From 4ea8bac10d5f684a24abd8e9280b97fee4810593 Mon Sep 17 00:00:00 2001
From: Greyson Parrelli <greyson@signal.org>
Date: Tue, 30 Jun 2020 11:55:06 -0700
Subject: [PATCH] Re-enable view prefetching.

---
 .../securesms/conversation/ConversationFragment.java   |  2 ++
 .../conversationlist/ConversationListFragment.java     |  4 ++--
 .../org/thoughtcrime/securesms/util/DynamicTheme.java  | 10 ++++++++++
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationFragment.java b/app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationFragment.java
index 8774e67e0d..39f5f3906a 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationFragment.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationFragment.java
@@ -168,6 +168,8 @@ public class ConversationFragment extends LoggingFragment {
     FrameLayout parent = new FrameLayout(context);
     parent.setLayoutParams(new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.WRAP_CONTENT));
 
+    CachedInflater.from(context).cacheUntilLimit(R.layout.conversation_item_received_text_only, parent, 15);
+    CachedInflater.from(context).cacheUntilLimit(R.layout.conversation_item_sent_text_only, parent, 15);
     CachedInflater.from(context).cacheUntilLimit(R.layout.conversation_item_received_multimedia, parent, 10);
     CachedInflater.from(context).cacheUntilLimit(R.layout.conversation_item_sent_multimedia, parent, 10);
     CachedInflater.from(context).cacheUntilLimit(R.layout.conversation_item_update, parent, 5);
diff --git a/app/src/main/java/org/thoughtcrime/securesms/conversationlist/ConversationListFragment.java b/app/src/main/java/org/thoughtcrime/securesms/conversationlist/ConversationListFragment.java
index 6550813eee..fac90c5245 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/conversationlist/ConversationListFragment.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/conversationlist/ConversationListFragment.java
@@ -88,6 +88,7 @@ import org.thoughtcrime.securesms.components.reminder.ServiceOutageReminder;
 import org.thoughtcrime.securesms.components.reminder.ShareReminder;
 import org.thoughtcrime.securesms.components.reminder.SystemSmsImportReminder;
 import org.thoughtcrime.securesms.components.reminder.UnauthorizedReminder;
+import org.thoughtcrime.securesms.conversation.ConversationFragment;
 import org.thoughtcrime.securesms.conversationlist.model.Conversation;
 import org.thoughtcrime.securesms.conversationlist.model.MessageResult;
 import org.thoughtcrime.securesms.conversationlist.model.SearchResult;
@@ -266,8 +267,7 @@ public class ConversationListFragment extends MainFragment implements ActionMode
   @Override
   public void onStart() {
     super.onStart();
-    // TODO [greyson] Re-enable when we figure out how to invalidate the cache after a system theme change
-//    ConversationFragment.prepare(requireContext());
+    ConversationFragment.prepare(requireContext());
   }
 
   @Override
diff --git a/app/src/main/java/org/thoughtcrime/securesms/util/DynamicTheme.java b/app/src/main/java/org/thoughtcrime/securesms/util/DynamicTheme.java
index 00d89695af..59cbbb0c8b 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/util/DynamicTheme.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/util/DynamicTheme.java
@@ -17,11 +17,21 @@ public class DynamicTheme {
   public static final String LIGHT  = "light";
   public static final String SYSTEM = "system";
 
+  private static boolean isDarkTheme;
+
   private int currentTheme;
 
   public void onCreate(Activity activity) {
+    boolean wasDarkTheme = isDarkTheme;
+
     currentTheme = getSelectedTheme(activity);
+    isDarkTheme  = isDarkTheme(activity);
+
     activity.setTheme(currentTheme);
+
+    if (isDarkTheme != wasDarkTheme) {
+      CachedInflater.from(activity).clear();
+    }
   }
 
   public void onResume(Activity activity) {