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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:background="@android:color/holo_blue_light"
    android:layout_height="100dp">

    <EditText
        android:id="@+id/editText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

// Implement the listener (interface)

CustomDialog questionDialog = new CustomDialog();
questionDialog.show(getFragmentManager(), "questions_dialog");

public class CustomDialog extends AppCompatDialogFragment {

    LayoutInflater inflater;
    View view;
    SampleListener listener;
    
    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        // This makes sure that the container activity has implemented 
        // the callback interface. If not, it throws an exception 
        try { 
            listener = (SampleListener) context;
        } catch (ClassCastException e) {
            throw new ClassCastException(context.toString()
                    + " must implement SampleListener"); 
        }
    }

    public interface SampleListener{
        public void listener(String dataToPass);
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

        inflater = getActivity().getLayoutInflater();

        view = inflater.inflate(R.layout.custom_dialog_layout, null);
        // Extract 
        
        
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

        builder.setView(view).setIcon(R.drawable.ic_question_black_24dp).setPositiveButton("Yes", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                //Toast.makeText(getActivity(), "Ask", Toast.LENGTH_SHORT).show();
                handler.questionAdded(editTextQuestion.getText().toString());
            }
        }).setNegativeButton("No", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
              // Handle negative click
            }
        });

        return builder.create();
    }
}