android问题集锦之十二：android.os.BadParcelableException: ClassNotFoundException when unmarshalling

在上篇文Activity间传类对象数据中的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。