Android - onCreateDialog返回時崩潰DatePickerDialog

Question

我目前正在試圖引發一個DatePickerDialog，每當一個EditText被點擊。但是，每次單擊EditText時，應用程序都會崩潰。這裏是相關的代碼和LogCat。

的EditText上和它的OnClickListener：

addBirth.setClickable(true); 
    addBirth.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      showDialog(DATE_DIALOG_ID); 
     } 
    }); 

的onCreateDialog方法和DateSetListener：

@Override 
protected Dialog onCreateDialog(int id) { 
    // TODO Auto-generated method stub 
    switch (id) { 
    case DATE_DIALOG_ID: 
     DatePickerDialog dialog = new DatePickerDialog(getApplicationContext(), mDateSetListener, mYear, mMonth, mDay); 
     return dialog; 
    } 
    return null; 
} 

protected DatePickerDialog.OnDateSetListener mDateSetListener = 
     new DatePickerDialog.OnDateSetListener() { 

      @Override 
      public void onDateSet(DatePicker view, int year, int monthOfYear, 
        int dayOfMonth) { 
       mYear = year; 
       mMonth = monthOfYear; 
       mDay = dayOfMonth; 
       updateDisplay(); 

      } 
     }; 
private void updateDisplay() { 
    addBirth.setText(
      new StringBuilder() 
        .append(mMonth + 1).append("-") 
        .append(mDay).append("-") 
        .append(mYear).append(" ")); 
} 

而這裏的logcat的：

04-23 14:46:56.142: D/AndroidRuntime(751): Shutting down VM 
04-23 14:46:56.142: W/dalvikvm(751): threadid=1: thread exiting with uncaught exception (group=0x40015560) 
04-23 14:46:56.241: E/AndroidRuntime(751): FATAL EXCEPTION: main 
04-23 14:46:56.241: E/AndroidRuntime(751): android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.view.ViewRoot.setView(ViewRoot.java:531) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.app.Dialog.show(Dialog.java:241) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.app.DatePickerDialog.show(DatePickerDialog.java:132) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.app.Activity.showDialog(Activity.java:2566) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.app.Activity.showDialog(Activity.java:2524) 
04-23 14:46:56.241: E/AndroidRuntime(751): at com.android.yawus.phone.AddContact$2.onClick(AddContact.java:65) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.view.View.performClick(View.java:2485) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.view.View$PerformClick.run(View.java:9080) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.os.Handler.handleCallback(Handler.java:587) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.os.Handler.dispatchMessage(Handler.java:92) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.os.Looper.loop(Looper.java:123) 
04-23 14:46:56.241: E/AndroidRuntime(751): at android.app.ActivityThread.main(ActivityThread.java:3683) 
04-23 14:46:56.241: E/AndroidRuntime(751): at java.lang.reflect.Method.invokeNative(Native Method) 
04-23 14:46:56.241: E/AndroidRuntime(751): at java.lang.reflect.Method.invoke(Method.java:507) 
04-23 14:46:56.241: E/AndroidRuntime(751): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 
04-23 14:46:56.241: E/AndroidRuntime(751): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 
04-23 14:46:56.241: E/AndroidRuntime(751): at dalvik.system.NativeStart.main(Native Method) 

Answer 1

切勿使用getApplicationContext()創建對話框。

試試這個。

DatePickerDialog dialog = new DatePickerDialog(YourActivity.this, mDateSetListener, mYear, mMonth, mDay); 

Answer 2

她是一個官方的谷歌票，說明您的問題：http://code.google.com/p/android/issues/detail?id=11199