Parcelable和Serializable(一)--利用Serializable在Activity之间传递自定义对象

MainActivity如下:

package cc.test.serializable;

import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.app.Activity;
import android.content.Intent;
/**
 * Demo描述:
 * 利用Serializable在Activity之间传递自定义对象
 * 
 * 步骤:
 * 1 JavaBean数据实现Serializable接口
 * 2 通过intent.putExtra(name, value)携带数据
 * 3 通过intent.getSerializableExtra(key)获取传递过来的数据
 */
public class MainActivity extends Activity {
    private Button mButton;
    private final String key="testSerializable";
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		init();
	}
	
	private void init(){
		mButton=(Button) findViewById(R.id.button);
		mButton.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View view) {
				Student student=new Student(7, "zxx");
				Intent intent=new Intent(MainActivity.this, AnotherActivity.class);
				intent.putExtra(key, student);
				startActivity(intent);
			}
		});
		
	}
}

package cc.test.serializable;

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

public class AnotherActivity extends Activity {
	private TextView mTextView;
	 private final String key="testSerializable";
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.another);
		init();
	}

	private void init() {
		mTextView=(TextView) findViewById(R.id.textView);
		//通过getSerializableExtra()方法获取Serializable数据
		Student student=(Student) this.getIntent().getSerializableExtra(key);
		mTextView.setText("Serializable传递过来的数据为:\n"+"id="+student.getId()+"    name="+student.getName());
	}

}

package cc.test.serializable;
import java.io.Serializable;

public class Student implements Serializable {
	private Integer id;
	private String name;
	//注意定义此字段
	public static final long serialVersionUID = 9527L;

	public Student() {
		super();
	}
	

	public Student(Integer id, String name) {
		super();
		this.id = id;
		this.name = name;
	}


	public Integer getId() {
		return id;
	}


	public void setId(Integer id) {
		this.id = id;
	}


	public String getName() {
		return name;
	}


	public void setName(String name) {
		this.name = name;
	}


	@Override
	public String toString() {
		return "Student [id=" + id + ", name=" + name + "]";
	}

}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
   >

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Test Serializable" 
        android:layout_centerInParent="true"
    />

</RelativeLayout>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
   >

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
    />

</RelativeLayout>