科特林-领域和包裹 [英] kotlin - realm and parcel

问题描述

我用android studio开发了android项目. 我想在Kotlin中使用onSaveInstanceState()保存领域对象. 我的代码是

I develop the android project with android studio. I want to save realm objects using onSaveInstanceState() in kotlin. My code is

@Parcel( implementations = arrayOf(UserRealmProxy::class),
         value = Parcel.Serialization.BEAN,
         analyze = arrayOf(User::class))
open class User : RealmObject() {
    open var name: String? = null

    @ParcelPropertyConverter(ListParcelConverter::class)
    open var Items: RealmList<Item>? = null
}

但是编译时会出现一些错误:

but there are some errors while compiling:

'Unresolved reference: UserRealmProxy'
'An annotation parameter must be a compile-time constant'

当然，因为已经编译了项目，所以UserRealmProxy已经存在. @ParcelPropertyConverter(ListParcelConverter::class)也不起作用. 它会在运行时导致异常:

Sure, UserRealmProxy exists already because already the project has been compiled. also @ParcelPropertyConverter(ListParcelConverter::class) does not work. it causes exception in runtime:

'java.io.NotSerializableException: io.realm.RealmList'

但是此代码在Java中编译良好.

But this code is compiled well in java.

我需要您的帮助.

推荐答案

在我的情况下，当出现以下错误时:'Unresolved reference:UserRealmProxy'.如果我有此包:com.path.model.Album，则必须使用:

In my case, when I have this error: 'Unresolved reference: UserRealmProxy'. If I have this package: com.path.model.Album, and I have to use:

import io.realm.com_path_model_AlbumRealmProxy

...
@Parcel(implementations = arrayOf(com_path_model_AlbumRealmProxy::class)

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