Can like posts.

app/src/main/java/org/communiquons/android/comunic/client/data/likes/LikesHelper.java

@@ -0,0 +1,71 @@
+package org.communiquons.android.comunic.client.data.likes;
+
+import android.content.Context;
+
+import org.communiquons.android.comunic.client.api.APIRequest;
+import org.communiquons.android.comunic.client.api.APIRequestParameters;
+import org.communiquons.android.comunic.client.api.APIResponse;
+
+/**
+ * Likes Helper
+ *
+ * @author Pierre HUBERT
+ * Created by pierre on 4/7/18.
+ */
+
+public class LikesHelper {
+
+    /**
+     * The context of the application
+     */
+    private Context mContext;
+
+    /**
+     * Public constructor of the likes helper class
+     *
+     * @param context The context of the application
+     */
+    public LikesHelper(Context context){
+
+        //Save the context
+        mContext = context.getApplicationContext();
+
+    }
+
+    /**
+     * Update the like other a content
+     *
+     * @param type The type of the element
+     * @param id The ID of the target element
+     * @param liking New liking status
+     * @return TRUE for a success / FALSE for a failure
+     */
+    public boolean update(LikesType type, int id, boolean liking){
+
+        //Perform an API request
+        APIRequestParameters params = new APIRequestParameters(mContext, "likes/update");
+        params.addInt("id", id);
+        params.addBoolean("like", liking);
+
+        //Put the kind of element
+        switch (type){
+            case POST:
+                params.addString("type", "post");
+                break;
+
+            default:
+                throw new RuntimeException("Unrecognized kind of post !");
+        }
+
+        //Intend to perform the request
+        try {
+            APIResponse response = new APIRequest().exec(params);
+
+            return response.getResponse_code() == 200;
+
+        } catch (Exception e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+}

app/src/main/java/org/communiquons/android/comunic/client/data/likes/LikesType.java

@@ -0,0 +1,17 @@
+package org.communiquons.android.comunic.client.data.likes;
+
+/**
+ * Likes types
+ *
+ * @author Pierre HUBERT
+ * Created by pierre on 4/7/18.
+ */
+
+public enum LikesType {
+
+    /**
+     * For the posts
+     */
+    POST
+
+}

app/src/main/java/org/communiquons/android/comunic/client/data/posts/Post.java

@@ -139,7 +139,7 @@ public class Post {
 
 
     //Set and get the number of likes other the like
-    void setNumberLike(int numberLike) {
+    public void setNumberLike(int numberLike) {
         this.numberLike = numberLike;
     }
 
@@ -149,7 +149,7 @@ public class Post {
 
 
     //Set and get the liking state over the post
-    void setLiking(boolean liking) {
+    public void setLiking(boolean liking) {
         isLiking = liking;
     }
 

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

@@ -166,6 +166,13 @@ public class PostsAdapter extends ArrayAdapter<Post>{
         LikeButtonView likeButtonView = convertView.findViewById(R.id.like_button);
         likeButtonView.setNumberLikes(post.getNumberLike());
         likeButtonView.setIsLiking(post.isLiking());
+        likeButtonView.setUpdateListener(new LikeButtonView.OnLikeUpdateListener() {
+            @Override
+            public void OnLikeUpdate(boolean isLiking) {
+                //Call listener
+                mListener.onPostLikeUpdate(post, isLiking);
+            }
+        });
 
         //Process post comments
         ArrayList<Comment> comments = post.getComments_list();
@@ -282,6 +289,14 @@ public class PostsAdapter extends ArrayAdapter<Post>{
          */
         void showPostActions(View button, int pos, Post post);
 
+        /**
+         * Handles the update of the likes of a post
+         *
+         * @param post The target post
+         * @param is_liking New liking status
+         */
+        void onPostLikeUpdate(Post post, boolean is_liking);
+
         /**
          * Handles the deletion process of a post
          *

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

@@ -24,6 +24,8 @@ 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.likes.LikesHelper;
+import org.communiquons.android.comunic.client.data.likes.LikesType;
 import org.communiquons.android.comunic.client.data.posts.Post;
 import org.communiquons.android.comunic.client.data.posts.PostsHelper;
 import org.communiquons.android.comunic.client.data.posts.PostsList;
@@ -111,6 +113,11 @@ public class PostsListFragment extends Fragment
      */
     GetUsersHelper mUserHelper;
 
+    /**
+     * Likes helper
+     */
+    LikesHelper mLikesHelper;
+
     /**
      * Set the list of posts of the fragment
      *
@@ -129,6 +136,23 @@ public class PostsListFragment extends Fragment
         this.mUsersInfo = list;
     }
 
+    @Override
+    public void onStart() {
+        super.onStart();
+
+        //Create post helper
+        mPostsHelper = new PostsHelper(getActivity());
+
+        //Create comment helper
+        mCommentsHelper = new CommentsHelper(getActivity());
+
+        //Create user helper
+        mUserHelper = new GetUsersHelper(getActivity(), DatabaseHelper.getInstance(getActivity()));
+
+        //Create likes helper
+        mLikesHelper = new LikesHelper(getActivity());
+    }
+
     @Nullable
     @Override
     public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
@@ -151,15 +175,6 @@ public class PostsListFragment extends Fragment
      */
     public void show(){
 
-        //Create post helper
-        mPostsHelper = new PostsHelper(getActivity());
-
-        //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;
@@ -292,6 +307,24 @@ public class PostsListFragment extends Fragment
         button.showContextMenu();
     }
 
+    @Override
+    public void onPostLikeUpdate(final Post post, final boolean is_liking) {
+
+        //Save new post information
+        post.setNumberLike(post.getNumberLike() + (is_liking ? 1 : -1));
+        post.setLiking(is_liking);
+
+        //Perform the update in the background
+        new AsyncTask<Void, Void, Boolean>(){
+
+            @Override
+            protected Boolean doInBackground(Void... params) {
+                return mLikesHelper.update(LikesType.POST, post.getId(), is_liking);
+            }
+        }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
+
+    }
+
     @Override
     public void deletePost(final int pos) {
 

app/src/main/java/org/communiquons/android/comunic/client/ui/views/LikeButtonView.java

@@ -4,7 +4,6 @@ import android.content.Context;
 import android.support.annotation.AttrRes;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
-import android.support.annotation.StyleRes;
 import android.util.AttributeSet;
 import android.view.View;
 import android.widget.FrameLayout;
@@ -13,7 +12,6 @@ import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import org.communiquons.android.comunic.client.R;
-import org.communiquons.android.comunic.client.data.utils.StringsUtils;
 import org.communiquons.android.comunic.client.data.utils.UiUtils;
 
 /**
@@ -50,6 +48,11 @@ public class LikeButtonView extends FrameLayout implements View.OnClickListener
      */
     private int numberLikes = 0;
 
+    /**
+     * Like Update listener
+     */
+    private OnLikeUpdateListener mUpdateListener = null;
+
     public LikeButtonView(@NonNull Context context) {
         super(context);
         initView();
@@ -127,6 +130,15 @@ public class LikeButtonView extends FrameLayout implements View.OnClickListener
         return mIsLiking;
     }
 
+    /**
+     * Set like update listener
+     *
+     * @param updateListener The listener for the like update
+     */
+    public void setUpdateListener(OnLikeUpdateListener updateListener) {
+        this.mUpdateListener = updateListener;
+    }
+
     /**
      * Refresh the like view
      */
@@ -163,5 +175,22 @@ public class LikeButtonView extends FrameLayout implements View.OnClickListener
         //Refresh display
         refresh();
 
+        //Call listener (if any)
+        if(mUpdateListener != null)
+            mUpdateListener.OnLikeUpdate(mIsLiking);
+    }
+
+    /**
+     * Likes update listener interface
+     */
+    public interface OnLikeUpdateListener {
+
+        /**
+         * This method is called when an update is done on a like
+         *
+         * @param isLiking New liking status
+         */
+        void OnLikeUpdate(boolean isLiking);
+
     }
 }