Android DatePicker和TimePicker

监测日期改变的监听器：

     OnDateChangedListener和OnTimeChangedListener()

          当用户改变Datepicker里的年、月、日时，将触发OnDateChangedListener的OnTimeChange事件。

当用户更改TimePicker里的时、分、时，将触发OnTimeChangedListener监听器的OnTimeChanged事件

     OnDateSetListener和OnTimeSetListener()

          当用户更改了DatePickerDialog里的年、月、日时，将触发OnDateSetListener监听器的onDateSet()事件

          当用户更改了TimePickerDialog里的时，分时，将触发OnTimeSetListener监听器的onTimeSet()事件。

public class MainActivity extends Activity {

 

 

        private TimePicker timePicker;

        private DatePicker datePicker ;

        private Calendar calendar ;

        private int year ;

        private int month ;

        private int day ;

        private int hour;

        private int minute;

       

        @Override

        protected void onCreate(Bundle savedInstanceState) {

               super.onCreate(savedInstanceState);

              setContentView(R.layout. activity_main);

               calendar=Calendar. getInstance();

               year= calendar.get( calendar. YEAR);

               month= calendar.get( calendar. MONTH);

               day= calendar.get( calendar. DAY_OF_MONTH);

              setTitle( year+ month+ day);

               datePicker=(DatePicker) findViewById(R.id.datePicker1);

               timePicker=(TimePicker) findViewById(R.id.timePicker1);

               //datepicker 初始化

               datePicker.init(year , month , day , new OnDateChangedListener() {

                     

                      @Override

                      public void onDateChanged(DatePicker view, int year, int monthOfYear,

                                   int dayOfMonth) {

                           

                           setTitle(year+ ""+monthOfYear+1+"" +dayOfMonth);

                     }

              });

       }