From c5ac16f531504d5bde7c87f8e3088652daeb543f Mon Sep 17 00:00:00 2001
From: Todd Kennedy <toddke@google.com>
Date: Thu, 10 Sep 2015 13:58:01 -0700
Subject: save "retain loader" state

We cannot pull the "retain loader" state from the Activity; an Activity may
not always be hosting a Fragment. Instead, save the "retain loader" state
inside the individual fragments.

Bug: 23838271
Change-Id: I8358183a7689b5a571ea7be03d769186b2812600
---
 core/java/android/app/Fragment.java           |  5 ++++-
 core/java/android/app/FragmentController.java |  1 +
 core/java/android/app/FragmentManager.java    | 11 +++++++++++
 3 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/core/java/android/app/Fragment.java b/core/java/android/app/Fragment.java
index 82206ea998ea..d50483e4a3f4 100644
--- a/core/java/android/app/Fragment.java
+++ b/core/java/android/app/Fragment.java
@@ -460,6 +460,9 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
     // If set this fragment is being retained across the current config change.
     boolean mRetaining;
 
+    // If set this fragment's loaders are being retained across the current config change.
+    boolean mRetainLoader;
+
     // If set this fragment has menu items to contribute.
     boolean mHasMenu;
 
@@ -2401,7 +2404,7 @@ public class Fragment implements ComponentCallbacks2, OnCreateContextMenuListene
                 mLoaderManager = mHost.getLoaderManager(mWho, mLoadersStarted, false);
             }
             if (mLoaderManager != null) {
-                if (mRetaining) {
+                if (mRetainLoader) {
                     mLoaderManager.doRetain();
                 } else {
                     mLoaderManager.doStop();
diff --git a/core/java/android/app/FragmentController.java b/core/java/android/app/FragmentController.java
index 28dadfa78b32..1b45137fb7c9 100644
--- a/core/java/android/app/FragmentController.java
+++ b/core/java/android/app/FragmentController.java
@@ -341,6 +341,7 @@ public class FragmentController {
      */
     public void doLoaderStop(boolean retain) {
         mHost.doLoaderStop(retain);
+        mHost.mFragmentManager.setRetainLoader(retain);
     }
 
     /**
diff --git a/core/java/android/app/FragmentManager.java b/core/java/android/app/FragmentManager.java
index 3b026d26b757..c7aa7595163f 100644
--- a/core/java/android/app/FragmentManager.java
+++ b/core/java/android/app/FragmentManager.java
@@ -869,6 +869,17 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
         }
     }
 
+    void setRetainLoader(boolean retain) {
+        if (mActive != null) {
+            for (int i=0; i<mActive.size(); i++) {
+                Fragment f = mActive.get(i);
+                if (f != null) {
+                    f.mRetainLoader = retain;
+                }
+            }
+        }
+    }
+
     void moveToState(Fragment f, int newState, int transit, int transitionStyle,
             boolean keepActive) {
         if (DEBUG && false) Log.v(TAG, "moveToState: " + f
-- 
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