如何在兩個activity中傳資料

轉自http://jinguo.iteye.com/blog/718742

首先定義一個自訂類。注意紅色部分。
public class MyClass implements Serializable{
private int number;
private int max;
private int min;
private ArrayList<String> url;

public void SetNumber(int number)
{
  this.number = number;
}

public void SetMax(int max)
{
  this.max = max;
}

public void SetMin(int min)
{
  this.min = min;
}

public void SetUrl(ArrayList<String> url)
{
  this.url = url;
}

public int GetNumber()
{
  return number;
}

public int GetMax()
{
  return max;  
}

public int GetMin()
{
  return min;
}

public ArrayList GetUrl()
{
  return url;
}

}

然後建立2個Activity,來傳遞資料。
發送部分代碼：
Intent intent = new Intent();
intent.setClass(TestActivity.this, OtherActivity.class);
intent.putExtra("myclass", myclass);
startActivity(intent);

接收部分代碼：
Intent intent = getIntent();        
myclass = (MyClass)intent.getSerializableExtra("myclass");

 

 

Parcelable化
http://blog.csdn.net/Android_Tutor/archive/2010/07/16/5740845.aspx

建兩個類一個是Person.java實現Serializable介面，另一個Book.java實現Parcelable介面，代碼分別如下:

Person.java:

package com.tutor.objecttran;
import java.io.Serializable;
public class Person implements Serializable {
    private static final long serialVersionUID = -7060210544600464481L;
    private String name;
    private int age;
    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;
    }
   
}

Book.java:

 

package com.tutor.objecttran;
import android.os.Parcel;
import android.os.Parcelable;
public class Book implements Parcelable {
    private String bookName;
    private String author;
    private int publishTime;
   
    public String getBookName() {
        return bookName;
    }
    public void setBookName(String bookName) {
        this.bookName = bookName;
    }
    public String getAuthor() {
        return author;
    }
    public void setAuthor(String author) {
        this.author = author;
    }
    public int getPublishTime() {
        return publishTime;
    }
    public void setPublishTime(int publishTime) {
        this.publishTime = publishTime;
    }
   
    public static final Parcelable.Creator<Book> CREATOR = new Creator<Book>() {
        public Book createFromParcel(Parcel source) {
            Book mBook = new Book();
            mBook.bookName = source.readString();
            mBook.author = source.readString();
            mBook.publishTime = source.readInt();
            return mBook;
        }
        public Book[] newArray(int size) {
            return new Book[size];
        }
    };
   
    public int describeContents() {
        return 0;
    }
    public void writeToParcel(Parcel parcel, int flags) {
        parcel.writeString(bookName);
        parcel.writeString(author);
        parcel.writeInt(publishTime);
    }
}

 

 

 

 

 

 

 

 

 

 

 

 

 

package com.tutor.objecttran;
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 ObjectTranDemo extends Activity implements OnClickListener {
   
    private Button sButton,pButton;
    public  final static String SER_KEY = "com.tutor.objecttran.ser";
    public  final static String PAR_KEY = "com.tutor.objecttran.par";
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);  
        setupViews();
       
    }
   
    //我的一貫作風呵呵
    public void setupViews(){
        sButton = (Button)findViewById(R.id.button1);
        pButton = (Button)findViewById(R.id.button2);
        sButton.setOnClickListener(this);
        pButton.setOnClickListener(this);
    }
    //Serializeable傳遞對象的方法
    public void SerializeMethod(){
        Person mPerson = new Person();
        mPerson.setName("frankie");
        mPerson.setAge(25);
        Intent mIntent = new Intent(this,ObjectTranDemo1.class);
        Bundle mBundle = new Bundle();
        mBundle.putSerializable(SER_KEY,mPerson);
        mIntent.putExtras(mBundle);
       
        startActivity(mIntent);
    }
    //Pacelable傳遞對象方法
    public void PacelableMethod(){
        Book mBook = new Book();
        mBook.setBookName("Android Tutor");
        mBook.setAuthor("Frankie");
        mBook.setPublishTime(2010);
        Intent mIntent = new Intent(this,ObjectTranDemo2.class);
        Bundle mBundle = new Bundle();
        mBundle.putParcelable(PAR_KEY, mBook);
        mIntent.putExtras(mBundle);
       
        startActivity(mIntent);
    }
    //銨鈕點擊事件響應
    public void onClick(View v) {
        if(v == sButton){
            SerializeMethod();
        }else{
            PacelableMethod();
        }
    }
}