How to create a dialog using DialogFragment and AlertDialog.

DialogDemoActivity.java

package yaraki.dialogdemo.app;

import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;


public class DialogDemoActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (null == savedInstanceState) {
            getSupportFragmentManager().beginTransaction()
                    .replace(R.id.container, new MainFragment())
                    .commit();
        }
    }

    public static class MainFragment extends Fragment implements View.OnClickListener {

        private static final String FRAGMENT_YES_NO_DIALOG = "dialog";

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            return inflater.inflate(R.layout.fragment_main, container, false);
        }

        @Override
        public void onViewCreated(View view, Bundle savedInstanceState) {
            view.findViewById(R.id.show_dialog).setOnClickListener(this);
        }

        @Override
        public void onClick(View view) {
            switch (view.getId()) {
                case R.id.show_dialog: {
                    new YesNoDialogFragment().show(getFragmentManager(), FRAGMENT_YES_NO_DIALOG);
                    break;
                }
            }
        }

    }

    public static class YesNoDialogFragment extends DialogFragment implements DialogInterface.OnClickListener {

        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            return new AlertDialog.Builder(getActivity())
                    .setMessage("Feeling lucky?")
                    .setPositiveButton("Yes", this)
                    .setNegativeButton("No", this)
                    .create();
        }

        @Override
        public void onClick(DialogInterface dialogInterface, int which) {
            switch (which) {
                case DialogInterface.BUTTON_POSITIVE: {
                    Toast.makeText(getActivity(), "Great!", Toast.LENGTH_SHORT).show();
                    break;
                }
                case DialogInterface.BUTTON_NEGATIVE: {
                    Toast.makeText(getActivity(), "Maybe next time...", Toast.LENGTH_SHORT).show();
                    break;
                }
            }
        }

    }

}