Source Code : Android Gallery ImageView

Android Gallery ImageView

Now we are going to see a simple gallery example of how to use gallery look like a photo album as like in our phone. That is, when we click the item in gallery, the corresponding image will display below in full size using imageview.
Create a attrs.xml file in res/values folder. This file is used to declare the style. ( Code in previous post - simple gallery example).
Main.xml

 android:layout_width="fill_parent" android:layout_height="fill_parent"
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical">
   android:id="@+id/examplegallery" android:layout_width="fill_parent"
  android:layout_height="wrap_content" />
   android:layout_width="wrap_content" android:layout_height="wrap_content"/>

Java file
public class GalleryExample extends Activity {
  private Gallery gallery;
  private ImageView imgView;
private Integer[] Imgid = {
  R.drawable.a_1, R.drawable.a_2, R.drawable.a_3, R.drawable.a_4, R.drawable.a_5, R.drawable.a_6, R.drawable.a_7
  };
@Override
  public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
imgView = (ImageView)findViewById(R.id.ImageView01);
  imgView.setImageResource(Imgid[0]);
gallery = (Gallery) findViewById(R.id.examplegallery);
  gallery.setAdapter(new AddImgAdp(this));
gallery.setOnItemClickListener(new OnItemClickListener() {
  public void onItemClick(AdapterView parent, View v, int position, long id) {
  imgView.setImageResource(Imgid[position]);
  }
  });
}
public class AddImgAdp extends BaseAdapter {
  int GalItemBg;
  private Context cont;
public AddImgAdp(Context c) {
  cont = c;
  TypedArray typArray = obtainStyledAttributes(R.styleable.GalleryTheme);
  GalItemBg = typArray.getResourceId(R.styleable.GalleryTheme_android_galleryItemBackground, 0);
  typArray.recycle();
  }
public int getCount() {
  return Imgid.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 imgView = new ImageView(cont);
imgView.setImageResource(Imgid[position]);
  imgView.setLayoutParams(new Gallery.LayoutParams(80, 70));
  imgView.setScaleType(ImageView.ScaleType.FIT_XY);
  imgView.setBackgroundResource(GalItemBg);
return imgView;
  }
  }}