我遇到以下错误：
- Key com..BookStatus expected Parcelable but value was a ArrayList
- ClassCastException: ArrayList cannot be cast to Parcelable -> 接着出现：Unable to start Activity - NullPointerException
该ArrayList具有BookStatus对象（listToPass）的值
- Key com.example.books.BookStatus expected Parcelable but value was a java.util.ArrayList. The default value was returned
- Attempt to cast generated internal exception:
- java.lang.ClassCastException: java.util.ArrayList cannot be cast to android.os.Parcelable
- 在com.example.books4locals.SearchActivity.onCreate(SearchActivity.java:46)中，即为bundle.getparcelable方法
我该怎么做？
HomeActivity.java
ArrayList<BookStatus> listToPass = new ArrayList<BookStatus>(); // fill with smthg
protected void onPostExecute(String result) {
if (listToPass != null) {
Intent i = new Intent(getApplicationContext(),
SearchActivity.class);
// ArrayList<BookStatus> bs = new ArrayList<BookStatus> (Arrays.asList(bArr));
i.putParcelableArrayListExtra("com.example.books.BookStatus", listToPass);
startActivity(i);
SearchActivity.java
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.searchactivity_main);
Bundle bundle = getIntent().getExtras();
ArrayList<BookStatus> bookStatus = bundle
.getParcelable("com.example.books.BookStatus");
BookStatus.java
public class BookStatus implements Parcelable {
public BookStatus() {
}
public BookStatus(Parcel in) {
this.bookId=in.readInt();
this.address=in.readString();
this.name=in.readString();
this.author=in.readString();
this.lenderUserId=in.readInt();
this.isbn=in.readInt();
this.postcode=in.readString();
this.town=in.readString();
this.telnumber=in.readString();
this.mail=in.readString();
this.duration=in.readInt();
}
@Override
public int describeContents() {
// TODO Auto-generated method stub
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(this.bookId);
dest.writeString(this.address);
dest.writeString(this.name);
dest.writeString(this.author);
dest.writeInt(this.lenderUserId);
dest.writeInt(this.isbn);
dest.writeString(this.postcode);
dest.writeString(this.town);
dest.writeString(this.telnumber);
dest.writeString(this.mail);
dest.writeInt(this.duration);
}
public void readFromParcel(Parcel parcel){
this.bookId = parcel.readInt();
this.address = parcel.readString();
this.name = parcel.readString();
this.author = parcel.readString();
this.lenderUserId = parcel.readInt();
this.isbn = parcel.readInt();
this.postcode = parcel.readString();
this.town = parcel.readString();
this.telnumber = parcel.readString();
this.mail = parcel.readString();
this.duration = parcel.readInt();
}
public static final Parcelable.Creator<BookStatus> CREATOR = new Parcelable.Creator<BookStatus>() {
public BookStatus createFromParcel(Parcel in) {
return new BookStatus(in);
}
public BookStatus[] newArray(int size) {
return new BookStatus[size];
}
};