getSupportFragmentManager doesn't compile on DialogFragment

Question

How can I show this :

public class TagsDialog extends DialogFragment
{
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState)
    {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        LayoutInflater inflater = getActivity().getLayoutInflater();
        builder.setView(inflater.inflate(R.layout.tags_dialog, null));
        builder.setMessage("This is a message").setTitle("TAGS");
        return builder.create();
    }
}

From inside my Fragment inside a ViewPager :

    public class MyFragment extends Fragment
    {
        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
        {

    ...

            ImageView btnTags = (ImageView)view.findViewById(R.id.btnTags);
            btnTags.setOnClickListener(new View.OnClickListener()
            {
                @Override
                public void onClick(View view)
                {

                    DialogFragment dlg = new TagsDialog();
                    //this line doesn't compile
                    dlg.show(getSupportFragmentManager(), "tags");

                }
            });
}
}

I have tried for ages to get this to work, but getSupportFragmentManager is never resolved... any ideas?

EDIT:

I feel this is all caused by the support FragmentManager vs the android.app.FragmentManager, however I do not know how to solve this, as I am using the ViewPager from the support library...

getSupportFragmentManager/and all related getFragManager methods like parent and child one always returns the Manager from the support lib, wheras the show method wants the core one.

Imports are:

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;

FragmentManager fm = getActivity().getSupportFragmentManager(); // returns from support lib
DialogFragment dlg = new TagsDialog();
dlg.show(fm, "tags"); // wants core...

If I just use core, then getSupportFragmentManager() does not exist on getActivity()...

Answer 1

You should double check your imports. You can't use a mix of Fragment & FragmentManager from the support library and from android core apis.

If you use support, use everything from support (from package android.support.v4.app). If not, use everything from core api package (android.app).