Algunas Plantillas para Android Studio

CustomArrayAdapter.java

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

import java.util.List;

/* Referencia:
https://github.com/vectorhead2015/android-custom-arrayadapter-recyclerview/blob/master/app/src/main/java/demo/example/com/customarrayadapter/adapter/AndroidFlavorAdapter.java
*/

public class ${NAME}Adapter extends ArrayAdapter<${NAME}> {

    private Context     mContext;
    private List<${NAME}> m${NAME}s;

    /**
     * This is our own custom constructor (it doesn't mirror a superclass constructor).
     * The context is used to inflate the layout file, and the List is the data we want
     * to populate into the lists
     *
     * @param context        The current context. Used to inflate the layout file.
     * @param androidFlavors A List of AndroidFlavor objects to display in a list
     */
    public ${NAME}Adapter(Context context, List<${NAME}> items) {
        // Here, we initialize the ArrayAdapter's internal storage for the context and the list.
        // the second argument is used when the ArrayAdapter is populating a single TextView.
        // Because this is a custom adapter, it is not going to use this second argument, 
        // so it can be any value. Here, we used 0.
        super(context, 0, items);

        mContext = context;
        m${NAME}s = items;
    }

    // Actualizar según los items de layout de cada elemento de ListView
    private static class ViewHolder {
        protected ImageView imgMovie;
        protected TextView  tvName;
        protected TextView  tvGenre;
    }
    
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder viewHolder;

        if (convertView == null) {
            // Inflate the layout (reemplazar "mLayoutId" con el layout respectivo)
            convertView = LayoutInflater.from(mContext).inflate(mLayoutId, parent, false);

            // create the view holder
            viewHolder = new ViewHolder();
            //------- reemplazar según nuestro xml que representa una fila del ListView
            viewHolder.imgMovie = (ImageView) convertView.findViewById(R.id.imgMovie);
            viewHolder.tvName = (TextView) convertView.findViewById(R.id.tvName);
            viewHolder.tvGenre = (TextView) convertView.findViewById(R.id.tvGenre);

            convertView.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) convertView.getTag();
        }

        // Set the movie data
        ${NAME} item = m${NAME}s.get(position);

        if (item != null) {
            if (viewHolder.imgMovie != null) {
                viewHolder.imgMovie.setImageResource(item.getImageId());
            }
            if (viewHolder.tvName != null) {
                viewHolder.tvName.setText(item.getName());
            }
            if (viewHolder.tvGenre != null) {
                viewHolder.tvGenre.setText(item.getGenre());
            }
        }

        return convertView;
    }

}

GreenDaoManager.java

public class GreenDaoManager {

    private static GreenDaoManager mInstance;
    private DaoMaster mDaoMaster;
    private DaoSession mDaoSession;

    public static GreenDaoManager getInstance() {
        if (mInstance == null) {
            mInstance = new GreenDaoManager();
        }
        return mInstance;
    }

    public GreenDaoManager() {
        // Debemos crear una clase que implemente Application llamada MyApp
        DaoMaster.DevOpenHelper devOpenHelper = new DaoMaster.DevOpenHelper(MyApp.getContext(), "${PROJECT_NAME}-db", null);
        mDaoMaster = new DaoMaster(devOpenHelper.getWritableDatabase());
        mDaoSession = mDaoMaster.newSession();
    }

    public DaoMaster getMaster() {
        return mDaoMaster;
    }

    public DaoSession getSession() {
        return mDaoSession;
    }

    public DaoSession getNewSession() {
        mDaoSession = mDaoMaster.newSession();
        return mDaoSession;
    }

    /* Actualizar esta parte según los DAO que tengamos 
    public CustomerDao getCustomerDao(){
        return mDaoSession.getCustomerDao();
    }

    public OrderDao getOrderDao(){
        return mDaoSession.getOrderDao();
    }
    */
}

MyAplication_(for_greenDao).java

public class ${NAME} extends Application {

    private static Context mContext;

    @Override
    public void onCreate() {
        super.onCreate();
        mContext = getApplicationContext();
        GreenDaoManager.getInstance();
    }

    public static Context getContext() {
        return mContext;
    }

    public static void setContext(Context mContext) {
        ${NAME}.mContext = mContext;
    }
}