news_holder.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <android.support.v7.widget.CardView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:cardCornerRadius="@dimen/cardview_default_radius"
        android:layout_margin="5dp">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:layout_margin="5dp">
            <ImageView
                android:id="@+id/imgHolder"
                android:layout_width="match_parent"
                android:layout_height="150dp"
                android:scaleType="fitXY"
                android:src="@drawable/diabetes"/>

            <TextView
                android:id="@+id/newsDesc"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:paddingLeft="5dp"
                android:text="Know Diabetes : Says american scientst at levels of inspection and at perfection "
                android:textColor="@color/darkPrimary"
                android:textSize="20dp" />

            <TextView
                android:id="@+id/newsSrc"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:paddingLeft="5dp"
                android:text="diabetes.co.uk"
                android:textColor="@color/darkSecondary"
                android:textSize="20dp" />


        </LinearLayout>
    </android.support.v7.widget.CardView>

</LinearLayout>