1.对要传递的对象类型实现Parcelable：

public class User implements Parcelable//对象必须实现Parcelable接口才可以putExtra(或者序列化)
{String name;String psw;public User(String name, String psw){super();this.name = name;this.psw = psw;}@Overridepublic String toString(){return "User [name=" + name + ", psw=" + psw + "]";}@Overridepublic int describeContents(){return 0;}@Overridepublic void writeToParcel(Parcel dest, int flags)//将属性写入Parcel对象{dest.writeString(name);dest.writeString(psw);}public static final Parcelable.Creator<User> CREATOR = new Parcelable.Creator<User>(){public User createFromParcel(Parcel in){return new User(in);//创建一个有参构造函数}public User[] newArray(int size){return new User[size];}};public User(Parcel in)//根据写入的顺序依次读取{name = in.readString();psw = in.readString();}
}

2.第一个activity传递user对象：

public class MainActivity extends Activity
{private EditText editText1;private EditText editText2;@Overrideprotected void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);editText1 = (EditText) findViewById(R.id.editText1);editText2 = (EditText) findViewById(R.id.editText2);findViewById(R.id.button1).setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v){String namestr = editText1.getText().toString();String pswstr = editText2.getText().toString();User user = new User(namestr, pswstr);Intent intent = new Intent(MainActivity.this, NextActivity.class);intent.putExtra("user", user);//传入对象,对象类必须实现Parcelable或者序列化startActivity(intent);}});}@Overridepublic boolean onCreateOptionsMenu(Menu menu){getMenuInflater().inflate(R.menu.activity_main, menu);return true;}
}

3.第二个activity接收user对象：

public class NextActivity extends Activity
{@Overrideprotected void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_next);TextView textView = (TextView) findViewById(R.id.textView1);Intent intent = getIntent();User user = intent.getParcelableExtra("user");//得到一个对象textView.setText(user.toString());}@Overridepublic boolean onCreateOptionsMenu(Menu menu){getMenuInflater().inflate(R.menu.activity_next, menu);return true;}
}

其他笔记:

1.带有数组类型属性的类

    @Overridepublic void writeToParcel(Parcel dest, int flags){dest.writeStringList(CompanyIntroList);}public EstateInfoJson(Parcel in){CompanyIntroList = new ArrayList<String>();in.readStringList(CompanyIntroList);}

2.带有其他类的属性

    public EstateParamJson EstateParam;@Overridepublic void writeToParcel(Parcel dest, int flags){dest.writeValue(EstateParam);}@Overridepublic EstateInfoJson(Parcel in){EstateParam = (EstateParamJson) in.readValue(EstateParamJson.class.getClassLoader());}

3.带有其他类的数组类型的属性

    public ArrayList<PicJson> shiJing;//实景图@Overridepublic void writeToParcel(Parcel dest, int flags){dest.writeTypedList(shiJing);}public GalleryJson(Parcel in){shiJing = new ArrayList<PicJson>();in.readTypedList(shiJing, PicJson.CREATOR);}

4.带有子类父类的情况：

public abstract class A implements Parcelable {  private int a;  protected A(int a) {  this.a = a;  }  public void writeToParcel(Parcel out, int flags) {  out.writeInt(a);  }  protected A(Parcel in) {  a = in.readInt();  }
}  public class B extends A {  private int b;  public B(int a, int b) {  super(a);  this.b = b;  }  public static final Parcelable.Creator<B> CREATOR = new Parcelable.Creator<B>() {  public B createFromParcel(Parcel in) {  return new B(in);  }  public B[] newArray(int size) {  return new B[size];  }  };  public int describeContents() {  return 0;  }  public void writeToParcel(Parcel out, int flags) {  super.writeToParcel(out, flags);  out.writeInt(b);  }  private B(Parcel in) {  super(in);  b = in.readInt();  }
}

参考：http://dev.wo.com.cn/docportal/doc_queryMdocDetail.action?mdoc.docindex=6301