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    <p>Try this...</p> <pre><code> public class GalleryAdapter extends Activity { private int count; private Bitmap[] thumbnails; private boolean[] thumbnailsselection; private String[] arrPath; private ImageAdapter imageAdapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.image_selector); final String[] columns = { MediaStore.Images.Media.DATA,MediaStore.Images.Media._ID }; final String orderBy = MediaStore.Images.Media._ID; Cursor imagecursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, columns, null,null,orderBy); int image_column_index = imagecursor.getColumnIndex(MediaStore.Images.Media._ID); this.count = imagecursor.getCount(); this.thumbnails = new Bitmap[this.count]; this.arrPath = new String[this.count]; this.thumbnailsselection = new boolean[this.count]; for (int i = 0; i &lt; this.count; i++) { imagecursor.moveToPosition(i); int id = imagecursor.getInt(image_column_index); int dataColumnIndex = imagecursor.getColumnIndex(MediaStore.Images.Media.DATA); thumbnails[i] = MediaStore.Images.Thumbnails.getThumbnail( getApplicationContext().getContentResolver(), id, MediaStore.Images.Thumbnails.MICRO_KIND, null); arrPath[i] = imagecursor.getString(dataColumnIndex); } GridView imagegrid = (GridView) findViewById(R.id.PhoneImageGrid); imageAdapter = new ImageAdapter(); imagegrid.setAdapter(imageAdapter); imagecursor.close(); final Button selectBtn = (Button) findViewById(R.id.selectBtn); selectBtn.setOnClickListener(new OnClickListener() { public void onClick(View v) { final int len = thumbnailsselection.length; int cnt = 0; String selectImages = ""; for (int i = 0; i &lt; len; i++){ if (thumbnailsselection[i]) { cnt++; selectImages = selectImages + arrPath[i] + "|"; } } if (cnt == 0) { Toast.makeText(getApplicationContext(), "Please select at least one image", Toast.LENGTH_LONG).show(); } else { Toast.makeText(getApplicationContext(), "You've selected Total " + cnt + " image(s).",Toast.LENGTH_LONG).show(); Log.d("SelectedImages", selectImages); } } }); } public class ImageAdapter extends BaseAdapter { private LayoutInflater mInflater; public ImageAdapter() { mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); } public int getCount() { return count; } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { holder = new ViewHolder(); convertView = mInflater.inflate(R.layout.gallery_item,null); holder.imageview = (ImageView) convertView.findViewById(R.id.thumbImage); holder.checkbox = (CheckBox) convertView.findViewById(R.id.itemCheckBox); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } holder.checkbox.setId(position); holder.imageview.setId(position); holder.checkbox.setOnClickListener(new OnClickListener() { public void onClick(View v) { CheckBox cb = (CheckBox) v; int id = cb.getId(); if (thumbnailsselection[id]) { cb.setChecked(false); thumbnailsselection[id] = false; } else { cb.setChecked(true); thumbnailsselection[id] = true; } } }); holder.imageview.setOnClickListener(new OnClickListener() { public void onClick(View v) { int id = v.getId(); Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setDataAndType(Uri.parse("file://" + arrPath[id]),"image/*"); startActivity(intent); } }); holder.imageview.setImageBitmap(thumbnails[position]); holder.checkbox.setChecked(thumbnailsselection[position]); holder.id = position; return convertView; } } class ViewHolder { ImageView imageview; CheckBox checkbox; int id; } } </code></pre> <p>image_selector.xml</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"&gt; &lt;Button android:id="@+id/selectBtn" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Select" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:minWidth="200px" /&gt; &lt;GridView android:id="@+id/PhoneImageGrid" android:layout_width="fill_parent" android:layout_height="fill_parent" android:numColumns="auto_fit" android:verticalSpacing="10dp" android:horizontalSpacing="10dp" android:columnWidth="90dp" android:stretchMode="columnWidth" android:gravity="center" android:layout_above="@id/selectBtn" /&gt; &lt;/RelativeLayout&gt; </code></pre> <p>gallery_item.xml</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"&gt; &lt;ImageView android:id="@+id/thumbImage" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" /&gt; &lt;CheckBox android:id="@+id/itemCheckBox" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_alignParentTop="true" /&gt; &lt;/RelativeLayout&gt; </code></pre>
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    1. POset custom backgound for android app on the fly
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    1. COHi thank you for your reply. I have a "change background button on clicking it i should be able to browse for images.
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    2. COcheck now,i changed the answer..!
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    3. COsorry to bug you, but iam new to this i think a few packages are missing, say holder
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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