Android 日期和时间的使用实例详解

public static class TimePickerFragment extends DialogFragment              implements TimePickerDialog.OnTimeSetListener {    //用户创建弹出时间框的方法  @Override  public Dialog onCreateDialog(Bundle savedInstanceState) {    // Use the current time as the default values for the picker    final Calendar c = Calendar.getInstance();    int hour = c.get(Calendar.HOUR_OF_DAY);    int minute = c.get(Calendar.MINUTE);    // Create a new instance of TimePickerDialog and return it    return new TimePickerDialog(getActivity(), this, hour, minute,        DateFormat.is24HourFormat(getActivity()));  }  public void onTimeSet(TimePicker view, int hourOfDay, int minute) {    // Do something with the time chosen by the user  }}   

 android:layout_width="wrap_content"   android:layout_height="wrap_content"  android:text="@string/pick_time"   android:onClick="showTimePickerDialog" />

public void showTimePickerDialog(View v) {  DialogFragment newFragment = new TimePickerFragment();  newFragment.show(getSupportFragmentManager(), "timePicker");}

public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {  //用户创建日期对话框的时间方法  @Override  public Dialog onCreateDialog(Bundle savedInstanceState) {    Calendar c = Calendar.getInstance();    int year = c.get(Calendar.YEAR);    int month = c.get(Calendar.MONTH);    int day = c.get(Calendar.DAY_OF_MONTH);    DatePickerDialog dialog = new DatePickerDialog(getActivity(), this, year, month, day);    return dialog;  }  @Override  public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {  }}