Gallery画廊（如iphone拖动相片特效）

XML文件

<?xml version="1.0" encoding="utf-8"?><AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <TextView        android:layout_x="100px"        android:layout_y="10px"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="拖动图片演示" />     <Gallery        android:layout_y="100px"     android:id="@+id/myGallery1"   android:layout_width="fill_parent"   android:layout_height="wrap_content"   android:gravity="bottom" /> </AbsoluteLayout>

java文件

package com.wenming;import android.R.anim;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Gallery;import android.widget.ImageButton;import android.widget.ImageView;public class GalleryActivity extends Activity {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        Gallery gallery=(Gallery) findViewById(R.id.myGallery1);        gallery.setAdapter(new Image(this));    }    public class Image extends BaseAdapter{    private Context mycontext;   /* 使用android.R.drawable里的图标作为资源*/    private int[] mypic={    android.R.drawable.btn_minus,    android.R.drawable.bottom_bar,    android.R.drawable.btn_radio,    android.R.drawable.btn_star    };    /*构造只有一个参数的函数*/public Image(Context c) {super();// TODO Auto-generated constructor stubthis.mycontext=c;}/*返回已经定义了的图片数量*/public int getCount() {// TODO Auto-generated method stubreturn mypic.length;}/*利用getItem方法取得目前容器的图片的数组id*/public Object getItem(int position) {// TODO Auto-generated method stubreturn position;}public long getItemId(int position) {// TODO Auto-generated method stubreturn position;}/*取得目前欲显示的图片的View，传入数组id值使之读取成像*/public View getView(int position, View convertView, ViewGroup parent) {/*创建一个ImageView对象*/ImageView imageView=new ImageView(this.mycontext);imageView.setImageResource(this.mypic[position]);imageView.setScaleType(ImageView.ScaleType.FIT_XY);/*设置ImageView对象的宽高，单位是dip*/imageView.setLayoutParams(new Gallery.LayoutParams(120, 120));return imageView;}        }}

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java代码

package com.wenming;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.BaseAdapter;import android.widget.Gallery;import android.widget.Gallery.LayoutParams;import android.widget.ImageView;import android.widget.Toast;public class GalleryandAdapterActivity extends Activity {    /** Called when the activity is first created. */private Gallery gallery;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        gallery=(Gallery) findViewById(R.id.gallery);        gallery.setAdapter(new imageadpter(this));        gallery.setOnItemClickListener(new OnItemClickListener() {public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {// TODO Auto-generated method stubToast.makeText(GalleryandAdapterActivity.this, "你选择的是"+arg2+"号", Toast.LENGTH_SHORT).show();}});            }    public class imageadpter extends BaseAdapter{    private Context context;    private int[] imageid={    R.drawable.img1,    R.drawable.img2,    R.drawable.img3    };    public imageadpter(Context c) {// TODO Auto-generated constructor stub    context=c;}public int getCount() {// TODO Auto-generated method stubreturn imageid.length;}public Object getItem(int arg0) {// TODO Auto-generated method stubreturn arg0;}public long getItemId(int position) {// TODO Auto-generated method stubreturn position;}public View getView(int position, View convertView, ViewGroup parent) {// TODO Auto-generated method stubImageView imageView=new ImageView(context);/*设置图片给imageView对象*/imageView.setImageResource(imageid[position]);/*设置图片的宽高*/imageView.setScaleType(ImageView.ScaleType.FIT_XY);/*设置layout的宽高*/imageView.setLayoutParams(new LayoutParams(136, 88));return imageView;}        }}

效果如下