HomeActivity

package com.hpiaia.gestorpro;

import android.content.Intent;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;

import com.android.volley.NetworkResponse;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.Volley;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.util.List;

public class HomeActivity extends AppCompatActivity {

    public User user;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home);

        Intent intent = getIntent();
        Integer id = intent.getIntExtra("id", 0);
        String name = intent.getStringExtra("name");
        String email = intent.getStringExtra("email");
        String username = intent.getStringExtra("username");
        String jwt = intent.getStringExtra("jwt");

        this.user = new User(id, name, email, username, jwt);

        final TextView uName = (TextView) findViewById(R.id.uName);
        final TextView uEmail = (TextView) findViewById(R.id.uEmail);
        final TextView uUsername = (TextView) findViewById(R.id.uUsername);
        final Button btnLogout = (Button) findViewById(R.id.btnLogout);

        uName.setText(user.getName());
        uEmail.setText(user.getEmail());
        uUsername.setText(user.getUsername());

        btnLogout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                user.setId(0);
                user.setName("");
                user.setUsername("");
                user.setEmail("");
                user.setJwt("");

                Intent intent = new Intent(HomeActivity.this, LoginActivity.class);
                HomeActivity.this.startActivity(intent);
            }
        });
    }

    @Override
    protected void onStart() {
        super.onStart();

        Response.Listener<String> responseListener = new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                try {

                    JSONArray array = new JSONArray(response);

                    ListView lst = (ListView) findViewById(R.id.listView);

                    ArrayAdapter<String> adp = new ArrayAdapter<String>(HomeActivity.this, android.R.layout.simple_list_item_1);
                    lst.setAdapter(adp);

                    for (int i = 0; i < array.length(); i++) {
                        JSONObject row = array.getJSONObject(i);

                        adp.add(row.getString("title"));
                    }

                } catch (JSONException e) {
                    e.printStackTrace();

                    AlertDialog.Builder builder = new AlertDialog.Builder(HomeActivity.this);
                    builder.setMessage("Falha ao buscar projetos").create().show();
                }
            }
        };

        Response.ErrorListener errorListener = new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                NetworkResponse response = error.networkResponse;

                if (response.statusCode == 402) {
                    AlertDialog.Builder builder = new AlertDialog.Builder(HomeActivity.this);
                    builder.setMessage("Erro 402.").create().show();
                } else {
                    AlertDialog.Builder builder = new AlertDialog.Builder(HomeActivity.this);
                    builder.setMessage("Falha ao buscar projetos").create().show();
                }
            }
        };

        GetProjectsRequest request = new GetProjectsRequest(user, responseListener, errorListener);
        RequestQueue queue = Volley.newRequestQueue(HomeActivity.this);
        queue.add(request);
    }
}