ViewGroup inside ScrollView not displaying Android

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http://stackoverflow.com – I am trying to create a ViewGroup with a bunch of TextViews and ImageViews set at different coordinates that someone can scroll around on. I have a ScrollView as the layout in the xml file, and I am attempting to dynamically add a ViewGroup with all of the ImageViews and TextViews put into it (it's a timeline with events and pictures). I started with some sample TextViews however, and nothing displays on the screen. Here is the layout code: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertica (HowTos)