The method show(FragmentManager, String) in the type DialogFragment is not applicable for the arguments (FragmentTransaction, String)

Question

I have a problem with Fragments.

Problem what i am facing is, i have a simple DialogFragment

public class Fragment3 extends DialogFragment  {
private Fragment activity;
ViewGroup root;

static Fragment3 newInstance() {
    Fragment3 f = new Fragment3();
    return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {        
    root = (ViewGroup) inflater.inflate(R.layout.fragment3_layout, container, false);
    return root;
  } 
}  

And i want to create this Fragment from another Fragment

public class ListViewImageAdapter extends BaseAdapter {

private Fragment activity;
....

public ListViewImageAdapter(Fragment activity, ArrayList<Object> listImages) {
    this.activity = activity;
 ...}

....
FragmentTransaction ft = activity.getFragmentManager().beginTransaction();
Fragment3 newFragment = Fragment3.newInstance();
newFragment.show( ft, "dialog");
....

But I get a message:

The method show(FragmentManager, String) in the type DialogFragment is not applicable for the arguments (FragmentTransaction, String)

Answer 1

import android.support.v4.app.FragmentActivity;

instead of:

import android.app.DialogFragment;

(or the reverse)

Answer 2

Try to call newFragment.show( activity.getFragmentManager(), "dialog"); instead of newFragment.show( ft, "dialog"); . DialogFragment.show() method takes FragmentManager as first argument, not FragmentTransaction. Please take a look on tutorial