Render UI out side of UI thread

Rendering is not available for threads other than the main thread, or UI thread. Put the following run thread creation method in a background function within an activity achieves the goal:

/* 3) Run a UI thread to catch the UI update*/
            runOnUiThread(new Runnable() {
                public void run() {
                    if (rendernow == 1) {
                        selectMenu = (GridView)findViewById(R.id.grid_view);
                        selectMenu.setAdapter(adapter);
                        selectMenu.setOnItemClickListener(new OnItemClickListener() {
                            @Override
                            public void onItemClick(AdapterView<?> parent, View v,
                                    int position, long id) {
                                    /* Handling click event for GridView */
                            }
                        });
                        rendernow = 0;
                    }
                }
             });

Reference links
http://stackoverflow.com/questions/5161951/android-only-the-original-thread-that-created-a-view-hierarchy-can-touch-its-vi