在HomeFragment的应用程序中添加日问候语

<TextView
    android:id="@+id/greetingTextView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textSize="24sp"
    android:textColor="#000000"
    android:layout_marginTop="16dp"
    android:layout_marginBottom="16dp" />

import java.util.Calendar;

public class HomeFragment extends Fragment {
    private TextView greetingTextView;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_home, container, false);
        greetingTextView = view.findViewById(R.id.greetingTextView);

        // 获取当前时间
        Calendar calendar = Calendar.getInstance();
        int hourOfDay = calendar.get(Calendar.HOUR_OF_DAY);

        // 根据时间设置问候语
        String greeting;
        if (hourOfDay >= 6 && hourOfDay < 12) {
            greeting = "早上好！";
        } else if (hourOfDay >= 12 && hourOfDay < 18) {
            greeting = "下午好！";
        } else {
            greeting = "晚上好！";
        }

        greetingTextView.setText(greeting);

        return view;
    }
}