Nested fragment in a tab inside?

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http://stackoverflow.com – I have three tabs in a fragment. And I want to create each tab in a new fragment. I show the google code. Now, my code can create the tabs, but doesn't show anything in the content of each tab. My main fragment xml: <android.support.v4.app.FragmentTabHost xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/tabhost" android:layout_width="match_parent" android:layout_height="match_parent" > <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" &g (HowTos)