How to add child activities in android?

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http://stackoverflow.com – I am using slide-out menu from git-hub project.In that I want a separate activity should be called for each slide menu click i.e I should add the other activities as a child activities. For example if I click on grades I should add that grades activity as a child to my main activity. To get the you tube and face book style of sliding. How can I create and add the other activities to my parent activity. Screenshot for your reference: my main activity layout file is: <?xml version="1.0" encoding="utf-8"?> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" (HowTos)