Merge pull request #248 from wncc/notif

Change notifications to sheet, add animations to recyclerviews

app/src/main/java/app/insti/UpdatableList.java

@@ -4,25 +4,21 @@ import java.util.ArrayList;
 import java.util.List;
 
 public class UpdatableList<T> extends ArrayList<T> {
-    private List<T> cache = new ArrayList<>();
-
-    public List<T> getCache() {
-        return cache;
-    }
-
-    public void setCache(List<T> mCache) {
-        cache = mCache;
+    /** Convert a list to updatable list */
+    public void setList(List<T> list) {
+        this.clear();
+        this.addAll(list);
     }
 
     /** Update existing or add */
     public void updateCache(T t) {
-        for (int i = 0; i < cache.size(); i++) {
-            T cachedT = cache.get(i);
+        for (int i = 0; i < this.size(); i++) {
+            T cachedT = this.get(i);
             if (cachedT.equals(t)) {
-                cache.set(i, t);
+                this.set(i, t);
                 return;
             }
         }
-        cache.add(t);
+        this.add(t);
     }
 }

app/src/main/java/app/insti/Utils.java

@@ -20,6 +20,7 @@ import app.insti.activity.MainActivity;
 import app.insti.api.RetrofitInterface;
 import app.insti.api.model.Body;
 import app.insti.api.model.Event;
+import app.insti.api.model.Notification;
 import app.insti.api.model.User;
 import app.insti.fragment.BodyFragment;
 import app.insti.fragment.EventFragment;
@@ -27,6 +28,8 @@ import app.insti.fragment.UserFragment;
 
 public final class Utils {
     public static UpdatableList<Event> eventCache = new UpdatableList<>();
+    public static UpdatableList<Notification> notificationCache = null;
+
     private static String sessionId;
     private static RetrofitInterface retrofitInterface;
     public static Gson gson;

app/src/main/java/app/insti/activity/MainActivity.java

@@ -47,6 +47,7 @@ import java.util.List;
 import app.insti.Constants;
 import app.insti.R;
 import app.insti.SessionManager;
+import app.insti.UpdatableList;
 import app.insti.Utils;
 import app.insti.api.EmptyCallback;
 import app.insti.api.RetrofitInterface;
@@ -95,8 +96,6 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
     private User currentUser;
     private BackHandledFragment selectedFragment;
     private Menu menu;
-    private RetrofitInterface retrofitInterface;
-    private List<Notification> notifications = null;
 
     public static void hideKeyboard(Activity activity) {
         InputMethodManager imm = (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);
@@ -180,7 +179,7 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
      */
     private void fetchNotifications() {
         // Try memory cache
-        if (notifications != null) {
+        if (Utils.notificationCache != null) {
             showNotifications();
             return;
         }
@@ -191,7 +190,8 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
             @Override
             public void onResponse(Call<List<Notification>> call, Response<List<Notification>> response) {
                 if (response.isSuccessful()) {
-                    notifications = response.body();
+                    Utils.notificationCache = new UpdatableList<>();
+                    Utils.notificationCache.setList(response.body());
                     showNotifications();
                 }
             }
@@ -202,7 +202,7 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
      * Show the right notification icon
      */
     private void showNotifications() {
-        if (notifications != null && !notifications.isEmpty()) {
+        if (Utils.notificationCache != null && !Utils.notificationCache.isEmpty()) {
             menu.findItem(R.id.action_notifications).setIcon(R.drawable.baseline_notifications_active_white_24);
         } else {
             menu.findItem(R.id.action_notifications).setIcon(R.drawable.ic_notifications_white_24dp);
@@ -521,7 +521,7 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
 
         if (id == R.id.action_notifications) {
             NotificationsFragment notificationsFragment = new NotificationsFragment();
-            updateFragment(notificationsFragment);
+            notificationsFragment.show(getSupportFragmentManager(), TAG);
             return true;
         }
         return super.onOptionsItemSelected(item);

app/src/main/java/app/insti/adapter/CardAdapter.java

@@ -38,6 +38,7 @@ public abstract class CardAdapter<T extends CardInterface> extends RecyclerView.
     public CardAdapter(List<T> tList, Fragment fragment) {
         this.tList = tList;
         mFragment = fragment;
+        this.setHasStableIds(true);
     }
 
     @Override
@@ -114,6 +115,11 @@ public abstract class CardAdapter<T extends CardInterface> extends RecyclerView.
         else return 2;
     }
 
+    @Override
+    public long getItemId(int position) {
+        return tList.get(position).getId();
+    }
+
     @Override
     public int getItemCount() {
         return tList.size();

app/src/main/java/app/insti/adapter/MessMenuAdapter.java

@@ -19,6 +19,7 @@ public class MessMenuAdapter extends RecyclerView.Adapter<MessMenuAdapter.ViewHo
 
     public MessMenuAdapter(List<MessMenu> messMenus) {
         this.messMenus = messMenus;
+        this.setHasStableIds(true);
     }
 
     @NonNull
@@ -42,11 +43,20 @@ public class MessMenuAdapter extends RecyclerView.Adapter<MessMenuAdapter.ViewHo
         holder.dinner.setText(messMenu.getDinner());
     }
 
+    @Override
+    public long getItemId(int position) {
+        return messMenus.get(position).getMealID().hashCode();
+    }
+
     @Override
     public int getItemCount() {
         return messMenus.size();
     }
 
+    public void setMenu(List<MessMenu> menus) {
+        messMenus = menus;
+    }
+
     private String generateDayString(int day) {
         switch (day) {
             case 1:

app/src/main/java/app/insti/adapter/NewsAdapter.java

@@ -35,6 +35,7 @@ public class NewsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> i
     public NewsAdapter(List<NewsArticle> newsArticles, ItemClickListener itemClickListener) {
         this.newsArticles = newsArticles;
         this.itemClickListener = itemClickListener;
+        this.setHasStableIds(true);
     }
 
     @Override
@@ -108,6 +109,11 @@ public class NewsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> i
         return newsArticles.size() > position ? VIEW_ITEM : VIEW_PROG;
     }
 
+    @Override
+    public long getItemId(int position) {
+        return newsArticles.get(position).getArticleID().hashCode();
+    }
+
     @Override
     public int getItemCount() {
         return NewsFragment.showLoader ? (newsArticles.size() + 1) : newsArticles.size();

app/src/main/java/app/insti/adapter/NotificationsAdapter.java

@@ -15,12 +15,16 @@ import app.insti.api.model.Event;
 import app.insti.api.model.Notification;
 import app.insti.api.model.PlacementBlogPost;
 import app.insti.fragment.NewsFragment;
+import app.insti.fragment.NotificationsFragment;
 import app.insti.fragment.PlacementBlogFragment;
 import app.insti.fragment.TrainingBlogFragment;
 
 public class NotificationsAdapter extends CardAdapter<Notification> {
+    private NotificationsFragment notificationsFragment;
+
     public NotificationsAdapter(List<Notification> notifications, Fragment fragment) {
         super(notifications, fragment);
+        notificationsFragment = (NotificationsFragment) fragment;
     }
 
     @Override
@@ -30,6 +34,9 @@ public class NotificationsAdapter extends CardAdapter<Notification> {
         String sessId = Utils.getSessionIDHeader();
         retrofitInterface.markNotificationRead(sessId, notification.getNotificationId().toString()).enqueue(new EmptyCallback<Void>());
 
+        /* Close the bottom sheet */
+        notificationsFragment.dismiss();
+
         /* Open event */
         if (notification.isEvent()) {
             Gson gson = new Gson();

app/src/main/java/app/insti/adapter/PlacementBlogAdapter.java

@@ -32,6 +32,7 @@ public class PlacementBlogAdapter extends RecyclerView.Adapter<RecyclerView.View
     public PlacementBlogAdapter(List<PlacementBlogPost> posts, ItemClickListener itemClickListener) {
         this.posts = posts;
         this.itemClickListener = itemClickListener;
+        this.setHasStableIds(true);
     }
 
     public List<PlacementBlogPost> getPosts() {
@@ -100,6 +101,11 @@ public class PlacementBlogAdapter extends RecyclerView.Adapter<RecyclerView.View
         }
     }
 
+    @Override
+    public long getItemId(int position) {
+        return posts.get(position).getPostID().hashCode();
+    }
+
     public static class ProgressViewHolder extends RecyclerView.ViewHolder {
         public ProgressBar progressBar;
 

app/src/main/java/app/insti/adapter/TrainingBlogAdapter.java

@@ -34,6 +34,7 @@ public class TrainingBlogAdapter extends RecyclerView.Adapter<RecyclerView.ViewH
     public TrainingBlogAdapter(List<TrainingBlogPost> posts, ItemClickListener itemClickListener) {
         this.posts = posts;
         this.itemClickListener = itemClickListener;
+        this.setHasStableIds(true);
     }
 
     public List<TrainingBlogPost> getPosts() {
@@ -96,6 +97,11 @@ public class TrainingBlogAdapter extends RecyclerView.Adapter<RecyclerView.ViewH
         return posts.size() > position ? VIEW_ITEM : VIEW_PROG;
     }
 
+    @Override
+    public long getItemId(int position) {
+        return posts.get(position).getPostID().hashCode();
+    }
+
     @Override
     public int getItemCount() {
         return TrainingBlogFragment.showLoader ? (posts.size() + 1) : posts.size();

app/src/main/java/app/insti/api/model/Body.java

@@ -184,6 +184,10 @@ public class Body implements CardInterface {
         this.bodyRoles = bodyRoles;
     }
 
+    public long getId() {
+        return getBodyID().hashCode();
+    }
+
     public String getTitle() {
         return getBodyName();
     }

app/src/main/java/app/insti/api/model/Event.java

@@ -243,6 +243,10 @@ public class Event implements CardInterface {
         return Objects.hash(eventID);
     }
 
+    public long getId() {
+        return hashCode();
+    }
+
     public String getTitle() {
         return getEventName();
     }

app/src/main/java/app/insti/api/model/Notification.java

@@ -79,6 +79,10 @@ public class Notification implements CardInterface {
         this.notificationActor = notificationActor;
     }
 
+    public long getId() {
+        return getNotificationId().hashCode();
+    }
+
     public String getTitle() {
         if (isEvent()) {
             return getEvent().getEventName();

app/src/main/java/app/insti/api/model/Role.java

@@ -121,6 +121,10 @@ public class Role implements CardInterface {
         this.roleUsersDetail = roleUsersDetail;
     }
 
+    public long getId() {
+        return getRoleID().hashCode();
+    }
+
     public String getTitle() {
         return getRoleBodyDetails().getBodyName();
     }

app/src/main/java/app/insti/api/model/User.java

@@ -238,6 +238,10 @@ public class User implements CardInterface {
         return new Gson().toJson(this);
     }
 
+    public long getId() {
+        return getUserID().hashCode();
+    }
+
     public String getTitle() {
         return getUserName();
     }

app/src/main/java/app/insti/fragment/FeedFragment.java

@@ -74,10 +74,10 @@ public class FeedFragment extends BaseFragment {
         fab = getView().findViewById(R.id.fab);
 
         // Initialize the feed
-        if (Utils.eventCache.getCache() == null || Utils.eventCache.getCache().size() == 0) {
+        if (Utils.eventCache == null || Utils.eventCache.isEmpty()) {
             updateFeed();
         } else {
-            displayEvents(Utils.eventCache.getCache());
+            displayEvents(Utils.eventCache);
         }
     }
 
@@ -107,8 +107,8 @@ public class FeedFragment extends BaseFragment {
             @Override
             public void onResponse(Call<NewsFeedResponse> call, Response<NewsFeedResponse> response) {
                 if (response.isSuccessful()) {
-                    Utils.eventCache.setCache(response.body().getEvents());
-                    displayEvents(Utils.eventCache.getCache());
+                    Utils.eventCache.setList(response.body().getEvents());
+                    displayEvents(Utils.eventCache);
                 }
                 //Server Error
                 feedSwipeRefreshLayout.setRefreshing(false);

app/src/main/java/app/insti/fragment/MessMenuFragment.java

@@ -37,6 +37,7 @@ import retrofit2.Response;
  */
 public class MessMenuFragment extends BaseFragment {
 
+    private MessMenuAdapter messMenuAdapter;
     private RecyclerView messMenuRecyclerView;
     private SwipeRefreshLayout messMenuSwipeRefreshLayout;
     private Spinner hostelSpinner;
@@ -164,14 +165,19 @@ public class MessMenuFragment extends BaseFragment {
             }
         }
 
-        final MessMenuAdapter messMenuAdapter = new MessMenuAdapter(sortedMenus);
         getActivityBuffer().safely(new ActivityBuffer.IRunnable() {
             @Override
             public void run(Activity pActivity) {
                 try {
+                    if (messMenuAdapter == null) {
+                        messMenuAdapter = new MessMenuAdapter(sortedMenus);
                         messMenuRecyclerView = getActivity().findViewById(R.id.mess_menu_recycler_view);
                         messMenuRecyclerView.setAdapter(messMenuAdapter);
                         messMenuRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+                    } else {
+                        messMenuAdapter.setMenu(sortedMenus);
+                        messMenuAdapter.notifyDataSetChanged();
+                    }
                 } catch (NullPointerException e) {
                     e.printStackTrace();
                 }

app/src/main/java/app/insti/fragment/NotificationsFragment.java

@@ -2,10 +2,10 @@ package app.insti.fragment;
 
 
 import android.os.Bundle;
+import android.support.design.widget.BottomSheetDialogFragment;
 import android.support.v4.app.Fragment;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
-import android.support.v7.widget.Toolbar;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -13,22 +13,22 @@ import android.view.ViewGroup;
 import java.util.List;
 
 import app.insti.R;
+import app.insti.UpdatableList;
 import app.insti.Utils;
 import app.insti.adapter.NotificationsAdapter;
+import app.insti.api.EmptyCallback;
 import app.insti.api.RetrofitInterface;
 import app.insti.api.model.Notification;
 import retrofit2.Call;
-import retrofit2.Callback;
 import retrofit2.Response;
 
 /**
  * A simple {@link Fragment} subclass.
  */
-public class NotificationsFragment extends BaseFragment {
+public class NotificationsFragment extends BottomSheetDialogFragment {
 
-    RecyclerView notificationsRecyclerView;
-
-    List<Notification> notifications;
+    private RecyclerView notificationsRecyclerView;
+    private NotificationsAdapter notificationsAdapter = null;
 
     public NotificationsFragment() {
         // Required empty public constructor
@@ -46,35 +46,42 @@ public class NotificationsFragment extends BaseFragment {
     public void onStart() {
         super.onStart();
 
-        Toolbar toolbar = getActivity().findViewById(R.id.toolbar);
-        toolbar.setTitle("Notifications");
+        /* Show cached notifications */
+        if (Utils.notificationCache != null) {
+            showNotifications(Utils.notificationCache);
+        } else {
+            Utils.notificationCache = new UpdatableList<>();
+        }
 
+        /* Update notifications */
         RetrofitInterface retrofitInterface = Utils.getRetrofitInterface();
-        retrofitInterface.getNotifications(Utils.getSessionIDHeader()).enqueue(new Callback<List<Notification>>() {
+        retrofitInterface.getNotifications(Utils.getSessionIDHeader()).enqueue(new EmptyCallback<List<Notification>>() {
             @Override
             public void onResponse(Call<List<Notification>> call, Response<List<Notification>> response) {
                 if (response.isSuccessful()) {
-                    notifications = response.body();
-                    showNotifications(notifications);
-                }
+                    Utils.notificationCache.setList(response.body());
+                    showNotifications(Utils.notificationCache);
                 }
-
-            @Override
-            public void onFailure(Call<List<Notification>> call, Throwable t) {
             }
         });
     }
 
     private void showNotifications(final List<Notification> notifications) {
         /* Check if activity is done with */
-        if (getActivity() == null) return;
+        if (getActivity() == null || getView() == null) return;
 
         /* Hide loader */
-        getActivity().findViewById(R.id.loadingPanel).setVisibility(View.GONE);
+        getView().findViewById(R.id.loadingPanel).setVisibility(View.GONE);
 
-        NotificationsAdapter notificationsAdapter = new NotificationsAdapter(notifications, this);
-        notificationsRecyclerView = (RecyclerView) getActivity().findViewById(R.id.notifications_recycler_view);
+        /* Initialize */
+        if (notificationsAdapter == null) {
+            notificationsAdapter = new NotificationsAdapter(notifications, this);
+            notificationsRecyclerView = (RecyclerView) getView().findViewById(R.id.notifications_recycler_view);
             notificationsRecyclerView.setAdapter(notificationsAdapter);
             notificationsRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+        } else {
+            notificationsAdapter.setList(notifications);
+            notificationsAdapter.notifyDataSetChanged();
+        }
     }
 }

app/src/main/java/app/insti/interfaces/CardInterface.java

 package app.insti.interfaces;
 
 public interface CardInterface {
+    long getId();
     String getTitle();
     String getSubtitle();
     String getAvatarUrl();