首先，Parcelable是支持序列化到本地的，可以搜下Parcel.marshall方法。
Serializable是通用的序列化机制的，将数据存储在磁盘，可以做到有限持久化保存，文件的生命周期不受程序影响，Parcelable的序列化操作完全由底层实现，不同版本的Android实现方式可能不相同，所以不能进行持久化存储。
参考：Parcel.html
Parcel is not a general-purpose serialization mechanism. This class (and the corresponding Parcelable API for placing arbitrary objects into a Parcel) is designed as a high-performance IPC transport. As such, it is not appropriate to place any Parcel data in to persistent storage: changes in the underlying implementation of any of the data in the Parcel can render older data unreadable.
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