Android: wyjątek NullPointerException w DialogFragment.dismissInternal w DialogFragment.dismissAllow

Question

Awaria aplikacji, gdy program Show ProgressDialog. Testuję na moim telefonie z wysuwaną klawiaturą. Gdy wyświetlane jest okno dialogowe, wysuwam się po awarii klawiatury i aplikacji. log

public static class ProgressDialogFragment extends DialogFragment 
{ 

    public ProgressDialogFragment() 
    { 
     super(); 
    } 

    @Override 
    public Dialog onCreateDialog(Bundle savedInstanceState) 
    { 
     final ProgressDialog dialog = new ProgressDialog(getActivity()); 
     dialog.setMessage(getString(R.string.dlg_progress_title)); 
     dialog.setIndeterminate(true); 
     dialog.setCancelable(false); 
     return dialog; 
    } 

    @Override 
    public void show(FragmentManager manager, String tag) 
    { 
     try 
     { 
      super.show(manager, tag); 
     } 
     catch (IllegalStateException e) 
     { 
      Log.d(TAG, e.getMessage()); 
     } 
    } 

} 

crash:

> 04-25 20:49:46.999: E/AndroidRuntime(7904): FATAL EXCEPTION: main 
04-25 20:49:46.999: E/AndroidRuntime(7904): java.lang.NullPointerException 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at android.support.v4.app.DialogFragment.dismissInternal(DialogFragment.java:184) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at android.support.v4.app.DialogFragment.dismissAllowingStateLoss(DialogFragment.java:165) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at com.fisherman.activity.HomeActivity$2.onPostExecute(HomeActivity.java:268) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at com.fisherman.activity.HomeActivity$2.onPostExecute(HomeActivity.java:1) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at android.os.AsyncTask.finish(AsyncTask.java:417) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at android.os.AsyncTask.access$300(AsyncTask.java:127) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:429) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at android.os.Handler.dispatchMessage(Handler.java:99) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at android.os.Looper.loop(Looper.java:130) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at android.app.ActivityThread.main(ActivityThread.java:3835) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at java.lang.reflect.Method.invokeNative(Native Method) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at java.lang.reflect.Method.invoke(Method.java:507) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622) 
04-25 20:49:46.999: E/AndroidRuntime(7904):  at dalvik.system.NativeStart.main(Native Method) 

Zrobiłem klasie jest statyczna, ponieważ awarii aplikacji:

> 04-25 20:48:50.757: E/AndroidRuntime(7863): Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.fisherman.activity.HomeActivity$ProgressDialogFragment: make sure class name exists, is public, and has an empty constructor that is public 
04-25 20:48:50.757: E/AndroidRuntime(7863):  at android.support.v4.app.Fragment.instantiate(Fragment.java:405) 
04-25 20:48:50.757: E/AndroidRuntime(7863):  at android.support.v4.app.FragmentState.instantiate(Fragment.java:97) 
04-25 20:48:50.757: E/AndroidRuntime(7863):  at android.support.v4.app.FragmentManagerImpl.restoreAllState(FragmentManager.java:1767) 
04-25 20:48:50.757: E/AndroidRuntime(7863):  at android.support.v4.app.FragmentActivity.onCreate(FragmentActivity.java:208) 
04-25 20:48:50.757: E/AndroidRuntime(7863):  at com.fisherman.activity.HomeActivity.onCreate(HomeActivity.java:50) 
04-25 20:48:50.757: E/AndroidRuntime(7863):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
04-25 20:48:50.757: E/AndroidRuntime(7863):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1722) 
04-25 20:48:50.757: E/AndroidRuntime(7863):  ... 12 more 
04-25 20:48:50.757: E/AndroidRuntime(7863): Caused by: java.lang.InstantiationException: com.fisherman.activity.HomeActivity$ProgressDialogFragment 
04-25 20:48:50.757: E/AndroidRuntime(7863):  at java.lang.Class.newInstanceImpl(Native Method) 
04-25 20:48:50.757: E/AndroidRuntime(7863):  at java.lang.Class.newInstance(Class.java:1409) 
04-25 20:48:50.757: E/AndroidRuntime(7863):  at android.support.v4.app.Fragment.instantiate(Fragment.java:394) 

Answer 1

HomeActivity $ 2.onPostExecute (HomeActivity.java:268)

Czy w oknie asynchronicznym jest wyświetlane okno dialogowe połączenia?

Answer 2

Czy zamknąć okno dialogowe na postexutute? może utworzyć aplikację do awarii Więc jeśli zapomniałeś zamknąć okno dialogowe, odrzuć je na postexutute.