diff --git a/DateTimePickerDialog.java b/DateTimePickerDialog.java
new file mode 100644
index 0000000..5f4a9cc
--- /dev/null
+++ b/DateTimePickerDialog.java
@@ -0,0 +1,79 @@
+package soc;
+
+import android.app.DatePickerDialog;
+import android.app.Dialog;
+import android.app.TimePickerDialog;
+import android.os.Bundle;
+import android.annotation.NonNull;
+import androidx.fragment.app.DialogFragment;
+import android.widget.DatePicker;
+import android.widget.TimePicker;
+
+import java.util.Calendar;
+
+public class DateTimePickerDialog extends DialogFragment
+        implements DatePickerDialog.OnDateSetListener, TimePickerDialog.OnTimeSetListener {
+
+    private static final String ARG_DATE = "date";
+    private Calendar date;
+
+    public static DateTimePickerDialog newInstance(Calendar initialDate) {
+        DateTimePickerDialog dialog = new DateTimePickerDialog();
+        Bundle args = new Bundle();
+        args.putSerializable(ARG_DATE, initialDate);
+        dialog.setArguments(args);
+        return dialog;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            date = (Calendar) getArguments().getSerializable(ARG_DATE);
+        }
+        if (date == null) {
+            date = Calendar.getInstance();
+        }
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        int year = date.get(Calendar.YEAR);
+        int month = date.get(Calendar.MONTH);
+        int day = date.get(Calendar.DAY_OF_MONTH);
+
+        // 创建一个新的 DatePickerDialog 实例并返回
+        return new DatePickerDialog(requireActivity(), this, year, month, day);
+    }
+
+    @Override
+    public void onDateSet(DatePicker view, int year, int month, int day) {
+        date.set(Calendar.YEAR, year);
+        date.set(Calendar.MONTH, month);
+        date.set(Calendar.DAY_OF_MONTH, day);
+
+        int hour = date.get(Calendar.HOUR_OF_DAY);
+        int minute = date.get(Calendar.MINUTE);
+
+        // 创建新的 TimePickerDialog 实例并显示
+        new TimePickerDialog(requireActivity(), this, hour, minute, true).show();
+    }
+
+    @Override
+    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
+        date.set(Calendar.HOUR_OF_DAY, hourOfDay);
+        date.set(Calendar.MINUTE, minute);
+
+        // 通知监听器（如果有的话）关于选定的日期和时间
+        if (getTargetFragment() != null && getTargetFragment() instanceof OnDateTimeSetListener) {
+            ((OnDateTimeSetListener) getTargetFragment()).onDateTimeSet(date);
+        } else if (getActivity() instanceof OnDateTimeSetListener) {
+            ((OnDateTimeSetListener) getActivity()).onDateTimeSet(date);
+        }
+    }
+
+    public interface OnDateTimeSetListener {
+        void onDateTimeSet(Calendar date);
+    }
+}