Как реализовать класс DatePickerFragment в других кланах

Question

У меня есть класс DatePickerFragment, определенный следующим образом. Как реализовать его в другом классе, а не полностью определять его. Пожалуйста, направляйте.

public class DatePickerFragment extends DialogFragment { 
    OnDateSetListener ondateSet; 

    public DatePickerFragment() { 
    } 

    public void setCallBack(OnDateSetListener ondate) { 
    ondateSet = ondate; 
    } 

    private int year, month, day; 

    @Override 
    public void setArguments(Bundle args) { 
    super.setArguments(args); 
    year = args.getInt("year"); 
    month = args.getInt("month"); 
    day = args.getInt("day"); 
    } 

    @Override 
    public Dialog onCreateDialog(Bundle savedInstanceState) { 
    return new DatePickerDialog(getActivity(), ondateSet, year, month, day); 
    } 
    } 

Как я могу использовать этот класс в следующем коде? Пожалуйста, направляйте.

public class TrainingDetails extends BaseFragment 
{ 
    View view; 
    private EditText nameEdt; 
    private EditText descriptionEdt; 
    private Spinner trainingTypes; 
    private Spinner trainerProfile; 

    private NumberPicker plannedBudgetNp; 
    private Calendar calendar; 
    private EditText startDt; 
    private EditText endDt; 
    private int year, month, day; 

    String data1[] = {"1", "2", "3"}; 
    String data2[] = {"a", "b", "c"}; 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) 
    { 
     view=inflater.inflate(R.layout.training_details, container,false); 

     nameEdt = (EditText) view.findViewById(R.id.name_edt); 

     trainingTypes = (Spinner) view.findViewById(R.id.trainingtypes_spn); 

     ArrayAdapter<String> adapter_state1 = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_spinner_item, data1); 

     adapter_state1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 
     trainingTypes.setAdapter(adapter_state1); 

     trainingTypes.setOnItemSelectedListener(new OnItemSelectedListener() 
     { 
      @Override 
      public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) 
      { 
       int index = arg0.getSelectedItemPosition(); 
       String selTrainingTypes = data1[index]; 
       //Toast.makeText(arg0.getContext(), "Selected: " + selectedItem, Toast.LENGTH_LONG).show(); 

      } 
      @Override 
      public void onNothingSelected(AdapterView<?> arg0) 
      { 

      } 
     }); 

     trainerProfile = (Spinner) view.findViewById(R.id.trainerprofile_spn); 

     ArrayAdapter<String> adapter_state2 = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_spinner_item, data2); 

     adapter_state2.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 
     trainingTypes.setAdapter(adapter_state2); 

     trainingTypes.setOnItemSelectedListener(new OnItemSelectedListener() 
     { 
      @Override 
      public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) 
      { 
       int index = arg0.getSelectedItemPosition(); 
       String selTrainerProfiles = data2[index]; 
       //Toast.makeText(arg0.getContext(), "Selected: " + selectedItem, Toast.LENGTH_LONG).show(); 

      } 
      @Override 
      public void onNothingSelected(AdapterView<?> arg0) 
      { 

      } 
     }); 

     descriptionEdt = (EditText) view.findViewById(R.id.description_edt); 

     startDt = (EditText) view.findViewById(R.id.startdate_edt); 
     endDt = (EditText) view.findViewById(R.id.enddate_edt); 

     calendar = Calendar.getInstance(); 
     year = calendar.get(Calendar.YEAR); 
     month = calendar.get(Calendar.MONTH); 
     day = calendar.get(Calendar.DAY_OF_MONTH); 
     showDate(year, month+1, day); 

Answer 1

DatePickerFragment

public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener{ 
    int currentDate,currentMonth , currentYear; 
    public Dialog onCreateDialog(Bundle savedInstanceState) { 
     Calendar calendar = Calendar.getInstance(); 
     currentDate = calendar.get(Calendar.DAY_OF_MONTH); 
     currentMonth = calendar.get(Calendar.MONTH); 
     currentYear = calendar.get(Calendar.YEAR); 
     return new DatePickerDialog(getActivity(), this, currentYear , currentMonth, currentDate); 
    } 
    @Override 
    public void onDateSet(DatePicker view, int year, int monthOfYear, 
      int dayOfMonth) { 

     String finalDate=String.valueOf(dayOfMonth)+"/"+String.valueOf(monthOfYear)+"/"+String.valueOf(year)); 
    } 

} 

Вызов в SecondActivity

DatePickerFragment newFragment = новый DatePickerFragment(); newFragment.show (getActivity(). GetSupportFragmentManager(), "datePicker");