Intent传递对象之Serializable和Parcelable的区别

User user = new User();
Intent intent = new Intent(this,Second.class); 
intent.putExtra("user",user);

Intent intent = getIntent();
User user = intent.getSerializableExtra("user");

package com.example.intent_object; 
import android.os.Parcel; 
import android.os.Parcelable; 
public class User implements Parcelable { 
public String name; 
public int age; 
// 必须要创建一个名叫CREATOR的常量。 
public static final Parcelable.Creator CREATOR = new Parcelable.Creator() { 
@Override 
public User createFromParcel(Parcel source) { 
return new User(source); 
} 
//重写createFromParcel方法，创建并返回一个获得了数据的user对象 
@Override 
public User[] newArray(int size) { 
return new User[size]; 
} 
}; 
@Override 
public String toString() { 
return name + ":" + age; 
} 
// 无参数构造器方法，供外界创建类的实例时调用 
public User() { 
} 
// 带参构造器方法私用化，本构造器仅供类的方法createFromParcel调用 
private User(Parcel source) { 
name = source.readString(); 
age = source.readInt(); 
} 
@Override 
public int describeContents() { 
return 0; 
} 
// 将对象中的属性保存至目标对象dest中 
@Override 
public void writeToParcel(Parcel dest, int flags) { 
dest.writeString(name); 
dest.writeInt(age); 
} 
//省略getter/setter } 

Bundle bundle = new Bundle(); 
bundle.putParcelable("user", user); 
Intent intent = new Intent(MainActivity.this, 
SecondActivity.class); 
intent.putExtras(bundle); 
Intent intent = getIntent(); 
Bundle bun = intent.getExtras(); 
User user = bun.getParcelable("user"); 
System.out.println(user);