Creating gridview with 3 rows of imageviews that f

I have been searching everywhere for similar solutions but none seem to work for me.

On my first screen I will have a gridview which consists of 1 column and 3 rows vertically. Each row will have an imageview and a partially transparent textview on top of the text view. The imageviews span the screen width fine. My only problem is that the 3 image views do not span the full screen vertically, there is space inbetween rows, although I have tried many methods to fix this. I will post up my xml files and code:

row_layout.xml - this is the gridview items

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >

<ImageView
    android:id="@+id/item_image"
    android:adjustViewBounds="true"
    android:scaleType="fitXY"
    android:layout_width="fill_parent"
    android:layout_height="180dp"
    android:src="@drawable/season1">
</ImageView>

<TextView
    android:id="@+id/item_text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/item_image"
    android:layout_alignTop="@+id/item_image"
    android:layout_alignRight="@+id/item_image"
    android:layout_alignBottom="@+id/item_image"
    android:gravity="bottom|left"
    android:textSize="30sp"
    android:textAlignment="center"
    android:lines="1"
    android:layout_marginTop="145dp"
    android:background="#99000000">


</TextView>

main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="fill_parent"
tools:context=".MainActivity" >

<GridView
    android:id="@+id/gridView1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_margin="0dp"
    android:padding="0dp"
    android:gravity="center"
    android:numColumns="1"
    android:fitsSystemWindows="true"
    android:stretchMode="columnWidth" >
</GridView>

My custom adapter:

public class CustomGridViewAdapter extends ArrayAdapter<Item> {
Context context;
int layoutResourceId;
ArrayList<Item> data = new ArrayList<Item>();

public CustomGridViewAdapter(Context context, int layoutResourceId, ArrayList<Item> data) {
    super(context, layoutResourceId, data);
    this.layoutResourceId = layoutResourceId;
    this.context = context;
    this.data = data;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View row = convertView;
    RecordHolder holder = null;

    if (row == null) {
        LayoutInflater inflater = ((Activity) context).getLayoutInflater();
        row = inflater.inflate(layoutResourceId, parent, false);
        row.setMinimumHeight(MainActivity.height1/3);

        holder = new RecordHolder();
        holder.txtTitle = (TextView) row.findViewById(R.id.item_text);
        holder.imageItem = (ImageView) row.findViewById(R.id.item_image);
        row.setTag(holder);
    } else {
        holder = (RecordHolder) row.getTag();
    }

    Item item = data.get(position);
    holder.txtTitle.setText(item.getTitle());
    holder.imageItem.setImageBitmap(item.getImage());// my image
    return row;

}

static class RecordHolder {
    TextView txtTitle;
    ImageView imageItem;

}

}

MainActivity:

public class MainActivity extends ActionBarActivity {

GridView gridView;
ArrayList<Item> gridArray = new ArrayList<Item>();
CustomGridViewAdapter customGridAdapter;
public static int height1;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //this.requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.main);

    ActionBar ab = getActionBar();
    ab.setDisplayShowTitleEnabled(false);
    ab.setDisplayShowHomeEnabled(false);

    Resources res = this.getResources();

    Bitmap bMap = BitmapFactory.decodeResource(res, R.drawable.actionbar);
    BitmapDrawable actionBarBackground = new BitmapDrawable(res, bMap);
    ab.setBackgroundDrawable(actionBarBackground);

    //set grid view item

    Bitmap season1Icon = BitmapFactory.decodeResource(res, R.drawable.season1);
    Bitmap season2Icon = BitmapFactory.decodeResource(res, R.drawable.season2);
    Bitmap season3Icon = BitmapFactory.decodeResource(res, R.drawable.season3);


    gridArray.add(new Item(season1Icon,"Season 1"));
    gridArray.add(new Item(season2Icon,"Season 2"));
    gridArray.add(new Item(season3Icon,"Season 3"));

    DisplayMetrics metrics = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(metrics);
    height1 = metrics.heightPixels;

    gridView = (GridView) findViewById(R.id.gridView1);
    customGridAdapter = new CustomGridViewAdapter(this, R.layout.row_grid, gridArray);

    gridView.setAdapter(customGridAdapter);

    gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View v,
                                int position, long id) {
            Intent a = new Intent(MainActivity.this, House.class);
            a.putExtra("Position", position);
            startActivity(a);
        }

    });
}

}

Any help will be greatly appreciated, I've spent hours trying to fix this!

Dynamically set the layout params of your imageview, once you know the height of the screen.

if (row == null) {
    LayoutInflater inflater = ((Activity) context).getLayoutInflater();
    row = inflater.inflate(layoutResourceId, parent, false);
    //row.setMinimumHeight(MainActivity.height1/3);  //don't need this, since wrap content will make the row height match your image view's

    holder = new RecordHolder();
    holder.txtTitle = (TextView) row.findViewById(R.id.item_text);
    holder.imageItem = (ImageView) row.findViewById(R.id.item_image);

    holder.imageItem.setLayoutParams(new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, MainActivity.height1/3);
    row.setTag(holder);
} else {
    holder = (RecordHolder) row.getTag();
}