MVVM 中 Model 包含了需持久化和不需持久化两种,应该怎么设计? - V2EX
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ethancheung1990
V2EX    iDev

MVVM 中 Model 包含了需持久化和不需持久化两种,应该怎么设计?

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  •   ethancheung1990 2017-05-28 17:19:19 +08:00 4405 次点击
    这是一个创建于 3138 天前的主题,其中的信息可能已经有所发展或是发生改变。

    目前项目用的 swift,Model 打算用 struct 来做,可是涉及到一个问题是有些数据需要持久化,用 CoreData,请问直接应该怎么配合起来,或者有什么更好的好的方案可以提供?谢谢!

    3 条回复    2017-05-28 23:16:11 +08:00
    66450146
        1
    66450146  
       2017-05-28 17:45:28 +08:00   1
    View Model 需要操作 Core Data,意味着 Core Data 的信息一定是会暴露给 View Model 的

    重点在于不要把 Core Data 的信息暴露给 Controller,具体操作起来只要 View Model 的创建过程不在 Controller,最后直接给 Controller 传递在 UI 上展示的数据( string, color, etc.)而不是整个 Model 就行了
    NxiJSiOS
        2
    NxiJSiOS  
       2017-05-28 21:02:51 +08:00
    不考虑下 Realm?
    iYu
        3
    iYu  
       2017-05-28 23:16:11 +08:00
    不考虑下 Realm?
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