AlertDialog.show() makes my app crash

here's my problem :

I'm trying to show a AlertDialog, but i can't seem to be able to do it.

Here's my code :

tv.setOnClickListener(new OnClickListener()    {        @Override        public void onClick(View arg0)        {            final EditText input = new EditText(c);            AlertDialog.Builder adb = new AlertDialog.Builder(c);            adb.setTitle(lb)            .setMessage("Test")            .setView(input)            .setPositiveButton("Ok", new DialogInterface.OnClickListener()            {                @Override                public void onClick(DialogInterface dialog, int which)                {                    //tv.setText(input.getEditableText().toString());                    Toast.makeText(c, input.getEditableText().toString(), Toast.LENGTH_LONG).show();                 }            })            .setNegativeButton("Cancel", new DialogInterface.OnClickListener()            {                  public void onClick(DialogInterface dialog, int whichButton)                  {                      dialog.cancel();                  }            }).show();        }    });

I want to show this AlertDialog when user click on a label, then change the label value with the edit text one when user press OK.

But when it comes to show the dialog on click, it crashes.

07-18 16:04:59.240: E/AndroidRuntime(10503): FATAL EXCEPTION: main07-18 16:04:59.240: E/AndroidRuntime(10503):    android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application07-18 16:04:59.240: E/AndroidRuntime(10503):    at     android.view.ViewRootImpl.setView(ViewRootImpl.java:710)07-18 16:04:59.240: E/AndroidRuntime(10503):    at   android.view.WindowManagerImpl.addView(WindowManagerImpl.java:345)07-18 16:04:59.240: E/AndroidRuntime(10503):    at   android.view.WindowManagerImpl.addView(WindowManagerImpl.java:224)07-18 16:04:59.240: E/AndroidRuntime(10503):    at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:149)07-18 16:04:59.240: E/AndroidRuntime(10503):    at android.app.Dialog.show(Dialog.java:277)07-18 16:04:59.240: E/AndroidRuntime(10503):    at android.app.AlertDialog$Builder.show(AlertDialog.java:932)07-18 16:04:59.240: E/AndroidRuntime(10503):    at com.technicachat.webdatadomo.Consignes$2$1.run(Consignes.java:114)07-18 16:04:59.240: E/AndroidRuntime(10503):    at android.app.Activity.runOnUiThread(Activity.java:4784)07-18 16:04:59.240: E/AndroidRuntime(10503):    at com.technicachat.webdatadomo.Consignes$2.onClick(Consignes.java:90)07-18 16:04:59.240: E/AndroidRuntime(10503):    at android.view.View.performClick(View.java:4211)07-18 16:04:59.240: E/AndroidRuntime(10503):    at android.view.View$PerformClick.run(View.java:17267)07-18 16:04:59.240: E/AndroidRuntime(10503):    at android.os.Handler.handleCallback(Handler.java:615)07-18 16:04:59.240: E/AndroidRuntime(10503):    at android.os.Handler.dispatchMessage(Handler.java:92)07-18 16:04:59.240: E/AndroidRuntime(10503):    at android.os.Looper.loop(Looper.java:137)07-18 16:04:59.240: E/AndroidRuntime(10503):    at android.app.ActivityThread.main(ActivityThread.java:4898)07-18 16:04:59.240: E/AndroidRuntime(10503):    at java.lang.reflect.Method.invokeNative(Native Method)07-18 16:04:59.240: E/AndroidRuntime(10503):    at java.lang.reflect.Method.invoke(Method.java:511)07-18 16:04:59.240: E/AndroidRuntime(10503):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)07-18 16:04:59.240: E/AndroidRuntime(10503):    at  com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)07-18 16:04:59.240: E/AndroidRuntime(10503):    at dalvik.system.NativeStart.main(Native Method)

Fewer lines before i got this message :

07-18 16:04:56.645: I/Choreographer(10503): Skipped 32 frames!  The application may be doing too much work on its main thread.

I know what it means, but i'm just showing a dialog, it's not this much work !

I hope you guys can help me !

Bye