التعامل مع API في Android

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <androidx.cardview.widget.CardView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10px"
        android:layout_marginBottom="2px">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <TextView
                android:id="@+id/textView"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="TextView"
                android:textSize="20sp"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />
        </androidx.constraintlayout.widget.ConstraintLayout>
    </androidx.cardview.widget.CardView>
</LinearLayout>

public class ListItem {
    private String title;

    public ListItem(String title){
        this.title = title;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }
}

public class MyAdapture extends RecyclerView.Adapter<MyAdapture.ViewHolder> {
    List<ListItem> listItems;
    Context context;

    public MyAdapture(List<ListItem> listItems, Context context) {
        this.listItems = listItems;
        this.context = context;
    }

    @NonNull
    @Override
    public MyAdapture.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.post, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull MyAdapture.ViewHolder holder, int position) {
        ListItem listItem = ListItem.get(position);
        holder.title.setText(listItem.getTitle());
    }

    @Override
    public int getItemCount() {
        return listItems.size();
    }

    public class ViewHolder extends RecyclerView.ViewHolder {
        TextView title;
        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            title = itemView.findViewById(R.id.textView);
        }
    }
}

public class MainActivity extends AppCompatActivity {

    JSONArray posts = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        getPosts();
        new Handler().postDelayed(()-> {
            try {
                connectToRecyclerView();
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }, 5000);
    }

    public void connectToRecyclerView() throws JSONException {
        RecyclerView recyclerView = findViewById(R.id.recyclerview);
        recyclerView.setHasFixedSize(true);
        List<ListItem> listOfPosts = new ArrayList<>();
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        for (int i = 0; i < posts.length(); i++) {
            JSONObject post = posts.getJSONObject(i);
            listOfPosts.add(new ListItem(post.getString("title")));
        }
        MyAdapture myAdapture = new MyAdapture(listOfPosts, this);
        recyclerView.setAdapter(myAdapture);
    }

    public void getPosts(){
        RequestQueue queue = Volley.newRequestQueue(this);;
        StringRequest stringRequest = new StringRequest(Request.Method.GET, "https://jsonplaceholder.typicode.com/posts", response -> {
            try {
                posts = new JSONArray(response);
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }, error -> {
        });
        queue.add(stringRequest);
    }

}

<uses-permission android:name="android.permission.INTERNET"/>