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POAndroid AlertDialog box WindowManager$BadTokenException problem
 

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    <p>I am using the the following code for a context menu and then if user chose delete, a dialog massage will appear.</p> <pre><code>infos.setOnCreateContextMenuListener(new OnCreateContextMenuListener(){ //@Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) { menu.setHeaderTitle("Context Menu"); menu.add(0, CONTEXT_EDIT, 0, "Edit Item"); menu.add(0, CONTEXT_DELETE, 1, "Delete Item"); } }); public boolean onContextItemSelected(MenuItem item) { AdapterView.AdapterContextMenuInfo menuInfo = (AdapterView.AdapterContextMenuInfo)item.getMenuInfo(); final Long _id = menuInfo.id; //selected_row = menuInfo.position; // To get the id of the clicked item in the list use menuInfo.id switch (item.getItemId()) { case CONTEXT_EDIT: addEditRes(_id); break; case CONTEXT_DELETE: AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage("Are you sure you want to delete?") .setCancelable(false) .setPositiveButton("Yes", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { infoDataHelper.deleteRes(_id); model = infoDataHelper.getCursor(addType); adapter.changeCursor(model); } }) .setNegativeButton("No", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { dialog.cancel(); } }); AlertDialog alert = builder.create(); alert.show(); break; default: return super.onContextItemSelected(item); } adapter.notifyDataSetChanged(); return true; } </code></pre> <p>But as soon i am choosing the delete, it is giving the following error.</p> <pre><code>android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application </code></pre> <p>What is the problem in my code?</p>
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