リストビューで使用されるlinearlayoutの高さを変更したいそのレイアウトの高さと幅を変更するにはどうすればよいですか?コードをここに配置しますが、linearlayoutの高さは変更しませんこれを行う方法
ホーム.xml
 <LinearLayout    
       android:id="@+id/homelistlayout1"
       android:layout_width="fill_parent"
       android:layout_height="wrap_content"
       android:layout_weight="1"
                                          >
             <ListView
            android:id="@+id/listadd1"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                >
         </ListView>
</LinearLayout>   
ホームリスト.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/mainlayout"
    android:layout_width="match_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:weightSum="5"
    android:background="@color/color_advertise"
     >
       <LinearLayout   android:id="@+id/layoutadvertise"
                       android:layout_width="fill_parent"
                       android:layout_height="wrap_content"
                       android:layout_weight="3"
                       android:padding="2dp"
                     >
                    <ImageView
                            android:id="@+id/imageadvertise"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:scaleType="fitXY"
                            android:src="@drawable/adv" />      
      </LinearLayout>
    <LinearLayout   android:id="@+id/layoutpromotional"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:padding="1dp"
                     >
                     <TextView
                             android:id="@+id/textpromotional"
                             android:layout_width="wrap_content"
                             android:layout_height="wrap_content"
                             android:text="Medium Text"
                             android:textColor="@android:color/white"
                             android:textSize="12sp" />   
    </LinearLayout>
    <RelativeLayout     android:id="@+id/layoutdistance"   
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:orientation="horizontal"
                        android:layout_weight="1"
                     >
                    <TextView
                             android:id="@+id/textdistance"
                             android:layout_width="wrap_content"
                             android:layout_height="wrap_content"
                             android:layout_alignParentLeft="true"
                             android:text="Distance :"
                             android:textColor="@color/color_orange" 
                             android:textSize="12sp" />   
                    <TextView
                             android:id="@+id/textkm"
                             android:layout_width="wrap_content"
                             android:layout_height="wrap_content"
                             android:text="15km"
                             android:textColor="@color/color_orange" 
                             android:layout_toRightOf="@id/textdistance"
                             android:textSize="12sp" />
                    <ImageView
                            android:id="@+id/imagestipciate"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_alignParentRight="true"
                            android:src="@drawable/stipciate" />    
    </RelativeLayout>     
</LinearLayout>
AdapterClass.java
public class LazyAdapterHomeAdvertise extends BaseAdapter {
    private static final String TAG_SHOWTEXT="showtext";
    String showtext;
    private static final String TAG_PRODUCTINFO="product_info";
    String productinfo;
    private static final String TAG_THUMBIMAGE="thumbsrc";
    String thumbimage;
    private static final String TAG_DISTANCE="distance";
    private Activity activity;
    private ArrayList<HashMap<String, String>> result; 
    private static LayoutInflater inflater=null;
    public GridImageLoader gridimageLoader; 
    int imageWidth;
    int imageheight;
    Context context; 
    int width;
    int height;
    public LazyAdapterHomeAdvertise(Activity a, ArrayList<HashMap<String, String>> r) {
        activity = a;
        result=r;
        inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        gridimageLoader=new GridImageLoader(activity.getApplicationContext());
        width = a.getWindowManager().getDefaultDisplay().getWidth();
        height=a.getWindowManager().getDefaultDisplay().getHeight();
        imageWidth = ((width/2)-5);
        imageheight=(height*25)/100;
    }
    public int getCount() {
        return result.size();
    }
    public Object getItem(int position) {
        return position;
    }
    public long getItemId(int position) {
        return position;
    }
    public static class ViewHolder
    {
        public TextView textpromotional;
        public TextView textkm;
        public ImageView imageadvertise;
    }
    public View getView(int position, View convertView, ViewGroup parent) {
        View vi=convertView;
        LinearLayout main =(LinearLayout)vi.findViewById(R.id.mainlayout);
        main.setLayoutParams(new LinearLayout.LayoutParams(imageWidth, imageheight));
        ViewHolder holder;
        if(convertView==null)
        {
            vi = inflater.inflate(R.layout.homelist, null);
            holder=new ViewHolder();
            holder.textpromotional=(TextView)vi.findViewById(R.id.textpromotional);
            holder.textkm=(TextView)vi.findViewById(R.id.textkm);
            holder.imageadvertise=(ImageView)vi.findViewById(R.id.imageadvertise);
            vi.setTag(holder);
        }
        else
            holder=(ViewHolder)vi.getTag();
        holder.textpromotional.setText(result.get(position).get(TAG_SHOWTEXT));
        holder.textkm.setText(result.get(position).get(TAG_DISTANCE));
        holder.imageadvertise.setTag(result.get(position).get(TAG_THUMBIMAGE));
        gridimageLoader.DisplayImage(result.get(position).get(TAG_THUMBIMAGE), activity, holder.imageadvertise);
        return vi;
    }
    public static float convertDpToPixel(float dp, Context context){
        Resources resources = context.getResources();
        DisplayMetrics metrics = resources.getDisplayMetrics();
        float px = dp * (metrics.densityDpi/160f);
        return px;
    }
}