Activity之间传递一个类对象或多个类对象的方法

可以查看这两篇文章：
1，通过Serializable传递一个类对象的例子
http://mingkg21.iteye.com/blog/438913
2，通过Parcelable传递一个类对象的例子
http://mingkg21.iteye.com/blog/463895

而若需要传递多个类对象的时候就必须用Parcelable来封装类，然后将其存放在ArrayList,
我从网上下载的一个例子该成这种情况的：可以看其代码：

对象：

package cn.wizhy;

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

public class Phone implements Parcelable{
	String type;
	String company;
	int price;
	public Phone(String t,String c,int p) {
		type=t;
		company=c;
		price=p;
	}
	public Phone() {
		// TODO Auto-generated constructor stub
	}
	public String getType() {
		return type;
	}
	public void setType(String type) {
		this.type = type;
	}
	public String getCompany() {
		return company;
	}
	public void setCompany(String company) {
		this.company = company;
	}
	public int getPrice() {
		return price;
	}
	public void setPrice(int price) {
		this.price = price;
	}
	public static final Parcelable.Creator<Phone> CREATOR = new Creator<Phone>(){

		@Override
		public Phone createFromParcel(Parcel source) {
			// TODO Auto-generated method stub
			Phone cus = new Phone();  
	            cus.type = source.readString();  
	            cus.company = source.readString();  
	            cus.price = source.readInt();  
	            return cus;  
		}

		@Override
		public Phone[] newArray(int size) {
			// TODO Auto-generated method stub
			return new Phone[size];
		}  
		
	};
	@Override
	public int describeContents() {
		// TODO Auto-generated method stub
		return 0;
	}
	@Override
	public void writeToParcel(Parcel dest, int flags) {
		// TODO Auto-generated method stub
		dest.writeString(type);
		dest.writeString(company);
		dest.writeInt(price);
		
	}
}

第一个Activity，构造类将其存放到Arraylist里，并通过Intent传给第二个Activity

package cn.wizhy;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;

public class Demo extends Activity {
	ArrayList<Phone> info = new ArrayList<Phone>();
    public Phone phone;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        insertPhone();
        Intent intent = new Intent(this,Demo2.class);
//        Bundle bundle = new Bundle();
//        bundle.putSerializable("phone", phone);
       
//        intent.putExtras(bundle);
        phone = new Phone("goole","G1",6000);
        info.add(phone);
        phone = new Phone("apple", "iphone3G", 5000);
        info.add(phone);
       intent.putExtra("phones", info);
        
        startActivity(intent);
    }
    public void insertPhone(){
    	phone= new Phone("apple", "iphone3G", 5000);
    }
    
}

第二个Activity接受数据：

package cn.wizhy;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;

public class Demo2 extends Activity {
	ArrayList<Phone> info = new ArrayList<Phone>();
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		Intent intent = getIntent();
		info =intent.getParcelableArrayListExtra("phones");
		for(int i=0;i<info.size();i++){
			System.out.println("type="+info.get(i).type+"   company="+info.get(i).company+" price"+info.get(i).price);
		}
	}
}