View user details in ViewUserDetailActivity. Follow or unfollow user is not properly implemented right now. Change users and subscribed_users databases' schemes. Press Profile in navigation drawer to view my reddit info. Press the username in the post to view that account's info.

app/src/main/AndroidManifest.xml

@@ -50,8 +50,8 @@
             android:theme="@style/AppTheme.NoActionBarWithTranslucentStatusBar" />
         <activity
             android:name=".ViewUserDetailActivity"
-            android:label="@string/title_activity_view_user_detail"
+            android:parentActivityName=".MainActivity"
-            android:theme="@style/AppTheme.NoActionBar" />
+            android:theme="@style/AppTheme.NoActionBarWithTranslucentStatusBar" />
     </application>
 
 </manifest>

app/src/main/java/SubredditDatabase/SubredditDao.java

@@ -14,7 +14,7 @@ public interface SubredditDao {
     @Query("DELETE FROM subreddits")
     void deleteAllSubreddits();
 
-    @Query("SELECT * from subreddits WHERE name = :namePrefixed")
+    @Query("SELECT * from subreddits WHERE name = :namePrefixed LIMIT 1")
     LiveData<SubredditData> getSubredditLiveDataByName(String namePrefixed);
 
     @Query("SELECT * from subreddits WHERE name = :namePrefixed LIMIT 1")

app/src/main/java/SubredditDatabase/SubredditRepository.java

@@ -20,14 +20,14 @@ public class SubredditRepository {
     }
 
     public void insert(SubredditData subredditData) {
-        new SubredditRepository.insertAsyncTask(mSubredditDao).execute(subredditData);
+        new InsertAsyncTask(mSubredditDao).execute(subredditData);
     }
 
-    private static class insertAsyncTask extends AsyncTask<SubredditData, Void, Void> {
+    private static class InsertAsyncTask extends AsyncTask<SubredditData, Void, Void> {
 
         private SubredditDao mAsyncTaskDao;
 
-        insertAsyncTask(SubredditDao dao) {
+        InsertAsyncTask(SubredditDao dao) {
             mAsyncTaskDao = dao;
         }
 

app/src/main/java/SubredditDatabase/SubredditViewModel.java

@@ -11,7 +11,7 @@ public class SubredditViewModel extends AndroidViewModel {
     private SubredditRepository mSubredditRepository;
     private LiveData<SubredditData> mSubredditLiveData;
 
-    SubredditViewModel(Application application, String id) {
+    public SubredditViewModel(Application application, String id) {
         super(application);
         mSubredditRepository = new SubredditRepository(application, id);
         mSubredditLiveData = mSubredditRepository.getSubredditLiveData();

app/src/main/java/SubscribedUserDatabase/SubscribedUserDao.java

@@ -16,6 +16,12 @@ public interface SubscribedUserDao {
     @Query("DELETE FROM subscribed_users")
     void deleteAllSubscribedUsers();
 
-    @Query("SELECT * from subscribed_users ORDER BY name COLLATE NOCASE ASC")
+    @Query("SELECT * FROM subscribed_users ORDER BY name COLLATE NOCASE ASC")
     LiveData<List<SubscribedUserData>> getAllSubscribedUsers();
+
+    @Query("SELECT * FROM subscribed_users WHERE name = :userName LIMIT 1")
+    SubscribedUserData getSubscribedUser(String userName);
+
+    @Query("DELETE FROM subscribed_users WHERE name = :userName")
+    void deleteSubscribedUser(String userName);
 }

app/src/main/java/SubscribedUserDatabase/SubscribedUserData.java

@@ -9,24 +9,17 @@ import android.support.annotation.NonNull;
 public class SubscribedUserData {
     @PrimaryKey
     @NonNull
-    @ColumnInfo(name = "id")
-    private String id;
     @ColumnInfo(name = "name")
     private String name;
     @ColumnInfo(name = "icon")
     private String iconUrl;
 
-    public SubscribedUserData(@NonNull String id, String name, String iconUrl) {
+    public SubscribedUserData(@NonNull String name, String iconUrl) {
-        this.id = id;
         this.name = name;
         this.iconUrl = iconUrl;
     }
 
     @NonNull
-    public String getId() {
-        return id;
-    }
-
     public String getName() {
         return name;
     }

app/src/main/java/User/UserDao.java

@@ -1,5 +1,6 @@
 package User;
 
+import android.arch.lifecycle.LiveData;
 import android.arch.persistence.room.Dao;
 import android.arch.persistence.room.Insert;
 import android.arch.persistence.room.OnConflictStrategy;
@@ -8,11 +9,14 @@ import android.arch.persistence.room.Query;
 @Dao
 public interface UserDao {
     @Insert(onConflict = OnConflictStrategy.REPLACE)
-    void insert(User user);
+    void insert(UserData userData);
 
     @Query("DELETE FROM users")
     void deleteAllUsers();
 
-    @Query("SELECT * FROM users WHERE user_name = :userName LIMIT 1")
+    @Query("SELECT * FROM users WHERE name = :userName LIMIT 1")
-    User getUserData(String userName);
+    LiveData<UserData> getUserLiveData(String userName);
+
+    @Query("SELECT * FROM users WHERE name = :userName LIMIT 1")
+    UserData getUserData(String userName);
 }

app/src/main/java/User/UserData.java

@@ -2,17 +2,12 @@ package User;
 
 import android.arch.persistence.room.ColumnInfo;
 import android.arch.persistence.room.Entity;
-import android.arch.persistence.room.PrimaryKey;
 import android.support.annotation.NonNull;
 
+import SubscribedUserDatabase.SubscribedUserData;
+
 @Entity(tableName = "users")
-public class User {
+public class UserData extends SubscribedUserData {
-    @PrimaryKey
-    @NonNull
-    @ColumnInfo(name = "user_name")
-    private String userName;
-    @ColumnInfo(name = "icon")
-    private String icon;
     @ColumnInfo(name = "banner")
     private String banner;
     @ColumnInfo(name = "karma")
@@ -22,24 +17,14 @@ public class User {
     @ColumnInfo(name = "is_friend")
     private boolean isFriend;
 
-    User(@NonNull String userName, String icon, String banner, int karma, boolean isGold, boolean isFriend) {
+    public UserData(@NonNull String name, String iconUrl, String banner, int karma, boolean isGold, boolean isFriend) {
-        this.userName = userName;
+        super(name, iconUrl);
-        this.icon = icon;
         this.banner = banner;
         this.karma = karma;
         this.isGold = isGold;
         this.isFriend = isFriend;
     }
 
-    @NonNull
-    public String getUserName() {
-        return userName;
-    }
-
-    public String getIcon() {
-        return icon;
-    }
-
     public String getBanner() {
         return banner;
     }

app/src/main/java/User/UserRepository.java

@@ -0,0 +1,39 @@
+package User;
+
+import android.app.Application;
+import android.arch.lifecycle.LiveData;
+import android.os.AsyncTask;
+
+public class UserRepository {
+    private UserDao mUserDao;
+    private LiveData<UserData> mUserLiveData;
+
+    UserRepository(Application application, String userName) {
+        mUserDao = UserRoomDatabase.getDatabase(application).userDao();
+
+        mUserLiveData = mUserDao.getUserLiveData(userName);
+    }
+
+    LiveData<UserData> getUserLiveData() {
+        return mUserLiveData;
+    }
+
+    public void insert(UserData userData) {
+        new InsertAsyncTask(mUserDao).execute(userData);
+    }
+
+    private static class InsertAsyncTask extends AsyncTask<UserData, Void, Void> {
+
+        private UserDao mAsyncTaskDao;
+
+        InsertAsyncTask(UserDao dao) {
+            mAsyncTaskDao = dao;
+        }
+
+        @Override
+        protected Void doInBackground(final UserData... params) {
+            mAsyncTaskDao.insert(params[0]);
+            return null;
+        }
+    }
+}

app/src/main/java/User/UserRoomDatabase.java

@@ -5,7 +5,7 @@ import android.arch.persistence.room.Room;
 import android.arch.persistence.room.RoomDatabase;
 import android.content.Context;
 
-@Database(entities = {User.class}, version = 1)
+@Database(entities = {UserData.class}, version = 1)
 public abstract class UserRoomDatabase extends RoomDatabase {
     private static UserRoomDatabase INSTANCE;
 

app/src/main/java/User/UserViewModel.java

@@ -0,0 +1,48 @@
+package User;
+
+import android.app.Application;
+import android.arch.lifecycle.AndroidViewModel;
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.ViewModel;
+import android.arch.lifecycle.ViewModelProvider;
+import android.support.annotation.NonNull;
+
+import SubredditDatabase.SubredditViewModel;
+
+public class UserViewModel extends AndroidViewModel {
+    private UserRepository mSubredditRepository;
+    private LiveData<UserData> mUserLiveData;
+
+    public UserViewModel(Application application, String id) {
+        super(application);
+        mSubredditRepository = new UserRepository(application, id);
+        mUserLiveData = mSubredditRepository.getUserLiveData();
+    }
+
+    public LiveData<UserData> getUserLiveData() {
+        return mUserLiveData;
+    }
+
+    public void insert(UserData userData) {
+        mSubredditRepository.insert(userData);
+    }
+
+    public static class Factory extends ViewModelProvider.NewInstanceFactory {
+
+        @NonNull
+        private final Application mApplication;
+
+        private final String userName;
+
+        public Factory(@NonNull Application application, String userName) {
+            mApplication = application;
+            this.userName = userName;
+        }
+
+        @Override
+        public <T extends ViewModel> T create(Class<T> modelClass) {
+            //noinspection unchecked
+            return (T) new UserViewModel(mApplication, userName);
+        }
+    }
+}

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

@@ -1,16 +1,16 @@
-package User;
+package ml.docilealligator.infinityforreddit;
 
 import android.support.annotation.NonNull;
 import android.util.Log;
 
-import ml.docilealligator.infinityforreddit.RedditAPI;
+import User.UserData;
 import retrofit2.Call;
 import retrofit2.Callback;
 import retrofit2.Retrofit;
 
 public class FetchUserData {
     public interface FetchUserDataListener {
-        void onFetchUserDataSuccess(User user);
+        void onFetchUserDataSuccess(UserData userData);
         void onFetchUserDataFail();
     }
 
@@ -23,10 +23,10 @@ public class FetchUserData {
             @Override
             public void onResponse(@NonNull Call<String> call, @NonNull retrofit2.Response<String> response) {
                 if(response.isSuccessful()) {
-                    ParseUserData.parseMyInfo(response.body(), new ParseUserData.ParseUserDataListener() {
+                    ParseUserData.parseUserData(response.body(), new ParseUserData.ParseUserDataListener() {
                         @Override
-                        public void onParseUserDataSuccess(User user) {
+                        public void onParseUserDataSuccess(UserData userData) {
-                            fetchUserDataListener.onFetchUserDataSuccess(user);
+                            fetchUserDataListener.onFetchUserDataSuccess(userData);
                         }
 
                         @Override

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

@@ -2,27 +2,27 @@ package ml.docilealligator.infinityforreddit;
 
 import android.os.AsyncTask;
 
-import User.User;
+import User.UserData;
 import User.UserDao;
 
 public class InsertUserDataAsyncTask extends AsyncTask<Void, Void, Void> {
     private UserDao userDao;
-    private User user;
+    private UserData userData;
     private InsertUserDataCallback insertUserDataCallback;
 
     public interface InsertUserDataCallback {
         void insertSuccess();
     }
 
-    public InsertUserDataAsyncTask(UserDao userDao, User user, InsertUserDataCallback insertUserDataCallback) {
+    public InsertUserDataAsyncTask(UserDao userDao, UserData userData, InsertUserDataCallback insertUserDataCallback) {
         this.userDao = userDao;
-        this.user = user;
+        this.userData = userData;
         this.insertUserDataCallback = insertUserDataCallback;
     }
 
     @Override
     protected Void doInBackground(Void... voids) {
-        userDao.insert(user);
+        userDao.insert(userData);
         return null;
     }
 

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

@@ -2,8 +2,7 @@ package ml.docilealligator.infinityforreddit;
 
 import android.os.AsyncTask;
 
-import User.FetchUserData;
+import User.UserData;
-import User.User;
 import User.UserDao;
 import retrofit2.Retrofit;
 
@@ -29,7 +28,7 @@ public class LoadUserDataAsyncTask extends AsyncTask<Void, Void, Void> {
     @Override
     protected Void doInBackground(Void... voids) {
         if(userDao.getUserData(userName) != null) {
-            iconImageUrl = userDao.getUserData(userName).getIcon();
+            iconImageUrl = userDao.getUserData(userName).getIconUrl();
             hasUserInDb = true;
         } else {
             hasUserInDb = false;
@@ -45,13 +44,8 @@ public class LoadUserDataAsyncTask extends AsyncTask<Void, Void, Void> {
         } else {
             FetchUserData.fetchUserData(retrofit, userName, new FetchUserData.FetchUserDataListener() {
                 @Override
-                public void onFetchUserDataSuccess(User user) {
+                public void onFetchUserDataSuccess(UserData userData) {
-                    new InsertUserDataAsyncTask(userDao, user, new InsertUserDataAsyncTask.InsertUserDataCallback() {
+                    new InsertUserDataAsyncTask(userDao, userData, () -> loadUserDataAsyncTaskListener.loadUserDataSuccess(userData.getIconUrl())).execute();
-                        @Override
-                        public void insertSuccess() {
-                            loadUserDataAsyncTaskListener.loadUserDataSuccess(user.getIcon());
-                        }
-                    }).execute();
                 }
 
                 @Override

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

@@ -20,6 +20,7 @@ import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.ImageView;
+import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import com.bumptech.glide.Glide;
@@ -61,6 +62,7 @@ public class MainActivity extends AppCompatActivity {
     @BindView(R.id.subscriptions_label_main_activity) TextView subscriptionsLabelTextView;
     @BindView(R.id.subscribed_user_recycler_view_main_activity) RecyclerView subscribedUserRecyclerView;
     @BindView(R.id.following_label_main_activity) TextView followingLabelTextView;
+    @BindView(R.id.profile_linear_layout_main_activity) LinearLayout profileLinearLayout;
 
     private TextView mNameTextView;
     private TextView mKarmaTextView;
@@ -153,13 +155,14 @@ public class MainActivity extends AppCompatActivity {
                 glide.load(mBannerImageUrl).into(mBannerImageView);
             }
 
-            final SubscribedSubredditRecyclerViewAdapter subredditadapter = new SubscribedSubredditRecyclerViewAdapter(this,
+            profileLinearLayout.setOnClickListener(view -> {
-                    new SubscribedSubredditRecyclerViewAdapter.OnItemClickListener() {
+                Intent intent = new Intent(MainActivity.this, ViewUserDetailActivity.class);
-                        @Override
+                intent.putExtra(ViewUserDetailActivity.EXTRA_USER_NAME_KEY, mName);
-                        public void onClick() {
+                startActivity(intent);
-                            drawer.closeDrawers();
+            });
-                        }
+
-                    });
+            final SubscribedSubredditRecyclerViewAdapter subredditadapter =
+                    new SubscribedSubredditRecyclerViewAdapter(this, drawer::closeDrawers);
             subscribedSubredditRecyclerView.setAdapter(subredditadapter);
 
             mSubscribedSubredditViewModel = ViewModelProviders.of(this).get(SubscribedSubredditViewModel.class);
@@ -176,13 +179,8 @@ public class MainActivity extends AppCompatActivity {
                 }
             });
 
-            final SubscribedUserRecyclerViewAdapter userAdapter = new SubscribedUserRecyclerViewAdapter(this,
+            final SubscribedUserRecyclerViewAdapter userAdapter =
-                    new SubscribedUserRecyclerViewAdapter.OnItemClickListener() {
+                    new SubscribedUserRecyclerViewAdapter(this, drawer::closeDrawers);
-                        @Override
-                        public void onClick() {
-                            drawer.closeDrawers();
-                        }
-                    });
             subscribedUserRecyclerView.setAdapter(userAdapter);
             mSubscribedUserViewModel = ViewModelProviders.of(this).get(SubscribedUserViewModel.class);
             mSubscribedUserViewModel.getAllSubscribedUsers().observe(this, new Observer<List<SubscribedUserData>>() {

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

@@ -11,4 +11,5 @@ interface NetworkComponent {
     void inject(PostFragment postFragment);
     void inject(ViewPostDetailActivity viewPostDetailActivity);
     void inject(ViewSubredditDetailActivity viewSubredditDetailActivity);
+    void inject(ViewUserDetailActivity viewUserDetailActivity);
 }

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

@@ -94,7 +94,7 @@ class ParseSubscribedThing {
                     if(data.getString(JSONUtils.SUBREDDIT_TYPE_KEY)
                             .equals(JSONUtils.SUBREDDIT_TYPE_VALUE_USER)) {
                         //It's a user
-                        newSubscribedUserData.add(new SubscribedUserData(id, name.substring(2), iconUrl));
+                        newSubscribedUserData.add(new SubscribedUserData(name.substring(2), iconUrl));
                     } else {
                         String subredditFullName = data.getString(JSONUtils.DISPLAY_NAME);
                         String description = data.getString(JSONUtils.PUBLIC_DESCRIPTION_KEY).trim();

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

@@ -1,4 +1,4 @@
-package User;
+package ml.docilealligator.infinityforreddit;
 
 import android.os.AsyncTask;
 import android.util.Log;
@@ -6,15 +6,15 @@ import android.util.Log;
 import org.json.JSONException;
 import org.json.JSONObject;
 
-import ml.docilealligator.infinityforreddit.JSONUtils;
+import User.UserData;
 
 public class ParseUserData {
     interface ParseUserDataListener {
-        void onParseUserDataSuccess(User user);
+        void onParseUserDataSuccess(UserData userData);
         void onParseUserDataFail();
     }
 
-    static void parseMyInfo(String response, ParseUserDataListener parseUserDataListener) {
+    static void parseUserData(String response, ParseUserDataListener parseUserDataListener) {
         new ParseUserDataAsyncTask(response, parseUserDataListener).execute();
     }
 
@@ -23,15 +23,16 @@ public class ParseUserData {
         private ParseUserDataListener parseUserDataListener;
         private boolean parseFailed;
 
-        private User user;
+        private UserData userData;
 
         ParseUserDataAsyncTask(String response, ParseUserDataListener parseUserDataListener){
             try {
+                Log.i("response", response);
                 jsonResponse = new JSONObject(response);
                 this.parseUserDataListener = parseUserDataListener;
                 parseFailed = false;
             } catch (JSONException e) {
-                Log.i("user data json error", e.getMessage());
+                Log.i("userdata json error", e.getMessage());
                 parseUserDataListener.onParseUserDataFail();
             }
         }
@@ -43,7 +44,7 @@ public class ParseUserData {
                 String userName = jsonResponse.getString(JSONUtils.NAME_KEY);
                 String iconImageUrl = jsonResponse.getString(JSONUtils.ICON_IMG_KEY);
                 String bannerImageUrl = "";
-                if(!jsonResponse.isNull(JSONUtils.SUBREDDIT_KEY)) {
+                if(jsonResponse.has(JSONUtils.SUBREDDIT_KEY) && !jsonResponse.isNull(JSONUtils.SUBREDDIT_KEY)) {
                     bannerImageUrl = jsonResponse.getJSONObject(JSONUtils.SUBREDDIT_KEY).getString(JSONUtils.BANNER_IMG_KEY);
                 }
                 int linkKarma = jsonResponse.getInt(JSONUtils.LINK_KARMA_KEY);
@@ -52,7 +53,7 @@ public class ParseUserData {
                 boolean isGold = jsonResponse.getBoolean(JSONUtils.IS_GOLD_KEY);
                 boolean isFriend = jsonResponse.getBoolean(JSONUtils.IS_FRIEND_KEY);
 
-                user = new User(userName, iconImageUrl, bannerImageUrl, karma, isGold, isFriend);
+                userData = new UserData(userName, iconImageUrl, bannerImageUrl, karma, isGold, isFriend);
             } catch (JSONException e) {
                 parseFailed = true;
                 Log.i("parse user data error", e.getMessage());
@@ -63,7 +64,7 @@ public class ParseUserData {
         @Override
         protected void onPostExecute(Void aVoid) {
             if(!parseFailed) {
-                parseUserDataListener.onParseUserDataSuccess(user);
+                parseUserDataListener.onParseUserDataSuccess(userData);
             } else {
                 parseUserDataListener.onParseUserDataFail();
             }

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

@@ -300,6 +300,7 @@ class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView.ViewHo
                         if(canStartActivity) {
                             canStartActivity = false;
                             Intent intent = new Intent(mContext, ViewUserDetailActivity.class);
+                            intent.putExtra(ViewUserDetailActivity.EXTRA_USER_NAME_KEY, post.getAuthor());
                             mContext.startActivity(intent);
                         }
                     });
@@ -310,6 +311,7 @@ class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView.ViewHo
                         if(canStartActivity) {
                             canStartActivity = false;
                             Intent intent = new Intent(mContext, ViewUserDetailActivity.class);
+                            intent.putExtra(ViewUserDetailActivity.EXTRA_USER_NAME_KEY, post.getAuthor());
                             mContext.startActivity(intent);
                         }
                     });

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

@@ -3,11 +3,13 @@ package ml.docilealligator.infinityforreddit;
 import java.util.Map;
 
 import retrofit2.Call;
+import retrofit2.http.DELETE;
 import retrofit2.http.FieldMap;
 import retrofit2.http.FormUrlEncoded;
 import retrofit2.http.GET;
 import retrofit2.http.HeaderMap;
 import retrofit2.http.POST;
+import retrofit2.http.PUT;
 import retrofit2.http.Path;
 import retrofit2.http.Query;
 
@@ -45,4 +47,10 @@ public interface RedditAPI {
     @FormUrlEncoded
     @POST("api/subscribe")
     Call<String> subredditSubscription(@HeaderMap Map<String, String> headers, @FieldMap Map<String, String> params);
+
+    @PUT("/api/v1/me/friends/username")
+    Call<String> subscribeUser(@HeaderMap Map<String, String> headers);
+
+    @DELETE("/api/v1/me/friends/username")
+    Call<String> unsubscribeUser(@HeaderMap Map<String, String> headers);
 }

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

@@ -30,7 +30,7 @@ public class RedditUtils {
 
     static final String AUTHORIZATION_KEY = "Authorization";
     static final String AUTHORIZATION_BASE = "bearer ";
-    static final String USER_AGENT_KEY = "User-Agent";
+    static final String USER_AGENT_KEY = "UserData-Agent";
     static final String USER_AGENT = "";
 
     static final String GRANT_TYPE_KEY = "grant_type";
@@ -47,6 +47,7 @@ public class RedditUtils {
 
     static final String ACTION_KEY = "action";
     static final String SR_NAME_KEY = "sr_name";
+    static final String SR_KEY = "sr";
 
     static Map<String, String> getHttpBasicAuthHeader() {
         Map<String, String> params = new HashMap<>();

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

@@ -1,6 +1,7 @@
 package ml.docilealligator.infinityforreddit;
 
 import android.content.Context;
+import android.content.Intent;
 import android.graphics.drawable.Animatable;
 import android.graphics.drawable.Drawable;
 import android.support.annotation.NonNull;
@@ -27,6 +28,7 @@ import jp.wasabeef.glide.transformations.RoundedCornersTransformation;
 
 public class SubscribedUserRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
     private List<SubscribedUserData> mSubscribedUserData;
+    private Context mContext;
     private RequestManager glide;
     private OnItemClickListener mOnItemClickListener;
 
@@ -35,6 +37,7 @@ public class SubscribedUserRecyclerViewAdapter extends RecyclerView.Adapter<Recy
     }
 
     SubscribedUserRecyclerViewAdapter(Context context, OnItemClickListener onItemClickListener) {
+        mContext = context;
         glide = Glide.with(context.getApplicationContext());
         mOnItemClickListener = onItemClickListener;
     }
@@ -47,13 +50,11 @@ public class SubscribedUserRecyclerViewAdapter extends RecyclerView.Adapter<Recy
 
     @Override
     public void onBindViewHolder(@NonNull final RecyclerView.ViewHolder viewHolder, int i) {
-        viewHolder.itemView.setOnClickListener(new View.OnClickListener() {
+        viewHolder.itemView.setOnClickListener(view -> {
-            @Override
+            Intent intent = new Intent(mContext, ViewUserDetailActivity.class);
-            public void onClick(View view) {
+            intent.putExtra(ViewUserDetailActivity.EXTRA_USER_NAME_KEY, mSubscribedUserData.get(viewHolder.getAdapterPosition()).getName());
-                //Need to be implemented
+            mContext.startActivity(intent);
-
+            mOnItemClickListener.onClick();
-                mOnItemClickListener.onClick();
-            }
         });
         if(!mSubscribedUserData.get(i).getIconUrl().equals("")) {
             glide.load(mSubscribedUserData.get(i).getIconUrl())

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

@@ -0,0 +1,117 @@
+package ml.docilealligator.infinityforreddit;
+
+import android.content.SharedPreferences;
+import android.os.AsyncTask;
+import android.support.annotation.NonNull;
+import android.util.Log;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import SubscribedUserDatabase.SubscribedUserDao;
+import SubscribedUserDatabase.SubscribedUserData;
+import User.UserData;
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Retrofit;
+
+class UserFollowing {
+    interface UserFollowingListener {
+        void onUserFollowingSuccess();
+        void onUserFollowingFail();
+    }
+
+    static void followUser(Retrofit oauthRetrofit, Retrofit retrofit,
+                           SharedPreferences authInfoSharedPreferences, String userName,
+                           SubscribedUserDao subscribedUserDao,
+                           UserFollowingListener userFollowingListener) {
+        userFollowing(oauthRetrofit, retrofit, authInfoSharedPreferences, userName, "sub",
+                subscribedUserDao, userFollowingListener);
+    }
+
+    static void unfollowUser(Retrofit oauthRetrofit, Retrofit retrofit,
+                             SharedPreferences authInfoSharedPreferences, String userName,
+                             SubscribedUserDao subscribedUserDao,
+                             UserFollowingListener userFollowingListener) {
+        userFollowing(oauthRetrofit, retrofit, authInfoSharedPreferences, userName, "unsub",
+                subscribedUserDao, userFollowingListener);
+    }
+
+    private static void userFollowing(Retrofit oauthRetrofit, Retrofit retrofit, SharedPreferences authInfoSharedPreferences,
+                                      String userName, String action, SubscribedUserDao subscribedUserDao,
+                                      UserFollowingListener userFollowingListener) {
+        RedditAPI api = oauthRetrofit.create(RedditAPI.class);
+
+        String accessToken = authInfoSharedPreferences.getString(SharedPreferencesUtils.ACCESS_TOKEN_KEY, "");
+
+        Map<String, String> params = new HashMap<>();
+        params.put(RedditUtils.ACTION_KEY, action);
+        params.put(RedditUtils.SR_KEY, "u/" + userName);
+
+        Call<String> subredditSubscriptionCall = api.subredditSubscription(RedditUtils.getOAuthHeader(accessToken), params);
+        subredditSubscriptionCall.enqueue(new Callback<String>() {
+            @Override
+            public void onResponse(@NonNull Call<String> call, @NonNull retrofit2.Response<String> response) {
+                if(response.isSuccessful()) {
+                    if(action.equals("sub")) {
+                        FetchUserData.fetchUserData(retrofit, userName, new FetchUserData.FetchUserDataListener() {
+                            @Override
+                            public void onFetchUserDataSuccess(UserData userData) {
+                                new UpdateSubscriptionAsyncTask(subscribedUserDao, userData, true).execute();
+                            }
+
+                            @Override
+                            public void onFetchUserDataFail() {
+
+                            }
+                        });
+                    } else {
+                        new UpdateSubscriptionAsyncTask(subscribedUserDao, userName, false).execute();
+                    }
+                    userFollowingListener.onUserFollowingSuccess();
+                } else {
+                    Log.i("call failed", response.message());
+                    userFollowingListener.onUserFollowingFail();
+                }
+            }
+
+            @Override
+            public void onFailure(@NonNull Call<String> call, @NonNull Throwable t) {
+                Log.i("call failed", t.getMessage());
+                userFollowingListener.onUserFollowingFail();
+            }
+        });
+    }
+
+    private static class UpdateSubscriptionAsyncTask extends AsyncTask<Void, Void, Void> {
+
+        private SubscribedUserDao subscribedUserDao;
+        private String userName;
+        private SubscribedUserData subscribedUserData;
+        private boolean isSubscribing;
+
+        UpdateSubscriptionAsyncTask(SubscribedUserDao subscribedUserDao, String userName,
+                                    boolean isSubscribing) {
+            this.subscribedUserDao = subscribedUserDao;
+            this.userName = userName;
+            this.isSubscribing = isSubscribing;
+        }
+
+        UpdateSubscriptionAsyncTask(SubscribedUserDao subscribedUserDao, SubscribedUserData subscribedUserData,
+                                    boolean isSubscribing) {
+            this.subscribedUserDao = subscribedUserDao;
+            this.subscribedUserData = subscribedUserData;
+            this.isSubscribing = isSubscribing;
+        }
+
+        @Override
+        protected Void doInBackground(Void... voids) {
+            if(isSubscribing) {
+                subscribedUserDao.insert(subscribedUserData);
+            } else {
+                subscribedUserDao.deleteSubscribedUser(userName);;
+            }
+            return null;
+        }
+    }
+}

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

@@ -22,7 +22,6 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
-import android.widget.Toast;
 
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.RequestManager;
@@ -104,11 +103,11 @@ public class ViewSubredditDetailActivity extends AppCompatActivity {
         ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) toolbar.getLayoutParams();
         params.topMargin = statusBarHeight;
 
-        final String subredditName = getIntent().getExtras().getString(EXTRA_SUBREDDIT_NAME_KEY);
+        String subredditName = getIntent().getExtras().getString(EXTRA_SUBREDDIT_NAME_KEY);
 
-        final String title = "r/" + subredditName;
+        String title = "r/" + subredditName;
-        final CollapsingToolbarLayout collapsingToolbarLayout = findViewById(R.id.collapsing_toolbar_layout_view_subreddit_detail_activity);
+        CollapsingToolbarLayout collapsingToolbarLayout = findViewById(R.id.collapsing_toolbar_layout_view_subreddit_detail_activity);
-        final AppBarLayout appBarLayout = findViewById(R.id.app_bar_layout_view_subreddit_detail_activity);
+        AppBarLayout appBarLayout = findViewById(R.id.app_bar_layout_view_subreddit_detail_activity);
 
         appBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
             int previousVerticalOffset = 0;
@@ -136,10 +135,10 @@ public class ViewSubredditDetailActivity extends AppCompatActivity {
         });
 
         subscribedSubredditDao = SubscribedSubredditRoomDatabase.getDatabase(this).subscribedSubredditDao();
-        glide = Glide.with(ViewSubredditDetailActivity.this);
+        glide = Glide.with(this);
 
-        SubredditViewModel.Factory factory = new SubredditViewModel.Factory(getApplication(), subredditName);
+        mSubredditViewModel = ViewModelProviders.of(this, new SubredditViewModel.Factory(getApplication(), subredditName))
-        mSubredditViewModel = ViewModelProviders.of(this, factory).get(SubredditViewModel.class);
+                .get(SubredditViewModel.class);
         mSubredditViewModel.getSubredditLiveData().observe(this, subredditData -> {
             if(subredditData != null) {
                 if(subredditData.getBannerUrl().equals("")) {
@@ -279,7 +278,7 @@ public class ViewSubredditDetailActivity extends AppCompatActivity {
 
                     @Override
                     public void onParseSubredditDataFail() {
-                        Toast.makeText(ViewSubredditDetailActivity.this, "Cannot fetch subreddit info", Toast.LENGTH_SHORT).show();
+                        makeSnackbar(R.string.cannot_fetch_subreddit_info);
                     }
                 });
             }

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

@@ -1,13 +1,78 @@
 package ml.docilealligator.infinityforreddit;
 
+import android.arch.lifecycle.ViewModelProviders;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.graphics.drawable.Animatable;
+import android.graphics.drawable.Drawable;
+import android.os.AsyncTask;
 import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.design.chip.Chip;
+import android.support.design.widget.AppBarLayout;
+import android.support.design.widget.CollapsingToolbarLayout;
+import android.support.design.widget.CoordinatorLayout;
+import android.support.design.widget.Snackbar;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
+import android.view.MenuItem;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.bumptech.glide.Glide;
+import com.bumptech.glide.RequestManager;
+import com.bumptech.glide.load.DataSource;
+import com.bumptech.glide.load.engine.GlideException;
+import com.bumptech.glide.request.RequestListener;
+import com.bumptech.glide.request.RequestOptions;
+import com.bumptech.glide.request.target.Target;
+import com.felipecsl.gifimageview.library.GifImageView;
+
+import javax.inject.Inject;
+import javax.inject.Named;
+
+import SubscribedUserDatabase.SubscribedUserDao;
+import SubscribedUserDatabase.SubscribedUserData;
+import SubscribedUserDatabase.SubscribedUserRoomDatabase;
+import User.UserDao;
+import User.UserData;
+import User.UserRoomDatabase;
+import User.UserViewModel;
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import jp.wasabeef.glide.transformations.RoundedCornersTransformation;
+import retrofit2.Retrofit;
 
 public class ViewUserDetailActivity extends AppCompatActivity {
 
     static final String EXTRA_USER_NAME_KEY = "EUNK";
 
+    @BindView(R.id.coordinator_layout_view_user_detail_activity) CoordinatorLayout coordinatorLayout;
+    @BindView(R.id.banner_image_view_view_user_detail_activity) ImageView bannerImageView;
+    @BindView(R.id.icon_gif_image_view_view_user_detail_activity) GifImageView iconGifImageView;
+    @BindView(R.id.user_name_text_view_view_user_detail_activity) TextView userNameTextView;
+    @BindView(R.id.subscribe_user_chip_view_user_detail_activity) Chip subscribeUserChip;
+    @BindView(R.id.karma_text_view_view_user_detail_activity) TextView karmaTextView;
+
+    private SubscribedUserDao subscribedUserDao;
+    private RequestManager glide;
+    private UserViewModel userViewModel;
+
+    private boolean subscriptionReady = false;
+
+    @Inject
+    @Named("no_oauth")
+    Retrofit mRetrofit;
+
+    @Inject
+    @Named("oauth")
+    Retrofit mOauthRetrofit;
+
+    @Inject
+    @Named("auth_info")
+    SharedPreferences sharedPreferences;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -15,6 +80,254 @@ public class ViewUserDetailActivity extends AppCompatActivity {
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
 
-        
+        ButterKnife.bind(this);
+
+        ((Infinity) getApplication()).getmNetworkComponent().inject(this);
+
+        setSupportActionBar(toolbar);
+
+        //Get status bar height
+        int statusBarHeight = 0;
+        int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
+        if (resourceId > 0) {
+            statusBarHeight = getResources().getDimensionPixelSize(resourceId);
+        }
+
+        ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) toolbar.getLayoutParams();
+        params.topMargin = statusBarHeight;
+
+        String userName = getIntent().getExtras().getString(EXTRA_USER_NAME_KEY);
+        String title = "u/" + userName;
+
+        CollapsingToolbarLayout collapsingToolbarLayout = findViewById(R.id.collapsing_toolbar_layout_view_user_detail_activity);
+        AppBarLayout appBarLayout = findViewById(R.id.app_bar_layout_view_user_detail_activity);
+
+        appBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
+            int previousVerticalOffset = 0;
+            int scrollRange = -1;
+
+            @Override
+            public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
+                if(scrollRange == -1) {
+                    scrollRange = appBarLayout.getTotalScrollRange();
+                } else {
+                    if(verticalOffset < previousVerticalOffset) {
+                        //Scroll down
+                        if(scrollRange - Math.abs(verticalOffset) <= toolbar.getHeight()) {
+                            collapsingToolbarLayout.setTitle(title);
+                        }
+                    } else {
+                        //Scroll up
+                        if(scrollRange - Math.abs(verticalOffset) > toolbar.getHeight()) {
+                            collapsingToolbarLayout.setTitle(" ");//carefull there should a space between double quote otherwise it wont work
+                        }
+                    }
+                    previousVerticalOffset = verticalOffset;
+                }
+            }
+        });
+
+        subscribeUserChip.setOnClickListener(view -> {
+            if(subscriptionReady) {
+                subscriptionReady = false;
+                if(subscribeUserChip.getText().equals(getResources().getString(R.string.subscribe))) {
+                    UserFollowing.followUser(mOauthRetrofit, mRetrofit, sharedPreferences,
+                            userName, subscribedUserDao, new UserFollowing.UserFollowingListener() {
+                                @Override
+                                public void onUserFollowingSuccess() {
+                                    subscribeUserChip.setText(R.string.unfollow);
+                                    subscribeUserChip.setChipBackgroundColor(getResources().getColorStateList(R.color.colorAccent));
+                                    makeSnackbar(R.string.followed);
+                                    subscriptionReady = true;
+                                }
+
+                                @Override
+                                public void onUserFollowingFail() {
+                                    makeSnackbar(R.string.follow_failed);
+                                    subscriptionReady = true;
+                                }
+                            });
+                } else {
+                    UserFollowing.unfollowUser(mOauthRetrofit, mRetrofit, sharedPreferences,
+                            userName, subscribedUserDao, new UserFollowing.UserFollowingListener() {
+                                @Override
+                                public void onUserFollowingSuccess() {
+                                    subscribeUserChip.setText(R.string.follow);
+                                    subscribeUserChip.setChipBackgroundColor(getResources().getColorStateList(R.color.colorPrimaryDark));
+                                    makeSnackbar(R.string.unfollowed);
+                                    subscriptionReady = true;
+                                }
+
+                                @Override
+                                public void onUserFollowingFail() {
+                                    makeSnackbar(R.string.unfollow_failed);
+                                    subscriptionReady = true;
+                                }
+                            });
+                }
+            }
+        });
+
+        subscribedUserDao = SubscribedUserRoomDatabase.getDatabase(this).subscribedUserDao();
+
+        new CheckIsFollowingUserAsyncTask(subscribedUserDao, userName, new CheckIsFollowingUserAsyncTask.CheckIsFollowingUserListener() {
+            @Override
+            public void isSubscribed() {
+                subscribeUserChip.setText(R.string.unfollow);
+                subscribeUserChip.setChipBackgroundColor(getResources().getColorStateList(R.color.colorAccent));
+                subscriptionReady = true;
+            }
+
+            @Override
+            public void isNotSubscribed() {
+                subscribeUserChip.setText(R.string.follow);
+                subscribeUserChip.setChipBackgroundColor(getResources().getColorStateList(R.color.colorPrimaryDark));
+                subscriptionReady = true;
+            }
+        }).execute();
+
+        glide = Glide.with(this);
+
+        userViewModel = ViewModelProviders.of(this, new UserViewModel.Factory(getApplication(), userName))
+                .get(UserViewModel.class);
+        userViewModel.getUserLiveData().observe(this, userData -> {
+            if(userData != null) {
+                if(userData.getBanner().equals("")) {
+                    bannerImageView.setOnClickListener(view -> {
+                        //Do nothing since the user has no banner image
+                    });
+                } else {
+                    glide.load(userData.getBanner()).into(bannerImageView);
+                    bannerImageView.setOnClickListener(view -> {
+                        Intent intent = new Intent(this, ViewImageActivity.class);
+                        intent.putExtra(ViewImageActivity.TITLE_KEY, title);
+                        intent.putExtra(ViewImageActivity.IMAGE_URL_KEY, userData.getBanner());
+                        intent.putExtra(ViewImageActivity.FILE_NAME_KEY, userName + "-banner");
+                        startActivity(intent);
+                    });
+                }
+
+                if(userData.getIconUrl().equals("")) {
+                    glide.load(getDrawable(R.drawable.subreddit_default_icon))
+                            .apply(RequestOptions.bitmapTransform(new RoundedCornersTransformation(216, 0)))
+                            .into(iconGifImageView);
+                    iconGifImageView.setOnClickListener(view -> {
+                        //Do nothing since the user has no icon image
+                    });
+                } else {
+                    glide.load(userData.getIconUrl())
+                            .apply(RequestOptions.bitmapTransform(new RoundedCornersTransformation(216, 0)))
+                            .error(glide.load(R.drawable.subreddit_default_icon))
+                            .listener(new RequestListener<Drawable>() {
+                                @Override
+                                public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
+                                    return false;
+                                }
+
+                                @Override
+                                public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
+                                    if(resource instanceof Animatable) {
+                                        //This is a gif
+                                        ((Animatable) resource).start();
+                                        iconGifImageView.startAnimation();
+                                    }
+                                    return false;
+                                }
+                            })
+                            .into(iconGifImageView);
+                    iconGifImageView.setOnClickListener(view -> {
+                        Intent intent = new Intent(this, ViewImageActivity.class);
+                        intent.putExtra(ViewImageActivity.TITLE_KEY, title);
+                        intent.putExtra(ViewImageActivity.IMAGE_URL_KEY, userData.getIconUrl());
+                        intent.putExtra(ViewImageActivity.FILE_NAME_KEY, userName + "-icon");
+                        startActivity(intent);
+                    });
+                }
+
+                String userFullName = "u/" + userData.getName();
+                userNameTextView.setText(userFullName);
+                String karma = getString(R.string.karma_info, userData.getKarma());
+                karmaTextView.setText(karma);
+            }
+        });
+
+        FetchUserData.fetchUserData(mRetrofit, userName, new FetchUserData.FetchUserDataListener() {
+            @Override
+            public void onFetchUserDataSuccess(UserData userData) {
+                new InsertUserDataAsyncTask(UserRoomDatabase.getDatabase(ViewUserDetailActivity.this).userDao(), userData).execute();
+            }
+
+            @Override
+            public void onFetchUserDataFail() {
+                makeSnackbar(R.string.cannot_fetch_user_info);
+            }
+        });
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                finish();
+                return true;
+        }
+        return false;
+    }
+
+    private void makeSnackbar(int resId) {
+        Snackbar.make(coordinatorLayout, resId, Snackbar.LENGTH_SHORT).show();
+    }
+
+    private static class InsertUserDataAsyncTask extends AsyncTask<Void, Void, Void> {
+
+        private UserDao userDao;
+        private UserData subredditData;
+
+        InsertUserDataAsyncTask(UserDao userDao, UserData userData) {
+            this.userDao = userDao;
+            this.subredditData = userData;
+        }
+
+        @Override
+        protected Void doInBackground(final Void... params) {
+            userDao.insert(subredditData);
+            return null;
+        }
+    }
+
+    private static class CheckIsFollowingUserAsyncTask extends AsyncTask<Void, Void, Void> {
+
+        private SubscribedUserDao subscribedUserDao;
+        private String userName;
+        private SubscribedUserData subscribedUserData;
+        private CheckIsFollowingUserListener checkIsFollowingUserListener;
+
+        interface CheckIsFollowingUserListener {
+            void isSubscribed();
+            void isNotSubscribed();
+        }
+
+        CheckIsFollowingUserAsyncTask(SubscribedUserDao subscribedUserDao, String userName,
+                                      CheckIsFollowingUserListener checkIsFollowingUserListener) {
+            this.subscribedUserDao = subscribedUserDao;
+            this.userName = userName;
+            this.checkIsFollowingUserListener = checkIsFollowingUserListener;
+        }
+
+        @Override
+        protected Void doInBackground(Void... voids) {
+            subscribedUserData = subscribedUserDao.getSubscribedUser(userName);
+            return null;
+        }
+
+        @Override
+        protected void onPostExecute(Void aVoid) {
+            super.onPostExecute(aVoid);
+            if(subscribedUserData != null) {
+                checkIsFollowingUserListener.isSubscribed();
+            } else {
+                checkIsFollowingUserListener.isNotSubscribed();
+            }
+        }
     }
 }

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

@@ -35,6 +35,7 @@
                         layout="@layout/nav_header_main" />
 
                     <LinearLayout
+                        android:id="@+id/profile_linear_layout_main_activity"
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
                         android:padding="16dp"

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

@@ -4,33 +4,97 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:fitsSystemWindows="true"
+    android:id="@+id/coordinator_layout_view_user_detail_activity"
     tools:context=".ViewUserDetailActivity">
 
     <android.support.design.widget.AppBarLayout
-        android:id="@+id/app_bar"
+        android:id="@+id/app_bar_layout_view_user_detail_activity"
         android:layout_width="match_parent"
-        android:layout_height="@dimen/app_bar_height"
+        android:layout_height="wrap_content"
-        android:fitsSystemWindows="true"
         android:theme="@style/AppTheme.AppBarOverlay">
 
         <android.support.design.widget.CollapsingToolbarLayout
-            android:id="@+id/toolbar_layout"
+            android:id="@+id/collapsing_toolbar_layout_view_user_detail_activity"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:fitsSystemWindows="true"
             app:contentScrim="?attr/colorPrimary"
-            app:layout_scrollFlags="scroll|exitUntilCollapsed"
+            app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed"
             app:toolbarId="@+id/toolbar">
 
+            <RelativeLayout
+                android:layout_width="match_parent"
+                android:layout_height="match_parent">
+
+                <ImageView
+                    android:id="@+id/banner_image_view_view_user_detail_activity"
+                    android:layout_width="match_parent"
+                    android:scaleType="centerCrop"
+                    android:layout_height="180dp"
+                    android:contentDescription="@string/content_description_banner_imageview" />
+
+                <com.felipecsl.gifimageview.library.GifImageView
+                    android:id="@+id/icon_gif_image_view_view_user_detail_activity"
+                    android:layout_width="72dp"
+                    android:layout_height="72dp"
+                    android:layout_marginTop="-36dp"
+                    app:civ_border_color="@android:color/white"
+                    app:civ_border_width="1dp"
+                    android:layout_below="@id/banner_image_view_view_user_detail_activity"
+                    android:layout_centerHorizontal="true"
+                    android:elevation="4dp"
+                    app:civ_circle_background_color="@android:color/white"/>
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="vertical"
+                    android:paddingTop="36dp"
+                    android:paddingStart="16dp"
+                    android:paddingEnd="16dp"
+                    android:layout_below="@id/banner_image_view_view_user_detail_activity"
+                    android:background="@android:color/white">
+
+                    <TextView
+                        android:id="@+id/user_name_text_view_view_user_detail_activity"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:textSize="18sp"
+                        android:textColor="@color/colorAccent"
+                        android:layout_gravity="center_horizontal"/>
+
+                    <TextView
+                        android:id="@+id/karma_text_view_view_user_detail_activity"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:textColor="@android:color/black"
+                        android:layout_gravity="center_horizontal"/>
+
+                    <android.support.design.chip.Chip
+                        android:id="@+id/subscribe_user_chip_view_user_detail_activity"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginTop="16dp"
+                        android:layout_marginBottom="16dp"
+                        android:textColor="@android:color/white"
+                        android:layout_gravity="center_horizontal"/>
+
+                </LinearLayout>
+
+            </RelativeLayout>
+
             <android.support.v7.widget.Toolbar
                 android:id="@+id/toolbar"
                 android:layout_width="match_parent"
                 android:layout_height="?attr/actionBarSize"
                 app:layout_collapseMode="pin"
-                app:popupTheme="@style/AppTheme.PopupOverlay" />
+                app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed"
+                app:popupTheme="@style/AppTheme.PopupOverlay"
+                app:navigationIcon="?attr/homeAsUpIndicator"/>
 
         </android.support.design.widget.CollapsingToolbarLayout>
+
     </android.support.design.widget.AppBarLayout>
 
     <include layout="@layout/content_view_user_detail" />

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

@@ -26,6 +26,8 @@
     <string name="subscriptions">Subscriptions</string>
     <string name="subscribers_number_detail">Subscribers: %1$d</string>
     <string name="online_subscribers_number_detail">Online: %1$d</string>
+    <string name="cannot_fetch_subreddit_info">Cannot fetch subreddit info</string>
+    <string name="cannot_fetch_user_info">Cannot fetch user info</string>
 
     <string name="gilded">x%1$d</string>
     <string name="title_activity_view_user_detail">ViewUserDetailActivity</string>
@@ -49,15 +51,15 @@
         "and use of imagery guide visual treatments. These elements do far more than please the "
         "eye. They create hierarchy, meaning, and focus. Deliberate color choices, edge to edge "
         "imagery, large scale typography, and intentional white space create a bold and graphic "
-        "interface that immerse the user in the experience.\n"
+        "interface that immerse the userData in the experience.\n"
-        "An emphasis on user actions makes core functionality immediately apparent and provides "
+        "An emphasis on userData actions makes core functionality immediately apparent and provides "
-        "waypoints for the user.\n\n"
+        "waypoints for the userData.\n\n"
 
         "Motion provides meaning.\n\n"
 
-        "Motion respects and reinforces the user as the prime mover. Primary user actions are "
+        "Motion respects and reinforces the userData as the prime mover. Primary userData actions are "
         "inflection points that initiate motion, transforming the whole design.\n"
-        "All action takes place in a single environment. Objects are presented to the user without "
+        "All action takes place in a single environment. Objects are presented to the userData without "
         "breaking the continuity of experience even as they transform and reorganize.\n"
         "Motion is meaningful and appropriate, serving to focus attention and maintain continuity. "
         "Feedback is subtle yet clear. Transitions are efficient yet coherent.\n\n"
@@ -96,7 +98,7 @@
         "Responsive elevation and dynamic elevation offsets.\n\n"
 
         "Some component types have responsive elevation, meaning they change elevation in response "
-        "to user input (e.g., normal, focused, and pressed) or system events. These elevation "
+        "to userData input (e.g., normal, focused, and pressed) or system events. These elevation "
         "changes are consistently implemented using dynamic elevation offsets.\n"
         "Dynamic elevation offsets are the goal elevation that a component moves towards, relative "
         "to the component’s resting state. They ensure that elevation changes are consistent "
@@ -113,10 +115,10 @@
         "whether on a per component basis or using the entire app layout.\n"
         "On a component level, components can move or be removed before they cause interference. "
         "For example, a floating action button (FAB) can disappear or move off screen before a "
-        "user picks up a card, or it can move if a snackbar appears.\n"
+        "userData picks up a card, or it can move if a snackbar appears.\n"
         "On the layout level, design your app layout to minimize opportunities for interference. "
         "For example, position the FAB to one side of stream of a cards so the FAB won’t interfere "
-        "when a user tries to pick up one of cards.\n\n"
+        "when a userData tries to pick up one of cards.\n\n"
     </string>
 
     <string name="subscribe">Subscribe</string>
@@ -126,5 +128,12 @@
     <string name="unsubscribed">Unsubscribed</string>"
     <string name="unsubscribe_failed">Unsubscribe Failed</string>
 
+    <string name="follow">Follow</string>
+    <string name="unfollow">Unfollow</string>
+    <string name="followed">Followed</string>
+    <string name="follow_failed">Following Failed</string>
+    <string name="unfollowed">Unfollowed</string>
+    <string name="unfollow_failed">Unfollowing Failed</string>
+
     <string name="content_description_banner_imageview">Subreddit Banner Image</string>
 </resources>

gradlew

@@ -119,7 +119,7 @@ if $cygwin ; then
         SEP="|"
     done
     OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a user-defined pattern to the cygpath arguments
+    # Add a userData-defined pattern to the cygpath arguments
     if [ "$GRADLE_CYGPATTERN" != "" ] ; then
         OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
     fi