1<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 android:layout_width="wrap_content" 3 android:layout_height="match_parent" 4 android:layout_gravity="center" 5 android:gravity="center" 6 android:orientation="vertical" 7 android:padding="10dp"> 8 9 <TextView 10 android:id="@+id/current_orientation" 11 android:layout_width="match_parent" 12 android:layout_height="wrap_content" 13 android:padding="20dp" 14 android:text="@string/current_orientation" 15 android:textStyle="bold" /> 16 17 <Button 18 android:id="@+id/portrait" 19 android:layout_width="match_parent" 20 android:layout_height="wrap_content" 21 android:onClick="onChangeOrientation" 22 android:text="@string/portrait" /> 23 24 <Button 25 android:id="@+id/landscape" 26 android:layout_width="match_parent" 27 android:layout_height="wrap_content" 28 android:onClick="onChangeOrientation" 29 android:text="@string/landscape" /> 30 31</LinearLayout>