AVA2-DESENVOLVIMENTO DE APLICAÇÕES MOBILE E DISTRIBUÍDAS

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CURSO
 GESTÃO DE TECNOLOGIA DA INFORMAÇÃO
DISCIPLINA
DESENVOLVIMENTO DE APLICAÇÕES MOBILE E DISTRIBUÍDAS
PROFESSOR
EDGAR AUGUSTO GONÇALVES GURGEL DO AMARAL
ALUNO
DANIEL MALTEZ PORTELLA
MATRICULA: 20203301310
TEMA: 
Desenvolvimento de um aplicativo com a persistência de dados com o uso do SQLite no 
Android
Rio de Janeiro, 01 de Setembro de 2022.
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 tools:context=".MainActivity">
 <android.support.constraint.ConstraintLayout
 android:layout_width="0dp"
 android:layout_height="0dp"
 android:layout_marginStart="1dp"
 android:layout_marginTop="1dp"
 android:layout_marginEnd="1dp"
 android:layout_marginBottom="1dp"
 app:layout_constraintBottom_toBottomOf="parent"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintStart_toStartOf="parent"
 app:layout_constraintTop_toTopOf="parent">
 <LinearLayout
 android:id="@+id/lay_Main"
 android:layout_width="388dp"
 android:layout_height="343dp"
 android:clickable="false"
 android:orientation="vertical"
 app:layout_constraintBottom_toBottomOf="parent"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintStart_toStartOf="parent"
 app:layout_constraintTop_toTopOf="parent">
 <TextView
 android:id="@+id/main_txtNome"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_marginTop="50dp"
 android:layout_weight="0"
 android:text="@string/txt_nome" />
 <EditText
 android:id="@+id/main_edtNome"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_weight="0"
 android:ems="10"
 android:hint="@string/edt_nome"
 android:inputType="textPersonName" />
 <TextView
 android:id="@+id/main_txtTelefone"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_weight="0"
 android:text="@string/txt_telefone" />
 <EditText
 android:id="@+id/main_edtTelefone"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_weight="0"
 android:ems="10"
 android:hint="@string/edt_telefone"
 android:inputType="textPersonName" />
 <LinearLayout
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_marginStart="20dp"
 android:layout_marginEnd="20dp"
 android:layout_weight="0"
 android:animationCache="true"
 android:baselineAligned="false"
 android:orientation="horizontal"
 android:paddingTop="10dp">
 <Button
 android:id="@+id/main_btnCancelar"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_marginStart="40dp"
 android:layout_marginTop="5dp"
 android:layout_weight="0"
 android:backgroundTint="#D67168"
 android:text="@string/btn_limpar"
 android:textAlignment="center" />
 <Button
 android:id="@+id/main_btnSalvar"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_marginStart="70dp"
 android:layout_marginTop="5dp"
 android:layout_marginEnd="30dp"
 android:layout_weight="0"
 android:backgroundTint="#26E0B6"
 android:drawableLeft="@android:drawable/ic_input_add"
 android:text="@string/btn_salvar"
 android:textAlignment="center" />
 </LinearLayout>
 <LinearLayout
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:layout_marginStart="20dp"
 android:layout_marginEnd="20dp"
 android:orientation="horizontal"
 android:paddingTop="10dp">
 <Button
 android:id="@+id/main_btnListarContatos"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_marginStart="10dp"
 android:layout_marginTop="5dp"
 android:layout_marginEnd="10dp"
 android:layout_weight="0"
 android:backgroundTint="#80B4F3"
 android:drawableRight="@android:drawable/ic_menu_slideshow"
 android:text="Ver Lista de Contatos" />
 </LinearLayout>
 </LinearLayout>
 </android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>
MainActivity.java
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.unipac.sqlite_persistenciadados.DAO.ContatoDAO;
import com.unipac.sqlite_persistenciadados.Models.Contato;
public class MainActivity extends AppCompatActivity {
 private EditText varNome;
 private EditText varTelefone;
 private Button bSalvar;
 private Button bVerContatos;
 private Button bLimpar;
 private long idContato;
 Contato contato = new Contato();
 @Override
 protected void onCreate(final Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 varNome = findViewById(R.id.main_edtNome);
 varTelefone = findViewById(R.id.main_edtTelefone);
 bSalvar = findViewById(R.id.main_btnSalvar);
 bLimpar = findViewById(R.id.main_btnCancelar);
 bVerContatos = findViewById(R.id.main_btnListarContatos);
 bSalvar.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View v) {
 ContatoDAO contatoDAO = new ContatoDAO(getBaseContext());
 String nome = varNome.getText().toString();
 String telefone = varTelefone.getText().toString();
 Contato contato = new Contato(nome, telefone);
 if(!nome.isEmpty() && !telefone.isEmpty()){
 contatoDAO.salvar(contato);
 Toast.makeText(getApplicationContext(), "Salvando novo Contato", 
Toast.LENGTH_SHORT).show();
// bLimpar.callOnClick();
 }
 }
 });
 bLimpar.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View v) {
 varNome.setText("");
 varTelefone.setText("");
 varNome.requestFocus();
 }
 });
 bVerContatos.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View v) {
 ContatoDAO contatoDAO = new ContatoDAO(getBaseContext());
// long id = contato.getId();String nome = varNome.getText().toString();
 String telefone = varTelefone.getText().toString();
 Contato contato = new Contato(nome,telefone);
 if(!contatoDAO.verificarSeContatoExiste(telefone)){
 contatoDAO.salvar(contato);
 Toast.makeText(getApplicationContext(), "Contato 
Cadastrado!",Toast.LENGTH_SHORT).show();
 }
 Intent intent = new Intent(MainActivity.this, ListaContatosActivity.class);
 intent.putExtra("idContatoSelec", contato.getId());
 startActivity(intent);
 }
 });
 }}
activity_lista_contatos.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 tools:context=".ListaContatosActivity">
 <ListView
 android:id="@+id/LV_ListarContatos"
 android:layout_width="381dp"
 android:layout_height="598dp"
 app:layout_constraintBottom_toBottomOf="parent"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintStart_toStartOf="parent"
 app:layout_constraintTop_toTopOf="parent">
 </ListView>
 <LinearLayout
 android:id="@+id/ll_botton"
 android:layout_width="413dp"
 android:layout_height="61dp"
 android:layout_marginEnd="8dp"
 android:orientation="horizontal"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintStart_toStartOf="parent"
 app:layout_constraintTop_toBottomOf="@+id/LV_ListarContatos">
 <Button
 android:id="@+id/lc_btnVoltar"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_marginStart="30dp"
 android:layout_marginEnd="30dp"
 android:layout_marginBottom="10dp"
 android:layout_weight="1"
 android:backgroundTint="#E7AE48"
 android:contextClickable="false"
 android:text="Voltar"
 android:textAlignment="center" />
 </LinearLayout>
</android.support.constraint.ConstraintLayout>
ListaContatosActivity.java
mport android.app.ListActivity;
import android.content.DialogInterface;
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.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;
import com.unipac.sqlite_persistenciadados.Adapter.ContatoAdapter;
import com.unipac.sqlite_persistenciadados.DAO.ContatoDAO;
import com.unipac.sqlite_persistenciadados.Models.Contato;
import java.util.ArrayList;
import java.util.Collections;
public class ListaContatosActivity extends AppCompatActivity {
 private ArrayList<Contato> listadeContatos = new ArrayList<>();
 private ContatoDAO contatoDAO = null;
 private ArrayAdapter adapter;
 private ListView listContato;
 private long idContatoAtivo;
 Button bVoltar;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_lista_contatos);
 bVoltar = (Button) findViewById(R.id.lc_btnVoltar);
 contatoDAO = new ContatoDAO(getBaseContext());
 contatoDAO = new ContatoDAO(getBaseContext());
 Bundle extras = getIntent().getExtras();
 if (extras != null) {
 idContatoAtivo = extras.getLong("idContatoAtivo");
 }
// usuario = usuarioDAO.buscarPorId(idUsuarioAtivo);
// if(!contatoDAO.buscarPorId(idContatoAtivo).isAdmin()) {
// le_bt_novoEvento.setVisibility(View.INVISIBLE);
// }
 listContato = (ListView) findViewById(R.id.LV_ListarContatos);
 listContato.setOnItemClickListener(new AdapterView.OnItemClickListener() {
 @Override
 public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
 Intent intent2 = new Intent(ListaContatosActivity .this, ListaContatosActivity.class);
 Contato contatoSelecionado = (Contato) listContato.getItemAtPosition(position);
 intent2.putExtra("contatoSelec", contatoSelecionado);
 intent2.putExtra("idContatoAtivo", idContatoAtivo);
 startActivity(intent2);
 }
 });
 listContato.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
 @Override
 public boolean onItemLongClick(AdapterView<?> adapterView, View view, int position, long l) {
 Intent intent2 = new Intent(ListaContatosActivity.this, ListaContatosActivity.class);
 Contato contato = new Contato();
 Contato contatoSelecionado = (Contato) listContato.getItemAtPosition(position);
 intent2.putExtra("contatoSelec", contatoSelecionado);
 intent2.putExtra("idUsuarioAtivo", idContatoAtivo);
 startActivity(intent2);
 return true;
 }
 });
 }
 @Override
 protected void onResume() {
 super.onResume();
 listadeContatos = contatoDAO.buscarTodos();
 Collections.sort(listadeContatos);
 if(!listadeContatos.isEmpty()){
 adapter = new ContatoAdapter(this, listadeContatos);
 listContato.setAdapter(adapter);
 } else {
 Toast.makeText(getApplicationContext(), "Não há contatos cadastrados!", Toast.LENGTH_LONG).show();
 }
 }
}
	TEMA:
	Desenvolvimento de um aplicativo com a persistência de dados com o uso do SQLite no Android