android中 dialog显示TimePickerDialog

package com.dialog;

import android.app.Activity;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.os.Bundle;
import android.widget.TimePicker;
import android.widget.Toast;

public class dialogdatetume extends Activity {
    int hour, minute1;
    static final int TIME_DIALOG_ID = 0;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.datetimepicker);
        showDialog(TIME_DIALOG_ID);

    }

    @Override
    protected Dialog onCreateDialog(int id) {
        // TODO Auto-generated method stub
        //return super.onCreateDialog(id);
        switch (id) {
        case TIME_DIALOG_ID:
            return new TimePickerDialog( this, mTimeSetListener, hour, minute1, false);
    }
    return null;
    }
       private TimePickerDialog.OnTimeSetListener mTimeSetListener =
            new TimePickerDialog.OnTimeSetListener()
       {

                @Override
                public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                    // TODO Auto-generated method stub
                     hour = hourOfDay;
                       minute1 = minute;
                        Toast.makeText(getBaseContext(),
                            "You have selected : " + hour + ":" + minute1,
                            Toast.LENGTH_SHORT).show();
                }
            };

}

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas./apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

    <TimePicker
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>