Created onPostUpdate listener and implemented onPostComment.

app/src/main/java/org/communiquons/android/comunic/client/ui/adapters/PostsAdapter.java

@@ -62,14 +62,9 @@ public class PostsAdapter extends ArrayAdapter<Post>{
     private Utilities utils;
 
     /**
-     * Comments helper
+     * Actions update listener
      */
-    private CommentsHelper mCommentsHelper;
-
-    /**
-     * Get user helper
-     */
-    private GetUsersHelper mUserHelper;
+    private onPostUpdate mListener;
 
     /**
      * Create the Post Adapter
@@ -77,8 +72,11 @@ public class PostsAdapter extends ArrayAdapter<Post>{
      * @param context The context of execution of the application
      * @param list The list of posts
      * @param usersInfos Informations about the user
+     * @param listener Specify the listener to perform callback actions such as create a comment
+     *                 for example
      */
-    public PostsAdapter(Context context, PostsList list, ArrayMap<Integer, UserInfo> usersInfos){
+    public PostsAdapter(Context context, PostsList list, ArrayMap<Integer, UserInfo> usersInfos,
+                        onPostUpdate listener){
         super(context, 0, list);
 
         //Save the users info object
@@ -87,11 +85,7 @@ public class PostsAdapter extends ArrayAdapter<Post>{
         //Create utilities object
         utils = new Utilities(getContext());
 
-        //Create get user helper object
-        mUserHelper = new GetUsersHelper(getContext(), DatabaseHelper.getInstance(getContext()));
-
-        //Create comments helper object
-        mCommentsHelper = new CommentsHelper(context);
+        mListener = listener;
     }
 
     @NonNull
@@ -104,24 +98,24 @@ public class PostsAdapter extends ArrayAdapter<Post>{
             convertView = LayoutInflater.from(getContext())
                     .inflate(R.layout.post_item, parent, false);
 
-        //Get informations about the post and the user
+        //Get information about the post and the user
         Post post = getItem(position);
         assert post != null;
         UserInfo userInfo = null;
         if(mUsersInfos.containsKey(post.getUserID()))
             userInfo = mUsersInfos.get(post.getUserID());
 
-        //Get the views related to user Informations
+        //Get the views related to user Information
         ImageView userAccountImage = convertView.findViewById(R.id.user_account_image);
         TextView userAccountName = convertView.findViewById(R.id.user_account_name);
 
-        //Reset user informations
+        //Reset user information
         userAccountName.setText("");
         ImageLoadManager.remove(userAccountImage);
         userAccountImage.setImageDrawable(UiUtils.getDrawable(getContext(),
                 R.drawable.default_account_image));
 
-        //Set user informations if available
+        //Set user information if available
         if(userInfo != null){
             userAccountName.setText(userInfo.getDisplayFullName());
             ImageLoadManager.load(getContext(), userInfo.getAcountImageURL(), userAccountImage);
@@ -245,7 +239,7 @@ public class PostsAdapter extends ArrayAdapter<Post>{
      */
     private void sendComment(int pos, View container){
 
-        //Get post informations
+        //Get post information
         final Post post = getItem(pos);
         if(post==null)
             return;
@@ -254,79 +248,26 @@ public class PostsAdapter extends ArrayAdapter<Post>{
         final EditCommentContentView commentInput = container.findViewById(R.id.input_comment_content);
         final ImageButton sendButton = container.findViewById(R.id.comment_send_button);
 
-        //Get informations about the comment
-        final int postID = post.getId();
-        final String content = commentInput.getText()+"";
+        //Call interface
+        mListener.onCreateComment(pos, sendButton, post, commentInput);
 
-        //Check the comment's validity
-        if(!StringsUtils.isValidForContent(content)){
-            Toast.makeText(getContext(), R.string.err_invalid_comment_content,
-                    Toast.LENGTH_SHORT).show();
-            return;
-        }
+    }
 
-        //Lock send button
-        sendButton.setClickable(false);
+    /**
+     * This interface is used to redirect post update events to the fragment managing the
+     * rendering of the posts
+     */
+    public interface onPostUpdate {
 
-        //Submit the comment in a separate thread
-        new AsyncTask<Void, Void, Pair<UserInfo, Comment>>(){
+        /**
+         * This method is called when a comment creation request is made
+         *
+         * @param pos The position of the post in the list
+         * @param button The button triggered to submit comment creation
+         * @param post Informations about the target post
+         * @param input The input where the comment comment was typed
+         */
+        void onCreateComment(int pos, View button, Post post, EditCommentContentView input);
 
-            @Override
-            @Nullable
-            protected Pair<UserInfo, Comment> doInBackground(Void... params) {
-
-                //Try to create the comment
-                int commentID = mCommentsHelper.send_comment(postID, content);
-
-                //Check for errors
-                if(commentID < 1)
-                    return null;
-
-                //Get information about the newly created comment
-                Comment comment = mCommentsHelper.getInfosSingle(commentID);
-
-                //Check for errors
-                if(comment == null)
-                    return null;
-
-                //Get informations about the related user
-                UserInfo user = mUserHelper.getSingle(comment.getUserID(), false);
-
-                //Check for errors
-                if(user == null)
-                    return null;
-
-                //Return result
-                return Pair.create(user, comment);
-            }
-
-            @Override
-            protected void onPostExecute(@Nullable Pair<UserInfo, Comment> userInfoCommentPair) {
-
-                //Unlock send button
-                sendButton.setClickable(true);
-
-                //Check for errors
-                if(userInfoCommentPair == null){
-                    Toast.makeText(getContext(), R.string.err_create_comment,
-                            Toast.LENGTH_SHORT).show();
-                    return;
-                }
-
-                //Empty comment input
-                commentInput.setText("");
-
-                //Add the comment to the list
-                ArrayList<Comment> comments = post.getComments_list();
-                assert comments != null;
-                comments.add(userInfoCommentPair.second);
-
-                //Add the user to the list
-                mUsersInfos.put(userInfoCommentPair.first.getId(), userInfoCommentPair.first);
-
-                //Update data set
-                notifyDataSetChanged();
-            }
-        }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
     }
 }

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

@@ -1,18 +1,30 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
 import android.app.Fragment;
+import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.util.ArrayMap;
+import android.util.Pair;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
+import android.widget.Toast;
 
 import org.communiquons.android.comunic.client.R;
+import org.communiquons.android.comunic.client.data.DatabaseHelper;
+import org.communiquons.android.comunic.client.data.UsersInfo.GetUsersHelper;
 import org.communiquons.android.comunic.client.data.UsersInfo.UserInfo;
+import org.communiquons.android.comunic.client.data.comments.Comment;
+import org.communiquons.android.comunic.client.data.comments.CommentsHelper;
+import org.communiquons.android.comunic.client.data.posts.Post;
 import org.communiquons.android.comunic.client.data.posts.PostsList;
+import org.communiquons.android.comunic.client.data.utils.StringsUtils;
 import org.communiquons.android.comunic.client.ui.adapters.PostsAdapter;
+import org.communiquons.android.comunic.client.ui.views.EditCommentContentView;
+
+import java.util.ArrayList;
 
 /**
  * Posts list fragment
@@ -23,7 +35,8 @@ import org.communiquons.android.comunic.client.ui.adapters.PostsAdapter;
  * Created by pierre on 3/18/18.
  */
 
-public class PostsListFragment extends Fragment {
+public class PostsListFragment extends Fragment
+    implements PostsAdapter.onPostUpdate {
 
     /**
      * The list of posts
@@ -45,6 +58,16 @@ public class PostsListFragment extends Fragment {
      */
     ListView mListView;
 
+    /**
+     * Comments helper
+     */
+    CommentsHelper mCommentsHelper;
+
+    /**
+     * Users helper
+     */
+    GetUsersHelper mUserHelper;
+
     /**
      * Set the list of posts of the fragment
      *
@@ -80,21 +103,115 @@ public class PostsListFragment extends Fragment {
         show();
     }
 
+    /**
+     * Display the list of posts
+     */
     public void show(){
 
+        //Create comment helper
+        mCommentsHelper = new CommentsHelper(getActivity());
+
+        //Create user helper
+        mUserHelper = new GetUsersHelper(getActivity(), DatabaseHelper.getInstance(getActivity()));
+
         //Check if the list of posts is not null
         if(mPostsList == null && mUsersInfo == null)
             return;
 
         //Create posts adapter (if required)
         if(mPostsAdapter == null) {
-            mPostsAdapter = new PostsAdapter(getActivity(), mPostsList, mUsersInfo);
+            mPostsAdapter = new PostsAdapter(getActivity(), mPostsList, mUsersInfo, this);
 
             //Connect the adapter to the view
             mListView.setAdapter(mPostsAdapter);
         }
 
-        //Notify dataset update
+        //Notify data set update
         mPostsAdapter.notifyDataSetChanged();
     }
+
+    @Override
+    public void onCreateComment(int pos, final View button, final Post post,
+                                final EditCommentContentView input) {
+
+        //Get information about the comment
+        final int postID = post.getId();
+        final String content = input.getText()+"";
+
+        //Check the comment's validity
+        if(!StringsUtils.isValidForContent(content)){
+            Toast.makeText(getActivity(), R.string.err_invalid_comment_content,
+                    Toast.LENGTH_SHORT).show();
+            return;
+        }
+
+        //Lock send button
+        button.setClickable(false);
+
+        //Submit the comment in a separate thread
+        new AsyncTask<Void, Void, Pair<UserInfo, Comment>>(){
+
+            @Override
+            @Nullable
+            protected Pair<UserInfo, Comment> doInBackground(Void... params) {
+
+                //Try to create the comment
+                int commentID = mCommentsHelper.send_comment(postID, content);
+
+                //Check for errors
+                if(commentID < 1)
+                    return null;
+
+                //Get information about the newly created comment
+                Comment comment = mCommentsHelper.getInfosSingle(commentID);
+
+                //Check for errors
+                if(comment == null)
+                    return null;
+
+                //Get information about the related user
+                UserInfo user = mUserHelper.getSingle(comment.getUserID(), false);
+
+                //Check for errors
+                if(user == null)
+                    return null;
+
+                //Return result
+                return Pair.create(user, comment);
+            }
+
+            @Override
+            protected void onPostExecute(@Nullable Pair<UserInfo, Comment> userInfoCommentPair) {
+
+                //Check if the activity has been destroyed
+                if(getActivity() == null)
+                    return;
+
+                //Unlock send button
+                button.setClickable(true);
+
+                //Check for errors
+                if(userInfoCommentPair == null){
+                    Toast.makeText(getActivity(), R.string.err_create_comment,
+                            Toast.LENGTH_SHORT).show();
+                    return;
+                }
+
+                //Empty comment input
+                input.setText("");
+
+                //Add the comment to the list
+                ArrayList<Comment> comments = post.getComments_list();
+                assert comments != null;
+                comments.add(userInfoCommentPair.second);
+
+                //Add the user to the list
+                mUsersInfo.put(userInfoCommentPair.first.getId(), userInfoCommentPair.first);
+
+                //Update data set
+                mPostsAdapter.notifyDataSetChanged();
+
+            }
+        }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
+    }
 }