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android - How to center a textview inside a linearlayout

I have the following layout i'd like to make the textview appear in the center and middle of the view. How can i acheive this?

I've tried adjusting the various gravity attributes when looking at the layout in graphical view, but nothing seems to change it. I'd like the textview in the center which i've done but halfway down the view.

thanks matt.

<?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="match_parent"
    android:orientation="vertical"
    android:background="@drawable/carefreebgscaledalphajpg" >



    <TextView
        android:id="@+id/textviewdatefornocallspage"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="You have no calls for "
        android:textSize="25sp" />

</LinearLayout>
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set the gravity to center in your linearLayout tag :

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
     android:gravity="center"
    android:background="@drawable/carefreebgscaledalphajpg" >

or use a RelativeLayout like this :

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/carefreebgscaledalphajpg" >



    <TextView
        android:id="@+id/textviewdatefornocallspage"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:text="You have no calls for "
        android:textSize="25sp" />

</RelativeLayout>

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