日期修改监听器不管用

 private TimePicker timePicker; //生命类型

    private DatePicker datePicker1;

    private Calendar cal;

    private int year,month,day,hour,minute;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        cal=Calendar.getInstance();//获取日历对象

        year=cal.get(Calendar.YEAR);//获取年信息

        month=cal.get(Calendar.MONTH)+1;//获取月信息

        day=cal.get(Calendar.DAY_OF_MONTH);//获日信息

        hour=cal.get(Calendar.HOUR_OF_DAY);//获取分秒信息

        minute=cal.get(Calendar.MINUTE);//获取秒信息

        setTitle(year+"-"+month+"-"+day+"-"+hour+"-"+minute); //设置为标题

        datePicker1= (DatePicker) findViewById(R.id.datePicker);//变量控件绑定

       // timePicker= (TimePicker) findViewById(R.id.timePicker1);//变量控件绑定

        datePicker1.init(year,cal.get(Calendar.MONTH)+1,day,new DatePicker.OnDateChangedListener() { //datepicker初始化

            @Override

            public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {

              //  setTitle(year+"年-"+monthOfYear+"月-"+dayOfMonth+"日-"+hour+"小时-"+minute); //设置为标题

              //  Log.i("Main","用户手指离开屏幕后 通过惯性滑动");//在日志中显示

                setTitle("2"); //设置为标题

            }

        });