programmatically set margin/ padding of textview in a listview

This is a part of main_alllatestnews.xml

<LinearLayout
    android:id="@+id/layout_content"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_above="@id/layout_menu"
    android:layout_below="@id/layout_title"
    android:orientation="vertical" >
    <ListView
        android:id="@android:id/list"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" >
    </ListView>
</LinearLayout>

This is full of main_alllatestnewslist.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout_temp"
android:layout_width="fill_parent"
android:layout_height="100px"
android:background="@drawable/background_news_list" >

<ImageView
    android:id="@+id/image_alllatestnewstitle"
    android:layout_width="134px"
    android:layout_height="80px"
    android:layout_marginBottom="5px"
    android:layout_marginLeft="10px"
    android:layout_marginRight="10px"
    android:layout_marginTop="5px"
    android:scaleType="centerCrop" />

<LinearLayout
    android:id="@+id/test"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/text_particularlatestnewstitle"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textColor="#000000"
        android:textSize="25px" />

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="25px" >

        <TextView
            android:id="@+id/text_newsdate"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#999999"
            android:textSize="15px" />

        <TextView
            android:id="@+id/text_new