Added latest posts fragment

app/src/main/java/org/communiquons/android/comunic/client/data/helpers/PostsHelper.java

@@ -100,13 +100,33 @@ public class PostsHelper {
 
             //Get the list of posts and process it
             JSONArray posts = response.getJSONArray();
-            PostsList list = new PostsList();
+            return parse_json_posts_list(posts);
 
-            for(int i = 0; i < posts.length(); i++){
+        } catch (Exception e) {
-                list.add(parse_json_post(posts.getJSONObject(i)));
+            e.printStackTrace();
+            return null;
+        }
     }
 
-            return list;
+    /**
+     * Get the list of latest posts of a user
+     *
+     * @return The list of posts / null in case of failure
+     */
+    @Nullable
+    public PostsList get_latest() {
+        //Perform a request on the API
+        APIRequest params = new APIRequest(mContext, "posts/get_latest");
+
+        //Perform the request
+        try {
+
+            //Make the request on the API
+            APIResponse response = new APIRequestHelper().exec(params);
+
+            //Get the list of posts and process it
+            JSONArray posts = response.getJSONArray();
+            return parse_json_posts_list(posts);
 
         } catch (Exception e) {
             e.printStackTrace();
@@ -255,11 +275,29 @@ public class PostsHelper {
         }
     }
 
+    /**
+     * Turn a JSONArray that contains information about posts into PostList object
+     *
+     * @param array The list of posts to process
+     * @return The list of posts / null in case of failure
+     * @throws JSONException in case of failure
+     */
+    private PostsList parse_json_posts_list(JSONArray array) throws JSONException {
+        PostsList list = new PostsList();
+
+        for(int i = 0; i < array.length(); i++){
+            list.add(parse_json_post(array.getJSONObject(i)));
+        }
+
+        return list;
+    }
+
     /**
      * Parse a JSON post information into POST object
      *
      * @param json Source JSON post information
      * @return The created post element
+     * @throws JSONException in case of failure
      */
     private Post parse_json_post(JSONObject json) throws JSONException {
 

app/src/main/java/org/communiquons/android/comunic/client/ui/activities/MainActivity.java

@@ -28,6 +28,7 @@ import org.communiquons.android.comunic.client.data.helpers.ConversationsListHel
 import org.communiquons.android.comunic.client.data.runnables.FriendRefreshLoopRunnable;
 import org.communiquons.android.comunic.client.data.services.NotificationsService;
 import org.communiquons.android.comunic.client.data.utils.PreferencesUtils;
+import org.communiquons.android.comunic.client.ui.fragments.LatestPostsFragment;
 import org.communiquons.android.comunic.client.ui.fragments.SinglePostFragment;
 import org.communiquons.android.comunic.client.ui.fragments.UserAccessDeniedFragment;
 import org.communiquons.android.comunic.client.ui.listeners.onOpenUsersPageListener;
@@ -183,6 +184,12 @@ public class MainActivity extends AppCompatActivity implements openConversationL
         //Get action id
         int id = item.getItemId();
 
+        //To display the personal page of the user
+        if(id == R.id.action_open_user_page){
+            openUserPage(AccountUtils.getID(MainActivity.this));
+            return true;
+        }
+
         //To display the list of friends
         if(id == R.id.action_friends_list){
             openFriendsFragment();
@@ -236,11 +243,12 @@ public class MainActivity extends AppCompatActivity implements openConversationL
                     //If the user chose to show information about him
                     case R.id.main_bottom_navigation_me_view:
 
-                        //Old version
+                        //Old versions
                         //openUserInfosFragment();
+                        //openUserPage(AccountUtils.getID(MainActivity.this));
 
                         //New version
-                        openUserPage(AccountUtils.getID(MainActivity.this));
+                        openLatestPostsFragment();
                         return true;
 
                     //If the user wants to switch to the conversation fragment
@@ -503,6 +511,21 @@ public class MainActivity extends AppCompatActivity implements openConversationL
         transaction.commit();
     }
 
+    /**
+     * Open latest posts fragment
+     */
+    public void openLatestPostsFragment(){
+
+        //Create the fragment
+        LatestPostsFragment latestPostsFragment = new LatestPostsFragment();
+
+        //Perform the transaction
+        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        transaction.replace(R.id.main_fragment, latestPostsFragment);
+        transaction.addToBackStack(null);
+        transaction.commit();
+    }
+
     /**
      * Clear the cache database of the application
      */

app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/LatestPostsFragment.java

@@ -0,0 +1,200 @@
+package org.communiquons.android.comunic.client.ui.fragments;
+
+import android.app.Fragment;
+import android.app.FragmentTransaction;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.util.ArrayMap;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import org.communiquons.android.comunic.client.R;
+import org.communiquons.android.comunic.client.data.arrays.PostsList;
+import org.communiquons.android.comunic.client.data.helpers.GetUsersHelper;
+import org.communiquons.android.comunic.client.data.helpers.PostsHelper;
+import org.communiquons.android.comunic.client.data.models.UserInfo;
+import org.communiquons.android.comunic.client.ui.activities.MainActivity;
+
+/**
+ * Latest posts fragment
+ *
+ * @author Pierre HUBERT
+ * Created by pierre on 5/10/18.
+ */
+
+public class LatestPostsFragment extends Fragment {
+
+    /**
+     * Debug tag
+     */
+    private static final String TAG = "LatestPostsFragment";
+
+    /**
+     * Posts helper
+     */
+    PostsHelper mPostsHelper;
+
+    /**
+     * User information helper
+     */
+    GetUsersHelper mUserHelper;
+
+    /**
+     * The list of posts
+     */
+    PostsList mPostsList;
+
+    /**
+     * Information about the related users
+     */
+    ArrayMap<Integer, UserInfo> mUserInfo;
+
+    /**
+     * Loading progress bar
+     */
+    ProgressBar mProgressBar;
+
+    /**
+     * No posts notice
+     */
+    TextView mNoPostNotice;
+
+    @Override
+    public void onStart() {
+        super.onStart();
+
+        //Create posts helper
+        mPostsHelper = new PostsHelper(getActivity());
+
+        //Create user helper
+        mUserHelper = new GetUsersHelper(getActivity());
+    }
+
+    @Nullable
+    @Override
+    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_latest_posts, container, false);
+    }
+
+    @Override
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        //Get some of the views
+        mProgressBar = view.findViewById(R.id.loading_progress);
+        mNoPostNotice = view.findViewById(R.id.no_post_notice);
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+
+        //Update dock and activity title
+        getActivity().setTitle(R.string.fragment_latestposts_title);
+
+        //Update the bottom navigation menu
+        ((MainActivity) getActivity())
+                .setSelectedNavigationItem(R.id.main_bottom_navigation_me_view);
+
+        //Refresh the list of posts of the user
+        refresh_posts_list();
+    }
+
+    /**
+     * Refresh the list of posts of the user
+     */
+    private void refresh_posts_list(){
+
+        //Show progress bar / hide no posts notice
+        toggleLoadingBarVisibility(true);
+        toggleNoPostNoticeVisibility(false);
+
+        //Get the list of latest posts
+        new AsyncTask<Void, Void, PostsList>(){
+            @Override
+            protected PostsList doInBackground(Void... params) {
+                PostsList postsList =  mPostsHelper.get_latest();
+
+                //Get user information, if possible
+                if(postsList != null)
+                    mUserInfo = mUserHelper.getMultiple(postsList.getUsersId());
+
+                return postsList;
+            }
+
+            @Override
+            protected void onPostExecute(PostsList posts) {
+
+                //Check if the activity still exists or not
+                if(getActivity() == null)
+                    return;
+
+                on_got_new_posts_list(posts);
+            }
+        }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
+
+    }
+
+    /**
+     * This function is called when we have got a new post list
+     *
+     * @param list The new list of posts
+     */
+    private void on_got_new_posts_list(@Nullable PostsList list){
+
+        //Hide loading bar
+        toggleLoadingBarVisibility(false);
+
+        //Check for errors
+        if(list == null){
+            Toast.makeText(getActivity(), R.string.err_get_latest_posts, Toast.LENGTH_SHORT).show();
+            return;
+        }
+        if(mUserInfo == null){
+            Toast.makeText(getActivity(), R.string.err_get_users_info, Toast.LENGTH_SHORT).show();
+            return;
+        }
+
+        //Save the list of posts
+        mPostsList = list;
+
+        //Check if the posts list is empty
+        if(mPostsList.size() == 0)
+            toggleNoPostNoticeVisibility(true);
+
+
+        //Append the new posts list
+        //Apply the post fragment
+        PostsListFragment postsListFragment = new PostsListFragment();
+        postsListFragment.setPostsList(mPostsList);
+        postsListFragment.setUsersInfos(mUserInfo);
+
+        //Create and commit a transaction
+        FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
+        transaction.replace(R.id.posts_list_target, postsListFragment);
+        transaction.commit();
+    }
+
+    /**
+     * Toggle progress bar visibility
+     *
+     * @param visible Specify whether the progress bar should be visible or not
+     */
+    private void toggleLoadingBarVisibility(boolean visible){
+        mProgressBar.setVisibility(visible ? View.VISIBLE : View.GONE);
+    }
+
+    /**
+     * Toggle no post notice visibility
+     *
+     * @param visible The visibility of the no post notice
+     */
+    private void toggleNoPostNoticeVisibility(boolean visible){
+        mNoPostNotice.setVisibility(visible ? View.VISIBLE : View.GONE);
+    }
+}

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

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <!-- Loading progress bar -->
+    <ProgressBar
+        android:id="@+id/loading_progress"
+        android:layout_width="50dp"
+        android:layout_height="50dp"
+        android:layout_centerVertical="true"
+        android:layout_centerHorizontal="true" />
+
+    <!-- No posts notice -->
+    <TextView
+        android:id="@+id/no_post_notice"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/notice_no_latest_posts"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="15dp" />
+
+    <!-- Posts list -->
+    <FrameLayout
+        android:id="@+id/posts_list_target"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</RelativeLayout>

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

@@ -2,6 +2,11 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
+    <!-- Open user page -->
+    <item
+        android:id="@+id/action_open_user_page"
+        android:title="@string/main_menu_personal_page"/>
+
     <!-- Display friends list -->
     <item
         android:id="@+id/action_friends_list"

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

@@ -185,4 +185,8 @@
     <string name="success_clear_local_db">The local database has been successfully cleared! You may need to restart the application to make the changes being fully applied.</string>
     <string name="err_clear_local_db">An error occurred while trying to clear local database!</string>
     <string name="image_description_pick_image">Pick an image</string>
+    <string name="main_menu_personal_page">My page</string>
+    <string name="fragment_latestposts_title">Latest posts</string>
+    <string name="err_get_latest_posts">An error occurred while trying to retrieve the list of latest posts!</string>
+    <string name="notice_no_latest_posts">You do not have any latest posts to display here.</string>
 </resources>