Android对象序列化（Activity之间传递对象，Parcelable小例子）

Android中为了能够在Activity之间传递值，需要只用Intent中的put函数。

其中bundle.putParcelable可以实现传递对象，但是这个对象的类必须实现Parcelable接口才能够使用。

下面是一个简单的在Activity之间传递对象的例子。

Parcelable类。最主要的类，也就是我们要传送的对象的类，需要实现Parcelable接口。

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;}@Overridepublic int describeContents() {return 0;}@Overridepublic void writeToParcel(Parcel parcel, int flag) {parcel.writeString(name);parcel.writeInt(age);parcel.writeString(profession);}public static final Creator CREATOR = new Creator() {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();}}

ParcelableActivity类，传递对象的Activity类。

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;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);myButton = (Button) findViewById(R.id.myButton);myButton.setOnClickListener(new OnClickListener() {@Overridepublic 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);}});}}

GetParcelableActivity类，接收序列化对象的Activity类。

package com.zeph.android.Parcelable;import android.app.Activity;import android.os.Bundle;public class GetParcelableActivity extends Activity {@Overrideprotected 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());}}

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