title: Horizontal scroll in GridView in android
body: <p>I want to display image thumbnails in a gridview in one column with a horizontal scroll. I have played with many parameters but I can't figure out what I am doing wrong. Kindly someone help me.
  main.xml:</p>
  
  <pre><code>    &lt;LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      android:orientation="vertical"&gt;
  
      &lt;GridView
          android:layout_width="500dp"
          android:layout_height="400dp"
          android:id="@+id/grid"
          android:columnWidth="300dp"
          android:padding="5dp"
          android:horizontalSpacing="10dp"
          android:verticalSpacing="10dp"
          android:scrollbars="horizontal"
          android:stretchMode="spacingWidthUniform"&gt;
      &lt;/GridView&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>Activity Code:</p>
  
  <pre><code>//---the images to display---
  Integer[] imageIDs = {
          R.drawable.library,
          R.drawable.library,
          R.drawable.library,
          R.drawable.library,
          R.drawable.library,
          R.drawable.library,
          R.drawable.library                   
  };
  
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
  
      GridView gridView = (GridView) findViewById(R.id.grid);
      gridView.setAdapter(new ImageAdapter(this));
      gridView.setNumColumns(imageIDs.length);
  
  }
  
  public class ImageAdapter extends BaseAdapter
  {
      private Context context;
  
      public ImageAdapter(Context c)
      {
          context = c;
      }
  
      public int getCount() {
          return imageIDs.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;
          if (convertView == null) {
              imageView = new ImageView(context);
              imageView.setLayoutParams(new GridView.LayoutParams(100, 100));
              imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
          } else {
              imageView = (ImageView) convertView;
          }
          imageView.setImageResource(imageIDs[position]);
          return imageView;
      }
  } 
  </code></pre>