android问题集锦之十二
最后更新于：2022-04-01 06:38:18
## android.os.BadParcelableException: ClassNotFoundException when unmarshalling
在上篇文[Activity间传类对象数据](http://blog.csdn.net/lincyang/article/details/7080676)中的person类中加入一个List字段的话，如下
~~~
package com.linc.meta;
import android.os.Parcel;
import android.os.Parcelable;
public class Person implements Parcelable {
private String Name = null;
private String Gender = null;
private int HP = 0;
private String Summary = null;
private String Skill = null;
private List skillList = new ArrayList();
public Person(String name,String gender,int HP,String summary,String skill)
{
this.Name = name;
this.Gender = gender;
this.Summary = summary;
this.HP = HP;
this.Skill = skill;
}
public String getName() {
return Name;
}
public void setName(String name) {
Name = name;
}
public String getGender() {
return Gender;
}
public void setGender(String gender) {
Gender = gender;
}
public int getHP() {
return HP;
}
public void setHP(int hP) {
HP = hP;
}
public String getSummary() {
return Summary;
}
public void setSummary(String summary) {
Summary = summary;
}
public String getSkill() {
return Skill;
}
public void setSkill(String skill) {
Skill = skill;
}
//Describe the kinds of special objects contained in this Parcelable's marshalled representation.
//CONTENTS_FILE_DESCRIPTOR
@Override
public int describeContents() {
// TODO Auto-generated method stub
return 0;
}
//该方法将类的数据写入外部提供的Parcel中
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(Name);
dest.writeString(Gender);
dest.writeString(Summary);
dest.writeInt(HP);
dest.writeString(Skill);
}
public static final Parcelable.Creator CREATOR = new Creator()
{
@Override
public Person createFromParcel(Parcel source) {
return new Person(source);
}
@Override
public Person[] newArray(int size) {
return new Person[size];
}
};
private Person(Parcel dest)
{
this.Name = dest.readString();
this.Gender = dest.readString();
this.Summary = dest.readString();
this.HP = dest.readInt();
this.Skill = dest.readString();
this.skillList = dest.readArrayList(String.class.getClassLoader());//class loader 必须要指明
}
}
~~~
List中是什么类型就要把类型的class loader引入，否则就会报上述错误。