笔记：Android中Intent传递对象的两种方法(Serializable,Parcelable)

• 一种是Bundle.putSerializable(Key,Object);
• 另一种是Bundle.putParcelable(Key, Object);
• 前者是实现了Serializable接口，而后者是实现了Parcelable接口

• 代码实现

  实现Serializable的实例Person

  public class Person implements Serializable {
  private static final long serialVersionUID = -7060210544600464481L; 
  private String name;
  private int age;
  /** get/set方法省略 **/
  }

  实现Pracelable的实例Book

  
  public class Book implements Parcelable {
  private String bookName;
  private String author;
  private int publishTime;
  /** get/set方法省略 **/
  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); } }

  >Activity的调用传输Serializeable与Pacelable的实例
  ```java
  public class ObjectTranDemo extends Activity implements OnClickListener {
  public  final static String SER_KEY = "com.tutor.objecttran.ser";
  public  final static String PAR_KEY = "com.tutor.objecttran.par";
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
      /** 省略组件绑定表调用代码 **/
  
  }
  //Serializeable传递对象的方法
  public void SerializeMethod(){
      Person mPerson = new Person();
      mPerson.setName("frankie");
      mPerson.setAge(25);
      Intent mIntent = new Intent(this,ObjectTranDemo1.class);
      Bundle mBundle = new Bundle();
      /** 以下是Serializable传输方法 **/
      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("Android Tutor");
      mBook.setAuthor("Frankie");
      mBook.setPublishTime(2010);
      Intent mIntent = new Intent(this,ObjectTranDemo2.class);
      Bundle mBundle = new Bundle();
      /** 以下是Parcelable传输方法 **/
      mBundle.putParcelable(PAR_KEY, mBook);
      mIntent.putExtras(mBundle);
  
      startActivity(mIntent);
  }
  }
  }

  接收Serializable的Activity

  
  public class ObjectTranDemo1 extends Activity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);

  TextView mTextView = new TextView(this);
  Person mPerson = (Person)getIntent().getSerializableExtra(ObjectTranDemo.SER_KEY);
  mTextView.setText("You name is: " + mPerson.getName() + "/n"+
          "You age is: " + mPerson.getAge());
  
  setContentView(mTextView);

  } }

  > 接收Parcelable的Activity
  ```java
  public class ObjectTranDemo2 extends Activity {
  
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      TextView mTextView = new TextView(this);
      Book mBook = (Book)getIntent().getParcelableExtra(ObjectTranDemo.PAR_KEY);
      mTextView.setText("Book name is: " + mBook.getBookName()+"/n"+
                        "Author is: " + mBook.getAuthor() + "/n" +
                        "PublishTime is: " + mBook.getPublishTime());
      setContentView(mTextView);
  }
  }

参考资料