Android DialogFragment的使用

public class EditNameDialogFragment extends DialogFragment {

    private Button button;
    private EditText id_txt_your_name;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_edit_name, container);
        button = view.findViewById(R.id.id_sure_edit_name);
        id_txt_your_name = view.findViewById(R.id.id_txt_your_name);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                listener.returnRefresh(id_txt_your_name.getText().toString());
            }
        });
        return view;
    }

    //刷新数据
    private static refreshOnDisplayListener listener;

    public interface refreshOnDisplayListener {
        public void returnRefresh(String str);
    }

    public static void setOnDisplayRefreshListener(refreshOnDisplayListener myListener) {
        listener = myListener;
    }

}

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <TextView
            android:layout_margin="10dp"
            android:id="@+id/id_label_your_name"
            android:layout_width="wrap_content"
            android:layout_height="32dp"
            android:gravity="center_vertical"
            android:text="Your name:" />

        <EditText
            android:layout_marginTop="10dp"
            android:id="@+id/id_txt_your_name"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_toRightOf="@id/id_label_your_name"
            android:imeOptions="actionDone"
            android:inputType="text" />

        <Button

            android:onClick="onFinish"
            android:layout_centerHorizontal="true"
            android:id="@+id/id_sure_edit_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@id/id_txt_your_name"
            android:text="ok" />
    </RelativeLayout>

</android.support.v7.widget.CardView>

EditNameDialogFragment.setOnDisplayRefreshListener(new EditNameDialogFragment.refreshOnDisplayListener() {
            @Override
            public void returnRefresh(String str) {
                textview.setText(str);
                editNameDialog.dismiss();
            }
        });

public void showEditDialog(View view) {
        editNameDialog = new EditNameDialogFragment();
        editNameDialog.show(getSupportFragmentManager(), "EditNameDialog");
    }