Intent传递对象（Serializable和Parceble）用实例完全解析！！

它们的使用场景都是用在Activity之间传递数据，此数据可以是复杂的对象。
Parceble比Serializable更高级，更具轻量级，首先Parceble进行序列化和反序列化是在内存中进行的，比Serializable在磁盘或是SD上要效率的多；Serializable在序列化的时候会产生大量的临时对象，从而会引起频繁的GC,效率较低；Parceble代码实现起来比Serializable麻烦些；在使用内存的时候，Parcelable比Serializable性能高，所以推荐使用Parcelable类。
实现原理之核心代码

 //Serializeable传递对象的方法
    public void SerializeMethod(){
        Person mPerson = new Person();
        mPerson.setName("wangyang");
        mPerson.setAge(23);
        Intent mIntent = new Intent(this,IntentDemo1.class);
        Bundle mBundle = new Bundle();
        mBundle.putSerializable(SER_KEY,mPerson);
        mIntent.putExtras(mBundle);

        startActivity(mIntent);
    }
    //Pacelable传递对象方法
    public void PacelableMethod(){
        Book mBook = new Book();
        mBook.setBookName("Haier");
        mBook.setAuthor("wy");
        mBook.setPublishTime(20161112);
        Intent mIntent = new Intent(this,IntentDemo2.class);
        Bundle mBundle = new Bundle();
        mBundle.putParcelable(PAR_KEY, mBook);
        mIntent.putExtras(mBundle);

        startActivity(mIntent);
    }

接收之核心代码

 Person mPerson = (Person)getIntent().getSerializableExtra(new IntentDemo().SER_KEY);

Book mBook = (Book)getIntent().getParcelableExtra(new IntentDemo().PAR_KEY);

Serializable使用举例：
1新建一个IntentDemo

package com.mindasset.intentdemo;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class IntentDemo  extends Activity implements View.OnClickListener {

    private Button sButton,pButton;
    public  final static String SER_KEY = "cn.caiwb.intent.ser";
    public  final static String PAR_KEY = "cn.caiwb.intent.par";
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setupViews();

    }

    public void setupViews(){
        sButton = (Button)findViewById(R.id.button1);
        pButton = (Button)findViewById(R.id.button2);
        sButton.setOnClickListener(this);
        pButton.setOnClickListener(this);
    }
    //Serializeable传递对象的方法
    public void SerializeMethod(){
        Person mPerson = new Person();
        mPerson.setName("wangyang");
        mPerson.setAge(23);
        Intent mIntent = new Intent(this,IntentDemo1.class);
        Bundle mBundle = new Bundle();
        mBundle.putSerializable(SER_KEY,mPerson);
        mIntent.putExtras(mBundle);

        startActivity(mIntent);
    }
    //Pacelable传递对象方法
    public void PacelableMethod(){
        Book mBook = new Book();
        mBook.setBookName("Haier");
        mBook.setAuthor("wy");
        mBook.setPublishTime(20161112);
        Intent mIntent = new Intent(this,IntentDemo2.class);
        Bundle mBundle = new Bundle();
        mBundle.putParcelable(PAR_KEY, mBook);
        mIntent.putExtras(mBundle);

        startActivity(mIntent);
    }
    //铵钮点击事件响应
    public void onClick(View v) {
        if(v == sButton){
            SerializeMethod();
        }else{
            PacelableMethod();
        }
    }
}

布局文件

              android:orientation="vertical"
              android:layout_width="fill_parent"
              android:layout_height="fill_parent"
    >
            android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Welcome to wangyang's blog."
        />
            android:id="@+id/button1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Serializable"
        />
            android:id="@+id/button2"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Parcelable"
        />

2Person类实现Serializable接口

package com.mindasset.intentdemo;

import java.io.Serializable;

/**
 * Created by Administrator on 2016/11/12.
 */

public class Person implements Serializable {
    //person这个类实现了Serializable接口，可以把Person整个对象进行Activity之间的传递
    private String name;
    private int age;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
}

3用来接收实现Serializable接口的对象

package com.mindasset.intentdemo;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class IntentDemo1 extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
//代码中实现布局展示
        TextView mTextView = new TextView(this);
        Person mPerson = (Person)getIntent().getSerializableExtra(new IntentDemo().SER_KEY);
        mTextView.setText("You name is: " + mPerson.getName() + "/n"+
                "You age is: " + mPerson.getAge());

        setContentView(mTextView);
    }
}

4新建一个实现Parceble接口的类对象Book

package com.mindasset.intentdemo;

import android.os.Parcel;
import android.os.Parcelable;

/**
 * Created by Administrator on 2016/11/12.
 */

public class Book implements Parcelable {
    //Book类实现Parceble接口，Intent可以在内存中高效率的传递这个Book对象
    private String bookName;
    private String author;
    private int publishTime;

    public String getBookName() {
        return bookName;
    }
    public void setBookName(String bookName) {
        this.bookName = bookName;
    }
    public String getAuthor() {
        return author;
    }
    public void setAuthor(String author) {
        this.author = author;
    }
    public int getPublishTime() {
        return publishTime;
    }
    public void setPublishTime(int publishTime) {
        this.publishTime = publishTime;
    }

    public static final Parcelable.Creator CREATOR = new Creator() {
        public Book createFromParcel(Parcel source) {
            Book mBook = new Book();
            mBook.bookName = source.readString();
            mBook.author = source.readString();
            mBook.publishTime = source.readInt();
            return mBook;
        }
        public Book[] newArray(int size) {
            return new Book[size];
        }
    };

    public int describeContents() {
        return 0;
    }
    public void writeToParcel(Parcel parcel, int flags) {
        parcel.writeString(bookName);
        parcel.writeString(author);
        parcel.writeInt(publishTime);
    }
    //详解：
    /*
    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);  
    }  
     */
}

5用来接收实现Parcveble接口的对象

package com.mindasset.intentdemo;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class IntentDemo2 extends Activity {

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        TextView mTextView = new TextView(this);
        Book mBook = (Book)getIntent().getParcelableExtra(new IntentDemo().PAR_KEY);
        mTextView.setText("Book name is: " + mBook.getBookName()+"/n"+
                "Author is: " + mBook.getAuthor() + "/n" +
                "PublishTime is: " + mBook.getPublishTime());
        setContentView(mTextView);
    }
}