在显示它们时更改Android ContextMenu项目（ICS之前的版本）

Question

I'm trying to set ContextMenu item invisible ( item.setVisible(false) ) while it is already displayed (saved reference to the menu as a member during onCreateContextMenu() ).

While doing this on 2.3 I get exception:

01-17 09:54:42.563: E/AndroidRuntime(2494): java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread. [in ListView(16908823, class com.android.internal.app.AlertController$RecycleListView) with Adapter(class com.android.internal.view.menu.MenuBuilder$MenuAdapter)]

All my code is ran in UI thread of course.

I guess that ContextMenu in 2.3 is implemented using ListView and blackened by corresponding `ListAdapterv. In ICS this exception is not thrown and the item becomes invisible as I've planned.

Anybody has an Idea how to do it on 2.3?

One workaround is not to emulate ContextMenu via Dialog , but I'd rather stick to ContextMenu

Answer 1

You can try getting the Menu adapter by:

public boolean onContextItemSelected(MenuItem item) { AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)item.getMenuInfo();

// ... Do Something

    adapter.notifyDataSetChanged();
}
return super.onContextItemSelected(item);    

}