How do I center text horizontally and vertically in a TextView?

If you are using TableLayout make sure to set the gravity of the TableRows to center, too. Otherwise it will not work. At least it didn't work with me until I set the gravity of the TableRow to center.

For example, like this:

<TableRow android:id="@+id/tableRow2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center">        
    <TextView android:text="@string/chf" android:id="@+id/tv_chf" android:layout_weight="2" android:layout_height="wrap_content" android:layout_width="fill_parent" android:gravity="center"></TextView>        
</TableRow>

You need to set TextView Gravity (Center Horizontal & Center Vertical) like this:

android:layout_centerHorizontal="true"   

and

android:layout_centerVertical="true"

And dynamically using:

textview.setGravity(Gravity.CENTER);
textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);