<android.support.v7.widget.Toolbar   
android:id="@+id/toolbar"   
 android:layout_height="wrap_content"   
 android:layout_width="match_parent"    
android:minHeight="?android:attr/actionBarSize"    
android:background="@color/action_bar_bkgnd"    
app:theme="@style/ToolBarTheme" >

<TextView        
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"
        android:text="Toolbar Title"
        android:layout_gravity="center"
        android:id="@+id/toolbar_baslik" />
</android.support.v7.widget.Toolbar>

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar_top);
TextView mTitle = (TextView) toolbar_baslik.findViewById(R.id.toolbar_title);