kotlinでparcelable

Question

ArrayList<Any>にparcelableを実装する方法が分かりません。
作成したリストの中にはString型と独自に作成したクラス(UploadedItem)が入っています。
String型かUploadedItem型から複数のデータをリストに格納して画面遷移したいのですがうまくできません。
下記のコードはParcelable Code Generator(for kotlin)を使って作成しました。

class Images : Parcelable {
    var selectedImages: ArrayList<Any> = ArrayList()

    override fun toString(): String {
        return "Images(selectedImages=$selectedImages)"
    }

    companion object {
        @JvmField val CREATOR: Parcelable.Creator<Images> = object : Parcelable.Creator<Images> {
            override fun createFromParcel(source: Parcel): Images = Images(source)
            override fun newArray(size: Int): Array<Images?> = arrayOfNulls(size)
        }
    }

    constructor(source: Parcel) : this(
         //ここに何を記述すればいいか分かりません
         //No value passed for parameter source(パラメータソースに渡された値はありません)と表示されています。
    )

    override fun describeContents() = 0

    override fun writeToParcel(dest: Parcel, flags: Int) {}
}

class UploadedItem : Parcelable {

    override fun equals(obj: Any?): Boolean {
        return obj is UploadedItem && obj.hashCode() == this.hashCode()
    }

    override fun hashCode(): Int {
        return if (localFile != null) localFile!!.absolutePath.hashCode() else uploadId.toInt()
    }

    val extension: String
        get() {
            if (this.type != null) {
                if (this.type!!.contains("uploadItem")) {
                    if (this.type!!.contains("jpeg")) {
                        return "jpg"
                    } else if (this.type!!.contains("gif")) {
                        return "gif"
                    } else if (this.type!!.contains("png")) {
                        return "png"
                    }
                }
            }
            return "jpg"
        }

    var uploadId: Long = 0
    var thumbUrl: String? = null
    var imageUrl: String? = null
    var originalUrl: String? = null
    var type: String? = null
    var size: Int = 0
    var width: Int = 0
    var height: Int = 0
    var latitude: Double = 0.toDouble()
    var longitude: Double = 0.toDouble()
    var altitude: String? = null
    var comment: String? = null
    var takenTime: String? = null
    var uploadTime: String? = null
    var uploader: User? = null
    var localFile: File? = null

    constructor(localFile: File) {
        this.localFile = localFile
    }

    override fun toString(): String {
        return "UploadedItem{" +
                "uploadId=" + uploadId +
                ", thumbUrl='" + thumbUrl + '\'' +
                ", imageUrl='" + imageUrl + '\'' +
                ", originalUrl='" + originalUrl + '\'' +
                ", type='" + type + '\'' +
                ", size=" + size +
                ", width=" + width +
                ", height=" + height +
                ", latitude=" + latitude +
                ", longitude=" + longitude +
                ", altitude='" + altitude + '\'' +
                ", comment='" + comment + '\'' +
                ", takenTime='" + takenTime + '\'' +
                ", uploadTime='" + uploadTime + '\'' +
                ", uploader=" + uploader +
                ", localFile=" + localFile +
                '}'
    }

    constructor() {}

    override fun describeContents(): Int {
        return 0
    }

    override fun writeToParcel(dest: Parcel, flags: Int) {
        dest.writeLong(this.uploadId)
        dest.writeString(this.thumbUrl)
        dest.writeString(this.imageUrl)
        dest.writeString(this.originalUrl)
        dest.writeString(this.type)
        dest.writeInt(this.size)
        dest.writeInt(this.width)
        dest.writeInt(this.height)
        dest.writeDouble(this.latitude)
        dest.writeDouble(this.longitude)
        dest.writeString(this.altitude)
        dest.writeString(this.comment)
        dest.writeString(this.takenTime)
        dest.writeString(this.uploadTime)
        dest.writeParcelable(this.uploader, flags)
        dest.writeSerializable(this.localFile)
    }

    protected constructor(`in`: Parcel) {
        this.uploadId = `in`.readLong()
        this.thumbUrl = `in`.readString()
        this.imageUrl = `in`.readString()
        this.originalUrl = `in`.readString()
        this.type = `in`.readString()
        this.size = `in`.readInt()
        this.width = `in`.readInt()
        this.height = `in`.readInt()
        this.latitude = `in`.readDouble()
        this.longitude = `in`.readDouble()
        this.altitude = `in`.readString()
        this.comment = `in`.readString()
        this.takenTime = `in`.readString()
        this.uploadTime = `in`.readString()
        this.uploader = `in`.readParcelable<User>(User::class.java.getClassLoader())
        this.localFile = `in`.readSerializable() as? File
    }

    companion object {

        val TAG = "Upload"

        @JvmField
        val CREATOR: Parcelable.Creator<UploadedItem> = object : Parcelable.Creator<UploadedItem> {
            override fun createFromParcel(source: Parcel): UploadedItem {
                return UploadedItem(source)
            }

            override fun newArray(size: Int): Array<UploadedItem?> {
                return arrayOfNulls(size)
            }
        }
    }
}

constructorに何を記述すべきなのか教えてください。

Answer 1

class Images : Parcelable {
    var selectedImages: ArrayList<out Parcelable> = ArrayList()

    override fun toString(): String {
        return "Images(selectedImages=$selectedImages)"
    }

    companion object {
        @JvmField val CREATOR: Parcelable.Creator<Images> = object : Parcelable.Creator<Images> {
            override fun createFromParcel(source: Parcel): Images = Images(source)
            override fun newArray(size: Int): Array<Images?> = arrayOfNulls(size)
        }
    }

    constructor(source: Parcel) {
        selectedImages = source.createTypedArrayList(CREATOR)
    }

    override fun describeContents() = 0

    override fun writeToParcel(dest: Parcel, flags: Int) {
        dest.writeTypedList(selectedImages)
    }
}

writeToParcelで書き込んで
コンストラクタで読み込むのが基本で
Parcelableを含んだクラスの配列でないと書き込み及び読み込みができないはずです

Comments

[quu]

回答ありがとうございます。
Any型はParcelableにできないと聞いたことがあるのですがどうなのでしょうか?

Answer 2

constructorに読み込み処理、writeToParcel()に書き込み処理を書くのでは？

Comments

[quu]

回答ありがとうございます。
もしよろしければもう少し具体的に教えていただけないでしょうか。

[fuzzball]

ちょっとググっただけなので。
http://qiita.com/kazhida/items/a085d5c662ce03bd5696