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copied!<p>I found a way to my problem.</p> <p>Here we go</p> <p>First I used DialogFragment instead PopupView.</p> <p>So in my main activity I only created a Button who calls my DialogFragment.</p> <pre><code>public class Activity_principal1 extends FragmentActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_principal1); Button abrir = (Button) findViewById(R.id.botao); abrir.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { new DialogFragmentWindow().show(getSupportFragmentManager(), ""); } }); } }</code></pre> <p>My adapter still the same like the question.</p> <p>And here is where the magic occurs.</p> <pre><code>public class DialogFragmentWindow extends DialogFragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.popup, container); ViewPager vp_contentAcoesMusculares_SequenciaExercicios = (ViewPager) view.findViewById(R.id.vp_contentAcoesMusculares_SequenciaExercicios); List fragments = getFragments(); AcoesMuscularesAdapter ama = new AcoesMuscularesAdapter(getChildFragmentManager(), fragments); vp_contentAcoesMusculares_SequenciaExercicios.setAdapter(ama); getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE); return view; } private List getFragments(){ List fList = new ArrayList(); fList.add(FragmentAcoesMusculares.newInstance("Fragment 1",1)); fList.add(FragmentAcoesMusculares.newInstance("Fragment 2",2)); fList.add(FragmentAcoesMusculares.newInstance("Fragment 3",3)); return fList; } }</code></pre> <p>The difference is the getChildFragmentManager(). This little piece of code saved my day.</p> <p>The explanation to this is when I was using getSupportFragmentManager() and even indicating the viewpager was in another Layout XML he thought being in the main Layout XML.</p> <p>Now my app get the child fragment so now he see the ViewPager.</p> <p>That's it.</p> <p>Thanks everyone.</p>

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