I am creating application which will support Android 2.2 to Android 4.1. The TabHost is deprecated in Android version 3.2
There are many points to your question,
TabHost is not deprecated yet. Recently Google deprecated TabActivity and ActivityGroup. Now to answer your question, You have more than one options
TabHost with fragments, See my answer here for a
good example. To use Fragment in pre 3.0 API's you need to use
Google's support library.