Very dirty, very quick, read-only implementation of emoji reactions

app/build.gradle

@@ -128,6 +128,7 @@ dependencies {
     kapt "androidx.room:room-compiler:$roomVersion"
 
     implementation "com.google.android.material:material:1.1.0-rc01"
+	implementation 'com.google.android:flexbox:2.0.1'
 
     implementation "com.squareup.retrofit2:retrofit:$retrofitVersion"
     implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"

app/src/main/java/com/keylesspalace/tusky/adapter/StatusDetailedViewHolder.java

@@ -6,15 +6,19 @@ import android.content.Context;
 import android.graphics.drawable.Drawable;
 import android.text.TextUtils;
 import android.text.method.LinkMovementMethod;
+import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 import android.widget.Toast;
+import android.util.Log;
 
 import androidx.annotation.Nullable;
+import androidx.emoji.widget.EmojiButton;
 import androidx.recyclerview.widget.RecyclerView;
+import com.google.android.flexbox.FlexboxLayoutManager;
 
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.load.resource.bitmap.CenterCrop;
@@ -22,12 +26,14 @@ import com.bumptech.glide.load.resource.bitmap.GranularRoundedCorners;
 import com.keylesspalace.tusky.R;
 import com.keylesspalace.tusky.entity.Card;
 import com.keylesspalace.tusky.entity.Status;
+import com.keylesspalace.tusky.entity.EmojiReaction;
 import com.keylesspalace.tusky.interfaces.StatusActionListener;
 import com.keylesspalace.tusky.util.LinkHelper;
 import com.keylesspalace.tusky.util.StatusDisplayOptions;
 import com.keylesspalace.tusky.viewdata.StatusViewData;
 
 import java.text.DateFormat;
+import java.util.List;
 import java.util.Date;
 
 class StatusDetailedViewHolder extends StatusBaseViewHolder {
@@ -40,6 +46,7 @@ class StatusDetailedViewHolder extends StatusBaseViewHolder {
     private TextView cardDescription;
     private TextView cardUrl;
     private View infoDivider;
+    private RecyclerView emojiReactionsView;
 
     StatusDetailedViewHolder(View view) {
         super(view);
@@ -52,6 +59,7 @@ class StatusDetailedViewHolder extends StatusBaseViewHolder {
         cardDescription = view.findViewById(R.id.card_description);
         cardUrl = view.findViewById(R.id.card_link);
         infoDivider = view.findViewById(R.id.status_info_divider);
+        emojiReactionsView = view.findViewById(R.id.status_emoji_reactions);
 
         cardView.setClipToOutline(true);
     }
@@ -120,6 +128,59 @@ class StatusDetailedViewHolder extends StatusBaseViewHolder {
             }
         }
     }
+    
+    private class EmojiReactionViewHolder extends RecyclerView.ViewHolder {
+        public EmojiButton emojiReaction;
+        EmojiReactionViewHolder(View view) {
+            super(view);
+            emojiReaction = view.findViewById(R.id.status_emoji_reaction);
+        }
+    }
+    
+    private class EmojiReactionsAdapter extends RecyclerView.Adapter<EmojiReactionViewHolder> {
+        private List<EmojiReaction> reactions;
+    
+        EmojiReactionsAdapter(List<EmojiReaction> reactions) {
+            this.reactions = reactions;
+            
+        }
+        
+        @Override
+        public EmojiReactionViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+            View view = LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.item_emoji_reaction, parent, false);
+            return new EmojiReactionViewHolder(view);
+        }
+
+        @Override
+        public void onBindViewHolder(EmojiReactionViewHolder holder, int position) {
+            EmojiReaction reaction = reactions.get(position);
+            String str = reaction.getEmoji() + " " + reaction.getCount();
+            
+            // no custom emoji yet!
+            
+            holder.emojiReaction.setText(str);
+        }
+
+        // total number of rows
+        @Override
+        public int getItemCount() {
+            return reactions.size();
+        }
+    }
+    
+    private void setEmojiReactions(@Nullable List<EmojiReaction> reactions) {
+		if(reactions != null) {
+			emojiReactionsView.setVisibility(View.VISIBLE);
+			FlexboxLayoutManager lm = new FlexboxLayoutManager(emojiReactionsView.getContext());
+			// lm.setFlexDirection(FlexDirection.COLUMN);
+            //    StaggeredGridLayoutManager.HORIZONTAL);
+            // lm.setGapStrategy(StaggeredGridLayoutManager.GAP_HANDLING_MOVE_ITEMS_BETWEEN_SPANS);
+			emojiReactionsView.setLayoutManager(lm);
+			emojiReactionsView.setAdapter(new EmojiReactionsAdapter(reactions));
+			//emojiReactionsView.setLayoutManager StaggeredGridLayoutManager
+		}
+    }
 
     @Override
     protected void setupWithStatus(final StatusViewData.Concrete status,
@@ -131,7 +192,7 @@ class StatusDetailedViewHolder extends StatusBaseViewHolder {
             setReblogAndFavCount(status.getReblogsCount(), status.getFavouritesCount(), listener);
 
             setApplication(status.getApplication());
-
+            setEmojiReactions(status.getEmojiReactions());
             View.OnLongClickListener longClickListener = view -> {
                 TextView textView = (TextView) view;
                 ClipboardManager clipboard = (ClipboardManager) view.getContext().getSystemService(Context.CLIPBOARD_SERVICE);

app/src/main/res/layout/item_emoji_reaction.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content">
+
+    <!-- not a best way but I'm lazy to do proper button -->
+    <androidx.emoji.widget.EmojiButton
+        android:id="@+id/status_emoji_reaction"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:lines="1"
+        android:textAlignment="viewStart"
+        android:textColor="?android:attr/textColorPrimary"
+        android:textSize="?attr/status_text_small"
+        tools:text="A 0" />
+
+</FrameLayout>
+ 

app/src/main/res/layout/item_status_detailed.xml

@@ -264,17 +264,29 @@
         app:layout_constraintTop_toBottomOf="@id/status_poll_description"
         tools:text="21 Dec 2018 18:45" />
 
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/status_emoji_reactions"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="4dp"
+        android:layout_marginBottom="4dp"
+        android:nestedScrollingEnabled="false"
+        android:visibility="gone"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/status_timestamp_info" />
+    
     <View
         android:id="@+id/status_info_divider"
         android:layout_width="match_parent"
         android:layout_height="1dp"
-        android:layout_below="@id/status_timestamp_info"
+        android:layout_below="@id/status_emoji_reactions"
         android:layout_marginTop="6dp"
         android:background="?android:attr/listDivider"
         android:importantForAccessibility="no"
         android:paddingStart="16dp"
         android:paddingEnd="16dp"
-        app:layout_constraintTop_toBottomOf="@id/status_timestamp_info" />
+        app:layout_constraintTop_toBottomOf="@id/status_emoji_reactions" />
 
     <TextView
         android:id="@+id/status_reblogs"