I want to set the Widgets at center_vertical on my horizontal LinearLayout and set the last Textview at right side of parent layout.

I tried it out but I'm having a hard time. I included my code below.

xml layout:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="48dp"
    android:orientation="horizontal"
    android:background="@drawable/list_selector">

    <ImageView
        android:id="@+id/icon"
        android:layout_width="25dp"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_marginLeft="12dp"
        android:layout_marginRight="12dp"
        android:contentDescription="@string/desc_list_item_icon"
        android:src="@drawable/image1"
        android:layout_centerVertical="true" />

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@id/icon"
        android:minHeight="?android:attr/listPreferredItemHeightSmall"
        android:textAppearance="?android:attr/textAppearanceListItemSmall"
        android:textColor="@color/colorPrimary"
        android:layout_centerVertical="true"
        android:text="Hello world"
        android:paddingRight="40dp"/>

    <TextView android:id="@+id/counter"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/counter_bg"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        android:layout_marginRight="8dp"
        android:textColor="@color/counter_text_color"/>

</LinearLayout>

Here is what I'm trying to produce:

android:layout_centerVertical doesn't do anything within a LinearLayout (that's only used in RelativeLayouts)

You'll want to use android:layout_gravity="center_vertical" on the each of the children, or android:gravity="center_vertical" on the LinearLayout

EDIT: And one way to get your last view to stay on the right side of the layout would be to make your title view have the attribute android:weight="1" to make its width expand to fill the layout