lastChapterId: Long? = null
     private var showingDownloads = false
@@ -112,8 +111,8 @@ class RecentsController(bundle: Bundle? = null) : BaseController(bundle),
             headerHeight = it.systemWindowInsetTop + appBarHeight
         }
 
-        if (recentItems != null) adapter.updateDataSet(recentItems!!.toList())
         presenter.onCreate()
+        if (presenter.recentItems.isNotEmpty()) adapter.updateDataSet(presenter.recentItems)
 
         dl_bottom_sheet.onCreate(this)
 
@@ -217,7 +216,6 @@ class RecentsController(bundle: Bundle? = null) : BaseController(bundle),
 
     fun showLists(recents: List<RecentMangaItem>) {
         swipe_refresh.isRefreshing = LibraryUpdateService.isRunning()
-        recentItems = recents
         adapter.updateDataSet(recents)
         if (lastChapterId != null) {
             refreshItem(lastChapterId ?: 0L)
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/recents/RecentsPresenter.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/recents/RecentsPresenter.kt
index 377d844bd0..a530633779 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/recents/RecentsPresenter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/recents/RecentsPresenter.kt
@@ -36,7 +36,8 @@ class RecentsPresenter(
 
     private var scope = CoroutineScope(Job() + Dispatchers.Default)
 
-    private var recentItems = listOf<RecentMangaItem>()
+    var recentItems = listOf<RecentMangaItem>()
+        private set
     var query = ""
     private val newAdditionsHeader = RecentMangaHeaderItem(RecentMangaHeaderItem.NEWLY_ADDED)
     private val newChaptersHeader = RecentMangaHeaderItem(RecentMangaHeaderItem.NEW_CHAPTERS)
@@ -48,6 +49,11 @@ class RecentsPresenter(
     fun onCreate() {
         downloadManager.addListener(this)
         LibraryUpdateService.setListener(this)
+        if (lastRecents != null) {
+            if (recentItems.isEmpty())
+                recentItems = lastRecents ?: emptyList()
+            lastRecents = null
+        }
         getRecents()
     }
 
@@ -170,6 +176,7 @@ class RecentsPresenter(
     fun onDestroy() {
         downloadManager.removeListener(this)
         LibraryUpdateService.removeListener(this)
+        lastRecents = recentItems
     }
 
     fun cancelScope() {
@@ -264,4 +271,8 @@ class RecentsPresenter(
             getRecents()
         }
     }
+
+    private companion object {
+        var lastRecents: List<RecentMangaItem>? = null
+    }
 }