public class Entry implements Parcelable{
public int userID;
public String username;
public boolean isMale;
public Book book;//序列化對(duì)象可以嵌套序列化對(duì)象，前提是2個(gè)類的對(duì)象都被序列號(hào)過(guò)
//幾乎所有情況下都返回0，可以不管
@Override
public int describeContents() {
return 0;
}
//序列化對(duì)象，將對(duì)象寫到序列號(hào)數(shù)據(jù)結(jié)構(gòu)中
//flags:大多數(shù)情況為0
@Override
public void writeToParcel(Parcel out, int flags) {
out.writeInt(userID);
out.writeString(username);
out.writeInt(isMale ? 1:0);
out.writeParcelable(book, 0);
// out.writeList(list);也可以序列號(hào)list和Map，前提是list和Map里面的數(shù)據(jù)都是可序列號(hào)的
// out.writeMap(Map);
}
public Entry(int userID,String username,boolean isMale) {
this.userID = userID;
this.username = username;
this.isMale = isMale;
}
//反序列化
public static final Parcelable.Creator<Entry> CREATOR = new Creator<Entry>() {
//創(chuàng)建指定長(zhǎng)度的原始對(duì)象數(shù)組
@Override
public Entry[] newArray(int size) {
// TODO Auto-generated method stub
return new Entry[size];
}
//從序列號(hào)過(guò)后的對(duì)象中創(chuàng)建原始對(duì)象
@Override
public Entry createFromParcel(Parcel source) {
// TODO Auto-generated method stub
return new Entry(source);
}
};
//從序列號(hào)后的對(duì)象中創(chuàng)建原始對(duì)象
private Entry(Parcel in){
userID = in.readInt();
username = in.readString();
isMale = in.readInt() == 1;
in.readParcelable(Thread.currentThread().getContextClassLoader());
}

}