写有字符串枚举包裹 [英] Write enum with String to parcel

问题描述

我Parcelable枚举是这样的：

I had Parcelable enum like this:

 public enum Option implements Parcelable {

    DATA_BASE, TRIPS, BIG_PHOTOS,
    OLD_PHOTOS, FILTERS_IMAGES,
    CATEGORIES_IMAGES, PAGES,
    SOUNDS, PUBLIC_TRANSPORT, MAPS;        

    public static final Parcelable.Creator<Option> CREATOR = new Parcelable.Creator<Option>() {

        public Option createFromParcel(Parcel in) {
            return Option.values()[in.readInt()];
        }

        public Option[] newArray(int size) {
            return new Option[size];
        }

    };

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel out, int flags) {
        out.writeInt(ordinal());
    }
}

现在我修改了它，它看起来像：

Now I modified it and it looks like:

 public enum Option implements Parcelable {

    DATA_BASE("Database"), TRIPS("Trips"), BIG_PHOTOS("BigPhotos"),
    OLD_PHOTOS("OldPhotos"), FILTERS_IMAGES("FiltersImages"),
    CATEGORIES_IMAGES("CategoriesImages"), PAGES("Pages"),
    SOUNDS("Sounds"), PUBLIC_TRANSPORT("PublicTransport"), MAPS("Maps");

    private String option;

    Option(String option){
        this.option = option;
    }

    public String getName(){
        return option;
    }

    public static final Parcelable.Creator<Option> CREATOR = new Parcelable.Creator<Option>() {

        public Option createFromParcel(Parcel in) {
            //...
        }

        public Option[] newArray(int size) {
            //...
        }

    };

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel out, int flags) {
        //...
    }
}

我应该如何实现writeToParcel（），createFromParcel（）和newArray（）INT此枚举？我需要通过额外的传递的意图。

How should I implement writeToParcel(), createFromParcel() and newArray() int this Enum? I need that to pass it through extra in intent.

推荐答案

我解决了它是：

public enum Option implements Parcelable {

    DATA_BASE("Database"), TRIPS("Trips"), BIG_PHOTOS("BigPhotos"),
    OLD_PHOTOS("OldPhotos"), FILTERS_IMAGES("FiltersImages"),
    CATEGORIES_IMAGES("CategoriesImages"), PAGES("Pages"),
    SOUNDS("Sounds"), PUBLIC_TRANSPORT("PublicTransport"), MAPS("Maps");

    private String option;

    Option(String option){
        this.option = option;
    }

    public String getName(){
        return option;
    }

    private void setOption(String option){
        this.option = option;
    }

    public static final Parcelable.Creator<Option> CREATOR = new Parcelable.Creator<Option>() {

        public Option createFromParcel(Parcel in) {
            Option option = Option.values()[in.readInt()];
            option.setOption(in.readString());
            return option;
        }

        public Option[] newArray(int size) {
            return new Option[size];
        }

    };

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel out, int flags) {
        out.writeInt(ordinal());
        out.writeString(option);
    }
}

这篇关于写有字符串枚举包裹的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！