Editing and deleting comments are now available.

.idea/assetWizardSettings.xml

@@ -35,9 +35,9 @@
                           <map>
                             <entry key="assetSourceType" value="FILE" />
                             <entry key="color" value="ffffff" />
-                            <entry key="outputName" value="ic_outline_block_24px" />
+                            <entry key="outputName" value="ic_outline_more_vert_24px" />
                             <entry key="overrideSize" value="true" />
-                            <entry key="sourceFile" value="$USER_HOME$/Downloads/outline-block-24px.svg" />
+                            <entry key="sourceFile" value="$USER_HOME$/Downloads/outline-more_vert-24px.svg" />
                           </map>
                         </option>
                       </PersistentState>

app/src/main/AndroidManifest.xml

@@ -20,6 +20,11 @@
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
         android:usesCleartextTraffic="true">
+        <activity
+            android:name=".EditCommentActivity"
+            android:parentActivityName=".MainActivity"
+            android:theme="@style/AppTheme.NoActionBar"
+            android:windowSoftInputMode="adjustResize" />
         <activity
             android:name=".EditPostActivity"
             android:parentActivityName=".MainActivity"

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

@@ -32,4 +32,5 @@ interface AppComponent {
     void inject(FollowedUsersListingFragment followedUsersListingFragment);
     void inject(SubredditSelectionActivity subredditSelectionActivity);
     void inject(EditPostActivity editPostActivity);
+    void inject(EditCommentActivity editCommentActivity);
 }

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

@@ -6,6 +6,7 @@ import android.graphics.ColorFilter;
 import android.graphics.PorterDuff;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
+import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -19,6 +20,7 @@ import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
 import androidx.browser.customtabs.CustomTabsIntent;
 import androidx.core.content.ContextCompat;
 import androidx.recyclerview.widget.RecyclerView;
@@ -61,6 +63,7 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
     private RedditDataRoomDatabase mRedditDataRoomDatabase;
     private RequestManager mGlide;
     private String mAccessToken;
+    private String mAccountName;
     private Post mPost;
     private ArrayList<CommentData> mVisibleComments;
     private String mSubredditNamePrefixed;
@@ -79,7 +82,7 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
 
     CommentAndPostRecyclerViewAdapter(Activity activity, Retrofit retrofit, Retrofit oauthRetrofit,
                                       RedditDataRoomDatabase redditDataRoomDatabase, RequestManager glide,
-                                      String accessToken, Post post, String subredditNamePrefixed,
+                                      String accessToken, String accountName, Post post, String subredditNamePrefixed,
                                       Locale locale, LoadSubredditIconAsyncTask loadSubredditIconAsyncTask,
                                       CommentRecyclerViewAdapterCallback commentRecyclerViewAdapterCallback) {
         mActivity = activity;
@@ -88,6 +91,7 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
         mRedditDataRoomDatabase = redditDataRoomDatabase;
         mGlide = glide;
         mAccessToken = accessToken;
+        mAccountName = accountName;
         mPost = post;
         mVisibleComments = new ArrayList<>();
         mSubredditNamePrefixed = subredditNamePrefixed;
@@ -425,6 +429,20 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
             params.width = comment.getDepth() * 16;
             ((CommentViewHolder) holder).verticalBlock.setLayoutParams(params);
 
+            if(comment.getAuthor().equals(mAccountName)) {
+                ((CommentViewHolder) holder).moreButton.setVisibility(View.VISIBLE);
+                ((CommentViewHolder) holder).moreButton.setOnClickListener(view -> {
+                    ModifyCommentBottomSheetFragment modifyCommentBottomSheetFragment = new ModifyCommentBottomSheetFragment();
+                    Bundle bundle = new Bundle();
+                    bundle.putString(ModifyCommentBottomSheetFragment.EXTRA_ACCESS_TOKEN, mAccessToken);
+                    bundle.putString(ModifyCommentBottomSheetFragment.EXTRA_COMMENT_CONTENT, comment.getCommentContent());
+                    bundle.putString(ModifyCommentBottomSheetFragment.EXTRA_COMMENT_FULLNAME, comment.getFullName());
+                    bundle.putInt(ModifyCommentBottomSheetFragment.EXTRA_POSITION, holder.getAdapterPosition() - 1);
+                    modifyCommentBottomSheetFragment.setArguments(bundle);
+                    modifyCommentBottomSheetFragment.show(((AppCompatActivity) mActivity).getSupportFragmentManager(), modifyCommentBottomSheetFragment.getTag());
+                });
+            }
+
             if (comment.hasReply()) {
                 if(comment.isExpanded()) {
                     ((CommentViewHolder) holder).expandButton.setImageResource(R.drawable.ic_expand_less_black_20dp);
@@ -436,11 +454,11 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
 
             switch (comment.getVoteType()) {
                 case 1:
-                    ((CommentViewHolder) holder).upvoteButton
+                    ((CommentViewHolder) holder).upVoteButton
                             .setColorFilter(ContextCompat.getColor(mActivity, R.color.colorPrimary), android.graphics.PorterDuff.Mode.SRC_IN);
                     break;
                 case 2:
-                    ((CommentViewHolder) holder).downvoteButton
+                    ((CommentViewHolder) holder).downVoteButton
                             .setColorFilter(ContextCompat.getColor(mActivity, R.color.minusButtonColor), android.graphics.PorterDuff.Mode.SRC_IN);
                     break;
             }
@@ -638,12 +656,29 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
         return mVisibleComments;
     }
 
+    void editComment(String commentContent, int position) {
+        mVisibleComments.get(position).setCommentContent(commentContent);
+        notifyItemChanged(position + 1);
+    }
+
+    void deleteComment(int position) {
+        if(mVisibleComments.get(position).hasReply()) {
+            mVisibleComments.get(position).setAuthor("[deleted]");
+            mVisibleComments.get(position).setCommentContent("[deleted]");
+            notifyItemChanged(position + 1);
+        } else {
+            mVisibleComments.remove(position);
+            notifyItemRemoved(position + 1);
+        }
+    }
+
     @Override
     public void onViewRecycled(@NonNull RecyclerView.ViewHolder holder) {
         if (holder instanceof CommentViewHolder) {
+            ((CommentViewHolder) holder).moreButton.setVisibility(View.GONE);
             ((CommentViewHolder) holder).expandButton.setVisibility(View.GONE);
-            ((CommentViewHolder) holder).upvoteButton.clearColorFilter();
+            ((CommentViewHolder) holder).upVoteButton.clearColorFilter();
-            ((CommentViewHolder) holder).downvoteButton.clearColorFilter();
+            ((CommentViewHolder) holder).downVoteButton.clearColorFilter();
         }
     }
 
@@ -854,9 +889,10 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
         @BindView(R.id.author_text_view_item_post_comment) TextView authorTextView;
         @BindView(R.id.comment_time_text_view_item_post_comment) TextView commentTimeTextView;
         @BindView(R.id.comment_markdown_view_item_post_comment) CustomMarkwonView commentMarkdownView;
-        @BindView(R.id.plus_button_item_post_comment) ImageView upvoteButton;
+        @BindView(R.id.up_vote_button_item_post_comment) ImageView upVoteButton;
         @BindView(R.id.score_text_view_item_post_comment) TextView scoreTextView;
-        @BindView(R.id.minus_button_item_post_comment) ImageView downvoteButton;
+        @BindView(R.id.down_vote_button_item_post_comment) ImageView downVoteButton;
+        @BindView(R.id.more_button_item_post_comment) ImageView moreButton;
         @BindView(R.id.expand_button_item_post_comment) ImageView expandButton;
         @BindView(R.id.share_button_item_post_comment) ImageView shareButton;
         @BindView(R.id.reply_button_item_post_comment) ImageView replyButton;
@@ -906,7 +942,7 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
                 mActivity.startActivityForResult(intent, CommentActivity.WRITE_COMMENT_REQUEST_CODE);
             });
 
-            upvoteButton.setOnClickListener(view -> {
+            upVoteButton.setOnClickListener(view -> {
                 if(mAccessToken == null) {
                     Toast.makeText(mActivity, R.string.login_first, Toast.LENGTH_SHORT).show();
                     return;
@@ -915,18 +951,18 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
                 int previousVoteType = mVisibleComments.get(getAdapterPosition() - 1).getVoteType();
                 String newVoteType;
 
-                downvoteButton.clearColorFilter();
+                downVoteButton.clearColorFilter();
 
                 if(previousVoteType != CommentData.VOTE_TYPE_UPVOTE) {
                     //Not upvoted before
                     mVisibleComments.get(getAdapterPosition() - 1).setVoteType(CommentData.VOTE_TYPE_UPVOTE);
                     newVoteType = RedditUtils.DIR_UPVOTE;
-                    upvoteButton.setColorFilter(ContextCompat.getColor(mActivity, R.color.backgroundColorPrimaryDark), android.graphics.PorterDuff.Mode.SRC_IN);
+                    upVoteButton.setColorFilter(ContextCompat.getColor(mActivity, R.color.backgroundColorPrimaryDark), android.graphics.PorterDuff.Mode.SRC_IN);
                 } else {
                     //Upvoted before
                     mVisibleComments.get(getAdapterPosition() - 1).setVoteType(CommentData.VOTE_TYPE_NO_VOTE);
                     newVoteType = RedditUtils.DIR_UNVOTE;
-                    upvoteButton.clearColorFilter();
+                    upVoteButton.clearColorFilter();
                 }
 
                 scoreTextView.setText(Integer.toString(mVisibleComments.get(getAdapterPosition() - 1).getScore() + mVisibleComments.get(getAdapterPosition() - 1).getVoteType()));
@@ -936,13 +972,13 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
                     public void onVoteThingSuccess(int position) {
                         if(newVoteType.equals(RedditUtils.DIR_UPVOTE)) {
                             mVisibleComments.get(getAdapterPosition() - 1).setVoteType(CommentData.VOTE_TYPE_UPVOTE);
-                            upvoteButton.setColorFilter(ContextCompat.getColor(mActivity, R.color.backgroundColorPrimaryDark), android.graphics.PorterDuff.Mode.SRC_IN);
+                            upVoteButton.setColorFilter(ContextCompat.getColor(mActivity, R.color.backgroundColorPrimaryDark), android.graphics.PorterDuff.Mode.SRC_IN);
                         } else {
                             mVisibleComments.get(getAdapterPosition() - 1).setVoteType(CommentData.VOTE_TYPE_NO_VOTE);
-                            upvoteButton.clearColorFilter();
+                            upVoteButton.clearColorFilter();
                         }
 
-                        downvoteButton.clearColorFilter();
+                        downVoteButton.clearColorFilter();
                         scoreTextView.setText(Integer.toString(mVisibleComments.get(getAdapterPosition() - 1).getScore() + mVisibleComments.get(getAdapterPosition() - 1).getVoteType()));
                     }
 
@@ -951,7 +987,7 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
                 }, mVisibleComments.get(getAdapterPosition() - 1).getFullName(), newVoteType, getAdapterPosition());
             });
 
-            downvoteButton.setOnClickListener(view -> {
+            downVoteButton.setOnClickListener(view -> {
                 if(mAccessToken == null) {
                     Toast.makeText(mActivity, R.string.login_first, Toast.LENGTH_SHORT).show();
                     return;
@@ -960,18 +996,18 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
                 int previousVoteType = mVisibleComments.get(getAdapterPosition() - 1).getVoteType();
                 String newVoteType;
 
-                upvoteButton.clearColorFilter();
+                upVoteButton.clearColorFilter();
 
                 if(previousVoteType != CommentData.VOTE_TYPE_DOWNVOTE) {
                     //Not downvoted before
                     mVisibleComments.get(getAdapterPosition() - 1).setVoteType(CommentData.VOTE_TYPE_DOWNVOTE);
                     newVoteType = RedditUtils.DIR_DOWNVOTE;
-                    downvoteButton.setColorFilter(ContextCompat.getColor(mActivity, R.color.colorAccent), android.graphics.PorterDuff.Mode.SRC_IN);
+                    downVoteButton.setColorFilter(ContextCompat.getColor(mActivity, R.color.colorAccent), android.graphics.PorterDuff.Mode.SRC_IN);
                 } else {
                     //Downvoted before
                     mVisibleComments.get(getAdapterPosition() - 1).setVoteType(CommentData.VOTE_TYPE_NO_VOTE);
                     newVoteType = RedditUtils.DIR_UNVOTE;
-                    downvoteButton.clearColorFilter();
+                    downVoteButton.clearColorFilter();
                 }
 
                 scoreTextView.setText(Integer.toString(mVisibleComments.get(getAdapterPosition() - 1).getScore() + mVisibleComments.get(getAdapterPosition() - 1).getVoteType()));
@@ -981,13 +1017,13 @@ class CommentAndPostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerVie
                     public void onVoteThingSuccess(int position1) {
                         if(newVoteType.equals(RedditUtils.DIR_DOWNVOTE)) {
                             mVisibleComments.get(getAdapterPosition() - 1).setVoteType(CommentData.VOTE_TYPE_DOWNVOTE);
-                            downvoteButton.setColorFilter(ContextCompat.getColor(mActivity, R.color.colorAccent), android.graphics.PorterDuff.Mode.SRC_IN);
+                            downVoteButton.setColorFilter(ContextCompat.getColor(mActivity, R.color.colorAccent), android.graphics.PorterDuff.Mode.SRC_IN);
                         } else {
                             mVisibleComments.get(getAdapterPosition() - 1).setVoteType(CommentData.VOTE_TYPE_NO_VOTE);
-                            downvoteButton.clearColorFilter();
+                            downVoteButton.clearColorFilter();
                         }
 
-                        upvoteButton.clearColorFilter();
+                        upVoteButton.clearColorFilter();
                         scoreTextView.setText(Integer.toString(mVisibleComments.get(getAdapterPosition() - 1).getScore() + mVisibleComments.get(getAdapterPosition() - 1).getVoteType()));
                     }
 

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

@@ -116,6 +116,10 @@ class CommentData implements Parcelable {
         return author;
     }
 
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
     public String getCommentTime() {
         return commentTime;
     }
@@ -124,6 +128,10 @@ class CommentData implements Parcelable {
         return commentContent;
     }
 
+    public void setCommentContent(String commentContent) {
+        this.commentContent = commentContent;
+    }
+
     public String getLinkId() {
         return linkId;
     }

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

@@ -40,6 +40,7 @@ public class CommentsListingFragment extends Fragment implements FragmentCommuni
 
     static final String EXTRA_USERNAME_KEY = "ENK";
     static final String EXTRA_ACCESS_TOKEN = "EAT";
+    static final String EXTRA_ACCOUNT_NAME = "EAN";
 
     @BindView(R.id.coordinator_layout_comments_listing_fragment) CoordinatorLayout mCoordinatorLayout;
     @BindView(R.id.recycler_view_comments_listing_fragment) RecyclerView mCommentRecyclerView;
@@ -93,7 +94,8 @@ public class CommentsListingFragment extends Fragment implements FragmentCommuni
         mCommentRecyclerView.setLayoutManager(new LinearLayoutManager(activity));
 
         mAdapter = new CommentsListingRecyclerViewAdapter(activity, mOauthRetrofit,
-                getArguments().getString(EXTRA_ACCESS_TOKEN), () -> mCommentViewModel.retryLoadingMore());
+                getArguments().getString(EXTRA_ACCESS_TOKEN), getArguments().getString(EXTRA_ACCOUNT_NAME),
+                () -> mCommentViewModel.retryLoadingMore());
 
         String username = getArguments().getString(EXTRA_USERNAME_KEY);
 

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

@@ -2,17 +2,18 @@ package ml.docilealligator.infinityforreddit;
 
 import android.content.Context;
 import android.content.Intent;
+import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
-import android.widget.RelativeLayout;
 import android.widget.TextView;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.content.ContextCompat;
 import androidx.paging.PagedListAdapter;
 import androidx.recyclerview.widget.DiffUtil;
@@ -27,6 +28,7 @@ class CommentsListingRecyclerViewAdapter extends PagedListAdapter<CommentData, R
     private Context mContext;
     private Retrofit mOauthRetrofit;
     private String mAccessToken;
+    private String mAccountName;
     private int mTextColorPrimaryDark;
     private int mColorAccent;
 
@@ -42,11 +44,12 @@ class CommentsListingRecyclerViewAdapter extends PagedListAdapter<CommentData, R
     }
 
     protected CommentsListingRecyclerViewAdapter(Context context, Retrofit oauthRetrofit, String accessToken,
-                                                 RetryLoadingMoreCallback retryLoadingMoreCallback) {
+                                                 String accountName, RetryLoadingMoreCallback retryLoadingMoreCallback) {
         super(DIFF_CALLBACK);
         mContext = context;
         mOauthRetrofit = oauthRetrofit;
         mAccessToken = accessToken;
+        mAccountName = accountName;
         mRetryLoadingMoreCallback = retryLoadingMoreCallback;
         mTextColorPrimaryDark = mContext.getResources().getColor(R.color.colorPrimaryDarkDayNightTheme);
         mColorAccent = mContext.getResources().getColor(R.color.colorAccent);
@@ -114,6 +117,20 @@ class CommentsListingRecyclerViewAdapter extends PagedListAdapter<CommentData, R
                             .setColorFilter(ContextCompat.getColor(mContext, R.color.minusButtonColor), android.graphics.PorterDuff.Mode.SRC_IN);
                     break;
             }
+
+            if(comment.getAuthor().equals(mAccountName)) {
+                ((DataViewHolder) holder).moreButton.setVisibility(View.VISIBLE);
+                ((DataViewHolder) holder).moreButton.setOnClickListener(view -> {
+                    ModifyCommentBottomSheetFragment modifyCommentBottomSheetFragment = new ModifyCommentBottomSheetFragment();
+                    Bundle bundle = new Bundle();
+                    bundle.putString(ModifyCommentBottomSheetFragment.EXTRA_ACCESS_TOKEN, mAccessToken);
+                    bundle.putString(ModifyCommentBottomSheetFragment.EXTRA_COMMENT_CONTENT, comment.getCommentContent());
+                    bundle.putString(ModifyCommentBottomSheetFragment.EXTRA_COMMENT_FULLNAME, comment.getFullName());
+                    bundle.putInt(ModifyCommentBottomSheetFragment.EXTRA_POSITION, holder.getAdapterPosition() - 1);
+                    modifyCommentBottomSheetFragment.setArguments(bundle);
+                    modifyCommentBottomSheetFragment.show(((AppCompatActivity) mContext).getSupportFragmentManager(), modifyCommentBottomSheetFragment.getTag());
+                });
+            }
         }
     }
 
@@ -165,9 +182,10 @@ class CommentsListingRecyclerViewAdapter extends PagedListAdapter<CommentData, R
         @BindView(R.id.author_text_view_item_post_comment) TextView authorTextView;
         @BindView(R.id.comment_time_text_view_item_post_comment) TextView commentTimeTextView;
         @BindView(R.id.comment_markdown_view_item_post_comment) CustomMarkwonView commentMarkdownView;
-        @BindView(R.id.plus_button_item_post_comment) ImageView upvoteButton;
+        @BindView(R.id.up_vote_button_item_post_comment) ImageView upvoteButton;
         @BindView(R.id.score_text_view_item_post_comment) TextView scoreTextView;
-        @BindView(R.id.minus_button_item_post_comment) ImageView downvoteButton;
+        @BindView(R.id.down_vote_button_item_post_comment) ImageView downvoteButton;
+        @BindView(R.id.more_button_item_post_comment) ImageView moreButton;
         @BindView(R.id.share_button_item_post_comment) ImageView shareButton;
         @BindView(R.id.reply_button_item_post_comment) ImageView replyButton;
 
@@ -185,11 +203,6 @@ class CommentsListingRecyclerViewAdapter extends PagedListAdapter<CommentData, R
 
             commentMarkdownView.setOnClickListener(view -> linearLayout.callOnClick());
 
-            RelativeLayout.LayoutParams lp = (RelativeLayout.LayoutParams) shareButton.getLayoutParams();
-            lp.addRule(RelativeLayout.ALIGN_PARENT_END);
-            lp.setMarginEnd(0);
-            shareButton.setLayoutParams(lp);
-
             shareButton.setOnClickListener(view -> {
                 Intent intent = new Intent(Intent.ACTION_SEND);
                 intent.setType("text/plain");

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

@@ -0,0 +1,137 @@
+package ml.docilealligator.infinityforreddit;
+
+import android.content.Intent;
+import android.content.res.Configuration;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.Window;
+import android.widget.EditText;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.coordinatorlayout.widget.CoordinatorLayout;
+import androidx.core.content.ContextCompat;
+
+import com.google.android.material.snackbar.Snackbar;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.inject.Inject;
+import javax.inject.Named;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+import retrofit2.Retrofit;
+
+public class EditCommentActivity extends AppCompatActivity {
+
+    static final String EXTRA_CONTENT = "EC";
+    static final String EXTRA_FULLNAME = "EF";
+    static final String EXTRA_ACCESS_TOKEN = "EAT";
+    static final String EXTRA_POSITION = "EP";
+
+    static final String EXTRA_EDITED_COMMENT_CONTENT = "EECC";
+    static final String EXTRA_EDITED_COMMENT_POSITION = "EECP";
+
+    @BindView(R.id.coordinator_layout_edit_comment_activity) CoordinatorLayout coordinatorLayout;
+    @BindView(R.id.toolbar_edit_comment_activity) Toolbar toolbar;
+    @BindView(R.id.post_text_content_edit_text_edit_comment_activity) EditText contentEditText;
+
+    private String mFullName;
+    private String mAccessToken;
+    private boolean isSubmitting = false;
+
+    @Inject
+    @Named("oauth")
+    Retrofit mOauthRetrofit;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_edit_comment);
+
+        ButterKnife.bind(this);
+
+        ((Infinity) getApplication()).getAppComponent().inject(this);
+
+        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            Window window = getWindow();
+            if((getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK) != Configuration.UI_MODE_NIGHT_YES) {
+                window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR);
+            }
+            window.setNavigationBarColor(ContextCompat.getColor(this, R.color.navBarColor));
+        }
+
+        setSupportActionBar(toolbar);
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+
+        mFullName = getIntent().getExtras().getString(EXTRA_FULLNAME);
+        mAccessToken = getIntent().getExtras().getString(EXTRA_ACCESS_TOKEN);
+        contentEditText.setText(getIntent().getExtras().getString(EXTRA_CONTENT));
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.edit_comment_activity, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
+        if(item.getItemId() == R.id.action_send_edit_comment_activity) {
+            if(!isSubmitting) {
+                isSubmitting = true;
+
+                Snackbar.make(coordinatorLayout, R.string.posting, Snackbar.LENGTH_SHORT).show();
+
+                String content = contentEditText.getText().toString();
+
+                Map<String, String> params = new HashMap<>();
+                params.put(RedditUtils.THING_ID_KEY, mFullName);
+                params.put(RedditUtils.TEXT_KEY, content);
+
+                mOauthRetrofit.create(RedditAPI.class)
+                        .editPostOrComment(RedditUtils.getOAuthHeader(mAccessToken), params)
+                        .enqueue(new Callback<String>() {
+                            @Override
+                            public void onResponse(@NonNull Call<String> call, @NonNull Response<String> response) {
+                                isSubmitting = false;
+                                if(response.isSuccessful()) {
+                                    Toast.makeText(EditCommentActivity.this, R.string.edit_success, Toast.LENGTH_SHORT).show();
+
+                                    Intent returnIntent = new Intent();
+                                    returnIntent.putExtra(EXTRA_EDITED_COMMENT_CONTENT, content);
+                                    returnIntent.putExtra(EXTRA_EDITED_COMMENT_POSITION, getIntent().getExtras().getInt(EXTRA_POSITION));
+                                    setResult(RESULT_OK, returnIntent);
+
+                                    finish();
+                                } else {
+                                    Snackbar.make(coordinatorLayout, R.string.post_failed, Snackbar.LENGTH_SHORT).show();
+                                }
+                            }
+
+                            @Override
+                            public void onFailure(@NonNull Call<String> call, @NonNull Throwable t) {
+                                isSubmitting = false;
+                                Snackbar.make(coordinatorLayout, R.string.post_failed, Snackbar.LENGTH_SHORT).show();
+                            }
+                        });
+
+            }
+            return true;
+        } else if(item.getItemId() == android.R.id.home) {
+            finish();
+            return true;
+        }
+        return false;
+    }
+}

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

@@ -0,0 +1,84 @@
+package ml.docilealligator.infinityforreddit;
+
+
+import android.app.Activity;
+import android.content.Intent;
+import android.content.res.Configuration;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.fragment.app.Fragment;
+
+import com.deishelon.roundedbottomsheet.RoundedBottomSheetDialogFragment;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+
+
+/**
+ * A simple {@link Fragment} subclass.
+ */
+public class ModifyCommentBottomSheetFragment extends RoundedBottomSheetDialogFragment {
+
+    static final String EXTRA_COMMENT_FULLNAME = "ECF";
+    static final String EXTRA_COMMENT_CONTENT = "ECC";
+    static final String EXTRA_ACCESS_TOKEN = "EAT";
+    static final String EXTRA_POSITION = "EP";
+
+    public ModifyCommentBottomSheetFragment() {
+        // Required empty public constructor
+    }
+
+    @BindView(R.id.edit_text_view_modify_comment_bottom_sheet_fragment) TextView editTextView;
+    @BindView(R.id.delete_text_view_modify_comment_bottom_sheet_fragment) TextView deleteTextView;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        View rootView = inflater.inflate(R.layout.fragment_modify_comment_bottom_sheet, container, false);
+        ButterKnife.bind(this, rootView);
+
+        Activity activity = getActivity();
+
+        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O
+                && (getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK) != Configuration.UI_MODE_NIGHT_YES) {
+            rootView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR);
+        }
+
+        Bundle bundle = getArguments();
+        String fullName = bundle.getString(EXTRA_COMMENT_FULLNAME);
+        String content = bundle.getString(EXTRA_COMMENT_CONTENT);
+        String accessToken = bundle.getString(EXTRA_ACCESS_TOKEN);
+
+        editTextView.setOnClickListener(view -> {
+            Intent intent = new Intent(getActivity(), EditCommentActivity.class);
+            intent.putExtra(EditCommentActivity.EXTRA_ACCESS_TOKEN, accessToken);
+            intent.putExtra(EditCommentActivity.EXTRA_FULLNAME, fullName);
+            intent.putExtra(EditCommentActivity.EXTRA_CONTENT, content);
+            intent.putExtra(EditCommentActivity.EXTRA_POSITION, bundle.getInt(EXTRA_POSITION));
+            if(activity instanceof ViewPostDetailActivity) {
+                activity.startActivityForResult(intent, ViewPostDetailActivity.EDIT_COMMENT_REQUEST_CODE);
+            } else {
+                startActivity(intent);
+            }
+
+            dismiss();
+        });
+
+        deleteTextView.setOnClickListener(view -> {
+            dismiss();
+            if(activity instanceof ViewPostDetailActivity) {
+                ((ViewPostDetailActivity) activity).deleteComment(fullName, bundle.getInt(EXTRA_POSITION));
+            } else if(activity instanceof ViewUserDetailActivity) {
+                ((ViewUserDetailActivity) activity).deleteComment(fullName);
+            }
+        });
+
+        return rootView;
+    }
+
+}

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

@@ -59,6 +59,7 @@ public class ViewPostDetailActivity extends AppCompatActivity {
     static final String EXTRA_POST_ID = "EPI";
 
     private static final int EDIT_POST_REQUEST_CODE = 2;
+    static final int EDIT_COMMENT_REQUEST_CODE = 3;
 
     private RequestManager mGlide;
     private Locale mLocale;
@@ -224,7 +225,7 @@ public class ViewPostDetailActivity extends AppCompatActivity {
                 mMenu.findItem(R.id.action_delete_view_post_detail_activity).setVisible(true);
             }
             mAdapter = new CommentAndPostRecyclerViewAdapter(ViewPostDetailActivity.this, mRetrofit,
-                    mOauthRetrofit, mRedditDataRoomDatabase, mGlide, mAccessToken, mPost,
+                    mOauthRetrofit, mRedditDataRoomDatabase, mGlide, mAccessToken, mAccountName, mPost,
                     mPost.getSubredditNamePrefixed(), mLocale, mLoadSubredditIconAsyncTask,
                     new CommentAndPostRecyclerViewAdapter.CommentRecyclerViewAdapterCallback() {
                         @Override
@@ -290,7 +291,7 @@ public class ViewPostDetailActivity extends AppCompatActivity {
                             }
 
                             mAdapter = new CommentAndPostRecyclerViewAdapter(ViewPostDetailActivity.this, mRetrofit,
-                                    mOauthRetrofit, mRedditDataRoomDatabase, mGlide, mAccessToken, mPost,
+                                    mOauthRetrofit, mRedditDataRoomDatabase, mGlide, mAccessToken, mAccountName, mPost,
                                     mPost.getSubredditNamePrefixed(), mLocale, mLoadSubredditIconAsyncTask,
                                     new CommentAndPostRecyclerViewAdapter.CommentRecyclerViewAdapterCallback() {
                                         @Override
@@ -481,6 +482,27 @@ public class ViewPostDetailActivity extends AppCompatActivity {
         }
     }
 
+    void deleteComment(String fullName, int position) {
+        new MaterialAlertDialogBuilder(this, R.style.MaterialAlertDialogTheme)
+                .setTitle(R.string.delete_this_comment)
+                .setMessage(R.string.are_you_sure)
+                .setPositiveButton(R.string.delete, (dialogInterface, i)
+                        -> DeleteThing.delete(mOauthRetrofit, fullName, mAccessToken, new DeleteThing.DeleteThingListener() {
+                    @Override
+                    public void deleteSuccess() {
+                        Toast.makeText(ViewPostDetailActivity.this, R.string.delete_post_success, Toast.LENGTH_SHORT).show();
+                        mAdapter.deleteComment(position);
+                    }
+
+                    @Override
+                    public void deleteFailed() {
+                        Toast.makeText(ViewPostDetailActivity.this, R.string.delete_post_failed, Toast.LENGTH_SHORT).show();
+                    }
+                }))
+                .setNegativeButton(R.string.cancel, null)
+                .show();
+    }
+
     @Subscribe
     public void onPostUpdateEvent(PostUpdateEventToDetailActivity event) {
         if(mPost.getId().equals(event.postId)) {
@@ -578,6 +600,11 @@ public class ViewPostDetailActivity extends AppCompatActivity {
             if(resultCode == RESULT_OK) {
                 refresh(true);
             }
+        } else if(requestCode == EDIT_COMMENT_REQUEST_CODE) {
+            if(resultCode == RESULT_OK) {
+                mAdapter.editComment(data.getExtras().getString(EditCommentActivity.EXTRA_EDITED_COMMENT_CONTENT),
+                        data.getExtras().getInt(EditCommentActivity.EXTRA_EDITED_COMMENT_POSITION));
+            }
         }
     }
 

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

@@ -31,6 +31,7 @@ import com.bumptech.glide.request.RequestOptions;
 import com.google.android.material.appbar.AppBarLayout;
 import com.google.android.material.appbar.CollapsingToolbarLayout;
 import com.google.android.material.chip.Chip;
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 import com.google.android.material.snackbar.Snackbar;
 import com.google.android.material.tabs.TabLayout;
 
@@ -385,6 +386,26 @@ public class ViewUserDetailActivity extends AppCompatActivity {
         }
     }
 
+    void deleteComment(String fullName) {
+        new MaterialAlertDialogBuilder(this, R.style.MaterialAlertDialogTheme)
+                .setTitle(R.string.delete_this_comment)
+                .setMessage(R.string.are_you_sure)
+                .setPositiveButton(R.string.delete, (dialogInterface, i)
+                        -> DeleteThing.delete(mOauthRetrofit, fullName, mAccessToken, new DeleteThing.DeleteThingListener() {
+                    @Override
+                    public void deleteSuccess() {
+                        Toast.makeText(ViewUserDetailActivity.this, R.string.delete_post_success, Toast.LENGTH_SHORT).show();
+                    }
+
+                    @Override
+                    public void deleteFailed() {
+                        Toast.makeText(ViewUserDetailActivity.this, R.string.delete_post_failed, Toast.LENGTH_SHORT).show();
+                    }
+                }))
+                .setNegativeButton(R.string.cancel, null)
+                .show();
+    }
+
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         getMenuInflater().inflate(R.menu.view_user_detail_activity, menu);
@@ -519,6 +540,7 @@ public class ViewUserDetailActivity extends AppCompatActivity {
             Bundle bundle = new Bundle();
             bundle.putString(CommentsListingFragment.EXTRA_USERNAME_KEY, username);
             bundle.putString(CommentsListingFragment.EXTRA_ACCESS_TOKEN, mAccessToken);
+            bundle.putString(CommentsListingFragment.EXTRA_ACCOUNT_NAME, mAccountName);
             fragment.setArguments(bundle);
             return fragment;
         }
@@ -560,5 +582,11 @@ public class ViewUserDetailActivity extends AppCompatActivity {
                 commentsListingFragment.refresh();
             }
         }
+
+        public void refreshComments() {
+            if(commentsListingFragment != null) {
+                commentsListingFragment.refresh();
+            }
+        }
     }
 }

app/src/main/res/drawable/ic_outline_more_vert_24px.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:fillColor="#FF000000"
+      android:pathData="M12,8c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2 -2,0.9 -2,2 0.9,2 2,2zM12,10c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM12,16c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2z"/>
+</vector>

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

@@ -0,0 +1,37 @@
+<?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"
+    android:id="@+id/coordinator_layout_edit_comment_activity"
+    tools:context=".EditCommentActivity">
+
+    <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_edit_comment_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>
+
+    <EditText
+        android:id="@+id/post_text_content_edit_text_edit_comment_activity"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="top"
+        android:padding="16dp"
+        android:hint="@string/post_text_content_hint"
+        android:inputType="textCapSentences|textMultiLine"
+        android:textSize="18sp"
+        android:background="#00000000"
+        android:textColor="@color/primaryTextColor"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

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

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingBottom="8dp"
+    android:orientation="vertical"
+    tools:context=".ModifyCommentBottomSheetFragment">
+
+    <TextView
+        android:id="@+id/edit_text_view_modify_comment_bottom_sheet_fragment"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="16dp"
+        android:paddingBottom="16dp"
+        android:paddingStart="32dp"
+        android:paddingEnd="32dp"
+        android:text="@string/edit"
+        android:textColor="@color/primaryTextColor"
+        android:clickable="true"
+        android:focusable="true"
+        android:background="?attr/selectableItemBackground" />
+
+    <TextView
+        android:id="@+id/delete_text_view_modify_comment_bottom_sheet_fragment"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="16dp"
+        android:paddingBottom="16dp"
+        android:paddingStart="32dp"
+        android:paddingEnd="32dp"
+        android:text="@string/delete"
+        android:textColor="@color/primaryTextColor"
+        android:clickable="true"
+        android:focusable="true"
+        android:background="?attr/selectableItemBackground" />
+
+</LinearLayout>

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

@@ -96,7 +96,6 @@
         android:id="@+id/video_type_linear_layout_post_type_bottom_sheet_fragment"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_gravity="center_vertical"
         android:paddingTop="16dp"
         android:paddingBottom="16dp"
         android:paddingStart="32dp"

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

@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout 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:id="@+id/linear_layout_item_comment"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
@@ -7,7 +9,7 @@
 
     <View
         android:id="@+id/vertical_block_item_post_comment"
-        android:layout_width="wrap_content"
+        android:layout_width="0dp"
         android:layout_height="match_parent"
         android:background="@color/colorPrimaryDarkDayNightTheme"/>
 
@@ -50,7 +52,110 @@
             android:layout_marginBottom="8dp"
             android:textColor="@color/primaryTextColor"/>
 
-        <RelativeLayout
+        <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <ImageView
+                android:id="@+id/up_vote_button_item_post_comment"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="16dp"
+                android:background="?actionBarItemBackground"
+                android:clickable="true"
+                android:focusable="true"
+                android:src="@drawable/ic_arrow_upward_black_20dp"
+                android:tint="@android:color/tab_indicator_text"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintBottom_toBottomOf="parent" />
+
+            <TextView
+                android:id="@+id/score_text_view_item_post_comment"
+                android:layout_width="64dp"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="8dp"
+                android:gravity="center"
+                app:layout_constraintStart_toEndOf="@+id/up_vote_button_item_post_comment"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintBottom_toBottomOf="parent"/>
+
+            <ImageView
+                android:id="@+id/down_vote_button_item_post_comment"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="8dp"
+                android:layout_marginEnd="16dp"
+                android:background="?actionBarItemBackground"
+                android:clickable="true"
+                android:focusable="true"
+                android:src="@drawable/ic_arrow_downward_black_20dp"
+                android:tint="@android:color/tab_indicator_text"
+                app:layout_constraintStart_toEndOf="@+id/score_text_view_item_post_comment"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintBottom_toBottomOf="parent" />
+
+            <ImageView
+                android:id="@+id/more_button_item_post_comment"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginEnd="16dp"
+                android:background="?actionBarItemBackground"
+                android:clickable="true"
+                android:focusable="true"
+                android:src="@drawable/ic_outline_more_vert_24px"
+                android:tint="@android:color/tab_indicator_text"
+                android:visibility="gone"
+                app:layout_constraintEnd_toStartOf="@+id/expand_button_item_post_comment"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintBottom_toBottomOf="parent"/>
+
+            <ImageView
+                android:id="@+id/expand_button_item_post_comment"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginEnd="16dp"
+                android:background="?actionBarItemBackground"
+                android:clickable="true"
+                android:focusable="true"
+                android:src="@drawable/ic_expand_less_black_20dp"
+                android:tint="@android:color/tab_indicator_text"
+                android:visibility="gone"
+                app:layout_constraintEnd_toStartOf="@+id/share_button_item_post_comment"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintBottom_toBottomOf="parent"/>
+
+            <ImageView
+                android:id="@+id/share_button_item_post_comment"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginEnd="16dp"
+                android:background="?actionBarItemBackground"
+                android:clickable="true"
+                android:focusable="true"
+                android:src="@drawable/ic_outline_share_20px"
+                android:tint="@android:color/tab_indicator_text"
+                app:layout_constraintEnd_toStartOf="@+id/reply_button_item_post_comment"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintBottom_toBottomOf="parent"/>
+
+            <ImageView
+                android:id="@+id/reply_button_item_post_comment"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginEnd="16dp"
+                android:background="?actionBarItemBackground"
+                android:clickable="true"
+                android:focusable="true"
+                android:src="@drawable/ic_reply_black_20dp"
+                android:tint="@android:color/tab_indicator_text"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintBottom_toBottomOf="parent"/>
+
+        </androidx.constraintlayout.widget.ConstraintLayout>
+
+        <!--<RelativeLayout
             android:id="@+id/relative_layout_item_post_comment"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
@@ -128,7 +233,7 @@
                 android:clickable="true"
                 android:focusable="true"/>
 
-        </RelativeLayout>
+        </RelativeLayout>-->
 
     </LinearLayout>
 

app/src/main/res/menu/edit_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_edit_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/values/strings.xml

@@ -182,7 +182,9 @@
     <string name="login_first">Login first</string>
 
     <string name="delete_this_post">Delete This Post</string>
+    <string name="delete_this_comment">Delete This Comment</string>
     <string name="are_you_sure">Are you sure?</string>
+    <string name="edit">Edit</string>
     <string name="delete">Delete</string>
     <string name="cancel">Cancel</string>
     <string name="delete_post_success">Delete successfully</string>