android 用Parcelable传递复…

//主界面布局只有一个button，用来跳转到另外一个activity
 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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    
        android:id="@+id/sendobj"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/sendobj" />

//接收复杂数据类型的activity的布局文件，这里主要是接收一个Bitmap对象

 xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >
 
    
        android:id="@+id/imgview"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:contentDescription="@string/hello_world"
        android:paddingLeft="10dp"
        android:paddingRight="10dp" />
 
    
        android:id="@+id/txtview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/imgview"
        android:paddingBottom="10dp"
        android:textColor="#CC0033"
        android:textSize="16dp" />

//创建一个bean类
package com.example.passobjdemo;
import android.graphics.Bitmap;
public class ObjBean {
        
        private int id;
        private String name;
        private double price;
        private Bitmap bitmap;
        
        public int getId() {
                return id;
        }
        public void setId(int id) {
                this.id = id;
        }
        public String getName() {
                return name;
        }
        public void setName(String name) {
                this.name = name;
        }
        public double getPrice() {
                return price;
        }
        public void setPrice(double price) {
                this.price = price;
        }
        public Bitmap getBitmap() {
                return bitmap;
        }
        public void setBitmap(Bitmap bitmap) {
                this.bitmap = bitmap;
        }
        public String toString() {
                return "id=" + id + ", name=" + name + ", price=" + price;
        }
}

package com.example.passobjdemo;

import android.graphics.Bitmap;
import android.os.Parcel;
import android.os.Parcelable;


public class ParcelableUtil implements Parcelable {
        
        private ObjBean objBean;
        
        public ObjBean getObjBean() {
                return objBean;
        }
        
        public ParcelableUtil(ObjBean objBean) {
                super();
                this.objBean = objBean;
        }
        
        private ParcelableUtil(Parcel in) {
                objBean = new ObjBean();
                objBean.setId(in.readInt());
                objBean.setName(in.readString());
                objBean.setPrice(in.readDouble());
                objBean.setBitmap((Bitmap) in.readParcelable(Bitmap.class.getClassLoader()));
        }

        @Override
        public int describeContents() {
                return 0;
        }

        
        @Override
        public void writeToParcel(Parcel in, int flags) {
                in.writeInt(objBean.getId());
                in.writeString(objBean.getName());
                in.writeDouble(objBean.getPrice());
                in.writeParcelable(objBean.getBitmap(), PARCELABLE_WRITE_RETURN_VALUE);

        }

        
        public static final Parcelable.Creator<</span>ParcelableUtil> CREATOR = 
                        new Parcelable.Creator<</span>ParcelableUtil>() {

                                @Override
                                public ParcelableUtil createFromParcel(Parcel source) {
                                        return new ParcelableUtil(source);
                                }

                                @Override
                                public ParcelableUtil[] newArray(int size) {
                                        return new ParcelableUtil[size];
                                }
                        };
}

package com.example.passobjdemo;

import java.io.InputStream;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity implements OnClickListener{
        
        private Button sendobj;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.activity_main);
                
                sendobj = (Button) findViewById(R.id.sendobj);
                sendobj.setOnClickListener(this);
        }

        @Override
        public void onClick(View v) {
                if (v.getId() == R.id.sendobj) {
                        ObjBean bean = new ObjBean();
                        bean.setId(1);
                        bean.setName("Android smart Phone");
                        bean.setPrice(999.99);
                        
                        InputStream is = getResources().openRawResource(R.raw.amz);
                        Bitmap bit = BitmapFactory.decodeStream(is);
                        bean.setBitmap(bit);
                        
                        ParcelableUtil pUtil = new ParcelableUtil(bean);
                        
                        Intent intent = new Intent(MainActivity.this, AnotherActivity.class);
                        intent.putExtra("objbean", pUtil);//将ParcelableUtil对象put到intent中
                        startActivity(intent);
                }
        }

}

package com.example.passobjdemo;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.TextView;

public class AnotherActivity extends Activity {
        
        private ImageView imgView;
        private TextView txtView;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.another);
                imgView = (ImageView) findViewById(R.id.imgview);
                txtView = (TextView) findViewById(R.id.txtview);
                
                Intent intent = getIntent();
                //获取从mainactivity传过来的ParcelableUtil对象
                ParcelableUtil pu = (ParcelableUtil) intent.getParcelableExtra("objbean");
                ObjBean bean = pu.getObjBean();
                
                //显示值
                imgView.setImageBitmap(bean.getBitmap());
                txtView.setText(bean.getName() + "\n" + bean.getPrice());
                
        }


}