Este arquivo é parte do tutorial do Instituto Interaje sobre ListViews: https://goo.gl/X3mduF

DogAdapter.java

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import java.util.List;

import br.com.interaje.projetoListview.R;
import br.com.interaje.projetoListview.models.Dog;

/**
 * Created by rayquaza on 27/07/16.
 */
 // Herdamos de BaseAdapter e implementamos os métodos obrigatórios: getCount, getItem, getItemId, getView.
public class DogAdapter extends BaseAdapter {

    private List<Dog> dogList;
    private Context context;
    private LayoutInflater layoutInflater;

    public DogAdapter(List<Dog> dogList, Context context) {
        this.dogList = dogList;
        this.context = context;
        layoutInflater = LayoutInflater.from(context);
    }

    @Override
    public int getCount() {
        return dogList.size();
    }

    @Override
    public Object getItem(int position) {
        return dogList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return dogList.get(position).getId();
    }

    @Override
    public View getView(int position, View parent, ViewGroup viewGroup) {
        View itemView = layoutInflater.inflate(R.layout.dog_item_layout, viewGroup, false);

        Dog dog = dogList.get(position);

        TextView dogNameTextView = (TextView) itemView.findViewById(R.id.item_dog_name);
        TextView dogAgeTextView = (TextView) itemView.findViewById(R.id.item_dog_age);

        dogNameTextView.setText(dog.getName());
        dogAgeTextView.setText(dog.getAge());

        return itemView;
    }
}