classcastException尝试在自定义对象阵列上进行读取时

Question

我试图实现包裹而不是连续化，因为它应该更有效。从我的主动脉中，我想将消息对象传递给另一个活动，我的类消息包含其他类。如果我遇到这个错误，我相信我会遇到更多的错误，但是现在，当我尝试运行我的应用程序时，我会得到

这是我的消息类：

import java.util.ArrayList;

import android.os.Parcel;
import android.os.Parcelable;

public class Message implements Parcelable {

    int id;
    int space_id;
    String text;
    String html;
    String created_at;
    int[] comments;
    boolean is_liked;
    int[] liked_by;
    int[] starred_by;
    boolean is_starred;
    boolean is_followed;
    int[] followed_by;
    ArrayList<AttachmentsData> attachments;
    String url;
    int[] tags;
    boolean is_system;

    public User created_by;
    public Permissions persmissions;
    public Embed embed;
    public Tokens[] tokens;


    /** Parcelable **/
    public Message(Parcel in) {
        readFromParcel(in);
    }

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

    @Override
    public void writeToParcel(Parcel dest, int flags) { 
        dest.writeInt(id);
        dest.writeInt(space_id);
        dest.writeString(text);
        dest.writeString(html);
        dest.writeString(created_at);
        dest.writeIntArray(comments);
        dest.writeInt(is_liked ? 1 : 0);
        dest.writeIntArray(liked_by);
        dest.writeIntArray(starred_by);
        dest.writeInt(is_starred ? 1 : 0);
        dest.writeInt(is_followed ? 1 : 0);
        dest.writeIntArray(followed_by);
        dest.writeList(attachments);
        dest.writeString(url);
        dest.writeIntArray(tags);
        dest.writeInt(is_system ? 1 : 0);

        dest.writeParcelable(created_by, flags);
        dest.writeParcelable(persmissions, flags);
        dest.writeParcelable(embed, flags);
        dest.writeParcelableArray(tokens, flags);
    }

    private void readFromParcel(Parcel in) {
        id = in.readInt();
        space_id = in.readInt();
        text = in.readString();
        html = in.readString();
        created_at = in.readString();
        //in.readIntArray(comments);
        comments = in.createIntArray();
        is_liked = in.readInt() == 0;
        //in.readIntArray(liked_by);
        liked_by = in.createIntArray();
        //in.readIntArray(starred_by);
        starred_by = in.createIntArray();
        is_starred = in.readInt() == 0;
        is_followed = in.readInt() == 0;
        //in.readIntArray(followed_by);
        followed_by = in.createIntArray();
        in.readList(attachments, AttachmentsData.class.getClassLoader());
        url = in.readString();
        //in.readIntArray(tags);
        tags = in.createIntArray();
        is_system = in.readInt() == 0;

        created_by = in.readParcelable(User.class.getClassLoader());
        persmissions = in.readParcelable(Permissions.class.getClassLoader());
        embed = in.readParcelable(Embed.class.getClassLoader());
        tokens = in.readParcelable(Tokens.class.getClassLoader();
    }   

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

        public Message createFromParcel(Parcel in) {
            return new Message(in);
        }

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



    /** Getters and setters, I'll spare you these **/

 }

这是我遇到的错误：

致命例外：main java.lang.runtimeException：无法启动活动componentInfo {com.example.incentive.incentive/com.example.incentive.comments}：java.lang.classcastexexception：android.os.os.os.os.parcelcelable []不能是com。 example.incentive.messagemodel.tokens [] at android.app.acpitivitythread.performlaunchactivity（activityThread.java：1967）atroid.app.App.App.acptivitythread.handlelainchread.handlelaunchacnactivity（activityThread.java.java：1992：1992） 。 137）在android.app.act.activitythread.main（activityThread.java:4441）java.lang.reflect.method.method.invokenative（本机方法）at Java.lang.reflect.reflect.method.method.invoke.invoke（method.java：511） 。 （本机方法）由以下原因引起： java：94）at com.example.incentive.messagemodel.message。 。 （parcel.java：204）atnoid.os.bundle.unparcel（bundle.java：223）at android.os.bundle.getParcelable（bundle.java：1158）at com.example.incample.incente.incenter.incenter.incentive.comments.oncreate.oncreate（评论。 java:67) at android.app.Activity.performCreate(Activity.java:4465) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1931) . ..更多

我认为现在相关的是：

引起的：

因此，我可能做错了：tokens = in.ReadParcelable（tokens.class.getClassLoader（）;

这是我的令牌级：

import android.os.Parcel;
import android.os.Parcelable;

public class Tokens implements Parcelable {

    String type;
    String value;
    int start;
    int end;


    /** Parcelable related **/
    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeString(type);
        dest.writeString(value);
        dest.writeInt(start);
        dest.writeInt(end);
    }

    private Tokens(Parcel in) {
        type = in.readString();
        value = in.readString();
        start = in.readInt();
        end = in.readInt();
    }

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

        public Tokens createFromParcel(Parcel in) {
            return new Tokens(in);
        }

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


    /** Getters and setters **/ 
}

我整个下午都在搜索过，我看不到找到如何正确执行的操作。有人知道吗？

Answer 1

使用WritetypedArray和readtypedArray读写您的阵列到包裹

读

tokens = in.createTypedArray(Tokens.CREATOR);

写

in.writeTypedArray(tokens, flags);

Answer 2

尝试这个...

代替

 tokens = in.readParcelable(Tokens.class.getClassLoader();

和

 tokens = in.readParcelableArray(Tokens.class.getClassLoader());

您正在编写包裹式阵列，但将其阅读为包裹