Android Studio AlertDialog Pass Values to DialogFragment 1

MainActivity.java

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void showDialog(View view) {
        // DialogFragmentの用意
        DialogFragment dialogFragment = new MyDialogFragment();

        // 渡す値をセット
        Bundle args = new Bundle();
        args.putString("title", "こんにちは");
        args.putInt("number", 123);
        dialogFragment.setArguments(args);

        // ダイアログを表示
        dialogFragment.show(getSupportFragmentManager(), "my_dialog");
    }
}