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app/src/main/java/com/ssb/simplitend/articles/ArticlesAdapter.java

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+package com.ssb.simplitend.articles;
+
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.DiffUtil;
+import androidx.recyclerview.widget.ListAdapter;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.bumptech.glide.Glide;
+import com.ssb.simplitend.apputils.AppUtil;
+import com.ssb.simplitend.databinding.ArticleViewHolderBinding;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Locale;
+import java.util.TimeZone;
+
+public class ArticlesAdapter extends ListAdapter<ArticleResult, ArticlesAdapter.ArticleViewHOlder> {
+
+    private final ArticleClickListener articleClickListener;
+
+    private static final DiffUtil.ItemCallback<ArticleResult> DIFF_UTIL = new DiffUtil.ItemCallback<ArticleResult>() {
+        @Override
+        public boolean areItemsTheSame(@NonNull ArticleResult oldItem, @NonNull ArticleResult newItem) {
+            return oldItem.id == newItem.id;
+        }
+
+        @Override
+        public boolean areContentsTheSame(@NonNull ArticleResult oldItem, @NonNull ArticleResult newItem) {
+            return false;
+        }
+    };
+
+    public ArticlesAdapter(@NonNull ArticleClickListener articleClickListener){
+        super(DIFF_UTIL);
+        this.articleClickListener = articleClickListener;
+    }
+
+    @NonNull
+    @Override
+    public ArticleViewHOlder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        ArticleViewHolderBinding binding = ArticleViewHolderBinding.inflate(
+                LayoutInflater.from(parent.getContext()),
+                parent, false);
+        return new ArticleViewHOlder(binding);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ArticleViewHOlder holder, int position) {
+        holder.setData(getItem(position));
+
+        holder.binding.card.setOnClickListener(v -> {
+            articleClickListener.onArticleClick(getItem(position));
+        });
+    }
+
+    public static class ArticleViewHOlder extends RecyclerView.ViewHolder{
+        public ArticleViewHolderBinding binding;
+
+        public ArticleViewHOlder(@NonNull ArticleViewHolderBinding binding) {
+            super(binding.getRoot());
+            this.binding = binding;
+        }
+
+        public void setData(ArticleResult articleResult){
+            if (articleResult == null) return;
+
+            Glide.with(itemView.getContext())
+                    .load(AppUtil.IMAGE_BASE_URL + articleResult.large_image)
+                    .placeholder(android.R.color.darker_gray)
+                    .error(android.R.color.darker_gray)
+                    .into(binding.articleImg);
+
+            if (articleResult.article_title == null){
+                articleResult.article_title = "No title";
+            }
+
+            binding.title.setText(articleResult.article_title);
+
+            if (articleResult.article_author == null){
+                articleResult.article_author = "No author";
+            }
+
+            binding.authorName.setText(articleResult.article_author);
+
+            try {
+                if (articleResult.created_at == null) throw new Exception();
+                // parsing time of created at
+                SimpleDateFormat format = new SimpleDateFormat(
+                        "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
+                format.setTimeZone(TimeZone.getTimeZone("UTC"));
+
+                Date date = format.parse(articleResult.created_at);
+                if (date == null) throw new Exception();
+
+                SimpleDateFormat pretty_format = new SimpleDateFormat("dd MMM yy, HH:mm a", Locale.getDefault());
+                String time = pretty_format.format(date);
+
+                binding.createdAt.setText(time);
+
+            }catch (Exception e){
+                // do nothing
+                String none = "None";
+                binding.createdAt.setText(none);
+            }
+
+        }
+    }
+
+    // interfaces
+    @FunctionalInterface
+    public interface ArticleClickListener{
+        void onArticleClick(ArticleResult articleResult);
+    }
+}