Simple dialog error with activity - android.view.WindowManager$BadTokenException

Question

I have the main activity calling a second activity. This second activity calls a viewholder java class from which an alert dialog is called:

                    Log.w(LOG_TAG, "call the alertdialog");
                    showAlertDialog();


public void showAlertDialog() {
    /** define onClickListener for dialog */
    DialogInterface.OnClickListener listener
            = new   DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            // do some stuff eg: context.onCreate(super)
        }
    };

    /** create builder for dialog */
    AlertDialog.Builder builder = new AlertDialog.Builder(NFLActivity.context)
            .setCancelable(false)
            .setMessage("You have made all bets. Select OK to submit...")
            .setTitle("All Bets Are In")
            .setNegativeButton("Return", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialogInterface, int i) {

The app crashes with this: 06-29 10:03:31.340 3740-3740/com.bab_c.picksandbets E/AndroidRuntime: FATAL EXCEPTION: main Process: com.bab_c.picksandbets, PID: 3740 android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is your activity running?

I have researched to find that the dialog needs an activity but when use the second activity showAlertDialog(SecondActivity.context) it still fails.

Answer 1

First of all, use viewHolder class to just hold the views and call the alert from second Activity using the viewHolder's view.

and second thing, don't make context as static