handle onlongclicklistener of menus

I need to handle the selected row in listview on long click on the row but because am using menus I can't override the onclicklistener. I am trying to do this:

开发者_开发知识库listView.setOnLongClickListener(new OnLongClickListener() {
    @Override
    public boolean onLongClick(View v) {
        taskPosition = listView.getSelectedItemPosition();
        return true;
    }
});

but it doesn't work. Can anyone help me?

i got the value of listView.getSelectedItemPosition(); is equal -1

Of course. Rows typically are not selected. Rows are only selected if the user is using a pointing device (D-pad, trackball, etc.).

i need to handle the selection longclick on listview and use it in onContextItemSelected to perform action

No, you don't. You either use context menus or you use a long-click listener with a widget. You do not use both.

If you are trying to determine what row was long-clicked from onContextItemSelected(), here is a sample project that will demonstrate that for you, if your adapter is an ArrayAdapter. If you are using a CursorAdapter, here is a different sample project that will demonstrate this for you.