m0

  <LinearLayout android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:paddingRight="6dip"
                android:paddingLeft="6dip"
                android:orientation="horizontal"
                android:background="@drawable/header_gradient" >
    <RelativeLayout android:layout_height="fill_parent"
                    android:layout_width="fill_parent"
                    android:layout_weight="1">
      <EditText android:id="@+id/search_text"
                android:layout_height="fill_parent"
                android:layout_width="fill_parent"
                android:layout_marginTop="6dip"
                android:hint="@string/search"
                android:ellipsize="end"
                android:textSize="18sp"
                android:textStyle="normal"
                android:imeOptions="actionDone|actionSearch"
                android:inputType="text|textAutoComplete"
                android:singleLine="true"
                android:focusable="true" />
      <ImageView android:id="@+id/search_spinner"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_alignParentRight="true"
                 android:layout_marginTop="20dip"
                 android:layout_marginRight="15dip"
                 android:background="@drawable/spinner_black"
                 android:visibility="invisible"/>
    </RelativeLayout>
    <ImageButton android:id="@+id/search_button"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="6dip"
                 android:layout_marginBottom="6dip"
                 android:paddingRight="5dip"
                 android:paddingLeft="5dip"
                 android:layout_weight="0"
                 android:tint="#fff"
                 android:background="@drawable/btn_search_background"
                 android:src="@drawable/btn_search"
                 android:layout_marginRight="-4dip"/>
  </LinearLayout>