MusicasActivity.java

package com.example.android.appmusica;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;

import java.util.ArrayList;

public class MusicasActivity extends AppCompatActivity implements MusicAdapter.OnOpenMusicListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.list);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        final ArrayList<Music> musics = new ArrayList<Music>();


        musics.add(new Music("Black", "Pearl Jam"));
        musics.add(new Music("Stormy May Day", "ACDC"));
        musics.add(new Music("Ouro Raro", "Haikaiss"));
        musics.add(new Music("Another Brick in the Wall", "Pink Floyd"));
        musics.add(new Music("A Praga", "Haikaiss"));
        musics.add(new Music("Maquiavélico", "MC Lan"));
        musics.add(new Music("Through the Valley", "Shawn James"));
        musics.add(new Music("Rap Lord", "Haikaiss"));
        musics.add(new Music("Highway to Hell", "ACDC"));
        musics.add(new Music("Hoje Cedo", "Emicida e Pitty"));
        musics.add(new Music("Pra não dizer que não falei do ódio", "Projota"));
        musics.add(new Music("TheCypherDeffect", "DAMASSACLAN"));
        musics.add(new Music("Negro Drama", "Racionais"));
        musics.add(new Music("Múmias", "Biquini Cavadão"));
        musics.add(new Music("Último Dia", "Pregador Luo"));
        musics.add(new Music("Distopia", "Scalene"));
        musics.add(new Music("Vida Loka pt 1", "Racionais"));
        musics.add(new Music("Vida Loka pt 2", "Racionais"));
        musics.add(new Music("Pumped up Kicks", "Foster The People"));
        musics.add(new Music("Supernova", "Malta"));
        musics.add(new Music("Muita Treta", "Pregador Luo e Apocalipse 16"));
        musics.add(new Music("Perigo Constante", "Thiagão e os Kamikazes do Gueto"));
        musics.add(new Music("We gonna fly", "Trium e Tribo da Periferia"));

        MusicAdapter adapter = new MusicAdapter(this, musics, this);

        ListView listView = (ListView) findViewById(R.id.list);
        listView.setAdapter(adapter);

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View arg1, int position, long arg3) {
                String data = (String) parent.getItemAtPosition(position);
                Log.v("Valor", "" + data);
            }
        });

    }

    @Override
    public void onClick(Music music) {
        //TODO use an intent to show the details of this music
    }
}