Add CommentActivity for sending comments (not implemented yet). Minor UI tweaks.

.idea/assetWizardSettings.xml

@@ -23,7 +23,7 @@
                                 <PersistentState>
                                   <option name="values">
                                     <map>
-                                      <entry key="url" value="jar:file:/home/alex/Android%20Studio/plugins/android/lib/android.jar!/images/material_design_icons/content/ic_clear_black_24dp.xml" />
+                                      <entry key="url" value="jar:file:/home/alex/Android%20Studio/plugins/android/lib/android.jar!/images/material_design_icons/content/ic_send_black_24dp.xml" />
                                     </map>
                                   </option>
                                 </PersistentState>
@@ -34,7 +34,7 @@
                         <option name="values">
                           <map>
                             <entry key="color" value="ffffff" />
-                            <entry key="outputName" value="ic_clear_white_24dp" />
+                            <entry key="outputName" value="ic_send_white_24dp" />
                             <entry key="sourceFile" value="$USER_HOME$/Downloads/outline-search-24px.svg" />
                           </map>
                         </option>

app/build.gradle

@@ -33,7 +33,7 @@ repositories {
 
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
-    implementation 'androidx.appcompat:appcompat:1.1.0-alpha05'
+    implementation 'androidx.appcompat:appcompat:1.1.0-beta01'
     implementation 'com.google.android.material:material:1.1.0-alpha07'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
@@ -75,4 +75,5 @@ dependencies {
     implementation 'pl.droidsonroids.gif:android-gif-drawable:1.2.16'
     implementation 'com.github.Ferfalk:SimpleSearchView:0.1.3'
     implementation 'org.greenrobot:eventbus:3.1.1'
+    implementation 'com.github.chinalwb:are:0.1.5'
 }

app/src/main/AndroidManifest.xml

@@ -19,17 +19,23 @@
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
         android:usesCleartextTraffic="true">
-        <activity android:name=".SearchActivity"
+        <activity
+            android:name=".CommentActivity"
             android:theme="@style/AppTheme.NoActionBar"
+            android:label="@string/comment_activity_label"
+            android:windowSoftInputMode="adjustResize" />
+        <activity
+            android:name=".SearchActivity"
             android:label="@string/search_activity_label"
-            android:parentActivityName=".MainActivity">
+            android:parentActivityName=".MainActivity"
-        </activity>
+            android:theme="@style/AppTheme.NoActionBar" />
         <activity
             android:name=".MainActivity"
             android:label="@string/app_name"
             android:theme="@style/AppTheme.NoActionBarWithTransparentStatusBar">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
@@ -47,7 +53,8 @@
             android:theme="@style/AppTheme.ActionBar.Transparent" />
         <activity
             android:name=".ViewPostDetailActivity"
-            android:parentActivityName=".MainActivity" />
+            android:parentActivityName=".MainActivity"
+            android:theme="@style/AppTheme.NoActionBar"/>
         <activity
             android:name=".ViewSubredditDetailActivity"
             android:parentActivityName=".MainActivity"

app/src/main/java/ml/docilealligator/infinityforreddit/CommentActivity.java

@@ -0,0 +1,127 @@
+package ml.docilealligator.infinityforreddit;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+
+import com.chinalwb.are.AREditText;
+import com.chinalwb.are.styles.toolbar.IARE_Toolbar;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_AlignmentCenter;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_AlignmentLeft;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_AlignmentRight;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_At;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_Bold;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_Hr;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_Image;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_Italic;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_Link;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_ListBullet;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_ListNumber;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_Quote;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_Strikethrough;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_Subscript;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_Superscript;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_Underline;
+import com.chinalwb.are.styles.toolitems.ARE_ToolItem_Video;
+import com.chinalwb.are.styles.toolitems.IARE_ToolItem;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+
+public class CommentActivity extends AppCompatActivity {
+
+    static final String COMMENT_PARENT_TEXT = "CPT";
+    static final String EXTRA_COMMENT_DATA = "ECD";
+    static final int WRITE_COMMENT_REQUEST_CODE = 1;
+
+    @BindView(R.id.toolbar_comment_activity) Toolbar toolbar;
+    @BindView(R.id.comment_parent_text_view_comment_activity) TextView commentParentTextView;
+    @BindView(R.id.arEditText) AREditText commentEditor;
+    @BindView(R.id.areToolbar) IARE_Toolbar editorToolbar;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_comment);
+
+        ButterKnife.bind(this);
+
+        setSupportActionBar(toolbar);
+
+        commentParentTextView.setText(getIntent().getExtras().getString(COMMENT_PARENT_TEXT));
+
+        commentEditor.setBackgroundColor(getResources().getColor(android.R.color.transparent));
+
+        initToolbar();
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.comment_activity, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                finish();
+                return true;
+            case R.id.action_send_comment_activity:
+                CommentData commentData = null;
+                Intent returnIntent = new Intent();
+                returnIntent.putExtra(EXTRA_COMMENT_DATA, commentData);
+                setResult(RESULT_OK, returnIntent);
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    private void initToolbar() {
+        IARE_ToolItem bold = new ARE_ToolItem_Bold();
+        IARE_ToolItem italic = new ARE_ToolItem_Italic();
+        IARE_ToolItem underline = new ARE_ToolItem_Underline();
+        IARE_ToolItem strikethrough = new ARE_ToolItem_Strikethrough();
+        IARE_ToolItem quote = new ARE_ToolItem_Quote();
+        IARE_ToolItem listNumber = new ARE_ToolItem_ListNumber();
+        IARE_ToolItem listBullet = new ARE_ToolItem_ListBullet();
+        IARE_ToolItem hr = new ARE_ToolItem_Hr();
+        IARE_ToolItem link = new ARE_ToolItem_Link();
+        IARE_ToolItem subscript = new ARE_ToolItem_Subscript();
+        IARE_ToolItem superscript = new ARE_ToolItem_Superscript();
+        IARE_ToolItem left = new ARE_ToolItem_AlignmentLeft();
+        IARE_ToolItem center = new ARE_ToolItem_AlignmentCenter();
+        IARE_ToolItem right = new ARE_ToolItem_AlignmentRight();
+        IARE_ToolItem image = new ARE_ToolItem_Image();
+        IARE_ToolItem video = new ARE_ToolItem_Video();
+        IARE_ToolItem at = new ARE_ToolItem_At();
+        editorToolbar.addToolbarItem(bold);
+        editorToolbar.addToolbarItem(italic);
+        editorToolbar.addToolbarItem(underline);
+        editorToolbar.addToolbarItem(strikethrough);
+        editorToolbar.addToolbarItem(quote);
+        editorToolbar.addToolbarItem(listNumber);
+        editorToolbar.addToolbarItem(listBullet);
+        editorToolbar.addToolbarItem(hr);
+        editorToolbar.addToolbarItem(link);
+        editorToolbar.addToolbarItem(subscript);
+        editorToolbar.addToolbarItem(superscript);
+        editorToolbar.addToolbarItem(left);
+        editorToolbar.addToolbarItem(center);
+        editorToolbar.addToolbarItem(right);
+        editorToolbar.addToolbarItem(image);
+        editorToolbar.addToolbarItem(video);
+        editorToolbar.addToolbarItem(at);
+
+        commentEditor.setToolbar(editorToolbar);
+
+        /*setHtml();
+
+        initToolbarArrow();*/
+    }
+}

app/src/main/java/ml/docilealligator/infinityforreddit/CommentData.java

@@ -1,8 +1,11 @@
 package ml.docilealligator.infinityforreddit;
 
+import android.os.Parcel;
+import android.os.Parcelable;
+
 import com.multilevelview.models.RecyclerViewItem;
 
-class CommentData extends RecyclerViewItem {
+class CommentData extends RecyclerViewItem implements Parcelable {
     private String id;
     private String fullName;
     private String author;
@@ -35,6 +38,36 @@ class CommentData extends RecyclerViewItem {
         this.scoreHidden = scoreHidden;
     }
 
+    protected CommentData(Parcel in) {
+        super(0);
+        id = in.readString();
+        fullName = in.readString();
+        author = in.readString();
+        commentTime = in.readString();
+        commentContent = in.readString();
+        score = in.readInt();
+        voteType = in.readInt();
+        isSubmitter = in.readByte() != 0;
+        permalink = in.readString();
+        depth = in.readInt();
+        collapsed = in.readByte() != 0;
+        hasReply = in.readByte() != 0;
+        scoreHidden = in.readByte() != 0;
+        super.setLevel(depth);
+    }
+
+    public static final Creator<CommentData> CREATOR = new Creator<CommentData>() {
+        @Override
+        public CommentData createFromParcel(Parcel in) {
+            return new CommentData(in);
+        }
+
+        @Override
+        public CommentData[] newArray(int size) {
+            return new CommentData[size];
+        }
+    };
+
     public String getId() {
         return id;
     }
@@ -98,4 +131,26 @@ class CommentData extends RecyclerViewItem {
     public void setVoteType(int voteType) {
         this.voteType = voteType;
     }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel parcel, int i) {
+        parcel.writeString(id);
+        parcel.writeString(fullName);
+        parcel.writeString(author);
+        parcel.writeString(commentTime);
+        parcel.writeString(commentContent);
+        parcel.writeInt(score);
+        parcel.writeInt(voteType);
+        parcel.writeByte((byte) (isSubmitter ? 1 : 0));
+        parcel.writeString(permalink);
+        parcel.writeInt(depth);
+        parcel.writeByte((byte) (collapsed ? 1 : 0));
+        parcel.writeByte((byte) (hasReply ? 1 : 0));
+        parcel.writeByte((byte) (scoreHidden ? 1 : 0));
+    }
 }

app/src/main/java/ml/docilealligator/infinityforreddit/CommentMultiLevelRecyclerViewAdapter.java

@@ -258,6 +258,11 @@ class CommentMultiLevelRecyclerViewAdapter extends MultiLevelAdapter {
         notifyItemRangeInserted(sizeBefore, mCommentData.size() - sizeBefore);
     }
 
+    void addComment(CommentData comment) {
+        mCommentData.add(0, comment);
+        notifyItemInserted(0);
+    }
+
     private void setExpandButton(ImageView expandButton, boolean isExpanded) {
         // set the icon based on the current state
         expandButton.setVisibility(View.VISIBLE);
@@ -265,26 +270,16 @@ class CommentMultiLevelRecyclerViewAdapter extends MultiLevelAdapter {
     }
 
     class CommentViewHolder extends RecyclerView.ViewHolder {
-        @BindView(R.id.author_text_view_item_post_comment)
+        @BindView(R.id.author_text_view_item_post_comment) TextView authorTextView;
-        TextView authorTextView;
+        @BindView(R.id.comment_time_text_view_item_post_comment) TextView commentTimeTextView;
-        @BindView(R.id.comment_time_text_view_item_post_comment)
+        @BindView(R.id.comment_markdown_view_item_post_comment) MarkwonView commentMarkdownView;
-        TextView commentTimeTextView;
+        @BindView(R.id.plus_button_item_post_comment) ImageView upvoteButton;
-        @BindView(R.id.comment_markdown_view_item_post_comment)
+        @BindView(R.id.score_text_view_item_post_comment) TextView scoreTextView;
-        MarkwonView commentMarkdownView;
+        @BindView(R.id.minus_button_item_post_comment) ImageView downvoteButton;
-        @BindView(R.id.plus_button_item_post_comment)
+        @BindView(R.id.expand_button_item_post_comment) ImageView expandButton;
-        ImageView upvoteButton;
+        @BindView(R.id.load_more_comments_progress_bar) ProgressBar loadMoreCommentsProgressBar;
-        @BindView(R.id.score_text_view_item_post_comment)
+        @BindView(R.id.reply_button_item_post_comment) ImageView replyButton;
-        TextView scoreTextView;
+        @BindView(R.id.vertical_block_item_post_comment) View verticalBlock;
-        @BindView(R.id.minus_button_item_post_comment)
-        ImageView downvoteButton;
-        @BindView(R.id.expand_button_item_post_comment)
-        ImageView expandButton;
-        @BindView(R.id.load_more_comments_progress_bar)
-        ProgressBar loadMoreCommentsProgressBar;
-        @BindView(R.id.reply_button_item_post_comment)
-        ImageView replyButton;
-        @BindView(R.id.vertical_block_item_post_comment)
-        View verticalBlock;
 
         CommentViewHolder(View itemView) {
             super(itemView);

app/src/main/java/ml/docilealligator/infinityforreddit/MainActivity.java

@@ -382,10 +382,13 @@ public class MainActivity extends AppCompatActivity {
         if (mFragment instanceof FragmentCommunicator) {
             switch (item.getItemId()) {
                 case R.id.action_refresh_main_activity:
-                    ((FragmentCommunicator) mFragment).refresh();
+                    /*((FragmentCommunicator) mFragment).refresh();
                     mFetchUserInfoSuccess = false;
                     mInsertSuccess = false;
-                    loadUserData();
+                    loadUserData();*/
+                    Intent intent = new Intent(this, CommentActivity.class);
+                    intent.putExtra(CommentActivity.EXTRA_COMMENT_DATA, "asdfasdfas");
+                    startActivity(intent);
                     return true;
                 case R.id.action_lazy_mode_main_activity:
                     MenuItem lazyModeItem = mMenu.findItem(R.id.action_lazy_mode_main_activity);

app/src/main/java/ml/docilealligator/infinityforreddit/ViewPostDetailActivity.java

@@ -5,7 +5,6 @@ import android.content.Intent;
 import android.content.SharedPreferences;
 import android.graphics.ColorFilter;
 import android.graphics.PorterDuff;
-import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Bundle;
@@ -19,9 +18,10 @@ import android.widget.RelativeLayout;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
 import androidx.browser.customtabs.CustomTabsIntent;
 import androidx.coordinatorlayout.widget.CoordinatorLayout;
 import androidx.core.content.ContextCompat;
@@ -64,6 +64,9 @@ import retrofit2.Retrofit;
 import ru.noties.markwon.SpannableConfiguration;
 import ru.noties.markwon.view.MarkwonView;
 
+import static ml.docilealligator.infinityforreddit.CommentActivity.EXTRA_COMMENT_DATA;
+import static ml.docilealligator.infinityforreddit.CommentActivity.WRITE_COMMENT_REQUEST_CODE;
+
 public class ViewPostDetailActivity extends AppCompatActivity {
 
     static final String EXTRA_TITLE = "ET";
@@ -91,6 +94,7 @@ public class ViewPostDetailActivity extends AppCompatActivity {
     private LoadSubredditIconAsyncTask mLoadSubredditIconAsyncTask;
 
     @BindView(R.id.coordinator_layout_view_post_detail) CoordinatorLayout mCoordinatorLayout;
+    @BindView(R.id.toolbar_view_post_detail_activity) Toolbar toolbar;
     @BindView(R.id.nested_scroll_view_view_post_detail_activity) NestedScrollView mNestedScrollView;
     @BindView(R.id.subreddit_icon_name_linear_layout_view_post_detail) LinearLayout mSubredditIconNameLinearLayout;
     @BindView(R.id.subreddit_icon_circle_image_view_view_post_detail) AspectRatioGifImageView mSubredditIconGifImageView;
@@ -105,22 +109,18 @@ public class ViewPostDetailActivity extends AppCompatActivity {
     @BindView(R.id.nsfw_text_view_view_post_detail) Chip mNSFWChip;
     @BindView(R.id.link_text_view_view_post_detail) TextView linkTextView;
     @BindView(R.id.image_view_wrapper_view_post_detail) RelativeLayout mRelativeLayout;
-
     @BindView(R.id.load_wrapper_view_post_detail) RelativeLayout mLoadWrapper;
     @BindView(R.id.progress_bar_view_post_detail) ProgressBar mLoadImageProgressBar;
     @BindView(R.id.load_image_error_text_view_view_post_detail) TextView mLoadImageErrorTextView;
     @BindView(R.id.image_view_view_post_detail) AspectRatioImageView mImageView;
     @BindView(R.id.image_view_no_preview_link_view_post_detail) ImageView mNoPreviewLinkImageView;
-
     @BindView(R.id.plus_button_view_post_detail) ImageView mUpvoteButton;
     @BindView(R.id.score_text_view_view_post_detail) TextView mScoreTextView;
     @BindView(R.id.minus_button_view_post_detail) ImageView mDownvoteButton;
     @BindView(R.id.share_button_view_post_detail) ImageView mShareButton;
-
     @BindView(R.id.comment_progress_bar_view_post_detail) CircleProgressBar mCommentProgressbar;
     @BindView(R.id.comment_card_view_view_post_detail) MaterialCardView mCommentCardView;
     @BindView(R.id.recycler_view_view_post_detail) MultiLevelRecyclerView mRecyclerView;
-
     @BindView(R.id.no_comment_wrapper_linear_layout_view_post_detail) LinearLayout mNoCommentWrapperLinearLayout;
     @BindView(R.id.no_comment_image_view_view_post_detail) ImageView mNoCommentImageView;
 
@@ -144,9 +144,8 @@ public class ViewPostDetailActivity extends AppCompatActivity {
 
         ((Infinity) getApplication()).getmAppComponent().inject(this);
 
-        ActionBar actionBar = getSupportActionBar();
+        toolbar.setTitle("");
-        actionBar.setDisplayHomeAsUpEnabled(true);
+        setSupportActionBar(toolbar);
-        actionBar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.colorPrimary)));
 
         mGlide = Glide.with(this);
         mLocale = getResources().getConfiguration().locale;
@@ -684,6 +683,11 @@ public class ViewPostDetailActivity extends AppCompatActivity {
             case R.id.action_refresh_view_post_detail_activity:
                 refresh();
                 return true;
+            case R.id.action_comment_view_post_detail_activity:
+                Intent intent = new Intent(this, CommentActivity.class);
+                intent.putExtra(CommentActivity.COMMENT_PARENT_TEXT, mPost.getTitle());
+                startActivityForResult(intent, WRITE_COMMENT_REQUEST_CODE);
+                return true;
             case android.R.id.home:
                 onBackPressed();
                 return true;
@@ -692,7 +696,16 @@ public class ViewPostDetailActivity extends AppCompatActivity {
     }
 
     @Override
-    protected void onSaveInstanceState(Bundle outState) {
+    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if(resultCode == RESULT_OK && requestCode == WRITE_COMMENT_REQUEST_CODE) {
+            CommentData comment = data.getExtras().getParcelable(EXTRA_COMMENT_DATA);
+            mAdapter.addComment(comment);
+        }
+    }
+
+    @Override
+    protected void onSaveInstanceState(@NonNull Bundle outState) {
         super.onSaveInstanceState(outState);
         outState.putInt(ORIENTATION_STATE, orientation);
         outState.putParcelable(POST_STATE, mPost);

app/src/main/res/drawable/ic_insert_comment_white_24dp.xml

@@ -0,0 +1,5 @@
+<vector android:autoMirrored="true" android:height="24dp"
+    android:tint="#FFFFFF" android:viewportHeight="24.0"
+    android:viewportWidth="24.0" android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M20,2L4,2c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h14l4,4L22,4c0,-1.1 -0.9,-2 -2,-2zM18,14L6,14v-2h12v2zM18,11L6,11L6,9h12v2zM18,8L6,8L6,6h12v2z"/>
+</vector>

app/src/main/res/drawable/ic_send_white_24dp.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M2.01,21L23,12 2.01,3 2,10l15,2 -15,2z"/>
+</vector>

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

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout 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="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".CommentActivity">
+
+    <com.google.android.material.appbar.AppBarLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:theme="@style/AppTheme.AppBarOverlay">
+
+        <androidx.appcompat.widget.Toolbar
+            android:id="@+id/toolbar_comment_activity"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            app:navigationIcon="?attr/homeAsUpIndicator"
+            app:popupTheme="@style/AppTheme.PopupOverlay" />
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior">
+
+        <TextView
+            android:id="@+id/comment_parent_text_view_comment_activity"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="16dp"
+            android:textSize="16sp" />
+
+        <com.chinalwb.are.AREditText
+            android:id="@+id/arEditText"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_margin="8dp"
+            android:layout_weight="1"
+            android:gravity="top"
+            android:hint="@string/write_comment_hint"
+            android:inputType="textMultiLine|textCapSentences"
+            android:textSize="18sp"
+            android:textColor="@color/primaryTextColor"/>
+
+        <com.chinalwb.are.styles.toolbar.ARE_ToolbarDefault
+            android:id="@+id/areToolbar"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center_vertical" />
+
+    </LinearLayout>
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

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

@@ -7,10 +7,25 @@
     android:layout_height="match_parent"
     tools:context=".ViewPostDetailActivity">
 
+    <com.google.android.material.appbar.AppBarLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:theme="@style/AppTheme.AppBarOverlay">
+
+        <androidx.appcompat.widget.Toolbar
+            android:id="@+id/toolbar_view_post_detail_activity"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            app:popupTheme="@style/AppTheme.PopupOverlay"
+            app:navigationIcon="?attr/homeAsUpIndicator" />
+
+    </com.google.android.material.appbar.AppBarLayout>
+
     <androidx.core.widget.NestedScrollView
         android:id="@+id/nested_scroll_view_view_post_detail_activity"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content">
+        android:layout_height="wrap_content"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
         <LinearLayout
             android:layout_width="match_parent"
@@ -339,7 +354,6 @@
 
         </LinearLayout>
 
-
     </androidx.core.widget.NestedScrollView>
 
 </androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/menu/comment_activity.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/action_send_comment_activity"
+        android:orderInCategory="1"
+        android:title="@string/action_send"
+        android:icon="@drawable/ic_send_white_24dp"
+        app:showAsAction="ifRoom" />
+</menu>

app/src/main/res/menu/view_post_detail_activity.xml

@@ -1,10 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/action_comment_view_post_detail_activity"
+        android:orderInCategory="1"
+        android:title="@string/action_add_comment"
+        android:icon="@drawable/ic_insert_comment_white_24dp"
+        app:showAsAction="ifRoom" />
+
     <item
         android:id="@+id/action_refresh_view_post_detail_activity"
         android:orderInCategory="2"
         android:title="@string/action_refresh"
-        android:icon="@drawable/ic_refresh_white_24dp"
+        app:showAsAction="never" />
-        app:showAsAction="always" />
 </menu>

app/src/main/res/values/strings.xml

@@ -2,6 +2,7 @@
     <string name="app_name">Infinity</string>
     <string name="login_activity_label">Login</string>
     <string name="search_activity_label">Search</string>
+    <string name="comment_activity_label">Add Comment</string>
 
     <string name="navigation_drawer_open">Open navigation drawer</string>
     <string name="navigation_drawer_close">Close navigation drawer</string>
@@ -9,9 +10,11 @@
     <string name="action_settings">Settings</string>
     <string name="action_download">Download</string>
     <string name="action_refresh">Refresh</string>
+    <string name="action_add_comment">Add a comment</string>
     <string name="action_search">Search</string>
     <string name="action_start_lazy_mode">Start Lazy Mode</string>
     <string name="action_stop_lazy_mode">Stop Lazy Mode</string>
+    <string name="action_send">Send</string>
 
     <string name="tap_to_retry">Error loading image. Tap to retry.</string>
     <string name="load_posts_error">Error loading posts.\nTap to retry.</string>
@@ -68,4 +71,6 @@
     <string name="lazy_mode_start">Lazy Mode starts in %1$.1fs</string>
     <string name="lazy_mode_stop">Lazy Mode stopped</string>
 
+    <string name="write_comment_hint">Your interesting thoughts here</string>
+
 </resources>