Android 用Intent 传递对象之 Serializable

win多多多 lv.2

发布时间：2022-11-12 20:07:57 285

相关标签： # java# java# android

只是一个入门的小例子。没有弄太花哨。

程序结构：

Android 用Intent 传递对象之 Serializable_android

Person 就是实现Serializable 接口的对象。

Person.java

class Person implements Serializable {

  private static final String TAG = "Person";
  private static final long serialVersionUID = 1L;
  int ID;
  String Name;
  int age;

  public Person(int ID, String Name, int age) {
    this.ID = ID;
    this.Name = Name;
    this.age = age;
  }

  public void printPerson() {
    Log.d(TAG, "ID:" + ID);
    Log.d(TAG, "Name:" + Name);
    Log.d(TAG, "age:" + age);
  }
}

MainActivity.java

package com.serializabletest;

import java.io.IOException;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.View;

public class MainActivity extends Activity {

  public static final String TAG = "MainActivity";
  /** 序列化测试
   * @see android.app.Activity#onCreate(android.os.Bundle)
   */
  private final String objName = "/mnt/sdcard/object.txt";

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setTitle("Intent 传递对象");
    setContentView(R.layout.activity_main);

  }

  public void onBtnClick(View view) throws IOException {

    Person person = new Person(1, "张三", 26);
    person.printPerson();
    Bundle bundle = new Bundle();
    bundle.putSerializable("person", person);
    Intent intent = new Intent(MainActivity.this, SecondActivity.class);
    intent.putExtras(bundle);
    startActivity(intent);
  }
}

SecondActivity.java

package com.serializabletest;

import java.io.IOException;
import java.io.StreamCorruptedException;

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

public class SecondActivity extends Activity {

  public static final String TAG = "MainActivity";
  /** 序列化测试
   * @see android.app.Activity#onCreate(android.os.Bundle)
   */
  private final String objName = "/mnt/sdcard/object.txt";

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setTitle("Intent 传递对象");
    setContentView(R.layout.activity_second);

    Intent intent = getIntent();
    Bundle bundle = intent.getExtras();
    Person person = (Person) bundle.getSerializable("person");
    person.printPerson();
 }

  public void onBtnClick(View view) throws StreamCorruptedException,
      IOException, ClassNotFoundException {
    this.finish();
  }

}

文章来源： https://blog.51cto.com/u_13316945/5832078

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