如何在Android Fragment中使用日期选取器？

Question

我已使用Date Picker在Activity，但我不知道如何在片段中使用它。我正在上传我的活动Date Picker代码。任何人都可以帮助我转换片段中的代码？

protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    initialize(); 
    context = getApplicationContext(); 
    View.OnClickListener listenerDate = new View.OnClickListener() { 
     @Override 
     public void onClick(View arg0) { 
      final Calendar c = Calendar.getInstance(); 
      year = c.get(Calendar.YEAR); 
      month = c.get(Calendar.MONTH); 
      day = c.get(Calendar.DAY_OF_MONTH); 
      showDialog(DATE_DIALOG_ID); 
     } 
    }; 
    editTextDate.setOnClickListener(listenerDate); 
} private void initialize() { 
    editTextDate = (EditText) findViewById(R.id.editTextDate); 
}private void updateDisplay() { 
    currentDate = new StringBuilder().append(day).append(".") 
      .append(month + 1).append(".").append(year).toString(); 
    Log.i("DATE", currentDate); 
} 
DatePickerDialog.OnDateSetListener myDateSetListener = new DatePickerDialog.OnDateSetListener() { 
    @Override 
    public void onDateSet(DatePicker datePicker, int i, int j, int k) { 
     year = i; 
     month = j; 
     day = k; 
     updateDisplay(); 
     editTextDate.setText(currentDate); 
    } 
};` 

Answer 1

您可以在片段使用：

Calendar myCalendar = Calendar.getInstance() //global 

public void showDatePickerDialog(){ 

    DatePickerDialog datePickerDialog = new DatePickerDialog(getActivity(), date, myCalendar.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH)); 
    datePickerDialog.show(); 
} 


DatePickerDialog.OnDateSetListener date = new DatePickerDialog.OnDateSetListener() { 

    @Override 
    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { 
     myCalendar.set(Calendar.YEAR, year); 
     myCalendar.set(Calendar.MONTH, monthOfYear); 
     myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth); 
     updateYourLabel(); // or whatever you want 
    } 

}; 

Answer 2

试试这个示例：

public class YourClass extends Fragment { 
    public void onCreate(Bundle savedInstanceState){ 
     super.onCreate(savedInstanceState); 
    } 

    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) { 
     View view= inflater.inflate(R.layout.your_layout, container, false); 
     return view; 
    } 

    public void onViewCreated(View view, Bundle savedInstanceState) { 
     super.onViewCreated(view, savedInstanceState); 
     edittext.setOnClickListener(new OnClickListener() { 
       @Override 
       public void onClick(View v) { 
        // TODO Auto-generated method stub 
        showDatePicker(); 
       } 
      }); 
    } 

    private void showDatePicker() { 
     DatePickerFragment date = new DatePickerFragment(); 
     /** 
     * Set Up Current Date Into dialog 
     */ 
     Calendar calender = Calendar.getInstance(); 
     Bundle args = new Bundle(); 
     args.putInt("year", calender.get(Calendar.YEAR)); 
     args.putInt("month", calender.get(Calendar.MONTH)); 
     args.putInt("day", calender.get(Calendar.DAY_OF_MONTH)); 
     date.setArguments(args); 
     /** 
     * Set Call back to capture selected date 
     */ 
     date.setCallBack(ondate); 
     date.show(getFragmentManager(), "Date Picker"); 
    } 

    OnDateSetListener ondate = new OnDateSetListener() { 

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

      edittext.setText(String.valueOf(dayOfMonth) + "-" + String.valueOf(monthOfYear+1) 
       + "-" + String.valueOf(year)); 
     } 
    };    
} 

现在创建类DatePickerFragment：

public class DatePickerFragment extends DialogFragment { 
    OnDateSetListener ondateSet; 
    private int year, month, day; 

    public DatePickerFragment() {} 

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

    @SuppressLint("NewApi") 
    @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); 
    } 
} 

希望它能帮助。