Linear Layout and weight in Android

I always read about this funny weight value in the Android documentations. Now I want to try it for the first time but it isn't working at all.

As I understand it from the documentations this layout:

  <LinearLayout
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android:orientation="horizontal">

     <Button
        android:text="Register"
        android:id="@+id/register"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="10dip"
        weight="1" />

     <Button
        android:text="Not this time"
        android:id="@+id/cancel"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="10dip"
        weight="1" />

  </LinearLayout>

should create two buttons that are horizontally aligned and share the space equally. The problem is the two buttons don't grow to fill the space.

I would like the buttons to grow and fill the whole line. If both buttons are set to match parent only the first button is shown and fills the whole line.

You are not setting the layout_weight property. Your code reads weight="1" and it should read android:layout_weight="1".