Android widget-Gallary

main.xml



<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <Gallery xmlns:android="http://schemas.android.com/apk/res/android"
   android:id="@+id/gallery"
   android:layout_width="fill_parent"
    android:layout_height="wrap_content"
/>
 
    <ImageView
        android:id="@+id/img"
        android:scaleType="fitXY"
     android:layout_width="fill_parent"
    android:layout_height="wrap_content"
/>

</LinearLayout>



GallaryActivity.java



package com.gallery;

import android.app.Activity;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.AdapterView.OnItemClickListener;

public class GalleryActivity extends Activity {
    /** Called when the activity is first created. */

private int animalid[] = {
R.drawable.dogs,R.drawable.dolphin,R.drawable.horse,
R.drawable.lion,R.drawable.penguin,R.drawable.tiger,
R.drawable.zebra
};

Gallery gallery;
ImageView img;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
     
     
        gallery = (Gallery)findViewById(R.id.gallery);
        img = (ImageView)findViewById(R.id.img);
        gallery.setAdapter(new ImageAdapter(this));
     
        gallery.setOnItemClickListener(new OnItemClickListener()
        {
            public void onItemClick(AdapterView parent, View v, int position, long id)
            {
                //Toast.makeText(HelloGallery.this, "" + position, Toast.LENGTH_SHORT).show();
            img.setImageResource(animalid[position]);
            }
        });

     
    }
 
    public class ImageAdapter extends BaseAdapter {
        int mGalleryItemBackground;
        private Context mContext;
     
        public ImageAdapter(Context c) {
            mContext = c;
            TypedArray attr = mContext.obtainStyledAttributes(R.styleable.HelloGallery12);
            mGalleryItemBackground = attr.getResourceId(
                    R.styleable.HelloGallery12_android_galleryItemBackground, 0);
            attr.recycle();
        }

        public int getCount() {
            return animalid.length;
        }

        public Object getItem(int position) {
            return position;
        }

        public long getItemId(int position) {
            return position;
        }

        public View getView(int position, View convertView, ViewGroup parent) {
            ImageView imageView = new ImageView(mContext);

            imageView.setImageResource(animalid[position]);
            imageView.setLayoutParams(new Gallery.LayoutParams(150, 100));
            imageView.setScaleType(ImageView.ScaleType.FIT_XY);
            imageView.setBackgroundResource(mGalleryItemBackground);

            return imageView;
        }
    }
}


output:-

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