Activity中通过Bundle传递自定义数据类型

在Android开发中,有时候需要从一个Activity中传递数据到另一个Activity中,在Bundle中已经封装好了简单数据类型,例如String ,int ,float等。但是如果我们想要传递一个复杂的数据类型,比如一个Book对象,该怎么办呢?
        仔细的看了一下Bundle中的方法,其中有一个是putSerializable()方法,Serializable对象是一个可恢复对象接口,我们只需要让Book对象实现Serializable接口,就可以使用Bundle.putSerializable()方法传递Book对象了。废话不多说了,现将代码贴上:
Book类:

package com.bundletest.model.fneg; 

import java.io.Serializable;

  /** 
  *@Copyright:Copyright (c) 2008 - 2100 
  *@Company:Sagret
  *@Author:fengcunhan fengcunhan@gmail.com 
  *@Package:com.bundletest.model.fneg 
  *@FileName:Book.java
  *@Time:2010-12-19 
  *@User:feng
  */
  public class Book implements Serializable {     private static final long serialVersionUID = 1L;     private String name;     private String id;     private String author;

  public String getName() {     return name;   }
  public void setName(String name) {     this.name = name;   }
  public String getId() {     return id;   }
  
  public void setId(String id) {     this.id = id;   }

  public String getAuthor() {     return author;   }

  public void setAuthor(String author) {     this.author = author;   } }

实例化Book类,得到Book对象book以及设置成员变量:

if(TextUtils.isEmpty(bookName)||TextUtils.isEmpty(author)||TextUtils.isEmpty(id)){
  Toast.makeText(AndroidBundleActivity.this, "输入框不能为空", Toast.LENGTH_SHORT).show();
}else{
  Book book=new Book();
  book.setName(bookName);
  book.setAuthor(author);
  book.setId(id);
  Intent intent=new Intent(AndroidBundleActivity.this,RecieveActivity.class);   Bundle bundle=new Bundle();   bundle.putSerializable("book", book);   intent.putExtras(bundle);
  startActivity(intent); }

  在另一个Activity中获取传递过来的book对象,并显示:

Intent intent=this.getIntent();
Bundle bundle=intent.getExtras();

Book book=(Book)bundle.getSerializable("book");
nameText.setText("书名:"+book.getName());
authorText.setText("作者:"+book.getAuthor());
idText.setText("ID:"+book.getId());

 

 

 

posted @ 2012-11-12 14:12  滴水瓦  阅读(466)  评论(0编辑  收藏  举报