import java.util.Calendar;

import android.app.Activity;

import android.os.Bundle;

import android.widget.DatePicker;

import android.widget.TimePicker;

public class MainActivity extends Activity {

private DatePicker datepicker;

private TimePicker timepicker;

private int year;

private int month;

private int day;

private int hour;

private int minute;

//获取当前时间的类

private Calendar cal;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main_activity);

        //获取日历的一个对象

        cal = Calendar.getInstance();

        year = cal.get(Calendar.YEAR);

        //月份从0月开始

        month = cal.get(Calendar.MONTH) +1;

        day = cal.get(Calendar.DAY_OF_MONTH);

        hour = cal.get(Calendar.HOUR_OF_DAY);

        minute = cal.get(Calendar.MINUTE);

        setTitle(year+month+day+hour+minute);

    }

}

是因为哪里不一样吗，在手机上运行，点开就闪一下就退了