From 288f1777d9b8ee1c4480a3184ebc0981f1e3494e Mon Sep 17 00:00:00 2001
From: Alex Ning <chineseperson5@gmail.com>
Date: Fri, 12 Feb 2021 23:36:44 +0800
Subject: Use EventBus to send post list from PostFragment to
 ViewPostDetailActivity.

---
 app/build.gradle                                   |   2 +-
 .../activities/ViewPostDetailActivity.java         |  33 +++++-
 .../adapters/PostRecyclerViewAdapter.java          | 118 +++++++++++----------
 .../NeedForPostListFromPostFragmentEvent.java      |   9 ++
 ...ovidePostListToViewPostDetailActivityEvent.java |  15 +++
 .../infinityforreddit/fragments/PostFragment.java  |  31 +++++-
 6 files changed, 144 insertions(+), 64 deletions(-)
 create mode 100644 app/src/main/java/ml/docilealligator/infinityforreddit/events/NeedForPostListFromPostFragmentEvent.java
 create mode 100644 app/src/main/java/ml/docilealligator/infinityforreddit/events/ProvidePostListToViewPostDetailActivityEvent.java

(limited to 'app')

diff --git a/app/build.gradle b/app/build.gradle
index f6a86b59..0d10836c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -172,5 +172,5 @@ dependencies {
 
 /**** Builds and flavors ****/
     // debugImplementation because LeakCanary should only run in debug builds.
-    debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.5'
+    //debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.5'
 }
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/activities/ViewPostDetailActivity.java b/app/src/main/java/ml/docilealligator/infinityforreddit/activities/ViewPostDetailActivity.java
index 3e395af8..0b6fb97e 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/activities/ViewPostDetailActivity.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/activities/ViewPostDetailActivity.java
@@ -54,6 +54,8 @@ import ml.docilealligator.infinityforreddit.asynctasks.SwitchAccount;
 import ml.docilealligator.infinityforreddit.bottomsheetfragments.FlairBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.comment.Comment;
 import ml.docilealligator.infinityforreddit.customtheme.CustomThemeWrapper;
+import ml.docilealligator.infinityforreddit.events.NeedForPostListFromPostFragmentEvent;
+import ml.docilealligator.infinityforreddit.events.ProvidePostListToViewPostDetailActivityEvent;
 import ml.docilealligator.infinityforreddit.events.SwitchAccountEvent;
 import ml.docilealligator.infinityforreddit.fragments.PostFragment;
 import ml.docilealligator.infinityforreddit.fragments.ViewPostDetailFragment;
@@ -63,13 +65,13 @@ import ml.docilealligator.infinityforreddit.utils.SharedPreferencesUtils;
 public class ViewPostDetailActivity extends BaseActivity implements FlairBottomSheetFragment.FlairSelectionCallback,
         SortTypeSelectionCallback, ActivityToolbarInterface {
 
-    public static final String EXTRA_POST_LIST = "EPL";
     public static final String EXTRA_POST_DATA = "EPD";
     public static final String EXTRA_POST_ID = "EPI";
     public static final String EXTRA_POST_LIST_POSITION = "EPLP";
     public static final String EXTRA_SINGLE_COMMENT_ID = "ESCI";
     public static final String EXTRA_MESSAGE_FULLNAME = "ENI";
     public static final String EXTRA_NEW_ACCOUNT_NAME = "ENAN";
+    public static final String EXTRA_POST_FRAGMENT_ID = "EPFI";
     public static final int EDIT_COMMENT_REQUEST_CODE = 3;
     public static final int GIVE_AWARD_REQUEST_CODE = 100;
     @State
@@ -105,6 +107,8 @@ public class ViewPostDetailActivity extends BaseActivity implements FlairBottomS
     private FragmentManager fragmentManager;
     private SlidrInterface mSlidrInterface;
     private SectionsPagerAdapter sectionsPagerAdapter;
+    private long postFragmentId;
+    private int postListPosition = -1;
     private int orientation;
     private boolean mVolumeKeysNavigateComments;
 
@@ -157,10 +161,15 @@ public class ViewPostDetailActivity extends BaseActivity implements FlairBottomS
             }
         }
 
+        postFragmentId = getIntent().getLongExtra(EXTRA_POST_FRAGMENT_ID, -1);
+        if (posts == null && postFragmentId > 0) {
+            EventBus.getDefault().post(new NeedForPostListFromPostFragmentEvent(postFragmentId));
+        }
+
+
         fragmentManager = getSupportFragmentManager();
 
         if (savedInstanceState == null) {
-            posts = getIntent().getParcelableArrayListExtra(EXTRA_POST_LIST);
             post = getIntent().getParcelableExtra(EXTRA_POST_DATA);
         }
 
@@ -296,6 +305,17 @@ public class ViewPostDetailActivity extends BaseActivity implements FlairBottomS
         }
     }
 
+    @Subscribe
+    public void onProvidePostListToViewPostDetailActivityEvent(ProvidePostListToViewPostDetailActivityEvent event) {
+        if (event.postFragmentId == postFragmentId && posts == null) {
+            posts = event.posts;
+            if (sectionsPagerAdapter != null) {
+                if (postListPosition > 0)
+                    sectionsPagerAdapter.notifyDataSetChanged();
+            }
+        }
+    }
+
     @Override
     public boolean onOptionsItemSelected(@NonNull MenuItem item) {
         if (item.getItemId() == android.R.id.home) {
@@ -415,12 +435,19 @@ public class ViewPostDetailActivity extends BaseActivity implements FlairBottomS
             ViewPostDetailFragment fragment = new ViewPostDetailFragment();
             Bundle bundle = new Bundle();
             if (posts != null) {
-                bundle.putParcelable(ViewPostDetailFragment.EXTRA_POST_DATA, posts.get(position));
+                if (postListPosition == position && post != null) {
+                    bundle.putParcelable(ViewPostDetailFragment.EXTRA_POST_DATA, post);
+                    bundle.putInt(ViewPostDetailFragment.EXTRA_POST_LIST_POSITION, position);
+                } else {
+                    bundle.putParcelable(ViewPostDetailFragment.EXTRA_POST_DATA, posts.get(position));
+                    bundle.putInt(ViewPostDetailFragment.EXTRA_POST_LIST_POSITION, position);
+                }
             } else {
                 if (post == null) {
                     bundle.putString(ViewPostDetailFragment.EXTRA_POST_ID, getIntent().getStringExtra(EXTRA_POST_ID));
                 } else {
                     bundle.putParcelable(ViewPostDetailFragment.EXTRA_POST_DATA, post);
+                    bundle.putInt(ViewPostDetailFragment.EXTRA_POST_LIST_POSITION, position);
                 }
             }
             fragment.setArguments(bundle);
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/PostRecyclerViewAdapter.java b/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/PostRecyclerViewAdapter.java
index 60043539..5418a482 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/PostRecyclerViewAdapter.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/adapters/PostRecyclerViewAdapter.java
@@ -454,7 +454,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                                 .into(((PostBaseViewHolder) holder).iconGifImageView);
                                     }
 
-                                    if (holder.getAdapterPosition() >= 0) {
+                                    if (holder.getBindingAdapterPosition() >= 0) {
                                         post.setAuthorIconUrl(iconImageUrl);
                                     }
                                 }
@@ -488,7 +488,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                                         .into(((PostBaseViewHolder) holder).iconGifImageView);
                                             }
 
-                                            if (holder.getAdapterPosition() >= 0) {
+                                            if (holder.getBindingAdapterPosition() >= 0) {
                                                 post.setSubredditIconUrl(iconImageUrl);
                                             }
                                         }
@@ -522,7 +522,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                             .into(((PostBaseViewHolder) holder).iconGifImageView);
                                 }
 
-                                if (holder.getAdapterPosition() >= 0) {
+                                if (holder.getBindingAdapterPosition() >= 0) {
                                     post.setAuthorIconUrl(iconImageUrl);
                                 }
                             }
@@ -637,14 +637,14 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                 post.setVideoDownloadUrl(mp4);
                                 post.setVideoUrl(webm);
                                 post.setLoadGfyOrRedgifsVideoSuccess(true);
-                                if (position == holder.getAdapterPosition()) {
+                                if (position == holder.getBindingAdapterPosition()) {
                                     ((PostVideoAutoplayViewHolder) holder).bindVideoUri(Uri.parse(post.getVideoUrl()));
                                 }
                             }
 
                             @Override
                             public void failed(int errorCode) {
-                                if (position == holder.getAdapterPosition()) {
+                                if (position == holder.getBindingAdapterPosition()) {
                                     ((PostVideoAutoplayViewHolder) holder).errorLoadingGfycatImageView.setVisibility(View.VISIBLE);
                                 }
                             }
@@ -739,7 +739,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                         ((PostTextTypeViewHolder) holder).contentTextView.setText(post.getSelfTextPlainTrimmed());
                     }
                 }
-                mCallback.currentlyBindItem(holder.getAdapterPosition());
+                mCallback.currentlyBindItem(holder.getBindingAdapterPosition());
             }
         } else if (holder instanceof PostCompactBaseViewHolder) {
             Post post = getItem(position);
@@ -784,7 +784,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                                 .into(((PostCompactBaseViewHolder) holder).iconGifImageView);
                                     }
 
-                                    if (holder.getAdapterPosition() >= 0) {
+                                    if (holder.getBindingAdapterPosition() >= 0) {
                                         post.setAuthorIconUrl(iconImageUrl);
                                     }
                                 }
@@ -818,7 +818,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                                         .into(((PostCompactBaseViewHolder) holder).iconGifImageView);
                                             }
 
-                                            if (holder.getAdapterPosition() >= 0) {
+                                            if (holder.getBindingAdapterPosition() >= 0) {
                                                 post.setSubredditIconUrl(iconImageUrl);
                                             }
                                         }
@@ -855,7 +855,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                             .into(((PostCompactBaseViewHolder) holder).iconGifImageView);
                                 }
 
-                                if (holder.getAdapterPosition() >= 0) {
+                                if (holder.getBindingAdapterPosition() >= 0) {
                                     post.setAuthorIconUrl(iconImageUrl);
                                 }
                             }
@@ -1044,7 +1044,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                     ((PostCompactBaseViewHolder) holder).saveButton.setImageResource(R.drawable.ic_bookmark_border_grey_24dp);
                 }
 
-                mCallback.currentlyBindItem(holder.getAdapterPosition());
+                mCallback.currentlyBindItem(holder.getBindingAdapterPosition());
             }
         }
     }
@@ -1343,7 +1343,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
         super.onViewRecycled(holder);
         if (holder instanceof PostBaseViewHolder) {
             if (mMarkPostsAsReadOnScroll) {
-                int position = holder.getAdapterPosition();
+                int position = holder.getBindingAdapterPosition();
                 if (position < super.getItemCount() && position >= 0) {
                     Post post = getItem(position);
                     ((PostBaseViewHolder) holder).markPostRead(post, false);
@@ -1398,7 +1398,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             ((PostBaseViewHolder) holder).downvoteButton.setColorFilter(mPostIconAndInfoColor, android.graphics.PorterDuff.Mode.SRC_IN);
         } else if (holder instanceof PostCompactBaseViewHolder) {
             if (mMarkPostsAsReadOnScroll) {
-                int position = holder.getAdapterPosition();
+                int position = holder.getBindingAdapterPosition();
                 if (position < super.getItemCount() && position >= 0) {
                     Post post = getItem(position);
                     ((PostCompactBaseViewHolder) holder).markPostRead(post, false);
@@ -1624,7 +1624,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             shareButton.setColorFilter(mPostIconAndInfoColor, android.graphics.PorterDuff.Mode.SRC_IN);
 
             cardView.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position >= 0 && canStartActivity) {
                     Post post = getItem(position);
                     if (post != null) {
@@ -1632,8 +1632,9 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                         canStartActivity = false;
 
                         Intent intent = new Intent(mActivity, ViewPostDetailActivity.class);
-                        intent.putExtra(ViewPostDetailActivity.EXTRA_POST_LIST, mFragment.getPostList());
-                        intent.putExtra(ViewPostDetailActivity.EXTRA_POST_LIST_POSITION, getAdapterPosition());
+                        intent.putExtra(ViewPostDetailActivity.EXTRA_POST_DATA, post);
+                        intent.putExtra(ViewPostDetailActivity.EXTRA_POST_LIST_POSITION, getBindingAdapterPosition());
+                        intent.putExtra(ViewPostDetailActivity.EXTRA_POST_FRAGMENT_ID, mFragment.getPostFragmentId());
                         mActivity.startActivity(intent);
                     }
                 }
@@ -1641,7 +1642,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
 
             userTextView.setOnClickListener(view -> {
                 if (canStartActivity) {
-                    int position = getAdapterPosition();
+                    int position = getBindingAdapterPosition();
                     if (position < 0) {
                         return;
                     }
@@ -1657,7 +1658,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
 
             if (mDisplaySubredditName) {
                 subredditTextView.setOnClickListener(view -> {
-                    int position = getAdapterPosition();
+                    int position = getBindingAdapterPosition();
                     if (position < 0) {
                         return;
                     }
@@ -1683,7 +1684,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                 iconGifImageView.setOnClickListener(view -> subredditTextView.performClick());
             } else {
                 subredditTextView.setOnClickListener(view -> {
-                    int position = getAdapterPosition();
+                    int position = getBindingAdapterPosition();
                     if (position < 0) {
                         return;
                     }
@@ -1710,7 +1711,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
 
             if (!(mActivity instanceof FilteredPostsActivity)) {
                 nsfwTextView.setOnClickListener(view -> {
-                    int position = getAdapterPosition();
+                    int position = getBindingAdapterPosition();
                     if (position < 0) {
                         return;
                     }
@@ -1720,7 +1721,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                     }
                 });
                 typeTextView.setOnClickListener(view -> {
-                    int position = getAdapterPosition();
+                    int position = getBindingAdapterPosition();
                     if (position < 0) {
                         return;
                     }
@@ -1732,7 +1733,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             }
 
             upvoteButton.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -1781,7 +1782,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                     VoteThing.voteThing(mActivity, mOauthRetrofit, mAccessToken, new VoteThing.VoteThingListener() {
                         @Override
                         public void onVoteThingSuccess(int position1) {
-                            int currentPosition = getAdapterPosition();
+                            int currentPosition = getBindingAdapterPosition();
                             if (newVoteType.equals(APIUtils.DIR_UPVOTE)) {
                                 post.setVoteType(1);
                                 if (currentPosition == position) {
@@ -1808,7 +1809,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                         public void onVoteThingFail(int position1) {
                             Toast.makeText(mActivity, R.string.vote_failed, Toast.LENGTH_SHORT).show();
                             post.setVoteType(previousVoteType);
-                            if (getAdapterPosition() == position) {
+                            if (getBindingAdapterPosition() == position) {
                                 scoreTextView.setText(Utils.getNVotes(mShowAbsoluteNumberOfVotes, post.getScore() + previousVoteType));
                                 upvoteButton.setColorFilter(previousUpvoteButtonColorFilter);
                                 downvoteButton.setColorFilter(previousDownvoteButtonColorFilter);
@@ -1817,12 +1818,12 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
 
                             EventBus.getDefault().post(new PostUpdateEventToDetailActivity(post));
                         }
-                    }, post.getFullName(), newVoteType, getAdapterPosition());
+                    }, post.getFullName(), newVoteType, getBindingAdapterPosition());
                 }
             });
 
             downvoteButton.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -1871,7 +1872,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                     VoteThing.voteThing(mActivity, mOauthRetrofit, mAccessToken, new VoteThing.VoteThingListener() {
                         @Override
                         public void onVoteThingSuccess(int position1) {
-                            int currentPosition = getAdapterPosition();
+                            int currentPosition = getBindingAdapterPosition();
                             if (newVoteType.equals(APIUtils.DIR_DOWNVOTE)) {
                                 post.setVoteType(-1);
                                 if (currentPosition == position) {
@@ -1898,7 +1899,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                         public void onVoteThingFail(int position1) {
                             Toast.makeText(mActivity, R.string.vote_failed, Toast.LENGTH_SHORT).show();
                             post.setVoteType(previousVoteType);
-                            if (getAdapterPosition() == position) {
+                            if (getBindingAdapterPosition() == position) {
                                 scoreTextView.setText(Utils.getNVotes(mShowAbsoluteNumberOfVotes, post.getScore() + previousVoteType));
                                 upvoteButton.setColorFilter(previousUpvoteButtonColorFilter);
                                 downvoteButton.setColorFilter(previousDownvoteButtonColorFilter);
@@ -1907,12 +1908,12 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
 
                             EventBus.getDefault().post(new PostUpdateEventToDetailActivity(post));
                         }
-                    }, post.getFullName(), newVoteType, getAdapterPosition());
+                    }, post.getFullName(), newVoteType, getBindingAdapterPosition());
                 }
             });
 
             saveButton.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -1930,7 +1931,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                     @Override
                                     public void success() {
                                         post.setSaved(false);
-                                        if (getAdapterPosition() == position) {
+                                        if (getBindingAdapterPosition() == position) {
                                             saveButton.setImageResource(R.drawable.ic_bookmark_border_grey_24dp);
                                         }
                                         Toast.makeText(mActivity, R.string.post_unsaved_success, Toast.LENGTH_SHORT).show();
@@ -1940,7 +1941,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                     @Override
                                     public void failed() {
                                         post.setSaved(true);
-                                        if (getAdapterPosition() == position) {
+                                        if (getBindingAdapterPosition() == position) {
                                             saveButton.setImageResource(R.drawable.ic_bookmark_grey_24dp);
                                         }
                                         Toast.makeText(mActivity, R.string.post_unsaved_failed, Toast.LENGTH_SHORT).show();
@@ -1954,7 +1955,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                     @Override
                                     public void success() {
                                         post.setSaved(true);
-                                        if (getAdapterPosition() == position) {
+                                        if (getBindingAdapterPosition() == position) {
                                             saveButton.setImageResource(R.drawable.ic_bookmark_grey_24dp);
                                         }
                                         Toast.makeText(mActivity, R.string.post_saved_success, Toast.LENGTH_SHORT).show();
@@ -1964,7 +1965,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                     @Override
                                     public void failed() {
                                         post.setSaved(false);
-                                        if (getAdapterPosition() == position) {
+                                        if (getBindingAdapterPosition() == position) {
                                             saveButton.setImageResource(R.drawable.ic_bookmark_border_grey_24dp);
                                         }
                                         Toast.makeText(mActivity, R.string.post_saved_failed, Toast.LENGTH_SHORT).show();
@@ -1976,7 +1977,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             });
 
             shareButton.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -2111,7 +2112,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             });
 
             fullscreenButton.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -2257,7 +2258,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
 
         @Override
         public int getPlayerOrder() {
-            return getAdapterPosition();
+            return getBindingAdapterPosition();
         }
     }
 
@@ -2356,7 +2357,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             errorTextView.setTextColor(mPrimaryTextColor);
 
             imageView.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -2638,7 +2639,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             noPreviewLinkImageFrameLayout.setClipToOutline(true);
 
             itemView.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -2648,8 +2649,9 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                     canStartActivity = false;
 
                     Intent intent = new Intent(mActivity, ViewPostDetailActivity.class);
-                    intent.putExtra(ViewPostDetailActivity.EXTRA_POST_LIST, mFragment.getPostList());
-                    intent.putExtra(ViewPostDetailActivity.EXTRA_POST_LIST_POSITION, getAdapterPosition());
+                    intent.putExtra(ViewPostDetailActivity.EXTRA_POST_DATA, post);
+                    intent.putExtra(ViewPostDetailActivity.EXTRA_POST_LIST_POSITION, getBindingAdapterPosition());
+                    intent.putExtra(ViewPostDetailActivity.EXTRA_POST_FRAGMENT_ID, mFragment.getPostFragmentId());
                     mActivity.startActivity(intent);
                 }
             });
@@ -2672,7 +2674,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             });
 
             nameTextView.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -2702,7 +2704,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             iconGifImageView.setOnClickListener(view -> nameTextView.performClick());
 
             nsfwTextView.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -2713,7 +2715,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             });
 
             typeTextView.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -2724,7 +2726,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             });
 
             imageView.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -2789,7 +2791,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                     return;
                 }
 
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -2833,7 +2835,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                     VoteThing.voteThing(mActivity, mOauthRetrofit, mAccessToken, new VoteThing.VoteThingListener() {
                         @Override
                         public void onVoteThingSuccess(int position1) {
-                            int currentPosition = getAdapterPosition();
+                            int currentPosition = getBindingAdapterPosition();
                             if (newVoteType.equals(APIUtils.DIR_UPVOTE)) {
                                 post.setVoteType(1);
                                 if (currentPosition == position) {
@@ -2860,7 +2862,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                         public void onVoteThingFail(int position1) {
                             Toast.makeText(mActivity, R.string.vote_failed, Toast.LENGTH_SHORT).show();
                             post.setVoteType(previousVoteType);
-                            if (getAdapterPosition() == position) {
+                            if (getBindingAdapterPosition() == position) {
                                 scoreTextView.setText(Utils.getNVotes(mShowAbsoluteNumberOfVotes, post.getScore() + previousVoteType));
                                 upvoteButton.setColorFilter(previousUpvoteButtonColorFilter);
                                 downvoteButton.setColorFilter(previousDownvoteButtonColorFilter);
@@ -2869,7 +2871,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
 
                             EventBus.getDefault().post(new PostUpdateEventToDetailActivity(post));
                         }
-                    }, post.getFullName(), newVoteType, getAdapterPosition());
+                    }, post.getFullName(), newVoteType, getBindingAdapterPosition());
                 }
             });
 
@@ -2879,7 +2881,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                     return;
                 }
 
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -2923,7 +2925,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                     VoteThing.voteThing(mActivity, mOauthRetrofit, mAccessToken, new VoteThing.VoteThingListener() {
                         @Override
                         public void onVoteThingSuccess(int position1) {
-                            int currentPosition = getAdapterPosition();
+                            int currentPosition = getBindingAdapterPosition();
                             if (newVoteType.equals(APIUtils.DIR_DOWNVOTE)) {
                                 post.setVoteType(-1);
                                 if (currentPosition == position) {
@@ -2951,7 +2953,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                         public void onVoteThingFail(int position1) {
                             Toast.makeText(mActivity, R.string.vote_failed, Toast.LENGTH_SHORT).show();
                             post.setVoteType(previousVoteType);
-                            if (getAdapterPosition() == position) {
+                            if (getBindingAdapterPosition() == position) {
                                 scoreTextView.setText(Utils.getNVotes(mShowAbsoluteNumberOfVotes, post.getScore() + previousVoteType));
                                 upvoteButton.setColorFilter(previousUpvoteButtonColorFilter);
                                 downvoteButton.setColorFilter(previousDownvoteButtonColorFilter);
@@ -2960,7 +2962,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
 
                             EventBus.getDefault().post(new PostUpdateEventToDetailActivity(post));
                         }
-                    }, post.getFullName(), newVoteType, getAdapterPosition());
+                    }, post.getFullName(), newVoteType, getBindingAdapterPosition());
                 }
             });
 
@@ -2970,7 +2972,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                     return;
                 }
 
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
@@ -2983,7 +2985,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                     @Override
                                     public void success() {
                                         post.setSaved(false);
-                                        if (getAdapterPosition() == position) {
+                                        if (getBindingAdapterPosition() == position) {
                                             saveButton.setImageResource(R.drawable.ic_bookmark_border_grey_24dp);
                                         }
                                         Toast.makeText(mActivity, R.string.post_unsaved_success, Toast.LENGTH_SHORT).show();
@@ -2993,7 +2995,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                     @Override
                                     public void failed() {
                                         post.setSaved(true);
-                                        if (getAdapterPosition() == position) {
+                                        if (getBindingAdapterPosition() == position) {
                                             saveButton.setImageResource(R.drawable.ic_bookmark_grey_24dp);
                                         }
                                         Toast.makeText(mActivity, R.string.post_unsaved_failed, Toast.LENGTH_SHORT).show();
@@ -3007,7 +3009,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                     @Override
                                     public void success() {
                                         post.setSaved(true);
-                                        if (getAdapterPosition() == position) {
+                                        if (getBindingAdapterPosition() == position) {
                                             saveButton.setImageResource(R.drawable.ic_bookmark_grey_24dp);
                                         }
                                         Toast.makeText(mActivity, R.string.post_saved_success, Toast.LENGTH_SHORT).show();
@@ -3017,7 +3019,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                                     @Override
                                     public void failed() {
                                         post.setSaved(false);
-                                        if (getAdapterPosition() == position) {
+                                        if (getBindingAdapterPosition() == position) {
                                             saveButton.setImageResource(R.drawable.ic_bookmark_border_grey_24dp);
                                         }
                                         Toast.makeText(mActivity, R.string.post_saved_failed, Toast.LENGTH_SHORT).show();
@@ -3029,7 +3031,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             });
 
             shareButton.setOnClickListener(view -> {
-                int position = getAdapterPosition();
+                int position = getBindingAdapterPosition();
                 if (position < 0) {
                     return;
                 }
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/events/NeedForPostListFromPostFragmentEvent.java b/app/src/main/java/ml/docilealligator/infinityforreddit/events/NeedForPostListFromPostFragmentEvent.java
new file mode 100644
index 00000000..06abcfd5
--- /dev/null
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/events/NeedForPostListFromPostFragmentEvent.java
@@ -0,0 +1,9 @@
+package ml.docilealligator.infinityforreddit.events;
+
+public class NeedForPostListFromPostFragmentEvent {
+    public long postFragmentTimeId;
+
+    public NeedForPostListFromPostFragmentEvent(long postFragmentId) {
+        this.postFragmentTimeId = postFragmentId;
+    }
+}
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/events/ProvidePostListToViewPostDetailActivityEvent.java b/app/src/main/java/ml/docilealligator/infinityforreddit/events/ProvidePostListToViewPostDetailActivityEvent.java
new file mode 100644
index 00000000..40fc7bab
--- /dev/null
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/events/ProvidePostListToViewPostDetailActivityEvent.java
@@ -0,0 +1,15 @@
+package ml.docilealligator.infinityforreddit.events;
+
+import java.util.ArrayList;
+
+import ml.docilealligator.infinityforreddit.post.Post;
+
+public class ProvidePostListToViewPostDetailActivityEvent {
+    public long postFragmentId;
+    public ArrayList<Post> posts;
+
+    public ProvidePostListToViewPostDetailActivityEvent(long postFragmentId, ArrayList<Post> posts) {
+        this.postFragmentId = postFragmentId;
+        this.posts = posts;
+    }
+}
diff --git a/app/src/main/java/ml/docilealligator/infinityforreddit/fragments/PostFragment.java b/app/src/main/java/ml/docilealligator/infinityforreddit/fragments/PostFragment.java
index eb69cbee..140a36a8 100644
--- a/app/src/main/java/ml/docilealligator/infinityforreddit/fragments/PostFragment.java
+++ b/app/src/main/java/ml/docilealligator/infinityforreddit/fragments/PostFragment.java
@@ -52,6 +52,7 @@ import org.greenrobot.eventbus.Subscribe;
 
 import java.util.ArrayList;
 import java.util.Locale;
+import java.util.Random;
 import java.util.concurrent.Executor;
 
 import javax.inject.Inject;
@@ -101,7 +102,9 @@ import ml.docilealligator.infinityforreddit.events.ChangeTimeFormatEvent;
 import ml.docilealligator.infinityforreddit.events.ChangeVibrateWhenActionTriggeredEvent;
 import ml.docilealligator.infinityforreddit.events.ChangeVideoAutoplayEvent;
 import ml.docilealligator.infinityforreddit.events.ChangeVoteButtonsPositionEvent;
+import ml.docilealligator.infinityforreddit.events.NeedForPostListFromPostFragmentEvent;
 import ml.docilealligator.infinityforreddit.events.PostUpdateEventToPostList;
+import ml.docilealligator.infinityforreddit.events.ProvidePostListToViewPostDetailActivityEvent;
 import ml.docilealligator.infinityforreddit.events.ShowDividerInCompactLayoutPreferenceEvent;
 import ml.docilealligator.infinityforreddit.events.ShowThumbnailOnTheRightInCompactLayoutEvent;
 import ml.docilealligator.infinityforreddit.post.Post;
@@ -138,6 +141,7 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
     private static final String READ_POST_LIST_STATE = "RPLS";
     private static final String HIDE_READ_POSTS_INDEX_STATE = "HRPIS";
     private static final String POST_FILTER_STATE = "PFS";
+    private static final String POST_FRAGMENT_ID_STATE = "PFIS";
 
     @BindView(R.id.swipe_refresh_layout_post_fragment)
     SwipeRefreshLayout mSwipeRefreshLayout;
@@ -192,6 +196,7 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
     private AppCompatActivity activity;
     private LinearLayoutManager mLinearLayoutManager;
     private StaggeredGridLayoutManager mStaggeredGridLayoutManager;
+    private long postFragmentId;
     private int postType;
     private boolean isInLazyMode = false;
     private boolean isLazyModePaused = false;
@@ -390,8 +395,10 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
             readPosts = savedInstanceState.getParcelableArrayList(READ_POST_LIST_STATE);
             hideReadPostsIndex = savedInstanceState.getInt(HIDE_READ_POSTS_INDEX_STATE, 0);
             postFilter = savedInstanceState.getParcelable(POST_FILTER_STATE);
+            postFragmentId = savedInstanceState.getLong(POST_FRAGMENT_ID_STATE);
         } else {
             postFilter = getArguments().getParcelable(EXTRA_FILTER);
+            postFragmentId = System.currentTimeMillis() + new Random().nextInt(1000);
         }
 
         mPostRecyclerView.setOnTouchListener((view, motionEvent) -> {
@@ -428,6 +435,9 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
         if (postType == PostDataSource.TYPE_SEARCH) {
             subredditName = getArguments().getString(EXTRA_NAME);
             query = getArguments().getString(EXTRA_QUERY);
+            if (savedInstanceState == null) {
+                postFragmentId += query.hashCode();
+            }
 
             usage = PostFilterUsage.SEARCH_TYPE;
             nameOfUsage = PostFilterUsage.NO_USAGE;
@@ -481,6 +491,9 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
             });
         } else if (postType == PostDataSource.TYPE_SUBREDDIT) {
             subredditName = getArguments().getString(EXTRA_NAME);
+            if (savedInstanceState == null) {
+                postFragmentId += subredditName.hashCode();
+            }
 
             usage = PostFilterUsage.SUBREDDIT_TYPE;
             nameOfUsage = subredditName;
@@ -545,6 +558,9 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
             });
         } else if (postType == PostDataSource.TYPE_MULTI_REDDIT) {
             multiRedditPath = getArguments().getString(EXTRA_NAME);
+            if (savedInstanceState == null) {
+                postFragmentId += multiRedditPath.hashCode();
+            }
 
             usage = PostFilterUsage.MULTIREDDIT_TYPE;
             nameOfUsage = multiRedditPath;
@@ -610,6 +626,9 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
         } else if (postType == PostDataSource.TYPE_USER) {
             username = getArguments().getString(EXTRA_USER_NAME);
             where = getArguments().getString(EXTRA_USER_WHERE);
+            if (savedInstanceState == null) {
+                postFragmentId += username.hashCode();
+            }
 
             usage = PostFilterUsage.USER_TYPE;
             nameOfUsage = username;
@@ -1061,8 +1080,8 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
         }
     }
 
-    public ArrayList<Post> getPostList() {
-        return new ArrayList<>(mPostViewModel.getPosts().getValue());
+    public long getPostFragmentId() {
+        return postFragmentId;
     }
 
     @Override
@@ -1087,6 +1106,7 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
                     mStaggeredGridLayoutManager.findFirstVisibleItemPositions(into)[0]);
         }
         outState.putParcelable(POST_FILTER_STATE, postFilter);
+        outState.putLong(POST_FRAGMENT_ID_STATE, postFragmentId);
     }
 
     @Override
@@ -1575,6 +1595,13 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
         initializeSwipeActionDrawable();
     }
 
+    @Subscribe
+    public void onNeedForPostListFromPostRecyclerViewAdapterEvent(NeedForPostListFromPostFragmentEvent event) {
+        if (postFragmentId == event.postFragmentTimeId) {
+            EventBus.getDefault().post(new ProvidePostListToViewPostDetailActivityEvent(postFragmentId, new ArrayList<>(mPostViewModel.getPosts().getValue())));
+        }
+    }
+
     private void refreshAdapter() {
         int previousPosition = -1;
         if (mLinearLayoutManager != null) {
-- 
cgit v1.2.3