我在DatePickerDialog上驗證日期時遇到IllegalArgumentException。這裏是堆棧跟蹤:當在DatePickerDialog上驗證日期時發生IllegalArgumentException(Android)
10-27 19:50:34.700: E/AndroidRuntime(1188): FATAL EXCEPTION: main
10-27 19:50:34.700: E/AndroidRuntime(1188): java.lang.IllegalArgumentException
10-27 19:50:34.700: E/AndroidRuntime(1188): at java.text.DateFormat.format(DateFormat.java:365)
10-27 19:50:34.700: E/AndroidRuntime(1188): at java.text.Format.format(Format.java:93)
10-27 19:50:34.700: E/AndroidRuntime(1188): at com.boka.lesbonscomptes.ActivityMain$1.onDateSet(ActivityMain.java:43)
10-27 19:50:34.700: E/AndroidRuntime(1188): at android.app.DatePickerDialog.onClick(DatePickerDialog.java:111)
10-27 19:50:34.700: E/AndroidRuntime(1188): at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:166)
10-27 19:50:34.700: E/AndroidRuntime(1188): at android.os.Handler.dispatchMessage(Handler.java:99)
10-27 19:50:34.700: E/AndroidRuntime(1188): at android.os.Looper.loop(Looper.java:137)
10-27 19:50:34.700: E/AndroidRuntime(1188): at android.app.ActivityThread.main(ActivityThread.java:4424)
10-27 19:50:34.700: E/AndroidRuntime(1188): at java.lang.reflect.Method.invokeNative(Native Method)
10-27 19:50:34.700: E/AndroidRuntime(1188): at java.lang.reflect.Method.invoke(Method.java:511)
10-27 19:50:34.700: E/AndroidRuntime(1188): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
10-27 19:50:34.700: E/AndroidRuntime(1188): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
10-27 19:50:34.700: E/AndroidRuntime(1188): at dalvik.system.NativeStart.main(Native Method)
和我的代碼
public class ActivityMain extends Activity { //Attributs UI private LinearLayout layoutNouvelleDepense = null; private Button bDate = null; private GregorianCalendar gcDate = null; //util private SimpleDateFormat sdfAjd = null; static final int DATE_DIALOG_ID = 1; /*LISTENER*/ private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { Toast.makeText(getBaseContext(), "ok",Toast.LENGTH_SHORT).show(); //La date est calée sur le choix de l'utilisateur gcDate.set(year, monthOfYear, dayOfMonth); //Le bouton est mis à jour avec la date choisie bDate.setText(sdfAjd.format(gcDate)); } }; private OnClickListener oclBoutonDate = new View.OnClickListener() { @Override public void onClick(View v) { showDialog(DATE_DIALOG_ID); } }; /*METHODES*/ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); layoutNouvelleDepense = (LinearLayout) LinearLayout.inflate(this,R.layout.nouvelle_depense, null); bDate = (Button) layoutNouvelleDepense.findViewById(R.id.bDate); bDate.setOnClickListener(oclBoutonDate); gcDate = new GregorianCalendar(); sdfAjd = new SimpleDateFormat("EEEE dd/MM/yyyy", Locale.getDefault()); bDate.setText(sdfAjd.format(gcDate.getTime())); setContentView(layoutNouvelleDepense); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } @SuppressWarnings("static-access") @Override protected Dialog onCreateDialog(int id) { System.out.println("DATE = " + gcDate.get(GregorianCalendar.YEAR) + "/" + gcDate.get(GregorianCalendar.MONTH) + "/" + gcDate.get(GregorianCalendar.DAY_OF_MONTH)); return new DatePickerDialog(this, mDateSetListener, gcDate.get(GregorianCalendar.YEAR), gcDate.get(GregorianCalendar.MONTH), gcDate.get(GregorianCalendar.DAY_OF_MONTH)); } }
我在創造對話沒有問題,並顯示該對話框時的日期被正確初始化。
無論選擇哪個日期,都會引發IllegalArgumentException。
我一直在尋找一個答案,因爲相當長的一段時間,但所有類似的帖子都是關於創建對話框時引發的exceletion,而不是日期的驗證。
你能幫我找出發生了什麼嗎?
謝謝
該行導致'sdfAjd.format(gcDate)'異常。您將無效參數傳遞給** SimpleDateFormat **類的'format()'方法。我也懷疑sdfAjd對象的初始化。 – user370305