I am creating an application which has five tabs at the bottom of the screen, each of which opens a different Activity.
My Tab Activity extends TabActivity which I have just read is deprecated and I should use Fragments instead.
How do I change my app to use Fragments instead? I have read the information on android.developer.com but I still have no idea how to do this.
You will need to use the android compatibility library to use fragments. It can be found as a jar file in your android sdk folder.
There are many tutorials out there for fragments.
There is a project named ActionBarSherlock which demos all the capability of the compatibility library. Source code is also available on github. The link is on there site.
This is another tutorial http://mobile.tutsplus.com/tutorials/android/android-compatibility-working-with-fragments/
来源：https://stackoverflow.com/questions/7599816/creating-tabs-using-fragments-now-that-tabactivity-is-deprecated