xml - Android center textview in custom ActionBar using a linearlayout horizontally and vertically -

i'm trying since several hours center title in action bar horizontally. code:

  <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"             android:id="@+id/actionbar"             android:layout_width="match_parent"             android:layout_height="match_parent"             android:baselinealigned="false"             android:layout_gravity="center"             android:gravity="center">              <textview                   android:id="@+id/activitytitle"                 android:layout_height="wrap_content"                 android:layout_width="wrap_content"                 android:textsize="20sp"                 android:textcolor="#ffffff" />     </linearlayout> 

and oncreate() code in activity:

        this.getactionbar().setdisplayshowcustomenabled(true);         this.getactionbar().setdisplayshowtitleenabled(false);          layoutinflater inflator = layoutinflater.from(this);         view v = inflator.inflate(r.layout.custom_action_bar, null);          typeface tf = typeface.createfromasset(getassets(),"font/myfont.ttf");         ((textview)v.findviewbyid(r.id.activitytitle)).settypeface(tf);         ((textview)v.findviewbyid(r.id.activitytitle)).settext("test");          getactionbar().setcustomview(v);         getactionbar().setdisplayshowhomeenabled(false); 

the actionbar icon hided , title in correct font, centered vertically, not horizontally. how can that?

you use relativelayout , properties

android:layout_centerhorizontal="true"     

and

android:layout_centervertical="true" 

for example:

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     android:id="@+id/actionbar"     android:layout_width="match_parent"     android:layout_height="wrap_content" >      <textview         android:id="@+id/activitytitle"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_centerhorizontal="true"         android:layout_centervertical="true"         android:text="jorgesys here!"         android:textcolor="#ffffff"         android:textsize="20sp" />  </relativelayout>