Android中為了能夠在Activity之間傳遞值，需要只用Intent中的put函式。

其中bundle.putParcelable可以實現傳遞物件，但是這個物件的類必須實現Parcelable接口才能夠使用。

下面是一個簡單的在Activity之間傳遞物件的例子。

Parcelable類。最主要的類，也就是我們要傳送的物件的類，需要實現Parcelable介面。

package com.zeph.android.Parcelable;

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

public class BenParcelable implements Parcelable {

	public String name;

	public int age;

	public String profession;

	public BenParcelable(String name, int age, String profession) {
		this.name = name;
		this.age = age;
		this.profession = profession;
	}

	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;
	}

	public String getprofession() {
		return profession;
	}

	public void setprofession(String profession) {
		this.profession = profession;
	}

	@Override
	public int describeContents() {
		return 0;
	}

	@Override
	public void writeToParcel(Parcel parcel, int flag) {
		parcel.writeString(name);
		parcel.writeInt(age);
		parcel.writeString(profession);
	}

	public static final Creator<BenParcelable> CREATOR = new Creator<BenParcelable>() {
		public BenParcelable createFromParcel(Parcel in) {
			return new BenParcelable(in);
		}

		public BenParcelable[] newArray(int size) {
			return new BenParcelable[size];
		}
	};

	private BenParcelable(Parcel in) {
		name = in.readString();
		age = in.readInt();
		profession = in.readString();
	}
}
 

package com.zeph.android.Parcelable;

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

public class ParcelableActivity extends Activity {

	private Button myButton;

	@Override
	public void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.main);

		myButton = (Button) findViewById(R.id.myButton);

		myButton.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View arg0) {

				BenParcelable benParcelable = new BenParcelable("BenZeph", 23,
						"Java/Android Engineer");

				Intent intent = new Intent();

				intent.setClass(getApplicationContext(),
						GetParcelableActivity.class);

				Bundle bundle = new Bundle();

				bundle.putParcelable("Ben", benParcelable);

				intent.putExtras(bundle);

				startActivity(intent);

			}
		});
	}
}
 

package com.zeph.android.Parcelable;

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

public class GetParcelableActivity extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.main);

		BenParcelable parcelable = getIntent().getParcelableExtra("Ben");

		System.out.println(parcelable.getName());

		System.out.println(parcelable.getAge());
		
		System.out.println(parcelable.getprofession());

	}

}