<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <Button
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:id="@+id/button1"
        android:text="@string/strBtn1"
        > </Button>


</LinearLayout>
