user2576008 user2576008 - 2 months ago 10
Android Question

Android Error: Unable to add window -- token null is not for an application

Hy. I tried to create an alert dialog but when I run my application, is throw an exception

09-26 12:43:21.949: E/AndroidRuntime(14618): FATAL EXCEPTION: main
09-26 12:43:21.949: E/AndroidRuntime(14618): android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewRootImpl.setView(ViewRootImpl.java:687)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:301)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:215)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:140)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.app.Dialog.show(Dialog.java:278)
09-26 12:43:21.949: E/AndroidRuntime(14618): at com.example.stampp.UI.Rewards.DeleteRewardsFragment$1.onItemClick(DeleteRewardsFragment.java:80)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.widget.AdapterView.performItemClick(AdapterView.java:292)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.widget.AbsListView.performItemClick(AbsListView.java:1394)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.widget.AbsListView$PerformClick.run(AbsListView.java:3024)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.widget.AbsListView.onTouchEvent(AbsListView.java:3846)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.View.dispatchTouchEvent(View.java:5629)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1964)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1725)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1970)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1739)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1970)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1739)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1970)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1739)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1970)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1739)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1970)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1739)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1970)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1739)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1970)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1739)
09-26 12:43:21.949: E/AndroidRuntime(14618): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2062)
09-26 12:43:21.949: E/AndroidRuntime(14618): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1400)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.app.Activity.dispatchTouchEvent(Activity.java:2369)
09-26 12:43:21.949: E/AndroidRuntime(14618): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2010)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.View.dispatchPointerEvent(View.java:5809)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3130)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2658)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewRootImpl.processInputEvents(ViewRootImpl.java:1015)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2667)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.os.Handler.dispatchMessage(Handler.java:99)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.os.Looper.loop(Looper.java:137)
09-26 12:43:21.949: E/AndroidRuntime(14618): at android.app.ActivityThread.main(ActivityThread.java:4517)
09-26 12:43:21.949: E/AndroidRuntime(14618): at java.lang.reflect.Method.invokeNative(Native Method)
09-26 12:43:21.949: E/AndroidRuntime(14618): at java.lang.reflect.Method.invoke(Method.java:511)
09-26 12:43:21.949: E/AndroidRuntime(14618): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:993)
09-26 12:43:21.949: E/AndroidRuntime(14618): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:760)
09-26 12:43:21.949: E/AndroidRuntime(14618): at dalvik.system.NativeStart.main(Native Method)


This is my code:

public class DeleteRewardsFragment extends Fragment{

private Context context;

private FragmentsActivity activity;

private ListView listView;
private View myFragmentView;
private DeleteRewardsAdapter adapter;
private String[] values;

@SuppressLint("ResourceAsColor")
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {

myFragmentView = inflater.inflate(R.layout.listview, container, false);
listView = (ListView) myFragmentView.findViewById(android.R.id.list);


activity = (FragmentsActivity) getActivity();
context = activity.getApplicationContext();

values = new String[4];

adapter = new DeleteRewardsAdapter(context, values);
listView.setAdapter(adapter);
listView.setOnItemClickListener(deleteEvent);

return myFragmentView;

}

private OnItemClickListener deleteEvent = new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(context);
alertDialog .setTitle("Jetzt löschen?");
alertDialog .setMessage("Die in deisem Store gesammelten stampss gehen debei verloren!")
.setCancelable(false)
.setPositiveButton("Abbrechen", new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
values = new String[values.length-1];
adapter = new DeleteRewardsAdapter(context, values);
listView.setAdapter(adapter);
}
})
.setNegativeButton("Löschen", new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});

AlertDialog dialog = alertDialog.create();
dialog.show();

}
};

}


Can someone to help me?

Answer

To add AlertDialog to your Activity or Fragment you have to use your Activity's instance, not your application's which you are doing in your code. Create your AlertDialog like this :

AlertDialog.Builder alertDialog  = new AlertDialog.Builder(getActivity());

And that should do the trick for you! : )

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