Question

我正在研究android应用程序，我希望通过intent将Cutom列表对象传递给其他活动。我已经使CustomList类实现Serializable接口。并使用以下代码通过意图发送数据：

FeedList mSelectedFeedList = mFeedItemList.get(position);
Intent intent = new Intent(mContext, SingleFeedPage.class);                                         intent.putExtra("feedItemPosition", listItemHolder.mSelectedPosition);
intent.putExtra("action_id", mSelectedFeedList.getmActionId());
intent.putExtra("feedList", mSelectedFeedList);

当我通过意图发送这个mSelectedFeedList时，我收到以下错误：

java.lang.RuntimeException: Parcelable encountered IOException writing serializable object (name = com.socialengineaddons.mobileapp.classes.common.utils.FeedList)

以下是FeedList.java的代码

public class FeedList {

private String mFeedIcon, mFeedTitle, mFeedPostTime, mWebUrl, mActionTypeBody, mFeedAttachmentType;
private int mAttachmentCount, mLikeCount, mCommentCount, mIsLike, mPhotoAttachmentCount;
private int mCommentAble, mShareAble;
private int mCanComment;
private JSONArray mFeedMenusArray, mFeedAttachmentArray, mFeedFilterArray;
private JSONObject mFeedFooterMenus, mFeedPostMenus,mFeedObject;
String mHiddenBodyText, mUndoHiddenFeedURl, mHideAllText, mHideAllUrl, mHideAllName, mFeedType;
int mSubjectId, mActionId;
Map<String, String> mClickableStringsList;
Map<Integer, String> mVideoInfo;
boolean noFeed;
ArrayList<PhotoListDetails> mPhotoDetails;

public FeedList(int actionId, int subjectId, String mFeedTitle, String mFeedIcon, JSONArray
        mFeedMenusArray, String mFeedPostTime, int attachmentCount, int likeCount, int commentCount,
                int canComment, int isLike, JSONObject feedObject, JSONArray feedAttachmentArray, int photoAttachmentCount,
                JSONObject feedFooterMenus, int commentAble, int shareAble,
                Map<String, String> clickableStrings, String actionTypeBody, Map<Integer, String> videoInfo,
                String url, String feedAttachmentType, String type) {

    this.mSubjectId = subjectId;

    this.mFeedTitle = mFeedTitle;
    this.mFeedIcon = mFeedIcon;
    this.mFeedMenusArray = mFeedMenusArray;
    this.mFeedPostTime = mFeedPostTime;

    mAttachmentCount = attachmentCount;
    mLikeCount = likeCount;
    mCommentCount = commentCount;
    mIsLike = isLike;
    mCanComment = canComment;

    this.mFeedObject = feedObject;
    this.mFeedAttachmentArray = feedAttachmentArray;
    this.mPhotoAttachmentCount = photoAttachmentCount;

    this.mCommentAble = commentAble;
    this.mShareAble = shareAble;

    mFeedFooterMenus = feedFooterMenus;

    mActionId = actionId;

    mClickableStringsList = clickableStrings;
    mVideoInfo = videoInfo;

    mWebUrl = url;
    mActionTypeBody = actionTypeBody;

    mFeedAttachmentType = feedAttachmentType;
    mFeedType = type;

}

public FeedList(JSONObject feedPostMenus, JSONArray FeedFilterArray, boolean isNoFeed){
    mFeedPostMenus =  feedPostMenus;
    mFeedFilterArray = FeedFilterArray;
    this.noFeed = isNoFeed;
}

public boolean isNoFeed() {
    return noFeed;
}

public String getmFeedIcon() {
    return mFeedIcon;
}

public String getmFeedTitle() {
    return mFeedTitle;
}

public String getmFeedPostTime() {
    return mFeedPostTime;
}

public JSONArray getmFeedMenusArray() {
    return mFeedMenusArray;
}

public void setmFeedMenusArray(JSONArray mFeedMenusArray) {
    this.mFeedMenusArray = mFeedMenusArray;
}

public int getmAttachmentCount() {
    return mAttachmentCount;
}

public int getmLikeCount() {
    return mLikeCount;
}

public void setmLikeCount(int mLikeCount) {
    this.mLikeCount = mLikeCount;
}

public int getmCommentCount() {
    return mCommentCount;
}

public void setmCommentCount(int mCommentCount) {
    this.mCommentCount = mCommentCount;
}

public int getmIsLike() {
    return mIsLike;
}

public void setmIsLike(int mIsLike) {
    this.mIsLike = mIsLike;
}

public int ismCanComment() {
    return mCanComment;
}

public int getmPhotoAttachmentCount() {
    return mPhotoAttachmentCount;
}

public JSONArray getmFeedAttachmentArray() {
    return mFeedAttachmentArray;
}

public JSONObject getmFeedFooterMenus() {
    return mFeedFooterMenus;
}

public void setmFeedFooterMenus(JSONObject mFeedFooterMenus) {
    this.mFeedFooterMenus = mFeedFooterMenus;
}

public String getmHiddenBodyText() {
    return mHiddenBodyText;
}

public void setmHiddenBodyText(String mHiddenBodyText) {
    this.mHiddenBodyText = mHiddenBodyText;
}

public String getmUndoHiddenFeedURl() {
    return mUndoHiddenFeedURl;
}

public void setmUndoHiddenFeedURl(String mUndoHiddenFeedURl) {
    this.mUndoHiddenFeedURl = mUndoHiddenFeedURl;
}

public String getmHideAllText() {
    return mHideAllText;
}

public void setmHideAllText(String mHideAllText) {
    this.mHideAllText = mHideAllText;
}

public String getmHideAllUrl() {
    return mHideAllUrl;
}

public void setmHideAllUrl(String mHideAllUrl) {
    this.mHideAllUrl = mHideAllUrl;
}

public String getmHideAllName() {
    return mHideAllName;
}

public void setmHideAllName(String mHideAllName) {
    this.mHideAllName = mHideAllName;
}

public int getmCommentAble() {
    return mCommentAble;
}

public void setmCommentAble(int mCommentAble) {
    this.mCommentAble = mCommentAble;
}

public int getmShareAble() {
    return mShareAble;
}

public void setmShareAble(int mShareAble) {
    this.mShareAble = mShareAble;
}

public int getmSubjectId() {
    return mSubjectId;
}

public void setmSubjectId(int mSubjectId) {
    this.mSubjectId = mSubjectId;
}

public int getmActionId() {
    return mActionId;
}

public Map<String, String> getmClickableStringsList() {
    return mClickableStringsList;
}


public JSONArray getmFeedFilterArray() {
    return mFeedFilterArray;
}


public JSONObject getmFeedPostMenus() {
    return mFeedPostMenus;
}


public ArrayList<PhotoListDetails> getmPhotoDetails() {
    return mPhotoDetails;
}

public void setmPhotoDetails(ArrayList<PhotoListDetails> mPhotoDetails) {
    this.mPhotoDetails = mPhotoDetails;
}

public String getmActionTypeBody() {
    return mActionTypeBody;
}

public void setmActionTypeBody(String mActionTypeBody) {
    this.mActionTypeBody = mActionTypeBody;
}

public JSONObject getmFeedObject() {
    return mFeedObject;
}

public void setmFeedObject(JSONObject mFeedObject) {
    this.mFeedObject = mFeedObject;
}

public Map<Integer, String> getmVideoInfo() {
    return mVideoInfo;


}

public String getmWebUrl() {
    return mWebUrl;
}

public String getmFeedType() {
    return mFeedType;
}

public String getmFeedAttachmentType() {
    return mFeedAttachmentType;
}

}

我如何解决这个问题，任何人都对此有所了解。

非常感谢先进!!!

Answer 1

您必须使用parcelable类。

public class Student implements Parcelable{
        private String id;
        private String name;


        // Constructor
        public Student(String id, String name ){
            this.id = id;
            this.name = name;

       }
       // Getter and setter methods
       .........
       .........

       // Parcelling part
       public Student(Parcel in){
           String[] data = new String[3];

           in.readStringArray(data);
           this.id = data[0];
           this.name = data[1];

       }

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

       @Override
       public void writeToParcel(Parcel dest, int flags) {
           dest.writeStringArray(new String[] {this.id,
                                               this.name });
       }
       public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
           public Student createFromParcel(Parcel in) {
               return new Student(in); 
           }

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

使用：

intent.putExtra("student", new Student("1","Mike"));

获取数据：

Bundle data = getIntent().getExtras();
Student student = (Student) data.getParcelable("student");

或者您可以使用此库：

https://github.com/johncarl81/parceler

或使用Serializable：

public class Student implements Serializable {
        private String id;
        private String name;



        public Student(String id, String name ){
            this.id = id;
            this.name = name;

       }
       public string getId() {
          id;
       }


       public string setName() {
         name;
       }

   }

尝试传递serializable;

Bundle bundle = new Bundle();
bundle.putSerializable("student", new Student("1","Mike"));
intent.putExtras(bundle);

获取：

Intent intent = this.getIntent();
Bundle bundle = intent.getExtras();

Student st=(Student )bundle.getSerializable("value");

Answer 2

制作FeedList班Parcelable。

使用Parcelabler工具创建Parcelable类。

然后像这样投入意图 -

intent.putExtra("feedList", mSelectedFeedList);

像这样收到 -

Bundle data = getIntent().getExtras();
Feedlist feedlist= (FeedList) data.getParcelable("feedList");

如何使用intent传递自定义列表对象

2 个答案: