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

Question

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?

Does this answer your question? [Dialog throwing "Unable to add window — token null is not for an application” with getApplication() as context](https://stackoverflow.com/questions/5796611/dialog-throwing-unable-to-add-window-token-null-is-not-for-an-application-wi) — Kaibo, Nov 05 '19 at 08:56

score 55 · Accepted Answer · answered Sep 26 '13 at 09:52

55

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! : )

answered Sep 26 '13 at 09:52

hardartcore

16,886
12
75
101

3

how to do it in a service? – Kaveesh Kanwal Oct 17 '16 at 05:03
@KaveeshKanwal here: http://stackoverflow.com/a/31221469/6144372 You can say thanks later! :) – Hammad Nasir Dec 13 '16 at 09:41

score 14 · Answer 2 · answered Oct 27 '15 at 03:24

14

In my case I was trying to create my dialog like this:

new Dialog(getApplicationContext());

So I had to change for:

new Dialog(MyActivity.this);

And it started working.

answered Oct 27 '15 at 03:24

Varun Bhatia

4,326
32
46

score 7 · Answer 3 · edited Jun 20 '20 at 09:12

Below are the things you can do to get it over from issue.

Instead of using
```
  context 
```
you should use
```
  ActivityName.this 
```
if you are using getApplicationContext(), then use below flag before using getApplicationContext ()
```
  dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT)  
```

Add the following permission to your manifest:

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

score 4 · Answer 4 · answered Sep 23 '16 at 14:31

4

I changed:

ProgressDialog(getApplicationContext());

to:

ProgressDialog(MainActivity.this);

,

answered Sep 23 '16 at 14:31

mayur saini

209
7
17

score 3 · Answer 5 · answered Sep 26 '13 at 10:04

3

Send in activity, rather than context.

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

answered Sep 26 '13 at 10:04

Adil Bhatty

17,190
34
81
118

score 1 · Answer 6 · edited Nov 08 '17 at 11:51

1

I changed getApplicationContext() to

activity.this

it will work

edited Nov 08 '17 at 11:51

Phil3992

1,059
6
21
45

answered Nov 08 '17 at 10:59

SSKWEB Android

31
2

score 0 · Answer 7 · answered Oct 21 '19 at 14:11

0

Change from getApplicationContext() or getApplication() to ActivityName.this

For more information, look at this Dialog throwing "Unable to add window — token null is not for an application” with getApplication() as context

answered Oct 21 '19 at 14:11

Kaibo

111
1
4

score 0 · Answer 8 · answered Dec 31 '19 at 11:01

0

Because of inappropriate Context:

You need to be ensured that the Context you provide is the activity context.

AlertDialog.Builder alertDialog = new AlertDialog.Builder(provide activity Context here);

answered Dec 31 '19 at 11:01

Monir Zzaman

459
4
7

score 0 · Answer 9 · answered Jan 11 '20 at 12:48

Struggle on it long time!

If you has this issue in Android SDK 26+, it is caused by bellow wrong setting:

mWindowParams.type = LayoutParams.TYPE_TOAST;

TYPE_TOAST: This constant was deprecated in API level 26. for non-system apps. Use TYPE_APPLICATION_OVERLAY instead.

SYSTEM_ALERT_WINDOW PERMISSION on API 26 not working as expected. Permission denied for window type 2002

score 0 · Answer 10 · answered Dec 29 '20 at 03:38

0

Add the permission on manifest

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>

answered Dec 29 '20 at 03:38

HasanToufiqAhamed

751
1
5
17

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

10 Answers10