ClassNotFoundException解组parcelable对象的arraylist

Question

我很沮丧地将一个对象的arraylist发送给另一个活动。要发送的数据是通过asynctask（SplashScreen活动）中调用的webservice检索的。

我已经遵循了一些指导原则（即Problem unmarshalling parcelables），但没有任何运气。

事实上，第二个活动可以检索信息，并且应用程序正常运行，但异常会一直显示。

我真的很感激任何帮助，因为它让我永远地解决了这个问题。

例外：

01-14 11:31:26.490    2357-3205/? E/Parcel﹕ Class not found when unmarshalling: com.rebytes.ilistas.MapPacks
java.lang.ClassNotFoundException: com.rebytes.ilistas.MapPacks
        at java.lang.Class.classForName(Native Method)
        at java.lang.Class.forName(Class.java:204)
        at java.lang.Class.forName(Class.java:169)
        at android.os.Parcel.readParcelableCreator(Parcel.java:2091)
        at android.os.Parcel.readParcelable(Parcel.java:2055)
        at android.os.Parcel.readValue(Parcel.java:1971)
        at android.os.Parcel.readMapInternal(Parcel.java:2255)
        at android.os.Bundle.unparcel(Bundle.java:223)
        at android.os.Bundle.getString(Bundle.java:1082)
        at android.content.Intent.getStringExtra(Intent.java:4961)
        at com.android.server.am.ActivityStack.startActivityLocked(ActivityStack.java:3761)
        at com.android.server.am.ActivityStack.startActivityMayWait(ActivityStack.java:4977)
        at com.android.server.am.ActivityManagerService.startActivityAsUser(ActivityManagerService.java:3173)
        at com.android.server.am.ActivityManagerService.startActivity(ActivityManagerService.java:3129)
        at android.app.ActivityManagerNative.onTransact(ActivityManagerNative.java:157)
        at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:2125)
        at android.os.Binder.execTransact(Binder.java:388)
        at dalvik.system.NativeStart.run(Native Method)

AsyncTask（SplashScreen活动）

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.splash);

    this.cont = getApplicationContext();

    try {
        String pack = getPackageManager().getPackageInfo(getPackageName(), 0).packageName;

        toDownload = new MenuIntializationJSONFeedTask(this).execute("http://ilistas.slormin.com/v3/android/menuJSON.php").get();

        Intent mainClass = new Intent(SplashScreen.this, MainActivity.class);
        Bundle bundle = new Bundle();
        bundle.setClassLoader(MainActivity.class.getClassLoader());
        bundle.putParcelable("arraylist", toDownload);
        mainClass.putExtras(bundle);
        startActivity(mainClass);
        finish();
        overridePendingTransition(R.anim.appear, R.anim.disappear);

    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
    } catch (InterruptedException e) {
        e.printStackTrace();
    } catch (ExecutionException e) {
        e.printStackTrace();
    }

}

private class MenuIntializationJSONFeedTask extends AsyncTask<String, Void, MapPacks> {
    Context context;
    public ArrayList<MenuItems> listaDeResultados = new ArrayList<MenuItems>();

    private MenuIntializationJSONFeedTask(Context context) {
        this.context = context;
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
    }

    @Override
    protected MapPacks doInBackground(String... params) {
        JSONObject cadenaJSON = null;
        try {
            cadenaJSON = new JSONObject(readJSONFeed(params[0]));
            JSONArray entradaMenu = cadenaJSON.getJSONArray("menu");
            int i = 0;
            while(i<entradaMenu.length()){
                JSONObject cancion1 = entradaMenu.getJSONObject(i);
                JSONObject detalleCancion = cancion1.getJSONObject("entradas");
                com.rebytes.ilistas.MenuItems menuItem = new com.rebytes.ilistas.MenuItems(detalleCancion.getInt("Id"),
                        detalleCancion.getInt("Level"),
                        detalleCancion.getInt("Position"),
                        Base64.decode(detalleCancion.getString("Image"),0),
                        detalleCancion.getString("Name"),
                        detalleCancion.getString("Url"),
                        detalleCancion.getString("raizJSON"));

                listaDeResultados.add(i,menuItem);
                i++;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        toDownload.setMappacks(listaDeResultados);
        return toDownload;
    }

    @Override
    protected void onProgressUpdate(Void... values) {
        super.onProgressUpdate(values);

    }

    @Override
    protected void onPostExecute(MapPacks result) {
        super.onPostExecute(result);
    }
}

public String readJSONFeed(String URL){
    StringBuilder sB = new StringBuilder();
    HttpClient hC = new DefaultHttpClient();
    hC.getParams().setIntParameter("http.connection.timeout", 15000);
    HttpGet hG = new HttpGet(URL);
    try {
        HttpResponse hR = hC.execute(hG);
        StatusLine sL = hR.getStatusLine();
        int statusCode = sL.getStatusCode();
        if (statusCode == 200){
            HttpEntity hE = hR.getEntity();
            InputStream inputStream = hE.getContent();
            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
            String line;
            while ((line = reader.readLine())!=null){
                sB.append(line);
            }
            inputStream.close();
        } else {
            Log.d("JSON", "Failed to download file");
        }
    } catch (IOException e) {
        Log.d("readJSONFeed", e.getLocalizedMessage());
    }

    return sB.toString();
}

}

MapPacks（可分割的MenuItems对象的包装）

public class MapPacks  implements Parcelable {
public ArrayList<MenuItems> mappacks;


public MapPacks(){}
protected MapPacks(Parcel in){
    in.readBundle(MainActivity.class.getClassLoader());
    mappacks = new ArrayList<MenuItems>();
    //in.readList(mappacks,MainActivity.class.getClassLoader());
}


public void setMappacks(ArrayList<MenuItems> mappacks) {
    this.mappacks = mappacks;
}


public List<MenuItems> getMappacks() {
    return mappacks;
}

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

@Override
public void writeToParcel(Parcel dest, int flags) {
    dest.writeList(mappacks);
}

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

    @Override
    public MapPacks createFromParcel(Parcel source) {
        return new MapPacks(source);
    }

    @Override
    public MapPacks[] newArray(int size) {
        return new MapPacks[size];
    }
};

}

MenuItems（由MapPacks包装的可分割对象）

public class MenuItems implements Parcelable{
public int id;
public int level;
public int idPadre;
public int position;
public byte[] image;
public String name;
public String url;
public String rootJson;

public MenuItems(int id, int level, int position, byte[] image, String name, String url, String rootJson) {
    this.id = id;
    this.level = level;
    this.position = position;
    this.image = image;
    this.name = name;
    this.url = url;
    this.rootJson = rootJson;
}

public MenuItems() {

}

public int getId() {
    return id;
}

public void setId(int id) {
    this.id = id;
}

public int getLevel() {
    return level;
}

public void setLevel(int level) {
    this.level = level;
}

public int getIdPadre() {
    return idPadre;
}

public void setIdPadre(int idPadre) {
    this.idPadre = idPadre;
}

public int getPosition() {
    return position;
}

public void setPosition(int position) {
    this.position = position;
}

public byte[] getImage() {
    return image;
}

public void setImage(byte[] image) {
    this.image = image;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public String getUrl() {
    return url;
}

public void setUrl(String url) {
    this.url = url;
}

public String getRootJson() {
    return rootJson;
}

public void setRootJson(String rootJson) {
    this.rootJson = rootJson;
}

public MenuItems(Parcel in) {
    id = in.readInt();
    level = in.readInt();
    position = in.readInt();
    image = in.createByteArray();
    name = in.readString();
    url = in.readString();
    rootJson = in.readString();
}

public static final Parcelable.Creator<MenuItems> CREATOR = new Parcelable.Creator<MenuItems>() {
    public MenuItems createFromParcel(Parcel in) {
        MenuItems mp = new MenuItems();
        mp.id = in.readInt();
        mp.level = in.readInt();
        mp.position = in.readInt();
        mp.image = in.createByteArray();
        mp.name = in.readString();
        mp.url = in.readString();
        mp.rootJson = in.readString();

        return mp;
    }

    public MenuItems[] newArray(int size) {
        MenuItems[] mps = new MenuItems[size];
        for (int i = 0; i < size; ++i) {
            mps[i] = new MenuItems();
        }
        return mps;
    }
};


public int describeContents() {
    return 0;
}

public void writeToParcel(Parcel dest, int flags) {
    dest.writeInt(id);
    dest.writeInt(level);
    dest.writeInt(position);
    dest.writeByteArray(image);
    dest.writeString(name);
    dest.writeString(url);
    dest.writeString(rootJson);
}

}