Android 开发中使用Intent传递数据的方法

Activity之间经过Intent传递值，支持基本数据类型和String对象及它们的数组对象byte、byte[]、char、char[]、boolean、boolean[]、short、short[]、int、int[]、long、long[]、float、float[]、double、double[]、String、String[]，还有采用实现Serializable、Parcelable接口的类对象传递数据的两种方法：一种是Bundle.putSerializable(Key,Object);另外一种是Bundle.putParcelable(Key, Object)

例如：

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);  
    }  
}

实现Serializable接口：

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;  
    }  
      
}

 

这样在Activity中就可编写传递数据代码：

Intent mIntent = new Intent(this, 地址Activity.class);  
    Bundle mBundle = new Bundle();  
    //采用parcelable传输数据
    mBundle.putParcelable("data", mBook);  
    //采用serializable传输数据
    mBundle.putSerializable("data", items);
    mIntent.putExtras(mBundle);  
          
    startActivity(mIntent);

接受数据能够采用：

Intent intent = getIntent();
ArrayList<Map<String, String>> items = (ArrayList<Map<String, String>>)intent.getExtras().get("data");