greendao

package com.example.test;

import android.app.Application;
import android.database.sqlite.SQLiteDatabase;

import com.facebook.drawee.backends.pipeline.Fresco;

import bean.DaoMaster;
import bean.DaoSession;

public class App extends Application{
    private static App app;
    DaoSession daoSession;
    @Override
    public void onCreate() {
        super.onCreate();
        app=App.this;
        DaoMaster.DevOpenHelper helper = new DaoMaster.DevOpenHelper(this,"goods",null);
        SQLiteDatabase db = helper.getWritableDatabase();
        DaoMaster daoMaster = new DaoMaster(db);
         daoSession = daoMaster.newSession();
        Fresco.initialize(this);
    }
    public DaoSession setDaoMaster(){
        return daoSession;
    }
    public static App getInstance(){
        return app;
    }
}

//查询

final HomeBeanDao homeBeanDao = App.getInstance().setDaoMaster().getHomeBeanDao();
List<HomeBean> beanList = homeBeanDao.loadAll();

//添加字段

@Entity(nameInDb = "info")
@Id(autoincrement = true)
    Long id;
@Property
    String imgUrl;
@Property
    String title;