<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/preview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scrollbars="horizontal|vertical"
android:scrollbarAlwaysDrawVerticalTrack="true"/>
</ScrollView>