MyApplication

package app.jiyun.com.android_day07_greendao.app;

import android.app.Application;

import app.jiyun.com.android_day07_greendao.DaoMaster;

import app.jiyun.com.android_day07_greendao.DaoSession;

public class MyApplication extends Application {

    private static MyApplication mApp;

    private DaoSession mDaoSession;

    public static MyApplication getMyApp() {

        return mApp;

    }

    @Override

    public void onCreate() {

        super.onCreate();

        mApp = this;

        createDataBase();

    }

    private void createDataBase(){

        //创建数据库

        DaoMaster.DevOpenHelper openHelper = new DaoMaster.DevOpenHelper(mApp,"stu");

        //用数据库框架进行包装

        DaoMaster daoMaster = new DaoMaster(openHelper.getWritableDatabase());

        //提供一个Session

        mDaoSession = daoMaster.newSession();

    }

    public DaoSession getDaoSession(){

        return mDaoSession;

    }

}