Just wrap your current LinearLayout with ScrollView. So it should be smth like this:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageButton ... />
<TextView ... />
<TextView ... />
<TextView ... />
</LinearLayout>
</ScrollView>