如何將當前日期和星期幾放在DatePickerDialog上

Question

我有一個應用程序使用DatePickerDialog來設置日期。如果您更改微調器上的日期，我希望在小部件上顯示日期和星期幾。這在2.3.3的三星mini上運行時會發生。然而，當在htc one x 4.0.4上編譯時，星期幾和星期幾不存在。

無論哪種設備或Android版本，我如何確保小部件上的日期和星期幾總是存在？

我需要覆蓋小部件的默認行爲，因爲它根據哪個設備或操作系統而不一致。謝謝

@Override 
    protected Dialog onCreateDialog(int id) { 
     switch (id) { 
     case DATE_DIALOG_ID: 
      // set date picker as current date 

      return new DatePickerDialog(this, datePickerListener, year, month, day); 
     } 
     return null; 
    } 

    private DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() { 

     // when dialog box is closed, below method will be called. 
     public void onDateSet(DatePicker view, int selectedYear, 
       int selectedMonth, int selectedDay) { 

      year = selectedYear; 
      month = selectedMonth; 
      day = selectedDay; 




      Intent i = new Intent(GetRota.this, NfcscannerActivity.class); 
      i.putExtra("nextRota", formattedSpinnyTime); 
      i.setAction("NEXT_ROTA"); 
      startActivity(i); 

     } 
    }; 

。

[編輯]

@Override 
    protected Dialog onCreateDialog(int id) { 
     switch (id) { 
     case DATE_DIALOG_ID: 
      // set date picker as current date 

      //return new DatePickerDialog(this, datePickerListener, year, month, day); 
      DatePickerDialog dpd = new DatePickerDialog(nfcscannerapplication, datePickerListener, year, month, day); 
      dpd.updateDate(year, month, day); 
     } 
     return null; 
    } 

    private DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() { 

     // when dialog box is closed, below method will be called. 
     public void onDateSet(DatePicker view, int selectedYear, 
       int selectedMonth, int selectedDay) { 

      year = selectedYear; 
      month = selectedMonth; 
      day = selectedDay; 





      DateTime spinnyTime = new DateTime(year, month+1, day, 1, 1); 
      Log.e(TAG, "spinnyTime = " + spinnyTime); 
      DateTimeFormatter fmt = DateTimeFormat.forPattern("d-MMM-Y"); 
      String formattedSpinnyTime = fmt.print(spinnyTime); 
      Log.e(TAG, "spinnyTime = " + formattedSpinnyTime); 
      Log.e(TAG, "year = " + year); 
      Log.e(TAG, "month = " + month); 
      Log.e(TAG, "day = " + day); 
      nfcscannerapplication.setPreviousGlobalDateTime(nfcscannerapplication.getglobalDateTime()); 
      nfcscannerapplication.setGobalDateTime(spinnyTime); 



      Intent i = new Intent(GetRota.this, NfcscannerActivity.class); 
      i.putExtra("nextRota", formattedSpinnyTime); 
      i.setAction("NEXT_ROTA"); 
      startActivity(i); 

     } 
    }; 

[EDIT2]

11-06 16:27:33.320: E/AndroidRuntime(24628): FATAL EXCEPTION: main 
11-06 16:27:33.320: E/AndroidRuntime(24628): android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.view.ViewRootImpl.setView(ViewRootImpl.java:595) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:406) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:320) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:152) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.app.Dialog.show(Dialog.java:301) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.app.Activity.showDialog(Activity.java:2983) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.app.Activity.showDialog(Activity.java:2933) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at com.carefreegroup.GetRota.onOptionsItemSelected(GetRota.java:239) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.app.Activity.onMenuItemSelected(Activity.java:2571) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at com.android.internal.policy.impl.PhoneWindow.onMenuItemSelected(PhoneWindow.java:981) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at com.android.internal.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:735) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:149) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:874) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at com.android.internal.view.menu.IconMenuView.invokeItem(IconMenuView.java:495) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at com.android.internal.view.menu.IconMenuItemView.performClick(IconMenuItemView.java:127) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.view.View$PerformClick.run(View.java:14319) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.os.Handler.handleCallback(Handler.java:608) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.os.Handler.dispatchMessage(Handler.java:92) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.os.Looper.loop(Looper.java:156) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at android.app.ActivityThread.main(ActivityThread.java:5045) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at java.lang.reflect.Method.invokeNative(Native Method) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at java.lang.reflect.Method.invoke(Method.java:511) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 
11-06 16:27:33.320: E/AndroidRuntime(24628): at dalvik.system.NativeStart.main(Native Method) 

Answer 1

可以使用喬達時間 - 2.0.jar API。這個api有Datetime類。你可以從這堂課獲得時間。

DateTime datetime = DateTime.now();