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iOS CoreData 开发

发布时间:2016-02-15 01:00:06
新年新气象,曾经的妹子结婚了,而光棍的我决定书写博客~ 废话结束。本人不爱使用第三方的东东,喜欢原汁原味的官方版本,本次带来CoreData数据存储篇~ 创建应用勾上Use Core Data,不勾也行,后面再添加上去一样的点击coredata文件,look下添加实体,点击下 ...

新年新气象,曾经的妹子结婚了,而光棍的我决定书写博客~ 废话结束。

本人不爱使用第三方的东东,喜欢原汁原味的官方版本,本次带来CoreData数据存储篇~

 

创建应用

iOS CoreData 开发

勾上Use Core Data,不勾也行,后面再添加上去一样的

iOS CoreData 开发

添加实体,点击下面的Add Entity即可,或者通过菜单操作,效果一样。

iOS CoreData 开发

 

创建一个实体类

 

iOS CoreData 开发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

点击Create NSManagedObject Subclass ....,然后选择我们的User,生成代码

iOS CoreData 开发

 

写代码之前,先来点介绍吧,主要涉及到下面三个东东

1、Managed Object Model , 理解成数据库吧,存储了Entity,就是你要存储的东西

2、Persistent Store Coordinate, 理解成数据库连接吧,里面存放了数据存储到具体的文件等等信息

3、Managed Object Context, 数据上下文,基本上所有的操作都是通过这个的。

 

下面进入写代码状态:

 上面三个对象,一个不可少,所以,先来初始化之类的操作吧

 

1 ///定义三个属性2 3 4 @property(strong,nonatomic) NSManagedObjectModel *cdModel;5 @property(strong,nonatomic) NSManagedObjectContext *cdContext;6 @property(strong,nonatomic) NSPersistentStoreCoordinator *cdCoordinator;

 

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原标题:iOS CoreData 开发

关键词:IOS

IOS
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