AndroidA02T02 - ListView

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="br.com.comschool.aula02b.MainActivity">

    <Button
        android:text="ArrayAdapter"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/main_activity_array_adapter_button" />

    <Button
        android:text="BaseAdapter"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/main_activity_base_adapter_button" />
</LinearLayout>

array_adapter_activity_item.xml

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

    <TextView
        android:padding="16dp"
        android:text="@string/app_name"
        android:background="@color/colorPrimaryDark"
        android:textColor="@android:color/white"
        android:id="@+id/nome"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

ArrayAdapterActivity.java

package br.com.comschool.aula02b;

import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;

public class ArrayAdapterActivity extends ListActivity {

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

        Contato[] contatos = Contato.getContatos();

        ArrayAdapter adapter = new ArrayAdapter<Contato>(this, R.layout.array_adapter_activity_item, R.id.nome, contatos);
        setListAdapter(adapter);
    }
}

base_adapter_activity_item.xml

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

    <ImageView
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:id="@+id/foto"/>
    <TextView
        android:padding="16dp"
        android:text="@string/app_name"
        android:background="@color/colorPrimaryDark"
        android:textColor="@android:color/white"
        android:id="@+id/nome"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:padding="16dp"
        android:text="@string/app_name"
        android:background="@color/colorPrimary"
        android:textColor="@android:color/white"
        android:id="@+id/email"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>

BaseAdapterActivity.java

package br.com.comschool.aula02b;

import android.app.Activity;
import android.app.ListActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class BaseAdapterActivity extends ListActivity {

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

        Contato[] contatos = Contato.getContatos();

        ContatosBaseAdapter adapter = new ContatosBaseAdapter(this, contatos);
        setListAdapter(adapter);

    }

    class ContatosBaseAdapter extends BaseAdapter {

        private final Activity activity;
        private final Contato[] contatos;

        public ContatosBaseAdapter(Activity activity, Contato[] contatos) {
            this.activity = activity;
            this.contatos = contatos;
        }

        @Override
        public int getCount() {
            return contatos.length;
        }

        @Override
        public Object getItem(int position) {
            return contatos[position];
        }

        @Override
        public long getItemId(int position) {
            return 0;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {

            if(convertView == null) {
                convertView = activity.getLayoutInflater().inflate(
                        R.layout.base_adapter_activity_item,
                        parent, false);
            }

            Contato contato = contatos[position];
            TextView nomeTextView = (TextView) convertView.findViewById(R.id.nome);
            TextView emailTextView = (TextView) convertView.findViewById(R.id.email);
            ImageView fotoImageView = (ImageView) convertView.findViewById(R.id.foto);


            nomeTextView.setText(contato.nome);
            emailTextView.setText(contato.email);
            fotoImageView.setImageResource(contato.foto);

            return convertView;
        }
    }
}

Contato.java

package br.com.comschool.aula02b;

/**
 * Created by Professor2 on 08/10/2016.
 */

public class Contato {

    String nome;
    String email;
    int idade;
    int foto;
    String celular;

    public Contato(String nome, String email, int idade, int foto, String celular) {
        this.nome = nome;
        this.email = email;
        this.idade = idade;
        this.foto = foto;
        this.celular = celular;
    }

    public static Contato[] getContatos() {
        Contato[] contatos = new Contato[2];
        contatos[0] = new Contato("Erick Massa Sprengel", "[email protected]", 27, R.mipmap.ic_launcher, "55 11 996 382 272");
        contatos[1] = new Contato("Erick Massa Sprengel 2", "[email protected]", 27, R.mipmap.ic_launcher, "55 11 996 382 272");
        return contatos;
    }
}

MainActivity.java

package br.com.comschool.aula02b;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends Activity implements View.OnClickListener {

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

        findViewById(R.id.main_activity_array_adapter_button).setOnClickListener(this);
        findViewById(R.id.main_activity_base_adapter_button).setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        Intent intent;
        switch (v.getId()) {
            case R.id.main_activity_array_adapter_button:
                // abrir array adapter
                intent = new Intent(this, ArrayAdapterActivity.class);
                startActivity(intent);
                break;
            case R.id.main_activity_base_adapter_button:
                // abrir base adapter
                intent = new Intent(this, BaseAdapterActivity.class);
                startActivity(intent);
                break;
        }
    }
}